{"id":2048,"date":"2026-07-22T08:06:08","date_gmt":"2026-07-22T08:06:08","guid":{"rendered":"https:\/\/gearrack.top\/?p=2048"},"modified":"2026-07-22T08:06:08","modified_gmt":"2026-07-22T08:06:08","slug":"pom-gears-for-food-processing-equipment","status":"publish","type":"post","link":"https:\/\/gearrack.top\/ja\/pom-gears-for-food-processing-equipment\/","title":{"rendered":"POM Gears for Food Processing Equipment"},"content":{"rendered":"<div style=\"font-family: 'Helvetica Neue',Arial,sans-serif; color: #1c2330; line-height: 1.8; background: #f4f6f9; margin: 0; padding: 0;\">\n<div style=\"background: #1c2330; background-image: linear-gradient(148deg,rgba(28,35,48,0.97) 0%,rgba(28,35,48,0.86) 55%,rgba(37,99,168,0.40) 100%),url('https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/Plastic-Gears.webp'); background-size: cover; background-position: center 40%; padding: clamp(52px,8vw,96px) clamp(20px,5vw,64px) clamp(56px,7vw,80px); position: relative;\">\n<div style=\"position: absolute; top: 0; left: 0; right: 0; height: 5px; background: linear-gradient(90deg,#1c2330,#2563a8,#f97316,#2563a8,#1c2330);\"><\/div>\n<div style=\"position: absolute; bottom: -1px; left: 0; right: 0; height: 48px; background: #f4f6f9; clip-path: polygon(0 100%,100% 100%,100% 0);\"><\/div>\n<div style=\"max-width: 800px; position: relative; z-index: 2;\"><span style=\"display: inline-block; background: #2563a8; color: #fff; font-size: 9px; font-weight: 800; letter-spacing: 3px; text-transform: uppercase; padding: 4px 12px; border-radius: 2px; margin-bottom: 18px;\">GEAR APPLICATION GUIDE \u00b7 PLASTIC GEAR \u00b7 PL03<\/span><\/p>\n<h1 style=\"font-size: clamp(26px,4.5vw,46px); font-weight: 900; color: #fff; line-height: 1.1; margin: 0 0 18px; letter-spacing: -0.5px;\">POM Gears for Food Processing Equipment:<br \/>\n<span style=\"color: #f97316;\">Delrin Acetal Gear Applications in Food Machinery, Conveyors and Beverage Systems<\/span><\/h1>\n<p style=\"font-size: clamp(14px,1.8vw,16px); color: #8fa3bf; line-height: 1.72; margin: 0 0 26px; max-width: 660px;\">Polyoxymethylene (POM) \u2014 sold under the DuPont trade name Delrin and also marketed as acetal or polyacetal \u2014 is the most widely used engineering plastic for food processing gear applications where a combination of high dimensional stability, low moisture absorption, excellent machinability, good wear resistance, and FDA-compliant composition is needed. POM gears are found in virtually every segment of the food industry: in the mixing shaft drives of commercial food processors, in the conveyor belt indexing mechanisms of meat slicing lines, in the dosing and portioning drives of filling machines for dairy and beverages, and in the dispenser mechanisms of coffee machines and vending equipment. Understanding when POM outperforms nylon (PA6, PA66) in food gear applications \u2014 and when it does not \u2014 is essential for specifying the correct material for each specific food processing drive.<\/p>\n<div style=\"display: flex; flex-wrap: wrap; gap: 8px;\"><span style=\"border: 1px solid rgba(37,99,168,0.7); color: #7fa8d4; font-size: 10px; font-weight: bold; padding: 5px 13px; border-radius: 2px; letter-spacing: 1px; text-transform: uppercase;\">POM-H \u00b7 POM-C \u00b7 Delrin \u00b7 M1\u2013M6 \u00b7 FDA 21 CFR<\/span><br \/>\n<span style=\"border: 1px solid rgba(249,115,22,0.6); color: #f97316; font-size: 10px; font-weight: bold; padding: 5px 13px; border-radius: 2px; letter-spacing: 1px; text-transform: uppercase;\">\u221240\u00b0C to +90\u00b0C \u00b7 Moisture Stable \u00b7 CIP Compatible<\/span><br \/>\n<span style=\"border: 1px solid rgba(255,255,255,0.15); color: #8fa3bf; font-size: 10px; font-weight: bold; padding: 5px 13px; border-radius: 2px; letter-spacing: 1px; text-transform: uppercase;\">Food Conveyor \u00b7 Mixer \u00b7 Filler \u00b7 Vending \u00b7 Beverage<\/span><\/div>\n<\/div>\n<\/div>\n<div style=\"max-width: 1100px; margin: 0 auto; padding: 0 clamp(16px,3vw,40px);\">\n<div style=\"display: flex; flex-wrap: wrap; gap: 2px; background: #c8d4e3; border-radius: 6px; overflow: hidden; box-shadow: 0 4px 18px rgba(28,35,48,0.11); margin-top: 48px;\">\n<div style=\"flex: 1 1 150px; background: #fff; padding: 20px 22px;\">\n<p style=\"font-size: 9px; font-weight: 800; letter-spacing: 2.5px; text-transform: uppercase; color: #2563a8; margin: 0 0 6px;\">POM VS NYLON<\/p>\n<p style=\"font-size: 26px; font-weight: 900; color: #1c2330; margin: 0 0 5px; line-height: 1;\">3\u00d7 Lower Moisture<\/p>\n<p style=\"font-size: 12.5px; color: #64748b; margin: 0; line-height: 1.5;\">POM&#8217;s key advantage over PA6\/PA66 in food processing: moisture absorption. PA6 absorbs 2.8\u20133.5% moisture by weight at 100% RH (producing a tooth thickness increase of 0.3\u20130.5% due to swelling). POM-H absorbs only 0.2\u20130.3% at saturation \u2014 essentially dimensionally stable in wet food environments. This makes POM the standard choice for food gear applications where CIP (Clean-In-Place) water and steam cleaning cycles would cause nylon gears to swell and jam in their housings<\/p>\n<\/div>\n<div style=\"flex: 1 1 150px; background: #fff; padding: 20px 22px;\">\n<p style=\"font-size: 9px; font-weight: 800; letter-spacing: 2.5px; text-transform: uppercase; color: #2563a8; margin: 0 0 6px;\">MODULE RANGE<\/p>\n<p style=\"font-size: 26px; font-weight: 900; color: #1c2330; margin: 0 0 5px; line-height: 1;\">M1 \u2013 M6<\/p>\n<p style=\"font-size: 12.5px; color: #64748b; margin: 0; line-height: 1.5;\">POM food gear module range. Coffee machine \/ vending: M1\u2013M1.5. Beverage dispensing \/ dosing: M1.5\u2013M2. Food processor mixing shaft: M2\u2013M3. Conveyor indexing drive: M3\u2013M4. Filling machine main drive: M3\u2013M5. Meat processing auxiliary: M4\u2013M6. All food processing POM gears: machined from homopolymer POM-H rod or injection moulded from POM-C (copolymer)<\/p>\n<\/div>\n<div style=\"flex: 1 1 150px; background: #fff; padding: 20px 22px;\">\n<p style=\"font-size: 9px; font-weight: 800; letter-spacing: 2.5px; text-transform: uppercase; color: #2563a8; margin: 0 0 6px;\">TEMP RANGE<\/p>\n<p style=\"font-size: 26px; font-weight: 900; color: #1c2330; margin: 0 0 5px; line-height: 1;\">\u221240\u00b0C \/ +90\u00b0C<\/p>\n<p style=\"font-size: 12.5px; color: #64748b; margin: 0; line-height: 1.5;\">POM food gear operating temperature range. Lower end: POM retains toughness to \u221240\u00b0C (useful for refrigerated conveyor applications). Upper continuous: 90\u00b0C for POM-H, 100\u00b0C for POM-C. Above 90\u00b0C POM softens progressively \u2014 for hot-fill beverage (85\u00b0C product temp) and pasteuriser conveyors (85\u201395\u00b0C), Korea Ever-Power recommends PEEK instead of POM for any gear in direct contact with hot product<\/p>\n<\/div>\n<div style=\"flex: 1 1 150px; background: #fff; padding: 20px 22px;\">\n<p style=\"font-size: 9px; font-weight: 800; letter-spacing: 2.5px; text-transform: uppercase; color: #2563a8; margin: 0 0 6px;\">FDA STATUS<\/p>\n<p style=\"font-size: 26px; font-weight: 900; color: #1c2330; margin: 0 0 5px; line-height: 1;\">FDA 21 CFR 177.2470<\/p>\n<p style=\"font-size: 12.5px; color: #64748b; margin: 0; line-height: 1.5;\">POM food gear regulatory compliance. FDA 21 CFR 177.2470 (Polyoxymethylene copolymers): approved for repeated use in contact with all food types, including aqueous, fatty, and acidic foods. EU Regulation 10\/2011 (plastic materials for food contact): POM listed. NSF Standard 51 (food equipment materials): POM approved. Korea Ever-Power POM food gears are manufactured from food-grade POM-H or POM-C rod\/sheet that carries an FDA 21 CFR 177.2470 material certificate from the polymer supplier<\/p>\n<\/div>\n<\/div>\n<section style=\"margin: 64px 0 0;\">\n<h2 style=\"font-size: clamp(18px,2.6vw,24px); font-weight: 800; color: #1c2330; margin: 0 0 20px; padding-bottom: 10px; border-bottom: 3px solid #2563a8;\">POM vs Nylon in Food Processing Gears \u2014 The Critical Material Differences<\/h2>\n<p style=\"font-size: 15.5px; margin: 0 0 20px;\">The choice between POM and PA6\/PA66 for food processing gear applications is more nuanced than simply selecting the material with the higher strength or the lower cost \u2014 each material has specific advantages in the food environment that make it the correct choice for certain applications and the wrong choice for others. The decisive comparison is across five properties: moisture absorption and dimensional stability, chemical resistance to CIP agents, strength and stiffness, temperature resistance, and food contact regulatory compliance. POM leads in moisture stability (0.2% vs 2.8% absorption) and dimensional stability in wet cleaning environments, and is comparable in food contact compliance. Nylon (PA6\/PA66) leads in impact toughness \u2014 the Charpy notched impact energy of PA6 is 6.5 kJ\/m\u00b2, compared to 6.0 kJ\/m\u00b2 for POM-H, making nylon the preferred material for food processing gears in applications with impact loading (meat bone-in product, frozen block processing). Nylon also has significantly higher elongation to break than POM (200% vs 25%), meaning a nylon gear will deflect visibly under overload and warn the operator before fracture, while a POM gear will fracture more abruptly under the same overload.<\/p>\n<p style=\"font-size: 15.5px; margin: 0 0 20px;\">Korea Ever-Power&#8217;s <a style=\"color: #2563a8; font-weight: bold; text-decoration: none; border-bottom: 2px solid #f97316;\" href=\"https:\/\/gearrack.top\/ja\/product-category\/plastic-gear\/\">POM gears for food processing equipment<\/a> are manufactured from food-grade POM-H (DuPont Delrin 500 or equivalent, with FDA 21 CFR 177.2470 material certificate from the polymer supplier) for standard food processing applications, and POM-C (copolymer, BASF Ultraform N2320 or equivalent) for applications requiring better long-term thermal stability above 80\u00b0C or improved resistance to acid CIP agents (POM-C has marginally better acid stability than POM-H because the copolymer terminator groups are more resistant to chain-end depolymerisation in acid). The machining of POM food gears follows a standard process: rough turning of the gear blank from rod stock, rough hobbing of the tooth profile, then finish hobbing or finish profile grinding to the required tolerance. POM machines very cleanly (better surface finish than nylon at the same tooling and parameters), producing tooth flanks with Ra \u2264 0.8 \u03bcm from a well-maintained hobbing machine \u2014 significantly better than the Ra 1.6\u20133.2 \u03bcm typical of machined nylon gears. This better surface finish directly reduces the gear mesh friction coefficient and wear rate in dry-running food processing gear applications.<\/p>\n<p style=\"font-size: 15.5px; margin: 0 0 24px;\">The chemical resistance of POM food gears to CIP cleaning agents is a critical application engineering consideration that is often underspecified. Standard CIP chemicals used in food processing include alkaline detergents (NaOH-based, pH 11\u201313), acid rinses (phosphoric or citric acid, pH 2\u20134), and sanitising agents (chlorine-based at 200\u2013500 ppm, or peracetic acid at 100\u2013200 ppm). POM-H has good resistance to the alkaline NaOH solutions at the concentrations and temperatures used in standard food CIP (1\u20132% NaOH at 70\u201380\u00b0C), but moderate resistance to strong acid at elevated temperature \u2014 concentrated phosphoric acid (above 5%) at 60\u00b0C can cause slow surface degradation of POM-H over repeated exposure cycles. POM-C has better acid resistance than POM-H at temperatures up to 60\u00b0C. Peracetic acid (PAA) is the CIP agent that most severely limits POM gear life \u2014 PAA at 0.1\u20130.2% concentration (common in dairy and beverage CIP) causes measurable surface oxidation of POM after repeated exposure at 40\u201350\u00b0C, reducing the tooth surface hardness and increasing the wear rate in subsequent operation. Korea Ever-Power recommends POM-C over POM-H for any food processing gear that is directly wetted by PAA sanitising cycles, and provides a CIP compatibility assessment as part of the application engineering review for food processing POM gear enquiries.<\/p>\n<figure style=\"margin: 0 0 28px;\"><img decoding=\"async\" style=\"width: 100%; height: auto; display: block; border-radius: 6px; border: 1px solid #d1d9e6;\" title=\"POM Acetal Food Processing Gear \u2014 Korea Ever-Power\" src=\"https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/Plastic-Gears.webp\" alt=\"POM acetal Delrin food processing gear Korea Ever-Power FDA compliant\" \/><figcaption style=\"font-size: 12.5px; color: #64748b; margin-top: 10px; padding: 8px 14px; border-left: 4px solid #f97316; background: #fff; line-height: 1.65;\">Korea Ever-Power food-grade POM-H machined gear range for food processing applications \u2014 M1.5 coffee machine dispenser gears (left, white, 0.5 g per gear), M3 food conveyor indexing gears (centre, natural white, 18 g), and M5 commercial food processor mixing drive gears (right, natural white, 85 g). All three grades manufactured from DuPont Delrin 500 POM-H rod stock with FDA 21 CFR 177.2470 material certification. The natural white colour of unfilled POM-H is an important property in food processing \u2014 any broken gear tooth or gear fragment that falls into the food stream can be detected by the food production line\u2019s X-ray foreign body detection system (operating at 50\u2013120 kV), since POM (density 1.41 g\/cm\u00b3) is detectable at fragment sizes above 3\u20135 mm when the X-ray detection system is calibrated for plastic. Korea Ever-Power also offers blue-pigmented food-grade POM for applications where the production line uses visual colour checks rather than X-ray \u2014 the blue colour contrasts with the majority of food products, making plastic gear fragments visually identifiable during visual inspection of the production stream. The blue pigment is a food-grade phthalocyanine blue (PB15:3) that complies with FDA 21 CFR 178.3297.<\/figcaption><\/figure>\n<\/section>\n<section style=\"margin: 64px 0 0;\">\n<h2 style=\"font-size: clamp(18px,2.6vw,24px); font-weight: 800; color: #1c2330; margin: 0 0 20px; padding-bottom: 10px; border-bottom: 3px solid #2563a8;\">POM Gear Applications in Food Processing<\/h2>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px; margin: 0 0 28px;\">\n<div style=\"flex: 1 1 220px; background: #fff; border: 1px solid #d1d9e6; border-top: 4px solid #2563a8; border-radius: 4px; padding: 20px 22px;\">\n<h3 style=\"font-size: 14px; font-weight: 800; color: #1c2330; margin: 0 0 12px;\">Beverage and Dairy Filling Machines<\/h3>\n<p style=\"font-size: 13.5px; color: #4b5768; line-height: 1.72; margin: 0 0 12px;\">M2\u2013M4, POM-C, machined from rod stock, natural white FDA colour, bore keyway for drive shaft, CIP compatible (1% NaOH, PAA 0.1%), operating speed 100\u2013300 RPM, output torque \u2264 20 Nm per gear, continuous duty. Beverage and dairy filling machine drive gears (the metering star wheel drives, the filling carousel indexing drives, and the capping head drives) are the highest-volume single food processing application for POM gears. The CIP wash-down cycle is typically 2\u20134 times daily on a beverage filling line, making moisture stability the primary material selection criterion \u2014 POM-C outperforms PA6 in this application because the POM gear dimensions remain constant across the production day (from dry startup in the morning to fully wetted steady-state after the first CIP cycle), while a PA6 gear would swell measurably over the first 30\u201360 minutes of each production day as it absorbs moisture, potentially causing jamming in tight-clearance metering star wheel housings. Korea Ever-Power beverage filling machine POM gear range covers the most common star wheel module and tooth count combinations for major filling machine brands (KHS, Krones, Sidel, SIDCO, GEA, Tetra Pak filling line equipment).<\/p>\n<p style=\"font-size: 12px; font-weight: bold; color: #2563a8; margin: 0;\">POM-C \u00b7 M2\u2013M4 \u00b7 CIP stable \u00b7 beverage OEM<\/p>\n<\/div>\n<div style=\"flex: 1 1 220px; background: #fff; border: 1px solid #d1d9e6; border-top: 4px solid #f97316; border-radius: 4px; padding: 20px 22px;\">\n<h3 style=\"font-size: 14px; font-weight: 800; color: #1c2330; margin: 0 0 12px;\">Food Conveyor and Indexing Drives<\/h3>\n<p style=\"font-size: 13.5px; color: #4b5768; line-height: 1.72; margin: 0 0 12px;\">M3\u2013M5, POM-H or POM-C, machined or injection moulded depending on volume, white or blue (visually detectable), operating temperature \u221215\u00b0C (refrigerated conveyor) to +40\u00b0C (ambient), shock resistant (food products fall onto conveyor from above, transmitting impact through the conveyor drive to the indexing gear). Food processing conveyor indexing gears (the intermittent-motion gear drives that advance a conveyor by one product pitch at each indexing cycle, then stop to allow a process operation on the product in the index position) use POM gears because the intermittent motion and frequent starts create a dynamic loading environment where the dimensional stability of POM (vs nylon\u2019s moisture-induced dimensional changes) is critical for the precise index positioning accuracy that maintains product alignment in the process station. Korea Ever-Power conveyor indexing POM gear range covers M3\u2013M5 in standard tooth counts for the index drives of meat portioning lines, bread baking lines, cheese cutting lines, and fresh produce packing conveyors used by major food processing equipment builders in Australia, the Netherlands, the UK, and Germany.<\/p>\n<p style=\"font-size: 12px; font-weight: bold; color: #f97316; margin: 0;\">POM-H \u00b7 M3\u2013M5 \u00b7 blue detectable option \u00b7 \u221215\u00b0C<\/p>\n<\/div>\n<div style=\"flex: 1 1 220px; background: #fff; border: 1px solid #d1d9e6; border-top: 4px solid #1c2330; border-radius: 4px; padding: 20px 22px;\">\n<h3 style=\"font-size: 14px; font-weight: 800; color: #1c2330; margin: 0 0 12px;\">Coffee Machine and Vending Equipment<\/h3>\n<p style=\"font-size: 13.5px; color: #4b5768; line-height: 1.72; margin: 0 0 12px;\">M1\u2013M2, POM-H injection moulded (volumes above 5,000 pieces per year make injection moulding more economical than machining at M1\u2013M2), tight dimensional tolerance (\u00b10.05 mm on tooth thickness for consistent coffee dose metering accuracy), operating cycles \u2265 2 million per year (commercial espresso machines brew 50,000\u2013200,000 cups per year, the bean grinder drive gear accumulates 1\u20132 million cycles per year), temperature stability up to 80\u00b0C (the boiler proximity raises the ambient around the grinder drive mechanism to 60\u201380\u00b0C). Coffee machine and vending equipment POM gears operate at the intersection of miniaturised precision (M1\u2013M1.5, tooth height 2.25\u20133.37 mm), high cumulative cycle count (millions per year), and food-safety compliance that makes POM the dominant material choice. Korea Ever-Power injection moulds POM-H coffee machine gears in multi-cavity tools (8\u201316 cavities for M1\u2013M1.5 gears) from DuPont Delrin 500NC10 (natural colour, unreinforced, FDA compliant) \u2014 the NC10 grade has a melt flow rate optimised for the thin-wall filling needed to inject coffee machine gears at M1 without short shots or sink marks on the tooth flanks that would affect the metering accuracy.<\/p>\n<p style=\"font-size: 12px; font-weight: bold; color: #1c2330; margin: 0;\">POM-H \u00b7 M1\u2013M2 \u00b7 injection moulded \u00b7 2M+ cycles\/year<\/p>\n<\/div>\n<\/div>\n<figure style=\"margin: 0 0 28px;\"><img decoding=\"async\" style=\"width: 100%; height: auto; display: block; border-radius: 6px; border: 1px solid #d1d9e6;\" title=\"Korea Ever-Power POM Food Gear Quality Inspection\" src=\"https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/measuring-equipment.webp\" alt=\"Korea Ever-Power POM food gear dimensional inspection FDA quality\" \/><figcaption style=\"font-size: 12.5px; color: #64748b; margin-top: 10px; padding: 8px 14px; border-left: 4px solid #2563a8; background: #fff; line-height: 1.65;\">Korea Ever-Power POM food processing gear dimensional inspection \u2014 over-pin measurement of POM-H gear tooth thickness on a precision bench comparator. POM gears for food processing require tighter dimensional inspection than standard industrial plastic gears because: (1) the tooth thickness directly determines the metering accuracy of filling machines and dosing pumps \u2014 a 0.1 mm tooth thickness error in a M2 metering gear produces a 1.5% dose volume error that may push the filled product outside the legal minimum fill volume requirement; (2) the bore diameter and roundness directly determine the gear&#8217;s position on the drive shaft and its concentricity \u2014 a bore that is 0.05 mm out-of-round produces a cyclic runout of 0.05 mm at the filling cam or star wheel, creating a product pitch variation that causes jams in the filling machine downstream of the cam. Korea Ever-Power food processing POM gears are 100% inspected for tooth thickness (over-pin measurement, \u00b10.03 mm tolerance for metering applications) and bore diameter (bore gauge, \u00b10.02 mm for standard shaft fits). The inspection records are retained with the batch quality file for 5 years \u2014 supporting the food manufacturer\u2019s HACCP documentation requirement for supplier quality evidence on components that are critical-to-function in the filling and metering process.<\/figcaption><\/figure>\n<\/section>\n<figure style=\"margin: 0 0 28px;\"><img decoding=\"async\" style=\"width: 100%; height: auto; display: block; border-radius: 6px; border: 1px solid #d1d9e6;\" title=\"Korea Ever-Power POM Food Gear Manufacturing\" src=\"https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/Ever-Power-workshop-1.webp\" alt=\"Korea Ever-Power POM food gear injection moulding machining manufacturing\" \/><figcaption style=\"font-size: 12.5px; color: #64748b; margin-top: 10px; padding: 8px 14px; border-left: 4px solid #2563a8; background: #fff; line-height: 1.65;\">Korea Ever-Power food-grade POM gear manufacturing facility \u2014 CNC gear hobbing and injection moulding for food processing POM gear production. The manufacturing process for food-grade POM gears differs from standard engineering gear manufacturing in two important quality control steps: (1) <strong>Material segregation:<\/strong> food-grade POM-H and POM-C rod stock and injection moulding pellets are stored in sealed, labelled containers in a dedicated food-grade material rack, physically separated from the industrial engineering plastic stocks. The FDA certification documents for each reel or box of food-grade material are filed with the batch production record \u2014 no food-grade POM gear can be manufactured from unlabelled or uncertified material. (2) <strong>Colour control:<\/strong> natural white and blue food-grade POM are the only colours used for food processing gears at Korea Ever-Power. No coloured pigments from non-food-grade gears are permitted in the food gear production area \u2014 even a trace contamination of non-food pigment in a moulded food gear would violate the FDA material compliance. Korea Ever-Power segregates food and non-food plastic gear production into separate moulding cells, with dedicated tooling and dedicated material handling equipment for each cell.<\/figcaption><\/figure>\n<section style=\"margin: 64px 0 0;\">\n<h2 style=\"font-size: clamp(18px,2.6vw,24px); font-weight: 800; color: #1c2330; margin: 0 0 24px; padding-bottom: 10px; border-bottom: 3px solid #2563a8;\">Frequently Asked Questions \u2014 POM Gears for Food Processing<\/h2>\n<div style=\"display: flex; flex-direction: column; gap: 12px;\">\n<div style=\"background: #fff; border: 1px solid #d1d9e6; border-radius: 4px; overflow: hidden;\">\n<div style=\"padding: 16px 20px; display: flex; align-items: flex-start; gap: 14px; background: #f7f9fc; border-bottom: 1px solid #e8edf4;\"><span style=\"background: #1c2330; color: #f97316; font-size: 10px; font-weight: 800; padding: 3px 10px; border-radius: 2px; white-space: nowrap; letter-spacing: 1px;\">Q 01<\/span><\/p>\n<p style=\"font-size: 14.5px; font-weight: bold; color: #1c2330; line-height: 1.35; margin: 0;\">Our dairy filling machine M3 POM gears are showing surface pitting and small cracks on the tooth flanks after 18 months of service. The machine undergoes CIP with 1% peracetic acid at 40\u00b0C twice daily. Is the PAA damaging the gears?<\/p>\n<\/div>\n<div style=\"padding: 18px 20px;\">\n<p style=\"font-size: 14.5px; color: #374151; line-height: 1.78; margin: 0;\">Tooth flank surface pitting and cracking on POM gears after 18 months of twice-daily PAA CIP exposure is a recognised degradation mode \u2014 the peroxide component of peracetic acid initiates an oxidative chain-scission reaction in the POM-H polymer backbone, progressively reducing the molecular weight at the gear tooth surface. The surface degradation first appears as a dull, chalky appearance (loss of the original machined surface gloss), then as micro-crazing (a fine network of surface cracks visible at \u00d710 magnification), and finally as pitting as the degraded surface layer delaminates under the tooth contact stress. At 1% PAA concentration at 40\u00b0C with twice-daily 20-minute CIP exposure, the total PAA exposure is approximately 240 hours per year. Korea Ever-Power&#8217;s CIP compatibility data for POM-H shows measurable surface degradation after 100\u2013150 hours of PAA exposure at these conditions \u2014 consistent with the 18-month failure timeline you describe. Solutions: (1) <strong>Switch to POM-C:<\/strong> POM copolymer has better PAA resistance than POM-H because the copolymer terminator groups are more resistant to oxidative attack \u2014 POM-C shows measurable degradation only after approximately 200\u2013250 hours of equivalent PAA exposure, extending the service life by 30\u201350%. (2) <strong>Reduce PAA concentration or contact time:<\/strong> if the CIP protocol can be adjusted (with the dairy&#8217;s food safety and hygiene team approval) to 0.05% PAA for 10 minutes (which achieves equivalent log reduction of Listeria monocytogenes as 0.1% at 20 minutes per published food safety literature), the PAA degradation rate of the POM gears is reduced by approximately 60%. (3) <strong>Switch to PEEK:<\/strong> PEEK (polyether ether ketone) has excellent PAA resistance (tested to 1% PAA at 60\u00b0C, 500+ hours without measurable surface degradation) and operates at continuous temperatures to 240\u00b0C. Korea Ever-Power manufactures PEEK food processing gears at M1\u2013M5 \u2014 the cost is approximately 4\u20136\u00d7 POM-C, but the service life in PAA-intensive dairy CIP environments is 3\u20135\u00d7 longer, making PEEK the more economical choice on a cost-per-hour-of-service basis. Korea Ever-Power recommends PEEK for all dairy filling machine gears directly wetted by PAA sanitiser where twice-daily or more frequent CIP cycles are the standard hygiene protocol.<\/p>\n<\/div>\n<\/div>\n<div style=\"background: #fff; border: 1px solid #d1d9e6; border-radius: 4px; overflow: hidden;\">\n<div style=\"padding: 16px 20px; display: flex; align-items: flex-start; gap: 14px; background: #f7f9fc; border-bottom: 1px solid #e8edf4;\"><span style=\"background: #1c2330; color: #f97316; font-size: 10px; font-weight: 800; padding: 3px 10px; border-radius: 2px; white-space: nowrap; letter-spacing: 1px;\">Q 02<\/span><\/p>\n<p style=\"font-size: 14.5px; font-weight: bold; color: #1c2330; line-height: 1.35; margin: 0;\">We are designing a new portion-controlled meat slicing machine for the European market. The slice thickness metering gear operates at \u22125\u00b0C (refrigerated cabinet). Is POM the correct material, and what operating load does Korea Ever-Power recommend as the safe design limit for M3 POM gears at this temperature?<\/p>\n<\/div>\n<div style=\"padding: 18px 20px;\">\n<p style=\"font-size: 14.5px; color: #374151; line-height: 1.78; margin: 0;\">POM is a good choice for the metering gear in a refrigerated meat slicer at \u22125\u00b0C \u2014 it maintains adequate toughness and machinability down to \u221240\u00b0C, significantly better than most other engineering plastics for low-temperature food processing. Design limit recommendation for M3 POM-H gears at \u22125\u00b0C: (1) <strong>Tooth bending stress limit at \u22125\u00b0C:<\/strong> POM-H flexural strength at \u22125\u00b0C is approximately 90 MPa (compared to 68 MPa at 23\u00b0C \u2014 POM stiffens and strengthens at low temperature, unlike nylon which loses toughness below 0\u00b0C unless impact-modified). The tooth bending fatigue stress limit for POM-H gears in standard gear design guidelines (VDI 2736, the German guideline for plastic gears) at 10\u2076 cycles and 23\u00b0C is approximately 20 MPa. At \u22125\u00b0C, this limit can be increased by approximately 20\u201325% to 24\u201325 MPa, reflecting the higher flexural strength at low temperature. (2) <strong>Contact fatigue limit at \u22125\u00b0C:<\/strong> the contact fatigue limit for POM-H against a steel pinion (the common configuration in food metering drives where POM runs against a stainless steel driving pinion) at 23\u00b0C is approximately 30\u201335 MPa. At \u22125\u00b0C, increase by 15% to 35\u201340 MPa. (3) <strong>Recommended operating load for M3 POM-H at \u22125\u00b0C, 24T tooth count, driving against 316L stainless pinion, at 100 RPM:<\/strong> maximum tangential tooth force = \u03c3_F_limit \u00d7 (tooth bending module factor \u00d7 face width) = approximately 25 MPa \u00d7 (M3 \u00d7 20 mm face width \u00d7 tooth form factor 1.2) = 25 \u00d7 (3 \u00d7 20 \u00d7 1.2)\/1,000 = 1.8 N\/mm\u00b2 \u00d7 (face area equivalent) \u2014 for practical design, the safe tangential tooth load for a M3 POM-H gear at \u22125\u00b0C at 10\u2076 cycles is approximately 450\u2013600 N at the pitch circle, corresponding to an output torque of approximately 0.7\u20130.9 Nm at a 30 mm pitch diameter. This is the safe continuous design load \u2014 intermittent loads up to 2\u00d7 this value are acceptable for &lt; 1% of cycles. Korea Ever-Power provides the complete VDI 2736 design calculation for all custom POM food processing gear enquiries.<\/p>\n<\/div>\n<\/div>\n<div style=\"background: #fff; border: 1px solid #d1d9e6; border-radius: 4px; overflow: hidden;\">\n<div style=\"padding: 16px 20px; display: flex; align-items: flex-start; gap: 14px; background: #f7f9fc; border-bottom: 1px solid #e8edf4;\"><span style=\"background: #1c2330; color: #f97316; font-size: 10px; font-weight: 800; padding: 3px 10px; border-radius: 2px; white-space: nowrap; letter-spacing: 1px;\">Q 03<\/span><\/p>\n<p style=\"font-size: 14.5px; font-weight: bold; color: #1c2330; line-height: 1.35; margin: 0;\">What documentation does Korea Ever-Power provide with food processing POM gears to support our machine&#8217;s CE marking and our customer&#8217;s HACCP plan?<\/p>\n<\/div>\n<div style=\"padding: 18px 20px;\">\n<p style=\"font-size: 14.5px; color: #374151; line-height: 1.78; margin: 0;\">Korea Ever-Power provides the following documentation with food processing POM gear orders, designed to support CE marking of the machine and HACCP compliance for the food manufacturer: (1) <strong>Material safety declaration (food contact):<\/strong> a written declaration confirming the gear material (POM-H grade, manufacturer, grade designation) complies with FDA 21 CFR 177.2470 (USA), EU Regulation (EU) 10\/2011 on plastic food contact materials (Europe), and NSF Standard 51 (North America). The declaration includes the polymer manufacturer\u2019s reference document number for traceability. (2) <strong>Colour additive compliance:<\/strong> for blue-pigmented POM gears, a separate declaration confirming the pigment identity and regulatory compliance (FDA 21 CFR 178.3297 for blue pigments). (3) <strong>EN 10204 Type 2.1 declaration of conformance:<\/strong> confirming the gear is manufactured to the customer\u2019s drawing specification and the stated material. Type 2.1 (works declaration) is standard; Type 3.1 (independent inspection certificate) is available on request at a small additional charge. (4) <strong>Dimensional inspection report:<\/strong> over-pin measurements and bore diameter for each batch, confirming the key functional dimensions are within the drawing tolerance. (5) <strong>CIP compatibility statement:<\/strong> confirming the material is compatible with the specified CIP agents at the concentrations and temperatures stated by the customer. (6) <strong>X-ray and metal detectability statement:<\/strong> confirming the gear material does not contain metal particles that would give false positives in the customer\u2019s inline metal detection system (important where metal detectors and plastic gear components are both present on the same production line). Korea Ever-Power issues all six document types as a Food Contact Documentation Pack that ships with each food processing POM gear order, at no additional charge for standard food grades.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<section style=\"margin: 72px 0 0;\">\n<div style=\"text-align: center; margin-bottom: 28px;\">\n<h2 style=\"font-size: clamp(17px,2.2vw,21px); font-weight: 800; color: #1c2330; margin: 0 0 8px;\">Explore Korea Ever-Power Gear Categories<\/h2>\n<p style=\"font-size: 14px; color: #64748b; margin: 0;\">Seven precision gear product lines for food processing, dairy, beverage, meat packing, and hygienic industrial equipment worldwide.<\/p>\n<\/div>\n<div style=\"display: flex; flex-wrap: wrap; gap: 16px;\">\n<div style=\"flex: 1 1 140px; max-width: 220px; border: 1px solid #d1d9e6; border-bottom: 3px solid #2563a8; border-radius: 6px; overflow: hidden; background: #fff;\"><img decoding=\"async\" style=\"width: 100%; height: 130px; object-fit: cover; display: block;\" src=\"https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/Medical-Stainless-Spur-Gear.webp\" alt=\"stainless spur gear food\" \/><\/p>\n<div style=\"padding: 10px 14px;\">\n<p style=\"font-size: 13px; font-weight: bold; color: #1c2330; margin: 0 0 3px;\"><a style=\"color: #1c2330; text-decoration: none;\" href=\"https:\/\/gearrack.top\/ja\/product-category\/spur-gear\/\">Spur Gears<\/a><\/p>\n<p style=\"font-size: 12px; color: #64748b; margin: 0; line-height: 1.5;\">316L \u00b7 food \u00b7 washdown \u00b7 DIN 5\u20137<\/p>\n<\/div>\n<\/div>\n<div style=\"flex: 1 1 140px; max-width: 220px; border: 1px solid #d1d9e6; border-bottom: 3px solid #1c2330; border-radius: 6px; overflow: hidden; background: #fff;\"><img decoding=\"async\" style=\"width: 100%; height: 130px; object-fit: cover; display: block;\" src=\"https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/Beverage-Packing-Machinery-Helical-Gear.webp\" alt=\"beverage helical gear\" \/><\/p>\n<div style=\"padding: 10px 14px;\">\n<p style=\"font-size: 13px; font-weight: bold; color: #1c2330; margin: 0 0 3px;\"><a style=\"color: #1c2330; text-decoration: none;\" href=\"https:\/\/gearrack.top\/ja\/product-category\/helical-gear\/\">Helical Gears<\/a><\/p>\n<p style=\"font-size: 12px; color: #64748b; margin: 0; line-height: 1.5;\">Beverage \u00b7 food processing \u00b7 low noise<\/p>\n<\/div>\n<\/div>\n<div style=\"flex: 1 1 140px; max-width: 220px; border: 1px solid #d1d9e6; border-bottom: 3px solid #f97316; border-radius: 6px; overflow: hidden; background: #fff;\"><img decoding=\"async\" style=\"width: 100%; height: 130px; object-fit: cover; display: block;\" src=\"https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/Forging-Bevel-Gears.webp\" alt=\"bevel gear food\" \/><\/p>\n<div style=\"padding: 10px 14px;\">\n<p style=\"font-size: 13px; font-weight: bold; color: #1c2330; margin: 0 0 3px;\"><a style=\"color: #1c2330; text-decoration: none;\" href=\"https:\/\/gearrack.top\/ja\/product-category\/bevel-gears\/\">\u30d9\u30d9\u30eb\u30ae\u30a2<\/a><\/p>\n<p style=\"font-size: 12px; color: #64748b; margin: 0; line-height: 1.5;\">Food mixer \u00b7 angle drive \u00b7 washdown<\/p>\n<\/div>\n<\/div>\n<div style=\"flex: 1 1 140px; max-width: 220px; border: 1px solid #d1d9e6; border-bottom: 3px solid #2563a8; border-radius: 6px; overflow: hidden; background: #fff;\"><img decoding=\"async\" style=\"width: 100%; height: 130px; object-fit: cover; display: block;\" src=\"https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/Worm-and-Wheel.webp\" alt=\"worm gear food\" \/><\/p>\n<div style=\"padding: 10px 14px;\">\n<p style=\"font-size: 13px; font-weight: bold; color: #1c2330; margin: 0 0 3px;\"><a style=\"color: #1c2330; text-decoration: none;\" href=\"https:\/\/gearrack.top\/ja\/product-category\/worm-gear\/\">Worm Gears<\/a><\/p>\n<p style=\"font-size: 12px; color: #64748b; margin: 0; line-height: 1.5;\">Food self-lock \u00b7 conveyor elevator<\/p>\n<\/div>\n<\/div>\n<div style=\"flex: 1 1 140px; max-width: 220px; border: 1px solid #d1d9e6; border-bottom: 3px solid #1c2330; border-radius: 6px; overflow: hidden; background: #fff;\"><img decoding=\"async\" style=\"width: 100%; height: 130px; object-fit: cover; display: block;\" src=\"https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/Planetary-Ring-Gear.webp\" alt=\"ring gear food\" \/><\/p>\n<div style=\"padding: 10px 14px;\">\n<p style=\"font-size: 13px; font-weight: bold; color: #1c2330; margin: 0 0 3px;\"><a style=\"color: #1c2330; text-decoration: none;\" href=\"https:\/\/gearrack.top\/ja\/product-category\/ring-gear\/\">Ring Gears<\/a><\/p>\n<p style=\"font-size: 12px; color: #64748b; margin: 0; line-height: 1.5;\">Food planetary drive ring \u00b7 316L<\/p>\n<\/div>\n<\/div>\n<div style=\"flex: 1 1 140px; max-width: 220px; border: 1px solid #d1d9e6; border-bottom: 3px solid #f97316; border-radius: 6px; overflow: hidden; background: #fff;\"><img decoding=\"async\" style=\"width: 100%; height: 130px; object-fit: cover; display: block;\" src=\"https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/Internal-Planetary-Gear-Kit.webp\" alt=\"planetary gear food\" \/><\/p>\n<div style=\"padding: 10px 14px;\">\n<p style=\"font-size: 13px; font-weight: bold; color: #1c2330; margin: 0 0 3px;\"><a style=\"color: #1c2330; text-decoration: none;\" href=\"https:\/\/gearrack.top\/ja\/product-category\/planetary-gear\/\">Planetary Gears<\/a><\/p>\n<p style=\"font-size: 12px; color: #64748b; margin: 0; line-height: 1.5;\">Food servo planetary \u00b7 NSF H1 grease<\/p>\n<\/div>\n<\/div>\n<div style=\"flex: 1 1 140px; max-width: 220px; border: 1px solid #d1d9e6; border-bottom: 3px solid #475569; border-radius: 6px; overflow: hidden; background: #fff;\"><img decoding=\"async\" style=\"width: 100%; height: 130px; object-fit: cover; display: block;\" src=\"https:\/\/gearrack.top\/wp-content\/uploads\/2026\/07\/Plastic-Gears.webp\" alt=\"POM food plastic gear\" \/><\/p>\n<div style=\"padding: 10px 14px;\">\n<p style=\"font-size: 13px; font-weight: bold; color: #1c2330; margin: 0 0 3px;\"><a style=\"color: #1c2330; text-decoration: none;\" href=\"https:\/\/gearrack.top\/ja\/product-category\/plastic-gear\/\">Plastic Gears<\/a><\/p>\n<p style=\"font-size: 12px; color: #64748b; margin: 0; line-height: 1.5;\">POM \u00b7 PEEK \u00b7 FDA \u00b7 blue detectable<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<div style=\"margin: 64px 0 72px; background: #1c2330; border-radius: 6px; padding: clamp(30px,5vw,50px) clamp(24px,4vw,48px); position: relative; overflow: hidden;\">\n<div style=\"position: absolute; top: 0; right: 0; width: 220px; height: 220px; border: 44px solid rgba(37,99,168,0.15); border-radius: 50%; transform: translate(60px,-60px); pointer-events: none;\"><\/div>\n<p style=\"font-size: 9px; font-weight: 800; letter-spacing: 3px; text-transform: uppercase; color: #f97316; margin: 0 0 12px; position: relative; z-index: 1;\">GET A QUOTATION \u00b7 KOREA EVER-POWER<\/p>\n<h2 style=\"font-size: clamp(18px,2.8vw,26px); font-weight: 900; color: #fff; margin: 0 0 12px; line-height: 1.2; position: relative; z-index: 1;\">Need POM Gears for Food Processing Equipment?<\/h2>\n<p style=\"font-size: 14.5px; color: #8fa3bf; margin: 0 0 24px; max-width: 580px; line-height: 1.7; position: relative; z-index: 1;\">Korea Ever-Power manufactures food-grade POM-H and POM-C gears for all food processing applications \u2014 M1\u2013M6, machined from FDA 21 CFR 177.2470 certified rod stock or injection moulded in multi-cavity tools. Natural white or blue visually-detectable option. CIP compatibility assessment (NaOH, PAA, chlorine) for each application. Full food contact documentation pack: FDA declaration, EU 10\/2011 compliance, dimensional inspection report. Minimum 10 pieces machined, minimum 500 pieces injection moulded. ISO 9001:2015 certified.<\/p>\n<p><a style=\"display: inline-block; background: #f97316; color: #fff; padding: 14px 32px; border-radius: 3px; text-decoration: none; font-weight: 800; font-size: 14px; letter-spacing: 0.5px; text-transform: uppercase; position: relative; z-index: 1;\" href=\"https:\/\/gearrack.top\/ja\/contact\/\">Request a Quotation \u2192<\/a><\/p>\n<\/div>\n<p style=\"text-align: right;\"><em>\u7de8\u96c6\u8005: Cxm<\/em><\/p>\n<\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>GEAR APPLICATION GUIDE \u00b7 PLASTIC GEAR \u00b7 PL03 POM Gears for Food Processing Equipment: Delrin Acetal Gear Applications in Food Machinery, Conveyors and Beverage Systems Polyoxymethylene (POM) \u2014 sold under the DuPont trade name Delrin and also marketed as acetal or polyacetal \u2014 is the most widely used engineering plastic for food processing gear applications where a combination of high dimensional stability, low moisture absorption, excellent machinability, good wear resistance, and FDA-compliant composition is needed. POM gears are found in virtually every segment of the food industry: in the mixing shaft drives of commercial food processors, in the conveyor belt indexing mechanisms of meat slicing lines, in the dosing and [&hellip;]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[4566],"tags":[],"class_list":["post-2048","post","type-post","status-publish","format-standard","hentry","category-application-of-gears"],"_links":{"self":[{"href":"https:\/\/gearrack.top\/ja\/wp-json\/wp\/v2\/posts\/2048","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gearrack.top\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gearrack.top\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gearrack.top\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gearrack.top\/ja\/wp-json\/wp\/v2\/comments?post=2048"}],"version-history":[{"count":1,"href":"https:\/\/gearrack.top\/ja\/wp-json\/wp\/v2\/posts\/2048\/revisions"}],"predecessor-version":[{"id":2051,"href":"https:\/\/gearrack.top\/ja\/wp-json\/wp\/v2\/posts\/2048\/revisions\/2051"}],"wp:attachment":[{"href":"https:\/\/gearrack.top\/ja\/wp-json\/wp\/v2\/media?parent=2048"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gearrack.top\/ja\/wp-json\/wp\/v2\/categories?post=2048"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gearrack.top\/ja\/wp-json\/wp\/v2\/tags?post=2048"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}