Tube in POM C FG 3000 mm black

POM C FG is the food grade version of POM C, developed and certified for direct food contact under both the EU and the FDA rules. In tube format it is used mainly when the finished part has a through hole and you want to avoid boring out a solid round rod. The tube blank saves chip volume, shortens the turning time and gives a more even structure in the wall cross section than a bored out round rod blank.

The material has a density of 1.41 g/cm³, handles 105 degrees continuously and works down to -40 degrees. Water absorption is 0.8 percent and the flammability rating HB. The coefficient of friction against stainless steel is low, so sliding pairs work without lubrication. That is valuable in food production where oil otherwise risks contaminating the product.

POM C FG is the same tough acetal copolymer as standard POM C. It is less sensitive to stress cracking than POM H and holds tolerances over time, which shows both in milled parts and in components exposed to cyclic loads.

Common applications for POM C FG tubes:
- Bearing sleeves and bushings in belt conveyors for food
- Rotor sleeves and support liners in pumps for liquid foods and beverages
- Spacer sleeves and guide arms in packaging machines
- Sealing liners in capping stations
- Spool sleeves in pneumatic dosing units

The standard color is natural (slightly yellowish white). Blue is an alternative when visual detection of material debris is part of the HACCP plan, often in metal detector lines where a blue fragment shows up both in the camera and at manual inspection.

Chemically POM C FG handles the normal cleaning agents of the food industry: alkaline foam washes, mildly chlorinated disinfectants and hot process water. Strong acids, concentrated chlorine solutions and powerful oxidizing agents break the material down, so follow the supplier's recommended cleaning cycle. Short bursts of hot steam below 120 degrees the material handles.

Machining is uncomplicated. Sharp carbide inserts, good chip ejection and moderate cooling give fine surfaces and tolerances straight from turning. The chip tends to run long; break it with a chip breaker or a pulsing feed. Mark the workshop's FG offcuts separately from standard POM so that food grade parts are always produced from the right material stream.

We carry tubes in a wide span of outer and inner diameter and cut to size. Leave a couple of millimeters extra on length for facing and finishing. For larger series we can prepare chamfered ends or deliver cut to tolerance directly.

This tube is 3000 mm long and is supplied in black. The copolymer is approved for direct food contact, so the tube suits sleeves and liners in food machinery. The hollow shape saves machining when a part is going to be tubular anyway.

Need a declaration of compliance for food contact, a material data sheet or help comparing POM C FG with an alternative plastic for a particular process? Get in touch and we will go through the requirements together.