Custom Delrin Block

Plastic POM Block

POM Blocks Machined and Molded to Your Drawing

Delrin blocks — also known as POM or Acetal — are high-strength, low-friction engineering plastics known for exceptional dimensional stability and precision machinability. They’re a common choice where tight tolerances and consistent performance under load matter more than raw impact strength.

At Flexiparts, we don’t stock fixed-size POM blocks. Every block is CNC machined or injection molded to your drawing, specification, or sample — from a single prototype to full production volumes — with the dimensions, features, and tolerances your application requires.

Flexible Customization for Your Engineering Needs

We build custom POM blocks around your engineering specifications — avoiding the limits of off-the-shelf catalog sizes.

  • Custom Dimensions & Shapes: Cut and machined strictly to your requested thickness, width, and geometric profiles.
  • Precision Threading & Hole Patterns: Milled and drilled precisely to match your assembly mating points.
  • Prototypes to Scaled Orders: No rigid minimums — start with a single functional sample, then transition into scaled production seamlessly.
  • Process Selection: Fast CNC machining for low volumes; cost-effective injection tooling for mass component supply.
  • Quality & Surface Finishing: Clean edges, controlled surface roughness, and thorough dimensional inspection on every order.

Applications About Custom POM Blocks

POM blocks we’ve produced are used across precision and load-bearing applications, including:

  • Precision Gears & Bearings: POM’s low friction and dimensional stability make it a common choice for gear blanks and bearing components.
  • Bushings & Wear Components: Self-lubricating properties support long-term performance in sliding applications.
  • Structural & Mounting Components: Rigid, dimensionally stable blocks for jigs, fixtures, and precision assemblies.
  • Food & Medical Equipment Parts: Food-grade POM grades available for equipment requiring hygiene compliance.

How To Work with Us

The key to great custom parts is collaboration. As a custom molding manufacturer, our engineers will stay connected with you throughout the process, and deliver products that meet your expectations.

  1. Send us your 2D/3D files or product concept, for an accurate quote, please send us materials, order quantity, and surface requirements.
  2. We review your design and send you a clear cost within 24 hours.
  3. Our tooling team builds the mold to your specifications, then send you T1 samples for confirmation.
  4. Once the sample is approved, we run full production under strict quality control
  5. Your finished parts are packaged securely and shipped to your location on time.

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Large Injection Molding Machine

Need custom rubber, plastic, or polyurethane parts? FlexiParts offers prototyping and on-demand, low to high-volume production of high-quality, durable components. Whatever your needs, we deliver reliable custom parts on time and within budget. Start your project with us today!