Find the part by what it does
Custom machined
plastic parts
We CNC mill and turn custom parts in engineered plastics, from a single replacement to recurring runs. Start from a drawing, a specification or the worn part itself.
- Sprockets A toothed wheel that engages chain. Conveyor
- UHMW guides Fixed sliding guidance for chain or product. Conveyor
- Rollers Rotating support or contact. Conveyor
- Scrapers A contact edge that removes carryback or buildup. Conveyor
- Sheaves A smooth grooved wheel for belt or rope duty. Conveyor
- Star wheels Pocketed container transfer. Container handling
- Timing gears A toothed pulley for a synchronous belt, not a chain sprocket. Container handling
- Timing wheels Pitch-setting container handoff. Container handling
- Turn blocks Passive guidance through a conveyor corner. Container handling
- Dividers Lane separation in conveyor or packaging equipment. Container handling
- Baffles Wet-tank or dry-chute flow deflection. Container handling
- Bearing blocks A mounted shaft-support block, solid or split, including split pillow blocks and upper split bearings. Bearings & rings
- Bushings A retained sleeve in an installed bore. Bearings & rings
- Cylinder sleeves A sleeve intended to reline a bore. Bearings & rings
- Wear rings Sacrificial guidance or running-clearance control. Bearings & rings
- Retainer rings Machined holding or anti-extrusion duty. Bearings & rings
- Insulating rings Electrical or thermal isolation at an annular joint or bore. Bearings & rings
- Spacers Plain-bore gap or stack-length control. Bearings & rings
- Washers Distributes fastener load or protects the mating face. Bearings & rings
- Manifolds A stationary body that routes fluid through passages and ports. Fluid & sealing
- PTFE valve seats The interface where a moving valve element seals. Fluid & sealing
- Bellows A flexing boundary that accommodates motion. Fluid & sealing
- Gaskets A flat static seal between fixed faces. Fluid & sealing
- Pistons A member whose seal travels with it. Fluid & sealing
- Plungers A moving member that passes through stationary packing. Fluid & sealing
- Spools A valve element whose lands and grooves change flow paths. Fluid & sealing
- Caps A protective, masking or other non-retaining cover. Fluid & sealing
- Sealing caps A closure intended to retain fluid or pressure. Fluid & sealing
- Actuator components Machined components inside a powered actuator. Fluid & sealing
- Brackets A multi-face mounting or positioning member. Mounting
- Housings Carries or protects a bearing, sensor or subassembly. Mounting
- Insulators Interrupts an unwanted electrical or heat path. Mounting
- Standoffs A mounting column that fixes installed height. Mounting
- Bumpers A rigid stop or contact pad. Mounting
- Duct bank spacers Holds underground conduit in its layout through the pour. Mounting
- Clear plastic barriers Clear panels, shields and guards, cut to size. Mounting
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Only have the old part?
Worn, broken, obsolete or undocumented parts can start a replacement review without a drawing.
What we make
CNC machined plastic parts for industrial equipment
CDS Plastics CNC mills and turns custom plastic parts for conveyors, packaging lines, fluid handling and other industrial equipment. We machine replacements for worn, broken or obsolete components, and new parts to your drawing, from a single piece to recurring production runs.
The parts below are grouped by what they do in the machine: move chain and product, handle containers, support shafts, seal fluid, or mount and isolate. If you don’t see your part, describe it and we’ll identify it with you.
Conveyor and chain wear
Parts that engage chain, guide product, support rotation or clean a belt.
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Sprockets
A toothed wheel that engages chain.
-
UHMW guides
Fixed sliding guidance for chain or product.
-
Rollers
Rotating support or contact.
-
Scrapers
A contact edge that removes carryback or buildup.
-
Sheaves
A smooth grooved wheel for belt or rope duty.
- Describe the part
Not listed here?
Describe what it does and where it sits. We’ll identify it with you.
Container handling and change parts
Parts that transfer, space, turn and separate containers on packaging lines.
-
Star wheels
Pocketed container transfer.
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Timing gears
A toothed pulley for a synchronous belt, not a chain sprocket.
-
Timing wheels
Pitch-setting container handoff.
-
Turn blocks
Passive guidance through a conveyor corner.
-
Dividers
Lane separation in conveyor or packaging equipment.
-
Baffles
Wet-tank or dry-chute flow deflection.
- Describe the part
Not listed here?
Describe what it does and where it sits. We’ll identify it with you.
Bearings, bushings and rings
Parts that support shafts, line bores, control clearance or set spacing.
-
Bearing blocks
A mounted shaft-support block, solid or split, including split pillow blocks and upper split bearings.
-
Bushings
A retained sleeve in an installed bore.
-
Cylinder sleeves
A sleeve intended to reline a bore.
-
Wear rings
Sacrificial guidance or running-clearance control.
-
Retainer rings
Machined holding or anti-extrusion duty.
-
Insulating rings
Electrical or thermal isolation at an annular joint or bore.
-
Spacers
Plain-bore gap or stack-length control.
-
Washers
Distributes fastener load or protects the mating face.
- Describe the part
Not listed here?
Describe what it does and where it sits. We’ll identify it with you.
Fluid path and sealing
Parts that route fluid, seal faces, move through packing or cover openings.
-
Manifolds
A stationary body that routes fluid through passages and ports.
-
PTFE valve seats
The interface where a moving valve element seals.
-
Bellows
A flexing boundary that accommodates motion.
-
Gaskets
A flat static seal between fixed faces.
-
Pistons
A member whose seal travels with it.
-
Plungers
A moving member that passes through stationary packing.
-
Spools
A valve element whose lands and grooves change flow paths.
-
Caps
A protective, masking or other non-retaining cover.
-
Sealing caps
A closure intended to retain fluid or pressure.
-
Actuator components
Machined components inside a powered actuator.
- Describe the part
Not listed here?
Describe what it does and where it sits. We’ll identify it with you.
Mounting, structure and electrical
Parts that mount, house, isolate, set height or stop motion.
-
Brackets
A multi-face mounting or positioning member.
-
Housings
Carries or protects a bearing, sensor or subassembly.
-
Insulators
Interrupts an unwanted electrical or heat path.
-
Standoffs
A mounting column that fixes installed height.
-
Bumpers
A rigid stop or contact pad.
-
Duct bank spacers
Holds underground conduit in its layout through the pour.
-
Clear plastic barriers
Clear panels, shields and guards, cut to size.
- Describe the part
Not listed here?
Describe what it does and where it sits. We’ll identify it with you.
Know the problem, not the part?
Find a replacement part by symptom
Pick the closest symptom to see which group to look in. It points you to the right parts to review; it isn’t a diagnosis.
Look in group 01
Conveyor and chain wear
Look in group 02
Container handling and change parts
Look in group 03
Bearings, bushings and rings
Look in group 04
Fluid path and sealing
Look in group 05
Mounting, structure and electrical
Replacement and no-drawing work
The worn part can be
the starting point
A worn or repaired part may no longer show its original geometry. We measure it, account for the wear, and confirm the details with you before machining the new one.
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Send the sample or drawing
A physical part, old print, sketch or CAD file. Whatever exists.
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We measure it
We measure the part and find the worn, damaged or repaired areas.
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We confirm the details
We ask about anything unclear, such as the mating part or the equipment it runs in.
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You get a quote
Price and timing for your replacement.
Part specifications and CAD files kept on file for future orders.
Material
Choosing a plastic for your part
If a grade is specified, tell us. If not, describe how the part runs and we’ll suggest suitable plastics for it.
Compare materialsWhat helps us suggest a plastic
- Mating components
- What it touches, runs against or fits into
- Load and motion
- Static, sliding, rotating or reciprocating
- Temperature
- Operating range and any heat cycles
- Chemicals and cleaning
- Process media and washdown
- Wear and moisture
- Abrasion, impact and wet service
- Electrical or thermal
- Insulation or heat-path needs
- Your regulatory or documentation requirements
- Detectability and compliance depend on the exact grade and part, so tell us what your line requires
Buyer questions
Custom plastic parts FAQs
Start with what it contacts, moves, seals, supports or retains, plus the equipment and the problem you see. Use the five groups to get close, or contact us and we’ll identify it with you.
Yes. A physical sample can start the quote. We measure it, account for the wear, and ask about anything else we need, such as the equipment it runs in.
Yes. From a single replacement to recurring runs.
If your drawing or equipment specifies a grade, tell us. If not, describe how the part runs (load, motion, temperature, chemicals and wear) and we’ll suggest suitable plastics for it.
That depends on the specific part and exact grade. Tell us what your line requires and we’ll review it.
We hold ±0.002" to ±0.005" on critical dimensions, depending on the plastic. We review your drawing and confirm the critical dimensions with your quote.
No. We machine parts to your drawing, specification or sample. Design and engineering decisions stay with you or your equipment maker.
Engineered plastics are the core of the shop, including UHMW, acetal, nylon, PTFE and PEEK, with aluminum, brass and bronze when the part calls for it.
Yes. Projects range from a single replacement to recurring production runs, and part specifications are kept for future orders.
Standard quote
Ready to send the details?
Upload drawings, CAD files or photos with your request.