Custom Plastic Gibs for Machinery and Automation
PlasticCNCPro machines plastic gibs to drawing specifications for equipment builders and OEMs. These linear guides reduce friction, absorb wear, and maintain alignment in slides, carriages, and linear motion assemblies.
- Critical tolerance
- ±0.05 mm
- Tight tolerance
- ±0.02 mm
- Max length
- 1200 mm
- Batch range
- 5–500 pcs
What Plastic Gibs Are and Where They Fit
Plastic gibs serve as adjustable or fixed wear strips that take sliding contact in machine ways, dovetail slides, and linear bearings. They replace metal gibs where lubrication is limited, corrosion is a concern, or noise reduction matters.
-
Press slides
Low-friction wear surfaces on reciprocating slides.
-
Conveyor tracks
Wear strips that protect rails and reduce noise.
-
Positioning stages
Alignment control in dovetail and linear ways.
CNC Processes Used for Plastic Gibs
We start with extruded or cast plastic stock and remove material through milling, turning, and secondary operations. Slots, T-nuts, mounting holes, and angled faces are cut in one or two setups. Threaded inserts or captive hardware can be added when the design requires it. Each batch receives in-process checks for flatness, parallelism, and slot width.
Step 01
Stock preparation
Extruded or cast plastic blanks selected and squared for machining.
Step 02
Milling and turning
Slots, angled faces, and T-nut profiles cut in one or two setups.
Step 03
Secondary operations
Mounting holes, threaded inserts, and captive hardware added on request.
Step 04
In-process inspection
Flatness, parallelism, and slot width verified on every batch.
Materials We Run for Gib Applications
We review each application for PV limits, temperature range, and required surface finish before recommending stock.
POM / Acetal
Low moisture absorption and good dimensional stability for precision ways.
UHMW-PE
High-load, low-speed sliding with minimal abrasion on contact faces.
Nylon 6 & 66
Toughness for impact zones and shock-loaded slide interfaces.
PTFE & PVDF
Selected for chemical exposure and aggressive media environments.
Glass / carbon reinforced
Increased stiffness to hold deflection below 0.05 mm under load.
Application review
PV limits, temperature range, and finish requirements checked before quoting.
Tolerances and Surface Requirements
| Critical dimensions | ±0.05 mm |
|---|---|
| Non-critical features | ±0.1 mm |
| Locating faces (tight) | ±0.02 mm |
| Sliding face roughness | Ra 1.6 µm or better |
Tighter work reaches ±0.02 mm on locating faces when the material and geometry allow. Parts can be supplied with ground or polished contact surfaces when the drawing specifies.
Part Sizes and Production Volumes
Length range: from 20 mm wear pads up to 1200 mm machine ways.
Wall thickness: 3 mm for light-duty parts, up to 50 mm for heavy slides.
Order volume: five-piece prototype sets through 500-piece repeat runs.
Tooling: limited to standard cutters, so setup costs stay low even for one-off designs.
Design and Material Selection Support
Send a 2D drawing or 3D model with the intended load, speed, and environment. Feedback arrives within one business day for most inquiries.
Submit Your DrawingThin-section review
We flag thin sections that may distort during machining or under load.
Material swaps
Suggestions when the original grade shows creep or wear concerns.
Geometry advice
Recommended radii and chamfers that reduce stress concentrations.
Fast turnaround
Engineering feedback returned within one business day for most inquiries.
Quality and Documentation
Inspection reports
First-article inspection reports and dimensional data on key features ship with every order.
Material certificates
Certificates supplied for the polymer grades used in your gibs.
Export packaging
Foam separators and desiccant protect moisture-sensitive polymers. Lot numbers are recorded for traceability on production orders.
Request a Quotation
Email drawings, material callouts, quantity, and any special packaging or marking instructions. Include the project timeline and target price range if available. We respond with a firm quotation and lead time based on current material stock and machine availability.
- info@plasticcncpro.com
- Address for samples or correspondence
- 29 Fuxing Road, Dongguan City, Guangdong Province, China