PEEK Injection Molding
High-temperature molding for tight-tolerance PEEK components.
- 400°C+ melt processing with controlled mold temperatures
- CTQ-focused tolerances typically ±0.02–0.05 mm (part-dependent)
- DFM feedback within 24 hours + in-house tooling support
- Inspection reports and material certs available on request
PEEK Injection Molding Service
We provide PEEK injection molding for functional parts that require heat resistance, chemical stability, and tight dimensional control.
- Tooling and DFM support to stabilize flow, venting, and cooling on PEEK builds
- Dimensional planning for fit-critical features, with inspection requirements aligned to your drawing
PEEK Injection Molding Capabilities
| Capabilities | Specification |
|---|---|
|
Press Tonnage Range |
50 – 1,300 tons
|
|
Supported PEEK Grades |
Unfilled PEEK; GF30 PEEK; CF30 PEEK; conductive PEEK; medical-grade PEEK (project-dependent) |
|
Processing Temperature |
360 – 420°C |
|
Mold Temperature Control |
Typically 160 – 200°C, depending on geometry and crystallinity requirements |
|
Material Handling & Preparation |
Material drying/handling requirements confirmed by resin grade and supplier guidance |
|
Dimensional Control (General) |
Typically ±0.05 – 0.10 mm, depending on geometry, grade, and feature type |
|
Dimensional Control (CTQ Features) |
CTQ features typically planned within ±0.02 – 0.03 mm, subject to tooling design and process stability |
|
Thin-Wall Capability |
Thin-wall sections down to ~0.8 – 1.0 mm, depending on geometry and PEEK formulation |
|
Maximum Part Size |
Up to ~600 mm, depending on part geometry and tooling strategy |
|
Tooling Strategy |
Gate/runner selection, venting, and cooling design optimized for PEEK flow and thermal behavior |
|
Mold Materials |
H13, S136, and other high-grade mold steels selected for high-temperature and fiber-reinforced PEEK applications |
|
Wear Management (GF/CF Grades) |
Tooling material selection and design approach aligned to abrasive fiber-filled compounds |
|
Surface Finish Options |
Polished, matte, or semi-gloss; texture options may be limited by fiber content and functional requirements |
|
Secondary Operations |
Laser marking, bead blasting, and precision secondary machining available when required |
|
Inspection & Reports |
CTQ inspection planning; dimensional reports available; CMM measurement supported where applicable |
|
Typical Lead Time |
Prototype tooling and T1 samples: 3–5 weeks; production runs: 2–4 weeks, depending on part complexity, quantity, and inspection/documentation requirements. |
Why Choose Kemal for PEEK Injection Molding
Controlled High-Temperature Processing
PEEK performance depends on process stability, not just heat. We run PEEK within a controlled molding window—managing melt condition, mold temperature control, venting, and cooling—to reduce degradation risk and keep fill behavior consistent from samples through production.
Tooling Built for PEEK and Fiber-Filled Grades
Tooling strategy is engineered around PEEK’s flow and thermal behavior, with steel selection and design features matched to unfilled, GF, and CF compounds. Gate/runner layout, venting, and cooling are planned to minimize common defects such as burn marks, warpage, and short shots.
Crystallinity and Shrinkage Management
Dimensional stability in PEEK is closely tied to crystallinity and shrink behavior. We manage mold temperature windows and cooling strategy to improve repeatability on fit-critical parts, especially where geometry, thin walls, or reinforcement can increase warpage risk.
CTQ-Driven Dimensional Control
For fit-critical features, we align process planning and inspection requirements to your drawing and CTQ notes. Tolerance targets and measurement methods are confirmed during quoting and sampling to support stable assembly performance and batch-to-batch consistency.
Inspection Reports and Documentation Support
We support project-specific documentation needs, including dimensional inspection reports and material certification when required. Reporting scope is aligned to your acceptance criteria to support regulated, high-reliability, or supplier-audit programs.
Prototype-to-Production Program Support
We support prototype builds, pilot runs, and production programs without changing suppliers midstream. Early feedback, tooling decisions, and quality requirements are aligned up front so scaling volume does not introduce avoidable rework or process drift.
Typical PEEK Parts We Mold
High-Temperature Housings
PEEK housings supported with DFM-led wall/rib planning plus gate/vent/cooling design to reduce sink, warpage, and heat-related dimensional drift.
Bushings & Bearings
Wear parts produced with geometry- and grade-specific tooling strategy and CTQ measurement planning to maintain repeatable fit on sliding or rotating interfaces.
Gears & Wear Components
Molded wear components supported with fiber-grade wear management, controlled shrink behavior, and inspection planning for tooth/mesh and contact surfaces.
Sealing Rings & Backup Rings
Seal geometries supported with parting-line control, flash-risk management, and repeatable groove/OD sizing aligned to your sealing and assembly requirements.
Precision Sleeves & Inserts
Fit-critical sleeves and inserts planned around CTQ datums and measurement methods, with tooling decisions made to maintain concentricity and consistent assembly fit.
Electrical Insulators & Connectors
Insulating parts supported with material-grade selection, stable molding conditions, and inspection requirements aligned to dielectric function and connector fit.
Supporting Services for PEEK Injection Molded Parts
Early-stage DFM analysis focused on PEEK-specific risks, including wall thickness balance, gate location, venting, and thermal behavior. Potential manufacturability issues are identified before tooling to reduce iteration and rework.
Custom tooling for PEEK injection molding, including mold steel selection, cooling layout, and runner design optimized for high melt temperatures and fiber-filled grades. Tooling decisions are made to balance durability, process stability, and part consistency.
Post-molding operations for PEEK parts, including bead blasting, laser marking, and precision secondary machining when required. Surface options are selected based on functional and application requirements rather than cosmetic appearance.
Dimensional inspection and documentation based on CTQ features, including CMM measurement and material certification. Quality requirements are confirmed during quoting to support regulated and high-reliability applications.
Optional sub-assembly, part protection, and controlled packaging for PEEK components. Handling and delivery methods are selected to preserve part integrity, traceability, and dimensional stability through shipment.
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