+86-135-24378565

Custom thermoplastic and thermoset components manufactured to tight tolerances for industrial, medical, and electronic applications. Built strictly to your 3D CAD data and 2D engineering drawings.

 

Overview

Core Capability:

Custom plastic injection molding, insert molding, and overmolding.

 

Tolerances:

Standard +/- 0.05 mm, precision capability down to +/- 0.015 mm depending on geometry and material.

Volume Range:

Rapid prototyping (100 to 500 parts via aluminum/soft steel tooling) to high-volume production (500,000+ parts via multi-cavity hardened steel molds).

Equipment Baseline:

Fully electric and servo-hydraulic injection molding machines ranging from 50T to 550T clamping force.

 

 
 
Product Range & Typical Geometries

We mold a broad spectrum of functional components tailored to specific mechanical and environmental requirements:

Housings & Enclosures:

 

Electronic device shells, sensor bodies, industrial control boxes with integrated snap-fits and threaded inserts.

01

Mechanical Drives & Gears:

 

Spur gears, worm gears, cams, and low-friction bushings requiring high wear resistance.

02

Connectors & Housings:

 

High-pin-count electronic connectors, terminal blocks, and insulating spacers with thin-wall sections (< 0.5 mm).

03

Fluid & Pneumatic Components:

Valve bodies, manifolds, fittings, and impellers requiring leak-free sealing faces and chemical compatibility.

04

Overmolded & Insert Parts:

 

Metal-plastic hybrid components (brass inserts, stamped metal terminals) and soft-touch grips (TPE/TPU over rigid substrates).

05

 

Manufacturing Capabilities & Engineering Support

 

Manufacturing performance relies on process control, thermal management, and precise machine parameters:

 
01
 

DFM & Mold Flow Analysis:

Every project undergoes automated and engineer-led DFM review before tooling begins. We analyze gate locations, weld lines, sink marks, draft angles, and volumetric shrinkage to prevent shop-floor defects.

 
02
 

Tooling Construction:

In-house tool room equipped with CNC machining, Wire EDM, Sink EDM, and high-speed milling. Tool steel grades include P20, H13, NAK80, and S136 based on expected life cycles and abrasive fillers.

 
03
 

Process Control:

Closed-loop injection molding machines with real-time monitoring of cavity pressure, melt temperature, injection speed, and cooling cycles to ensure batch-to-batch repeatability.

 
04
 

Secondary Operations:

Ultrasonic welding, laser marking, pad printing, heat staking, and custom sub-assembly.

Precision Plastic Retaining Components

 

Material Selection Guide

Material performance dictates part longevity. We process standard engineering resins and high-performance polymers:

 

Material Family

Common Grades

Key Characteristics

Typical Applications

Commodity Plastics

ABS, PP, PE, PS

Cost-effective, easy to process, balanced impact strength.

Consumer goods housing, packaging, basic containers.

Engineering Plastics

PC, POM (Acetal), PA6/PA66, PMMA

High rigidity, low friction, wear-resistant, good dimensional stability.

Gears, bearings, structural clips, transparent lenses.

High-Performance Polymers

PEEK, PPS, PEI (Ultem), PSU

High continuous use temperature, chemical resistance, flame retardant.

Aerospace, medical sterilization parts, under-hood automotive.

Elastomers

TPU, TPE, Silicone

Flexible, soft-touch ergonomics, vibration dampening.

Gaskets, seals, overmolded grips, protective bumpers.

 

Note: Filled variants (Glass Fiber 10% to 30%, Carbon Fiber, Mineral-filled) available upon request to increase tensile strength and reduce thermal expansion.

 

OEM / ODM Partnership

Build-to-Print (OEM):

Production executed strictly to your finalized STEP/IGES files and 2D drawings featuring GD&T callouts, material specifications, and surface finish requirements (SPI A2 to D3).

 

Engineering Collaboration (ODM):

Support from initial concept stage through prototyping, material selection, mold design optimization, and mass production scaling.

 

IP Protection:

Strict Non-Disclosure Agreements (NDAs) enforced across all engineering and manufacturing stages.

 

 

Quality Control & Inspection
 
 

Quality is verified through measurable physical and dimensional data rather than visual inspection alone:

 

Incoming Material:

Verification of raw resin pellets via Melt Flow Index (MFI) testing and Certificate of Analysis (CoA) review from primary suppliers (Sabic, DuPont, Covestro, BASF).

 
 

In-Process Inspection:

First Article Inspection (FAI) reports generated for initial shot approval. Regular dimensional audits during production runs based on AQL sampling standards.

 
 

Metrology Equipment:

Coordinate Measuring Machines (CMM), optical video measuring systems, digital height gauges, and tensile strength testers.

 
 

Traceability:

Lot traceability maintained from raw material batch number through molding shift logs to final shipment packaging.

 

 

 

Frequently Asked Questions

 

 

Q: What file formats do you accept for quotation?

A: 3D CAD formats (STEP, IGES, XT) along with 2D PDF drawings specifying tolerances, thread specs, material grades, and surface finishes.

Q: What is the typical lead time for tooling and samples?

A: Tooling fabrication typically takes 3 to 5 weeks depending on geometry complexity and mold size. T1 samples are delivered within 3 to 7 days after tool trials for customer evaluation and dimensional sign-off.

Q: What is your standard mold life warranty?

A: Tooling maintenance and guaranteed production cycles (ranging from 300,000 to over 1,000,000 shots depending on steel selection and class) are outlined in our tooling contract. Molds remain the property of the client.

Q: How do you handle export packaging for international shipping?

A: Parts are packed in anti-static bags, vacuum-sealed moisture barrier bags with desiccant when required, and layered in heavy-duty double-wall corrugated cartons or custom export wooden crates to prevent transit damage.

 

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Request for Quotation

Engineering Resource Download: Need alignment before submitting your files? Download our Standard DFM Checklist (PDF) to verify your draft angles, wall thickness transitions, and gate placement guidelines.
To receive a formal quotation within 24 hours, please provide the following project details via email or our RFQ portal:
3D CAD Data & 2D Drawing (with tolerance stack-ups and critical dimensions).
Material Specification (trade name or exact resin grade).
Estimated Annual Volume / Batch Quantity.
Target Delivery Timeline (tooling schedule and production milestones).
Secondary Requirements (insert molding, texture, painting, ultrasonic welding, specific testing/certifications).

With abundant experience, we are one of the most professional precision injection molded parts manufacturers and suppliers in China. Welcome to buy customized precision injection molded parts at competitive price from our factory. If you have any enquiry about pricelist, please feel free to email us.

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