Service 01
Injection Molds
Precision-engineered tooling for complex plastic components — from single-cavity development molds to multi-cavity production tools designed for stable long-run output.
Explore Injection Molds →Precision Molding · Engineered for Production
Injection Molds Built to Move From Drawing to Mass Production.
A single facility that engineers precision molds, runs stable injection production across 41 machines, and delivers custom IC trays — so your parts move from DFM review to serial output without switching suppliers.
Manufacturing Floor · Shenzhen, CN
Why CS Molds
A Manufacturing Base That Lets Us Say Yes to Serial Production.
Our capacity is not marketing — it's the reason customers commit multi-year programs to a single supplier and stop switching mid-project.
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41
Injection Molding Machines
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30–380T
Molding Tonnage Range
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33
Machining Equipment Units
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24H
Engineering RFQ Response
Our Services
Three Focused Business Lines. One Engineering Team.
We don't stretch across every process. We build precision molds, run injection production, and manufacture IC trays — so every project is handled by engineers who work in the same category every day.
Service 02
Plastic Injection Molding
Serial injection production across 41 machines from 30 to 380 tonnes, backed by in-line inspection and process traceability — so ramp-up and yield are predictable, not aspirational.
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Service 03
IC Tray Solutions
Dimensionally stable trays engineered for semiconductor handling — JEDEC-compliant designs plus custom tooling for the specific device geometries your line actually runs.
Explore IC Trays →Engineering Response
Engineering Around the Problems That Delay Production.
Most quality issues surface late — at first trial, during ramp-up, or after PPAP. Our DFM and mold engineering process is built to identify them earlier, so decisions are made before steel is cut.
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Dimensional instability across production runs
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Warpage and deformation on thin-wall parts
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Surface defects on cosmetic components
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Yield loss during mass production ramp-up
Case Study · Consumer Housing
Warpage Correction on a Thin-Wall Cosmetic Housing.
Problem
Molded part showed 0.6 mm warpage after ejection, exceeding the customer's assembly tolerance.
Engineering Response
Redesigned cooling channels and rebalanced gate positions after CAE flow simulation.
Result
Warpage reduced to under 0.15 mm and validated across three consecutive production batches.
Manufacturing Applications
Parts We Produce Every Day, Across Industries That Cannot Afford Rework.
Our tooling and injection lines are qualified for programs where dimensional stability, surface quality and repeatability are not negotiable — from automotive interiors to semiconductor handling trays.
Automotive
Interior & Structural Components
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Medical Devices
Diagnostic Housings & Enclosures
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Consumer Electronics
Cosmetic Enclosures & Bezels
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Semiconductor
IC Trays & Handling Solutions
View Application →Industries We Serve
Different Industries, Same Non-Negotiable Standard: Repeatability.
We adapt tooling, materials and process controls to what each industry actually audits — not to a generic checklist. Every program is scoped against the requirements the customer's own quality team will apply.
Industry Focus
Automotive Interior & Structural Parts
From door panels and bracket components to under-hood housings — automotive programs demand dimensional repeatability across long lifecycles, and we build tooling that stays in tolerance after millions of cycles.
Typical Parts
- Interior trim & brackets
- Under-hood housings
- Insert-molded connectors
Key Requirements
- Dimensional stability
- Surface class-A quality
- IATF-aligned traceability
Industry Focus
Medical Device Housings & Enclosures
Diagnostic and handheld device housings run on medical-grade resins with cleanroom-ready processing — every mold and shot is documented so the audit trail your regulatory team needs is already there.
Typical Parts
- Diagnostic enclosures
- Handheld device housings
- Cartridge components
Key Requirements
- Medical-grade resins
- Cleanroom-ready processing
- Full lot traceability
Industry Focus
Consumer Electronics Enclosures & Bezels
Cosmetic-critical enclosures live or die on surface quality — our two-shot capability and high-gloss tooling deliver ready-to-assemble parts with the finish your product needs at retail.
Typical Parts
- Cosmetic enclosures
- Bezels & button assemblies
- Two-shot overmolds
Key Requirements
- High-gloss surface finish
- Tight cosmetic tolerances
- Rapid ramp to volume
Industry Focus
Home Appliance Functional Parts
Structural covers, control housings and wear-facing components need to survive years of thermal and mechanical cycling — we tune material selection and gate strategy to the actual duty cycle, not the datasheet.
Typical Parts
- Structural covers
- Control panel housings
- Functional internal parts
Key Requirements
- Long-life durability
- Cost-optimized cycle time
- Multi-cavity efficiency
Industry Focus
Industrial Components & IC Trays
Semiconductor handling trays and industrial housings share one requirement: they cannot warp, cannot drift, and cannot introduce contamination — we build tooling and process controls around that non-negotiable.
Typical Parts
- IC handling trays
- Industrial housings
- ESD-grade components
Key Requirements
- Dimensional stability
- ESD & contamination control
- JEDEC-compliant tooling
Automotive Interior & Structural Parts
From door panels to under-hood housings — automotive programs demand dimensional repeatability across long lifecycles.
Explore Automotive Applications →
Medical Device Housings & Enclosures
Medical-grade resins with cleanroom-ready processing and full audit-ready traceability.
Explore Medical Applications →
Consumer Electronics Enclosures & Bezels
Two-shot and high-gloss tooling for cosmetic-critical enclosures.
Explore Electronics Applications →
Home Appliance Functional Parts
Structural covers and functional housings tuned for real-world duty cycles.
Explore Appliance Applications →
Industrial Components & IC Trays
Dimensional stability and contamination control for semiconductor handling and industrial programs.
Explore Industrial Applications →
Manufacturing Facility · CS Molds
About CS Molds
Built Around Manufacturing, Not Marketing.
CS Molds is a single-site manufacturer running mold engineering, injection production and IC tray tooling under one roof — so what you see in the DFM review is what runs on the machine, and the same engineers own the project from drawing to delivery.
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Mold Engineering
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Injection Production
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Global Project Support
Manufacturing Floor
Inside Our Manufacturing Floor.
The equipment we run is not marketing decoration — every group below is used daily on live customer programs, and each piece is auditable during a plant visit.
CNC & Injection Workshop
Machining
CNC · EDM · WEDM · Grinding
33 machining units covering roughing to finishing on mold cores, cavities and inserts — internal capacity that keeps critical tooling steps in-house.
Injection
Single-Color & Two-Shot Molding
41 injection machines from 30 to 380 tonnes, supporting single-color, two-shot and insert-molded production runs with matched process parameters.
Inspection
CMM · Gauges · Fixtures
In-line and offline dimensional inspection tied to each production lot, with reports formatted for direct handover to customer quality teams.
Automation
Automated & Semi-Automated Production
Robot-assisted part removal, insert loading and secondary operations — used where cycle-time and consistency benefits are measurable, not for demo value.
Engineering & Quality
Every Mold Passes Through the Same Six-Gate Discipline.
Quality is not a final inspection step — it's designed into the mold at the DFM stage and validated at every gate below, so the trial and PPAP results customers receive are predictable, not hopeful.
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DFM Review
Manufacturability and risk analysis on 2D/3D drawings before quotation.
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Mold Design
Structure, material and cooling strategy confirmed with customer sign-off.
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Manufacturing
CNC, EDM and grinding steps tracked with weekly progress reports.
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Mold Trial
First-shot validation with sample parts and short-form trial report.
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Inspection
CMM dimensional check plus surface and functional verification.
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Approval
Customer sign-off, documentation handover and release to production.
Engineering
DFM and mold design review with the customer's engineering team.
Inspection
CMM dimensional inspection tied to each production lot.
Mold Trial
First-shot trial with short-form report for customer review.
How We Work
A Project Flow Your PM Can Actually Track.
Eight defined stages, four of them customer-facing checkpoints — so your project manager always knows what's next, what's blocking, and what needs sign-off. No black-box waiting between quotation and delivery.
Customer Touchpoint
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Stage 01
RFQ Received
Drawings, materials and target volumes received and logged.
Internal
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Stage 02
Engineering Review
DFM check and manufacturability risk analysis by the engineering team.
Customer Touchpoint
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Stage 03
Quotation Issued
Detailed quote with DFM feedback, lead time and payment terms.
Customer Touchpoint
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Stage 04
Design Approval
Mold structure and process strategy signed off before steel is cut.
Internal
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Stage 05
Manufacturing
Mold manufacturing with weekly progress reporting to your PM.
Customer Touchpoint
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Stage 06
Trial & Validation
First-shot trial, sample parts and trial report shared for review.
Internal
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Stage 07
Mass Production
Serial injection with in-line inspection and lot-level traceability.
Customer Touchpoint
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Stage 08
Delivery
Packing, documentation handover and shipment on the agreed timeline.
Engineering Insights
Notes From the Manufacturing Floor, Not the Marketing Desk.
Written by our engineering team, based on programs we've actually run. Direct DFM, tooling and process advice you can apply to your own project — not generic content-marketing filler.
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FAQ
Frequently Asked Questions.
Direct answers to the questions procurement, engineering and quality teams ask us most often — before, during and after an RFQ.
Question Not Listed?
Send it directly to our engineering team — you'll get a technical response within one working day, not a sales reply.
Ask Engineering →
3D file (STEP or IGES), 2D drawing with tolerances, target plastic material, expected annual volume, and target lead time. With those five inputs our engineering team returns a DFM review and detailed quotation within 24 hours — not a generic price bracket.
Yes. We handle full transfers from other suppliers — mold inspection on arrival, condition report, refurbishment or modification if required, then trial and production ramp-up. Most transfers reach first-shot within three to four weeks of mold receipt.
Common commodity and engineering resins including ABS, PC, PC/ABS, PP, PA6, PA66, POM, PBT, PMMA, PPE and PPS. Medical-grade, ESD-grade and glass-filled variants are also supported. If your program uses a specific compound, we validate processability on trial before quoting production.
Every project starts with a DFM review. Our engineering team analyzes wall-thickness distribution, draft angles, gate positions, ejection risks and cooling strategy against the target material and volume — and returns feedback in writing before quotation is finalized. No mold is cut without this step.
Yes. Our injection floor covers 30 to 380 tonnes across 41 machines, which lets us match cavity strategy to program size — single-cavity development molds for pilot runs, and multi-cavity production tooling for stable serial output. Volume tier is confirmed during DFM.
In-line first-piece inspection, hourly SPC sampling on critical dimensions, full CMM measurement per lot, and lot-level traceability tying each shipment back to machine, mold cavity, material batch and shift — so any downstream issue can be traced within one working day.
Simple single-cavity molds typically take 25 to 35 days from design approval to first trial; complex multi-cavity or 2K molds range 45 to 60 days. Actual lead time is confirmed against your specific geometry, cavity count and steel selection during quotation — not quoted from a chart.
Start Your Project
Have a Project to Discuss?
Send us your drawings and requirements. Our engineering team will review your project and respond with DFM feedback, lead time and next steps within one working day — not a generic sales reply.
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3D file · STEP, IGES or Parasolid
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2D drawing with dimensions and tolerances
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Material requirement or preferred grade
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Annual volume and target timing
Trusted by Global Manufacturing Teams Across Six Industries.