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Custom injection-moulded engineering plastic parts produced in series
TOOLING · ENGINEERING PLASTICS · PEEK · INSERT / OVER-MOLD · ISO 9001

Custom Plastic Injection Molding
Precision Tooling & Engineering-Plastic Parts in Series

ISO 9001 certified injection molding: from mould-flow and DFM tooling design to first article and repeat production of custom plastic parts in ABS, PC, PA (nylon), POM, PBT, PMMA, PP, PEEK, PPS and PEI. We offer insert molding, over-molding, cosmetic finishes and assembly. Consistent part quality for medical, electronics, automotive and industrial buyers — DDP shipping to the USA, Germany, France, Italy and across Europe, quote in 24 hours.

DFM / Mould Flow
Tooling Design
PEEK / PPS / PEI
High-Grade Polymers
±0.05 mm
Moulded Tolerance
24 h
Quote Response
OVERVIEW

Engineering-Led Injection Molding from Tool to Series Parts

Moulded-part quality is decided at the tool and gate. Our engineering team reviews wall thickness, draft, gating, knit lines and shrinkage before cutting steel, builds precision single- and multi-cavity moulds, and then runs stable, repeatable production — whether you need a pilot batch or high-volume parts.

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Mould Design & DFM

Mould-flow and design-for-manufacturing review of wall thickness, ribs, draft, gating, ejector layout and shrinkage, so the tool produces dimensionally stable parts first time.

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Precision Mould Making

Single- and multi-cavity injection moulds in P20/H13/S136 steel, including hot-runner and unscrewing tools, built in-house with tight cavity and core accuracy.

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High-Grade PEEK / PPS / PEI

Temperature-controlled molding of high-performance PEEK, PPS, PEI (Ultem) and PAI for medical, semiconductor and high-heat applications demanding drying and process control.

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Insert & Over-Molding

Metal inserts and bushings moulded in, soft TPE/TPU over-moulded onto hard substrates, and multi-material assemblies for grips, seals and connectors.

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Cosmetic & Textured Finishes

SPI polish, VDI/MTM textures, matte and gloss surfaces, painting, pad printing, laser marking and silk screening, with controlled knit-line and flash quality.

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DDP to USA & Europe

Material certificates, careful packaging and worldwide DHL/FedEx/UPS, air or sea freight. DDP to the EU clears customs and duty for door-to-door delivery.

MATERIALS

Polymers We Injection Mould

We process commodity and high-performance engineering polymers, with grade selection and filler (glass-fibre, carbon-fibre, flame-retardant) advice during DFM.

ABS / ABS+PC

Good impact strength and cosmetic finish for housings, covers and consumer/electronics parts; ABS-PC blends add toughness.

PC (Polycarbonate)

Clear, tough and impact-resistant for lenses, covers, safety and electronic components requiring transparency or high impact.

PA6 / PA66 Nylon

Strong, wear-resistant and often glass-filled for gears, brackets, clips and load-bearing mechanical components.

POM / Acetal (Delrin)

Dimensionally stable, low-friction and self-lubricating for gears, bushings, sliders and precision moving parts.

PBT / PP / PMMA

PBT for electrical connectors, PP for lightweight living hinges and PMMA (acrylic) for optical and clear cosmetic parts.

PEEK / PPS / PEI

High-temperature, chemically resistant and strong for medical, semiconductor, aerospace and demanding industrial applications.

TPE / TPU / Silicone

Soft-touch, flexible and sealing materials for grips, gaskets, seals and over-moulded components.

Filled / FR Grades

Glass-fibre, carbon-fibre, mineral-filled, flame-retardant (UL94) and medical-grade polymers quoted on request.

REPRESENTATIVE PARTS

Injection-Moulded Parts & Moulds

Every component is made-to-print / OEM. A selection of representative moulded engineering-plastic parts and the tooling behind them.

Custom injection-moulded plastic parts produced to order

Custom Moulded Parts

Customer resin & colour
Injection-moulded engineering plastic components

Engineering-Plastic Parts

Glass-filled / precision
Injection-moulded PEEK high-temperature components

PEEK Moulded Parts

High-temperature polymer
Injection-moulded PPS chemical-resistant components

PPS Moulded Parts

Chemical & heat resistant
Injection-moulded plastic electronic enclosure

Plastic Housings & Enclosures

Cosmetic finish
Precision multi-cavity injection mould tool

Precision Injection Moulds

P20/H13/S136 steel
PEEK injection-moulded medical component

Medical PEEK Parts

Medical-grade polymer
Machined and moulded PEEK precision parts

PEEK Precision Parts

High-performance
PAI Torlon high-performance polymer components

PAI / Torlon Parts

Extreme-duty polymer

Need a different polymer, texture, colour or annual volume? Send STEP, STP, IGS, DWG or PDF for a quotation within 24 hours.

SURFACE FINISH

Moulded Surface Treatments & Decoration

We deliver the cosmetic and functional appearance your product needs, controlled through the mould surface and secondary operations.

SPI Polish (A1–D3)

High-gloss to matte mould finishes from diamond-polished A1 for clear/optical parts to sand-blast D3 for uniform matte surfaces.

VDI / Mould Textures

Controlled VDI and MTM/MT textured surfaces for leather, grain and technical patterns that hide knit lines, flow marks and handling.

Painting & Soft-Touch

Spray painting, clear coat, soft-touch and rubberised coatings on moulded housings for a premium look and feel.

Pad / Screen Printing

Pad printing, silk screening and multi-colour logos, markings and labels with durable, legible registration.

Laser Marking

Permanent, high-contrast laser marking of part numbers, logos, CE/UL markings and traceability codes without consumables.

Assembly & Ultrasonic Welding

Ultrasonic welding, heat staking, threaded inserts, assembly and packaging of finished moulded sub-assemblies.

SPECIFICATIONS

Typical Injection Molding Capabilities

ParameterCapability
ServicesMould design (DFM/mould-flow), mould making, first article/T0/T1 trials, production molding, insert & over-molding, assembly
MaterialsABS, PC, ABS+PC, PA6/PA66, POM, PBT, PP, PMMA, PEEK, PPS, PEI, TPE/TPU, silicone; glass/carbon-filled and FR grades
Mould steelP20, 718H, H13, S136, NAK80; single- and multi-cavity, hot-runner, cold-runner and unscrewing tools
Moulded toleranceTypically ±0.05–0.1 mm depending on material and geometry; tighter on critical dimensions with stable process control
Part sizeSmall precision connectors and gears to medium enclosures; weight from fractions of a gram to several kilograms
FinishesSPI polish, VDI/MTM textures, matte/gloss, painting, pad/screen printing, laser marking, ultrasonic welding, assembly
DocumentationMaterial data sheets, resin certificates, first-article inspection (FAI), dimensional reports and part traceability
QuantityPilot/low-volume and high-volume serial production; tooling suited to the expected annual volume
ShippingDHL/FedEx/UPS, air or sea freight; EXW, FOB or DDP to the USA, Germany, France, Italy, Spain, Australia and worldwide
APPLICATIONS

Where Our Moulded Parts Are Used

Functional and cosmetic injection-moulded parts for OEMs needing repeatable, production-ready polymer components.

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Medical & Dental

PEEK and medical-grade components, surgical housings, connectors and fluid-handling parts with documented resins and finishes.

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Electronics & Electrical

Housings, covers, connectors, insulators and structural parts in ABS, PC, PBT and flame-retardant grades.

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Automotive & Mobility

Glass-filled nylon brackets, clips, sensors, interior and under-hood components built for heat and durability.

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Connectors & Telecom

Precision PBT/PA/PPS connectors, sockets and housings with thin walls, tight tolerances and UL flame-retardant grades.

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Industrial & Machinery

Gears, bushings, sliders, guides and wear parts in POM and nylon, plus seals and over-moulded grips.

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Consumer & Appliance

Cosmetic ABS/PC housings, handles, knobs and appliance components with premium textures and printing.

FAQ

Injection Molding FAQ

Practical answers from our engineering team. Still unsure? Send your drawing and ask.

Do you make the mould and run production, or production only?
We do both. We can design and build the injection mould from your 3D model with DFM and mould-flow review, run T0/T1 trials and first-article samples, and then produce serial parts. We can also run production from your existing tool if you transfer it.
Can you injection mould PEEK, PPS and other high-temperature plastics?
Yes. PEEK, PPS, PEI (Ultem) and PAI require drying, high barrel and mould temperatures and careful process control, which our temperature-controlled machines and procedures support. These are commonly used for medical, semiconductor and high-heat industrial parts.
Do you offer insert molding and over-molding?
Yes. We mould metal inserts, threaded bushings and pins into the plastic, and over-mould soft TPE/TPU or silicone onto hard substrates for grips, seals and multi-material connectors.
What information do you need to quote a moulded part?
Send a 3D model (STEP/STP/IGS), the target polymer and grade, estimated annual quantity, colour and finish/texture, and any critical dimensions or certifications. We then provide a DFM review, mould and part pricing, and recommend the appropriate number of cavities.
What tolerance can injection moulding hold?
Typical moulded tolerances are around ±0.05–0.1 mm depending on material, filler and geometry. Tighter tolerances are possible on critical features with stable process control and a well-designed tool; we identify feasible tolerances during DFM.
Who owns the injection mould and how long does it last?
The tool is your asset. We build it to the expected annual volume using suitable steel; hardened tool steels and proper maintenance support high-cavity, long-running production, and we store and maintain tools for repeat orders.
Can you provide texture, colour, printing and assembly?
Yes. We offer SPI polish, VDI/MTM textures, custom colour compounding, painting, pad and screen printing, laser marking, ultrasonic welding, insert installation and sub-assembly to deliver finished, ready-to-use parts.
How do you ship moulded parts and moulds to the USA and Europe?
We ship parts and tools worldwide by DHL/FedEx/UPS, air or sea freight under EXW, FOB or DDP terms. DDP to Germany, France, Italy, Spain and other EU countries includes customs and duty for door-to-door delivery, with parts protected for transit.
RELATED SERVICES

Explore Our Other Capabilities

CONTACT US

Request an Injection Molding Quote

Send your 3D model, resin and annual volume — our engineering team will reply within 24 hours (Mon–Sat).

Contact Information

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Phone / WeChat
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Address
1F, Bldg B, Anhongji Sci-Tech Park, Chuangyi Rd, Dalang, Longhua, Shenzhen, Guangdong, China
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Working Hours
Mon–Sat 08:00–18:00 (GMT+8)

Send an RFQ

STEP, STP, IGS/IGES, DWG, DXF, SLDPRT, X_T, PDF, ZIP, RAR, 7Z & images · up to 50 MB per file, 150 MB combined · up to 10 files. For larger files, paste a file-sharing link in the message.
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