injection mold company

China Custom Plastic Injection Mold Manufacturer Since 2005

ONE STOP SERVICE FROM DESIGN, PROTOTYPE,

TOOLING, INJECTION MOLDING AND SHIPMENT

PRICE: 20% LOWER AND DELIVERY: 15 DAYS LESS

plastic mold

Established in 2005, PIM(Topworks) plastic mold company supplies design of plastics, contract plastic mold making, and custom injection molding service.

Endlessly, Topworks plastic mold manufacturer is dedicated to supplying top quality, tight tolerance contract plastic injection molds.

And now it becomes a key Chinese plastic mould company and contract tooling maker for high-quality plastic injection mold tooling.

Starting from humble beginnings in 2005 with 15 employees in a 500 square meter plant in Huangyan, known as a Chinese mold town with over 3 thousand plastics companies,

Today it has grown to employ 80 staff across locations in both Huangyan and Dongguan, including over 70 professional plastic mold engineers boasting rich mold-making experience.

injection mold
injection mold process

Best Small to Medium-Sized Business (SMB) and Startup: Topworks is a good option to consider by businesses that need a high level of collaboration, personal service, and one-stop-shop, design to production. The fact that we concentrate on customer service and project management is a major benefit to clients that might not have the large in-house engineering staffs.

Talking to you straight means we can figure out what you need and get it just right. Our goal is to give you the best molds out there, custom-made quick and smart for what you ordered. We’re in it for the long haul – aiming to boost your workflow and keep you crushing it in the marketplace year after year. Teaming up with you means a lot to us and we can’t wait to keep this going strong as trusty partners down the road.

design of injection mold

Inquiry More Today

Partner with Topworks today to transform your complex designs into flawless, cutting-edge products through our agile, technology-driven solutions.

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What Our clients say

“I’m glad to inform you that all plastic parts are perfect!!! We are delighted, and therefore there are good chances to continue our relationship for any coming new project.”

Cristiano

Cristiano

purchase manager

“Steven is an excellent professional with great knowledge and technical practice.”

Paulo

Paulo

CEO

“Steven is a very detail-oriented project manager and engineer who can solve problems creatively and also provides excellent service. It was a pleasure working with him.”

paula

Paula

CEO

★ Direct Factory Tooling Lines · Huangyan, China

Custom Plastic Mould Solutions by Product & Industry

Explore our specialized engineering specifications, steel grades, cycle-time benchmarks, and DFM standards across 18 core tooling lines:

Automotive Exterior

Car Bumper Moulds

Internal parting technology & 8–12 drop SVG sequential valve gating for zero weld lines on Class-A fascias.

DIN 1.2738 · 40–50s CycleSpecs →
Automotive Interior

Car Door Panel Moulds

SVG sequential gating, porous-vented speaker meshes & zero-sink doghouse lifters for grained trims.

1.2738 / 718H · LH+RHSpecs →
Automotive Exterior

Radiator Grille Moulds

500T die-spotted honeycomb shut-offs in mirror S136 for blister-free chrome & piano-black ASA.

Assab S136 · SPI A-1Specs →
Logistics & Packaging

Plastic Crate Moulds

High-speed mesh fruit crates, 24-cell bottle crates & collapsible boxes with BeCu corner cooling.

H13 / 718H + BeCu · 15–28sSpecs →
Heavy Logistics

Plastic Pallet Moulds

1200×1000mm 9-leg nestable & 3-runner steel-reinforced rackable pallet tooling with 12–16 hot drops.

1,800T–3,500T · BeCu PillarsSpecs →
Municipal & Environmental

120L / 240L Dustbin Moulds

EN 840 wheelie bin & household pedal bin moulds with anti-shift locks, BeCu rims & air-poppet ejection.

DIN 1.2738 · 50L–1100LSpecs →
Furniture Tooling

Plastic Chair Moulds

Monobloc, rattan armchair & gas-assisted chair moulds with interchangeable backrest pattern inserts.

1 Mould = 4 Back Styles · 32–42sSpecs →
Furniture & Household

Plastic Stool Moulds

Stackable dining stools, rattan stools, TPE anti-slip step stools & 5-piece foldable stool sets.

4-Way Locks · 18–26s CycleSpecs →
Industrial Packaging

Paint Bucket & Pail Moulds

1L–25L round/square pails & tear-band lids holding ≤0.08mm concentricity, IML robot ready.

H13 + BeCu Collar · 16–22sSpecs →
High-Speed Packaging

Thin-Wall Container Moulds

0.38–0.65mm takeout food boxes, bubble-tea cups & IML dairy tubs with dual-cone self-locking.

S136 (HRC 52) · 4.0–6.5sSpecs →
Beverage Packaging

PET Preform Moulds

1 to 72 cavities pneumatic valve-gate preform tooling for PCO 1881/1810 water, oil & 5-gallon jars.

S136 · ≤0.05mm EccentricitySpecs →
Beverage & Closures

Cap & Closure Moulds

8–72 cavity beverage caps, 5-gallon caps, motorized unscrewing & In-Mold Closing (IMC) flip-tops.

S136 / Stavax · 4.5–8.0sSpecs →
Energy Storage

Battery Case & Box Moulds

Automotive N-series, DIN, inverter IT500, UPS & Li-ion cell containers with leak-proof sealing flanges.

718H / 1.2738 / H13 SteelSpecs →
Personal Protective (PPE)

Safety Helmet Moulds

ANSI Z89.1 & EN 397 hard hat shell, 6-point harness & ratchet moulds with stress-free crown gating.

S136 / H13 · Logo InsertsSpecs →
Plumbing & Municipal

Pipe Fitting Moulds

Collapsible-core, arc-core & hydraulic chain-core moulds for elbows, tees & threaded fittings.

PVC, PPR, PE, PP, PPSUSpecs →
Electrical & Connectors

Electronics & Connector Molds

Tight-tolerance enclosures, terminal blocks & pin headers in UL94 V-0 PC/ABS, PA66+GF, PPS & LCP.

±0.05mm · Insert MoldingSpecs →
IT & Office Hardware

Printer & Office Equipment Molds

Multi-slide structural housings for multifunction printers, copiers, POS terminals & server bezels.

DIN 1.2316 & Nitrided 1.2738Specs →
Horticulture & Garden

Plastic Flower Pot Moulds

Fast-cycling gallon nursery pots & 3D rattan planters with hardened H13 flash-free drainage shut-offs.

100% Recycled PP/PE ReadySpecs →

Injection Mold PRICE AND MANUFACTURING PROCESS

injection molding design

Injection Mold Quotation Process

The injection mold quotation process can seem complex for customers who are new to injection molding manufacturing. With multiple steps involving design, engineering, tooling, and production planning, generating an accurate quote requires expertise and care.

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injection molding part

Key Factors Influencing Injection Mold Pricing

Injection mold pricing depends on numerous intersecting components and influencing variables. Unlike simple manufactured parts quoting, mold costs encompass specialized design, engineering, machining, components, automation, and project management.

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plastic mold

Injection Mold Manufacturing Process

Below we detail our advanced mold machining technology, quality standards, inspection protocols, and process controls.

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what we supply

  • Plastics Design
  • Rapid Prototyping
  • Multi-cavity Plastic Mold
  • Family Plastic Mold
  • Hot-runner Plastic Mold
  • Plastic Molding (Injection and Blow)
  • Secondary Operations
  • Assembly