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Professional Plastic Mold Manufacturer in China

Since 1997, Topper has delivered high-quality, low-cost plastic injection molds and precision molding services with fast turnaround times. ISO 9001:2008 certified with in-house foundry and molding plant.

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Why Choose Topper?

Low Cost

Leveraging our offshore plastic mold making plant with a lower cost structure, we offer competitive pricing without compromising quality.

High Quality

ISO 9001:2008 certified with rigorous quality control systems ensuring your parts meet the highest standards for your applications.

Quick Turnaround

We offer multiple shipping options, including next-day air, to meet your urgent project timelines and budget requirements.

About Topper Plastic Mold

Topper Plastic Mold Co., Ltd. has been a trusted name in the plastic mold industry since 1997. With our own plastic mold foundry and injection molding plant, we offer end-to-end solutions from mold design to mass production.

Our expertise spans across industries including automotive, medical, lighting, and consumer electronics. We specialize in precision plastic injection molds, overmolding, rapid prototyping, CNC machining, and die casting.

  • ISO 9001:2008 Certified
  • In-house mold design & manufacturing
  • German-grade steel molds (718, S136, P20, NAK)
  • Molds built to HASCO, DME, LKM, DIN standards
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Injection Mold Maintenance

Our Products

Plastic Overmolding

Plastic Overmolding

Customized overmolding solutions for complex parts requiring multiple materials or soft-touch finishes.

Material: ABS, TPE, TPU

Standard: HASCO, DME

Life: 500K+ cycles

Custom Plastic Molds

Custom Plastic Molds

High-precision molds made from German steel with tight tolerances and long service life.

Core: 718, S136, P20

Time: 20-25 days

Life: 500K–1M cycles

Plastic Gears

High-Precision Plastic Gears

Engineered for durability and low noise in automotive and industrial applications.

Material: POM, Nylon, PEEK

Tolerance: ±0.02mm

MOQ: 1,000 pcs

Injection Mold Maintenance

Injection Mold Maintenance

Comprehensive mold care services to extend lifespan and ensure consistent part quality.

Service: Cleaning, repair, polishing

Frequency: Preventive & corrective

Support: On-site & remote

Injection Molding Parts

Plastic Injection Molding

Mass production of high-quality plastic parts with surface treatments like chrome plating.

Materials: PP, PC, PMMA, ABS

Surface: Brush, chrome, painting

MOQ: 1,000 pcs

Rapid Prototyping

Rapid Prototyping

Fast-turn prototypes using 3D printing, CNC, and low-volume injection molding.

Materials: ABS, PC, PU, POM

Delivery: 3–7 days

MOQ: 1 pc

CNC Machining

CNC Machining

Precision machining for molds, fixtures, and metal components with tight tolerances.

Materials: Steel, Aluminum, Brass

Tolerance: ±0.01mm

Processes: Milling, turning, drilling

Die Casting

Aluminium Die Casting

High-strength aluminum parts for automotive and industrial applications.

Alloy: A380, ADC12

Weight: 10g–2kg

Finish: Anodizing, powder coating

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Our Services

Mold Design

Full 3D CAD design with DFM analysis and mold flow simulation.

Injection Molding

High-volume production with strict quality control and traceability.

Rapid Prototyping

From concept to physical model in days using 3D printing and CNC.

Quality Control

In-process and final inspections with CMM, optical comparators, and reports.

25+
Years in Business
500+
Global Clients
1000K+
Mold Cycles
98.7%
On-Time Delivery

Frequently Asked Questions

What materials do you use for plastic molds?

We use high-grade German steel including 718, S136, P20, and NAK. We also support LKM, EK4, and X13T6W based on customer requirements.

How long does it take to build a mold?

Typically 20–25 days depending on complexity. Rapid molds can be delivered in 10–15 days for urgent projects.

Do you offer design support?

Yes, our engineering team provides free DFM (Design for Manufacturing) analysis and mold flow simulation to optimize your design.

What is your minimum order quantity?

For prototyping, MOQ is 1 piece. For injection molding, MOQ starts at 1,000 pcs depending on part size and complexity.

Get in Touch

Ready to start your next project? Contact us today for a fast, accurate quote.

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