
Plastic Gear Injection Mold
In precision mechanics, the quality of a gear defines the efficiency of the entire system. Creating a Plastic gear injection mold requires a level of accuracy that few factories can achieve. At our facility, we combine 11 years of experience with state-of-the-art Wire EDM and CNC machining to produce gear molds that deliver Grade 8 (ISO) accuracy. We understand that even a 0.01mm error in the tooth profile can lead to noise, excessive wear, or total gear failure. Our "Plastic gear injection mold" services are sought after by clients in the robotics, home appliance, and automotive sectors who require quiet, durable, and high-precision plastic gears for their products.
The longevity of a "Plastic gear injection mold" is just as important as its initial precision. We use high-grade mold steels like S136 or NAK80, hardened to HRC48-52, to ensure the mold can withstand over 500,000 cycles without losing its edge. For a recent project involving robotic joint actuators, we developed a multi-cavity "Plastic gear injection mold" that utilized a specialized gate system to eliminate knit lines on the gear teeth, significantly increasing their structural strength. Every mold we produce is backed by our ISO 9001:2015 certification and a comprehensive quality report. By choosing our "Plastic gear injection mold" solutions, you are investing in a tool that will deliver consistent, high-performance parts for years to come, reducing your long-term maintenance costs and ensuring product reliability.

Specifications
|
Module Range |
M0.2 to M2.0 |
|
Precision Grade |
Grade 8 (ISO or national standard) |
|
Mold Steel |
S136, 718H, NAK80 (HRC48-52) |
|
Wire EDM Accuracy |
±0.002mm |
|
Mold Life |
500,000 shots or more |
|
Sample Lead Time |
1 day minimum for simple structures |
Application Areas
These molds are essential for producing gears for robot vacuums, motorized curtains, electric kettle lid mechanisms, and automotive fuel pump actuators. We also provide precision gears for medical devices and industrial timers where quiet operation is a requirement.
Customization Capability
We offer full gear design services, including tooth profile optimization for noise reduction and load distribution. We can produce spur gears, helical gears, and worm gears. Our technical team can also advise on material selection (such as POM or Nylon with lubricants) to ensure the molded gears meet your specific torque and wear requirements.
Packaging & Logistics
Molds are heavy and precision-sensitive. We package our molds in vacuum-sealed bags with rust inhibitors and secure them in reinforced wooden crates. For the molded gears, we use anti-static, shock-absorbent packaging. We offer EXW, FOB, and DDP shipping options for all international clients.
FAQ
Q: Can you achieve high precision with glass-filled materials?
A: Yes, but glass-filled materials can be abrasive. We design our gear molds with high-wear steel inserts in the tooth areas to maintain precision over the life of the mold.
Q: Do you provide gear measurement reports?
A: Absolutely. Every sample batch comes with a full dimensional report, including gear tooth profile and lead measurements using our CMM and gear testing equipment.
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