DFM before steel. T1 measured, not photographed.
Deuchi Plastic builds injection molds and runs production in Wenzhou, China. We review the part before steel is cut, tool the mold in-house, and check T1 against the drawing. Materials we run include BMC, SMC, ABS, PC, PA, POM, and PP.
Contract Manufacturing
The custom plastic parts you need — designed, tooled, and manufactured to your exact requirements. Experience makes the difference.
Engineering Services
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Mold Build
Precision tooling for injection molding. Accuracy, steel life, and a first-article that matches the print.
Learn about mold build -
Prototyping
3D print, CNC, and vacuum casting for form, fit, and early process checks before steel is cut.
View prototyping services -
Material Selection
ABS, POM, PC, PP and filled grades matched to heat, flame, wear, and assembly — not just a resin code.
See material selection guide -
DFM
Wall, gate, draft, and knit-line review so the tool does not lock in a cost you cannot mold out.
Read our DFM review process
Our Application
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Electrical Enclosures & Power Electronics
Inverter and switch housings for industrial control. IP protection, heat dissipation, EMI shielding, flame retardant.
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Industrial HMI & Operator Controls
Joysticks and buttons for machinery and remote controls. Ergonomic, sealed, durable, long service life.
View operator controls -
Precision Mechanical Transmission Parts
High-precision gears for reducers and actuators. Smooth running, low noise, high accuracy, self-lubricating.
View transmission parts -
Robotics & Intelligent Equipment
Protective covers for robot arms and intelligent devices. Lightweight, strong, modular, clean surface finish.
View robotics equipment
Resources
Latest OEM Guides
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MCCB Housing: When BMC Beats the Press and the Expensive Plastic
An MCCB maker already shipped molded-case housings from a hydraulic press at 150 pieces a day. Thermoplastic could fill the presses, but the grades that pass electrical safety were too expensive for the program.
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Fuse Housing Injection Molding: When Automatic Assembly Tightens the Groove
Deuchi molds fuse housings for a Top 10 low-voltage OEM in China. Hand assembly hid a groove that was fine for people and too tight for a robot.
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When Not to Injection Mold: A Marine Case Study
A buyer asked to move a steel marine part to plastic to cut weight. Volume was too low to open a mold. We stayed on machining and placed the order with a partner.
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