Products
Plastic Gear
Our precision-manufactured gears, available in both plastic and metal materials, feature high-precision tooth profiles and excellent transmission efficiency. They are suitable for various motors, speed reducers, office equipment, and automotive components. Rigorous tooth surface grinding and quality control processes ensure low noise, low backlash, and long-term stable operation.
View More
Small Gearbox Manufacturer
The integrated gearbox module, combining gears, bearings, and housing design, provides high torque output and smooth transmission. Customized reduction ratios and external structures can be developed to meet customer needs, and it is widely used in automation equipment, medical instruments, home appliances, and smart machinery. The modular design facilitates assembly and maintenance, improving the overall system reliability and efficiency.
View More
Gear Pumps
This positive displacement pump, employing a high-precision gear structure, features stable flow rate, low noise, and uniform pressure output. It is suitable for conveying lubricating oil, hydraulic oil, and various industrial fluids. Its wear-resistant materials and precise clearance design ensure long service life and high-efficiency operation.
View More
Insert Molding
Insert Injection Molding is a manufacturing process where metal components, threaded nuts, terminals, or electronic parts are pre-positioned into a mold cavity before being encapsulated with molten plastic. By integrating metal and plastic into a unified structure in a single molding cycle, this process enhances part strength and durability, reduces secondary assembly steps, improves dimensional accuracy, and lowers overall production costs. It is widely utilized in automotive components, electronic connectors, medical devices, and various precision mechanisms requiring high reliability and operational stability.
View More
Plastic Components
Plastic Components & Accessories are extensively used across structural framing, fastening, mechanical connections, and aesthetic enclosures. Leveraging precision injection molding, automated production, and a diverse range of engineering resins, these components deliver the ideal combination of lightweight design, high mechanical strength, corrosion resistance, and cost efficiency. Widely adopted in consumer electronics, automotive parts, home appliances, industrial mechanisms, and daily consumer products, our plastic accessories support custom-tailored solutions. We offer high-performance material modifications—including high-heat resistance, flame retardancy, optical transparency, high impact toughness, and specialized surface finishes—to fulfill stringent industry demands for dimensional precision, mechanical functionality, and visual aesthetics.
View MoreAbout Us
Gear Manufacturer, Gearbox, transmission module, Supplier Since 1989 ~
Yeh Der Gear Manufacturer is the leader in design and manufacture of plastics gears products. The products contain plastic worm gears, helical gears, pinion gears, plastic spur gears, plastic bevel gears and other gears. All procedures from moldflow analysis, mold design, making to injection molding are accomplished under one roof.
The acquirement of ISO 9001 :2015 and ISO 14001:2015 certificate ensures that each step of manufacturing process is under stringent quality control. Our state-of-the-art precision measurement equipment includes concentricity gauges, 2-D vision measuring instruments and gear rolling test machines, etc. In answer to customer's needs, the engineering staff are committed to continuous improvement in every aspect of the products and services we deliver. In addition to existing gears, custom-made products according to customers' designs and specifications are welcome.
Hot Products
.png)
New Products
Assembly Capabilities
Gear Manufacturer, Gearbox, transmission module, Supplier Since 1989 ~
Yeh Der offers comprehensive assembly services, specializing in precision plastic and metal gear integration. With both manual and semi-automated production lines, we ensure high-efficiency assembly of gearboxes, actuator modules, and customized motion systems. Our in-house facilities allow seamless coordination between injection molding, insert molding, and final assembly, supported by rigorous quality control and functional testing.