
Specialized for ML Plasticizing Machine
Guomao ML series gearboxes are specialized reducers for rubber and plastic machinery (suitable for plastic injection molding machines). Their core transmission system is a combination of helical/bevel gears and planetary gears:
Transmission Principle
◦ Power input from the motor → small gear drives large gear (single-stage reduction) → multi-stage gear meshing → progressive speed reduction and torque increase.
◦ Injection molding machine-specific models often employ a two-stage/three-stage structure: helical bevel gears (reversing + initial reduction) + planetary gears (high torque, high rigidity, coaxial output).
◦ Reduction ratio i = input speed / output speed = number of driven teeth / number of driving teeth.
Core Structure
◦ Gears: Hardened tooth surface, carburized and quenched, ground, high strength, low noise, impact resistant.
◦ Housing: The Injection Blow Molding Machine is made of high-strength cast iron/cast steel, which is shock-resistant and rigid.
◦ Bearings: Heavy-duty thrust/self-aligning bearings, withstand the periodic impact loads of the injection molding machine.
◦ Lubrication: Pressure circulating lubrication/splash lubrication, suitable for continuous heavy loads.
Mechanical Principle
The Guomao ML series is a dedicated gear reducer for injection molding machines. Through multi-stage hardened gear meshing, it achieves speed reduction and increased torque, providing stable and powerful power for mold closing, injection, and plasticizing in injection molding machines, and withstanding frequent impact loads.
Application Industries
Specialized for ML plasticizing machines, this reducer is mainly used in conjunction with plastic injection molding machines and is widely used in industries such as home appliances, automobiles, 3C electronics, packaging, daily necessities, medical consumables, and building materials/pipe fittings, where plastic products are manufactured.



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