Speed Reducer Gearbox

Gear ratio (i): 10–450

Rated output torque: 12,000–200,000 N·m

Matching motor power: 15–630 kW

Applications: hoists, winches, and cranes

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Overview

Features

PARAMETER

Application

Overview

Weihua reducer gearbox is the core transmission solution in the field of lifting equipment. It is specially designed for bridge/gantry cranes, port machinery, and metallurgical equipment. It integrates German FLENDER technical standards and has passed ISO 9001 and CE certification.

Features

The crane reduction gearbox is the core component of the crane transmission system, and its performance directly affects the load capacity, operating efficiency and service life of the crane. The following are the main performance characteristics of the crane reduction gearbox:

Hardened gears

20CrMnTi alloy steel carburized and quenched (tooth surface hardness 58-62 HRC) + precision grinding (ISO level 6 accuracy).

Modular design

Supports parallel axis and planetary stage combination, suitable for lifting/running/rotating mechanisms.

Long life design

20,000 hours overhaul-free (rated operating conditions).

Smart lubrication

Optional oil temperature monitoring and forced circulation system.

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PARAMETER

Parameter	Scope
Rated output torque	12,000–200,000 N·m
Transmission ratio (i)	10–450
Center distance (a)	160–800mm
Matching motor power	15–630 kW
Mechanical efficiency	≥96% %
Working temperature	-25℃ ~ +50℃
Protection level	IP55
Explosion-proof certification	Ex d IIC T4
Vibration standards	ISO 10816-3 Class B

Application

The Speed Reducer Gearboxs are usually used in conjunction with overhead cranes, gantry cranes, jib cranes and electric hoists, and are widely used in the following scenarios: