Tower Crane Trolley Motor: Models, Compatibility and Replacement Guide

What Is a Tower Crane Trolley Motor?

A tower crane trolley motor is the driving component used to move the trolley along the crane jib. It works with the trolley mechanism, wire rope, drum and brake system to provide stable trolley travel during lifting operations.

SYM supplies tower crane trolley motors for different trolley mechanism configurations, including 4D3V275, 4D3V375 and 5D3V495.

Available Trolley Motor Configurations

The main configurations include:

4D3V275

75 N·m torque, 2500 N rope tension, 0–58 m/min trolley speed, 46 m trolley range.

4D3V375

75 N·m torque, 3500 N rope tension, 0–58 m/min trolley speed, 56 m trolley range.

5D3V495

95 N·m torque, 4500 N rope tension, 0–58 m/min trolley speed, 56 m trolley range.

The listed configurations are suitable for selected tower crane applications with different operating capacities and trolley mechanisms.

How to Choose a Replacement Trolley Motor?

A replacement tower crane trolley motor should match the existing trolley mechanism. Before ordering, it is recommended to provide:

• Tower crane brand and model

• Trolley mechanism model

• Existing motor model

• Motor nameplate

• Rated specifications

• Mounting dimensions

• Clear photos of the motor and trolley mechanism

This information helps confirm the correct motor configuration and avoid compatibility problems.

Tower Crane Trolley Motor Compatibility

SYM supplies trolley motors for selected tower crane configurations from brands including SYM, SCM, YONGMAO and ZOOMLION.

Because trolley mechanisms can differ between crane models, the motor should be confirmed according to the actual equipment rather than selected only by appearance or lifting capacity.

FAQ

Q1. What does a tower crane trolley motor do?

It provides the driving power needed to move the trolley along the tower crane jib.

Q2. What models are available?

The available configurations include 4D3V275, 4D3V375 and 5D3V495.

Q3. Can I replace only the trolley motor?

Yes, in some applications. Compatibility with the existing trolley mechanism should be confirmed first.

Q4. What information is needed for a quotation?

Please provide the crane model, trolley mechanism model, motor nameplate and clear product photos.

Q5. Can you help confirm compatibility?

Yes. SYM can check the available configuration based on your existing tower crane and trolley mechanism information.