Description:

Toptrack’s crane top roller is manufactured from high-quality alloy steel using a forging process.It is specially designed for Liebherr LR1350 crawler crane,perfect fit.

Liebherr LR1350 top roller parameters

Apply Model	Liebherr LR1350 Crawler Crane
Material	High-grade Alloy Steel
Warranty Time	2500 hours
Place of Origin	China
Customization	Available
HS Code	8431499900
Production Time	80% are stored in warehouses, some for 7-10 days.

Crane Top roller Production Process

1 Utilizes high-hardness alloy materials

The crane top roller is manufactured using high-quality 50Mn or 40Mn2 alloy materials.All materials must undergo precise analysis using a spectrometer to ensure their purity and initial performance.

After undergoing high-temperature heating, they are forged into roller blanks to achieve precise dimensions.

2 Overall quenching and tempering treatment.

Heat treatment processes—specifically quenching and tempering followed by surface hardening—constitutes the most critical stage in the production of crane top rollers.

This process can enhance the internal toughness of the metal and increase its surface strength.

This enables the crane top roller to operate normally in mines, muddy terrain, and other harsh environments.

3 Fine machining of the surface

Following rough machining, the crane top roller undergoes finish machining using equipment such as milling machines and boring machines.This process renders the component’s surface smoother while ensuring that the crane top roller precisely meets OEM standards.

4 Strictly Quality Control System

From incoming material control to finished product inspection, our crane top rollers are backed by a comprehensive quality control system.

Use a spectrometer to analyze whether the material composition meets standard requirements.

We select only ISO-certified suppliers of high-quality steel.

During the heat treatment process, taking samples to observe the tempered sorbite microstructure and verify the effectiveness of the quenching and tempering treatment.

During the finishing process, shaft-type parts undergo magnetic particle testing or ultrasonic testing to ensure they are free from crack defects.