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As one of China's top manufacturers and suppliers of carrier rollers, GT produces high-quality top rollers and carrier rollers. For 2 decades, we have serviced customers across various industries with our durable, precision-engineered roller products. And many customers’ approval makes our company to be better.

Excavator Carrier Roller And Excavator Top Roller By GT

Excavator carrier rollers and excavator top rollers are essential components of an excavator's undercarriage system, playing a vital role in supporting the machine's weight and facilitating smooth track movement.

Excavator carrier rollers, also known as excavator bottom rollers or excavator lower rollers, are located on the underside of the undercarriage and support the lower track run. While excavator top rollers, also known as excavator track rollers or excavator upper rollers, are located on the upper side of the undercarriage and support the upper track run. Our company can ensure the quality of these elements to keep the safe of the excavator.

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Materials of Excavator Carrier Roller and Excavator Top Roller From GT

Steel: Steel is the primary material used for carrier rollers and top rollers due to its strength and durability. High-strength steel alloys are chosen to withstand the demanding conditions of excavation and construction environments.

Cast Iron: Cast iron is also commonly used for carrier rollers and top rollers, particularly in heavy-duty applications. Cast iron provides good wear resistance and can withstand high loads.

Materials and Heat Treatment of Supporting Excavator Wheels With Top Benefits

  • The bodies of the supporting wheels are manufactured from high-quality alloy steels such as 50Mn or 40SiMnTi. These materials provide strength for heavy-duty use.
  • The wheel bodies have a round shape which is forged from bar stock of the alloy steel.
  • A multi-step heat treatment process is applied to further enhance the wheels’ properties. Heating, quenching, and tempering transforms the microstructure for optimal characteristics.
  • Quenching after heating increases the surface hardness to between HRC 50-58 on the Rockwell scale. This hard surface layer improves wear resistance during operations.
  • The wheel shafts utilize high-manganese steel for its strength. Shafts undergo quenching and tempering as well to achieve a hard exterior with ductile core.

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