Crane Top Roller
What is crane top roller
The crawler crane top roller of the crane is part of the crawler crane undercarriage and is a key part of the overall stability and performance of the crane. Its main function is to support the weight of the crawler crane and allow the crawler tracks to move along the quality crane top roller. If the crane top roller is damaged or worn, it may cause the crane’s hoisting mechanism to malfunction, resulting in potential safety hazards or inefficient operation. Therefore, regular maintenance and inspection of the crawler crane top roller is necessary to ensure the safe and smooth operation of the crane.
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VM® Crane Top Roller
The quality crane top roller is made of round steel forged with imported hard copper sleeves. It has properties such as friction resistance, high strength, and good hardness. The crawler crane's upper roller has strong stability and long service life and is suitable for various harsh environments.
As the crane top roller supplier, VM can provide more than 20 models such as Kobelco, Liebherr, Hitachi, Sumitomo, Manitowoc, IHI, Link-Belt, Sharyo Nippon, XCMG, SANY, Zoomlion, etc.
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Pure copper copper sleeve
The crawler crane top roller uses pure copper sleeve, which has high wear resistance and good strength. Paired with imported lubricating oil, the lubrication effect is good, reducing the replacement frequency of the crane carrier roller and increasing its service life.
Imported "o" ring
The quality crane top roller adopts imported "O" rings and floating oil seals to isolate external conditions and is wear-resistant and impact-resistant. It has a strong anti-pollution ability and contributes to the sealing property of the crane upper roller, making it less prone to oil leakage.
Round steel forging
The wheel body of the crane carrier roller is forged from round steel, which not only improves the pressure resistance and wear resistance of the wheel body, but also eliminates the internal defects of round steel, making the entire crawler crane upper roller more stable.
Available Model
- Product Name： Top Roller for Hitachi crawler crane
- Brand: VM
- Introduce: The Hitachi top roller is forged from round steel to ensure the strength and wear resistance of the Hitachi upper rollers. Making it capable of withstanding heavy-duty and long-lasting use Hitachi crawler cranes.
- Available Models: CX300, CX500, CX700, CX900, CX1000, KH100, KH125, KH180, KH230, KH250, KH300, KH700, KH1000, etc.
- Product Name： Top Roller for IHI crawler crane
- Brand: VM
- Introduce： IHI top rollers use pure copper sleeves and are equipped with lubricating oil, which has a good lubrication effect and makes them last longer.
- Available Models: CH350, CCH500, CCH700, CCH900, CCH1000, CCH1200, CCH1800, CCH2000, CCH3000, DCH700, DCH900, K1000, etc.
- Product Name： Top Roller for Link-Belt crawler crane
- Brand: VM
- Introduce： VM has 27 years of experience in producing Link Belt top rollers. Through technical improvements, it has improved the endurance and friction resistance of Link-Belt upper rollers and reduced the frequency of replacement of carrier rollers.
- Available Models: LS98, LS108H5, LS138H, LS218HII, LS238H, LS248H5, LS278, LS408, etc.
Terex American Top Roller
- Product Name： Top Roller for Terex American crawler crane
- Brand: VM
- Introduce： Terex American top rollers are one of VM’s best-selling crawler crane parts. Not only does it have strong friction resistance, it also has good corrosion resistance, and the use of special steel ensures that the product can be used perfectly at temperatures below 0 degrees Celsius.
- Available Models: HC50, HC60, HC80, HC110, HC120, HC125, HC165, HC210, HC230, HC275, etc.
Maintenance Tips for Crane Top Roller
01
Check for Wear
Inspect the crane carrier roller bearings for signs of wear or damage, as worn bearings can cause uneven roller operation and potentially lead to hoist system failure. Additionally, check the surface of the crawler crane top roller for any grooves, flat spots, or pits, which may indicate excessive wear and signal the need for replacement.
02
Tightness and Alignment
Ensure that the crawler crane upper rollers are securely mounted to the crane's boom, with no loosened bolts or fasteners, as any looseness can lead to misalignment and increase stress on the hoist ropes. Additionally, verify that the crane carrier rollers are properly aligned with the hoist rope or chain, as misalignment can result in uneven rope wear or damage to the crane upper rollers.
03
Environmental Considerations
Keep the crawler crane top rollers and surrounding area free of dust, debris, and other contaminants that can cause wear. Environmental factors such as dust, salt, or chemicals can accelerate crawler crane carrier roller wear.
04
Replacement and Repair
If the crawler crane top rollers show signs of severe wear, cracking, or damage, replace them immediately to prevent further damage to the hoist system. Additionally, schedule regular overhauls of the crane’s hoisting system to assess the condition of the top rollers and other related components. This proactive maintenance allows for thorough inspections and helps identify potential issues early.
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