Crane Top Roller
30 Years of Experience – Engineering Safety & Reliability into Every Crawler Crane Undercarriage Parts.
What is Crane Top Roller ?
Crane top roller is the wheel that supports the top track. The crane top rollers are located on both sides of the top track, and a crawler crane generally has four top rollers, with a few having six, eight, or no top rollers. On the same model, top rollers are generally smaller than the bottom rollers. But there are also a few top rollers that are the same size as the bottom rollers.
Core functions
- Lift the top track shoes to prevent track impact
- Control the tightness of the track of the track to prevent excessive sagging
- Reduce the running resistance of the track to ensure smooth operation of the track
Premium Material Selection： 40Mn2
Higher manganese content, better strength, toughness, and fatigue resistance. After quenching and tempering, the comprehensive performance is more stable, less prone to deformation and cracking, and the wear resistance is also very good
Adopting 100% pure copper shaft sleeve effectively reduces wear on the shaft. Extend the lifespan of the Crane top roller by at least 30%.
Using high-quality imported sealing rings with good sealing performance can effectively prevent the leakage of lubricating oil.
Abundant Inventory & Logistics Expertise
80% of our products are kept in sufficient inventory to meet the demand for immediate shipment.
The products are packaged on export-specific wooden pallets, fully meeting the export demand
Our sales personnel have extensive export experience and can promptly handle any document related issues for you. Our transportation team will provide you with the best transportation plan and customs clearance assistance.
Reliable Quality Assurance & After-Sales Service
- The product has ISO9001:2015 certification
- 2500 working hours warranty
- Professional Installation technical guidance
- 24/7 online service
High Quality
How to produce crane top roller?
- Cutting
- Forging
- Rough Machining
- Quenching & tempering
- Hardness Test
- Surface Quenching
- Finish machining
- Assembling
Professional Shipment
Our professional export team provides you with the best logistics transportation solutions and customs clearance assistance. The crane top rollers are packaged in export specific fumigation-Free Plywood Pallet. Fully comply with export standards to ensure smooth shipment of goods.
Maintenance suggestions for Crane Top Rollers
1. Regular cleaning to prevent the accumulation of impurities
Regularly clean gravel and debris from the surface of the crane top rollers to prevent hard particles from embedding in the friction surfaces and causing wear or seizure.
2. Regularly inspect bearings and seals, and replace vulnerable parts in time
Regularly check whether the bearing clearance is too large and whether there is any abnormal noise. Are there any signs of aging, oil leakage and cracking in the oil seal and sealing ring.
3. Regularly lubricate the crane top roller
Use high-quality lubricating oil recommended by the manufacturer. When injecting lubricating oil, it is necessary to ensure that the oil is injected properly and prevent the sealing ring from bulging and leaking due to excessive oil injection.
4. Regularly check the coaxiality and installation alignment of the crane top rollers
Regularly check whether the crane top roller is correctly aligned with the track, bottom roller and crane sprocket.If severe unilateral wear is found, it is necessary to check whether the installation bracket is deformed.
5. Regularly check the status of the track and clean up track debris
Check whether the track shoes are abnormally deformed to avoid abnormal protrusions hitting the top roller and causing damage to the top roller.
6. Reasonably adjust the tension of the track to avoid being too loose or too tight
Adjust the tension of the track according to the standard in the operation manual. Before construction and after long-term parking, it is necessary to focus on checking.