Fujian Jinjia Machinery Co., Ltd. is an excellent supplier of excavator parts and bulldozer parts in China. Our main products are the chassis parts of excavators and bulldozers, such as rollers, idlers, etc. More than 50 years of experience in the sales of heavy machinery spare parts, important customers are mainly located in Southeast Asia, the Middle East, South America and some Eastern Europe We have established good business relationships with famous companies around the world. Welcome to visit our factory for further more technological communications!
Top Roller :forging material(50MN) Cover material （QT450）Shaft （45#） Degree of depth ：3mm（Shaft1.5-2mm）Hardness：HRC55-60 Roller body: Forging--Turning operation--Quenching--Fine Turing operation --pressure bushing--- welding slag shovel （clean up the body surface） Shaft forging turning operation drill tapping tapping temper quenching mill right Handed screwEnd cover ：forging/casting/steel rod-rough and fine turning operation drill tapping All parts ready to: assembly-Pressure Test Filling Oil Spray Paint Checking Storage 
| Material | 50Mn |
| Finish | Smooth |
| Technique | Casting/Forging |
| Surface Hardness | HRC55-60 , Depth:4mm-10mm |
| Colors | Black or Yellow |
| Warranty Time | 1440 Working Hours |
| Certification | IS09001-9001 |
| MOQ | 2 Pieces |
| FOB Price | FOB Xiamen US$ 25-100/Piece |
| Delivery Time | Within 30 days after contract established |
| Payment Term | T/T,L/C,WESTERN UNION |
| OEM/ODM | Acceptable |
| Marketing Type: | New Product 2022 |
The roller body we choose is 40Mn2 mainly by casting and forging. It is finished by CNC machine tool and then heat treated, so that the hardness of the wheel surface after quenching can reach hrc50, in order to improve the wear resistance. In terms of precision, we choose the most advanced CNC machine tools, in order to produce the best products
Small working machines for agriculture
Large excavators used in industry
Will the quality and workmanship be guaranteed? Of course, my friend, we all pass professional design and thousands of physical tests to reach the factory standard, so you can rest assured You are a trader or a manufacture? We are an industry and trade integration business,our factory located on Quanzhou Nanan Distric.
