EX200-5 Yellow Color Track Roller OEM Earthmoving Spare Parts HITACHI Buttom Roller Undercarriage Parts Friction-welding track roller
1. What is a roller?
The roller, a key component in the conveyor system, bears the load of both the conveyor belt and the materials it carries. Comprising approximately 35% of the conveyor system's overall expenditure, it is responsible for over 70% of the resistance encountered, highlighting the significance of its durability. There are two primary methods for joining these components: conventional welding and friction welding, with the latter being the preferred technique due to its superior quality.
2. Differences between Friction-welding and Traditional Type
- Track rollers fabricated through friction welding exhibit superior resistance to wear and a prolonged operational life.
- Material usage: In contrast to conventional rollers where the bodies are joined using a filler material, friction-welded rollers rely on the contact between the bodies themselves. This method necessitates the addition of extra material to ensure that the roller conforms to the desired dimensions post-welding.
- Precision of components: Traditional rollers undergo welding following two machining stages, which can result in less precise internal dimensions compared to friction-welded rollers. For friction-welded rollers, an additional round of precise machining with concentric alignment is performed post-welding to guarantee the accuracy of the internal dimensions, indicating a higher level of precision and quality in the components.
3. Production Processes
4. Track Roller Structure
5. Design/Structure/Main Dimensions of Installation
MAIN PARAMETERS
| Brand | Model | Main Dimensions of Installation |
| A | B | E | G | M | L |
| HITACHI | EX30 | 108 | 85 | 112 | 172 | | |
| EX60-1 | 145 | 120 | 152 | 248 | 218 | 15 |
| EX60-2/3 | 145 | 120 | 152 | 248 | 216 | 15 |
| EX60-5 | 135 | 112 | 140 | 227 | 197 | 15 |
| EX100 | 160 | 135 | 184 | 285 | 250 | 17.5 |
| EX120 | 160 | 135 | 184 | 285 | 250 | 17.5 |
| EX150-1 | 170 | 140 | 200 | 304 | 267 | 17 |
| EX200-1 | 185 | 180 | 220 | 356 | 318 | 18 |
| EX200-2 | 185 | 150 | 218 | 330 | 290 | 19 |
| EX200-2B | 195 | 160 | 218 | 330 | 290 | 19 |
| EX220-1 | 195 | 160 | 218 | 360 | 325.4 | 17 |
| EX270-1 | 215 | 180 | 256 | 410 | 368 | 21.5 |
| EX300-2/3 | 215 | 180 | 256 | 410 | 368 | 21.5 |
| EX355 | 215 | 180 | 256 | 410 | 368 | 21.5 |
| EX400-3/5 | 215 | 180 | 256 | 410 | 368 | 23.5 |
| EX450-5 | 240 | 200 | 284 | 447 | 400 | 23.5 |
| UH052 | 170 | 140 | 200 | 304 | 267 | 17 |
| UH07 | 185 | 150 | 220 | 356 | 318 | 18 |
| UH083 | 170 | 140 | 200 | 304 | 267 | 17 |
The models above are just for reference, many models we can't list here.we can supply more products as your requirement. Please feel free to send us your inquiry or email if you have requirements.
6. Our Advantages
* World-class quality
* Factory sale directly with reasonable price
* 35 years' experience in Excavator & Bulldozer spare parts manufacturing
* Flexible payment terms including T/T, L/C and so on
* Fast delivery within 30 days after contract established
* Professional sales team, quality inspection, and report, maritime logistics guidance
* After-sale services: video technical support,24h online support
7. Hot Sale Products
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EX200-5 HITACHI Bottom Track Rollers Friction-welding OEM Parts Images
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