Product Details
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
Company Profile
XIAMEN YINTAI MACHINERY CO., LTD. is loed in the beautiful port
city of Xiamen. It is a manufacturing enterprise which is focusing
on research and development, production and trade of construction
machinery parts.
YinTai cooperates with Chinese famous large steel mills, such as
Fujian Sangang Group, Xinyu Iron and Steel Group, Hang Zhou Iron
& Steel, Baogang Group etc. We strictly control cost and
quality from raw materials and transportation. Not only can we
manufacture the products with specific raw material according to
customer requests, but also provide customers with personalized
customization, YinTai strives to maximize customer benefits.

YinTai produces the complete set of bulldozer and excavator spare
parts, including track chain, track shoe, track roller, carrier
roller, idler, sprocket, recoil spring, bucket tooth/adapter,
blade, etc. Our products are suitable for , KOMATSU, HITACHI,
DAEWOO, and other world-famous construction machinery brands.
Relying on the 35-year manufacturing experience of QiXing
Enterprise, our products have won a good reputation all over the
world by our high quality and good services.
Innovation for development, by the good faith to beat the market,
increasing investment in science and technology. In order to ensure
excellent product quality and competitive advantage in price,
YinTai Machinery keeps innovating and improving its quality from
raw materials to production, technology and management. Our
products are the favorites to Chinese customers and sell all around
the world which is deeply favored by the majority of customers.