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China factory - XIAMEN YINTAI MACHINERY CO., LTD.

XIAMEN YINTAI MACHINERY CO., LTD.

  • China,Xiamen ,Fujian
  • Verified Supplier
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  3. Heavy Duty Bottom Track Rollers with 7-10mm Hardened Layer Depth and Precision
China Heavy Duty Bottom Track Rollers with 7-10mm Hardened Layer Depth and Precision
China Heavy Duty Bottom Track Rollers with 7-10mm Hardened Layer Depth and Precision

  1. China Heavy Duty Bottom Track Rollers with 7-10mm Hardened Layer Depth and Precision
  2. China Heavy Duty Bottom Track Rollers with 7-10mm Hardened Layer Depth and Precision
  3. China Heavy Duty Bottom Track Rollers with 7-10mm Hardened Layer Depth and Precision

Heavy Duty Bottom Track Rollers with 7-10mm Hardened Layer Depth and Precision

  1. MOQ： 1PCS
  2. Price： Negotiable
  3. Get Latest Price
Payment Terms L/C,T/T
Supply Ability 10000 PCS/Month
Delivery Time 7-30 Days
Packaging Details Export Packaging
Material 40Mn2、40MnB、50Mn
Technique Forging/Casting
Colour Yellow or Black or Customer Required
Condition New
Shipment By Air, Ship and Express
Surface Hardness HRC52-58
Weight Optional
Brand Name YT
Model Number EX800
Place of Origin China(Mainland)
Certification ISO9001

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  1. Product Details
  2. Company Details

Product Specification

Payment Terms L/C,T/T Supply Ability 10000 PCS/Month
Delivery Time 7-30 Days Packaging Details Export Packaging
Material 40Mn2、40MnB、50Mn Technique Forging/Casting
Colour Yellow or Black or Customer Required Condition New
Shipment By Air, Ship and Express Surface Hardness HRC52-58
Weight Optional Brand Name YT
Model Number EX800 Place of Origin China(Mainland)
Certification ISO9001
High Light Hardened Layer Depth Bottom Track Rollers ，Precision Forging Excavator Undercarriage Parts ，Temperature Range Track Rollers

 HITACHI Excavator Undercarriage Spare Parts Heavy Duty Bottom Track Rollers Replacement For EX800 



1. What is a Track Roller?


As a core component of belt conveyors, the roller comes in diverse types and large volumes, serving to support the conveyor belt and bear the weight of transported materials. It accounts for 35% of a belt conveyor’s total cost while contributing to over 70% of the conveyor’s total resistance—making its quality critically important. Rollers are primarily available in two materials: steel and plastic.
For track rollers, the choice of material—40Mn2, 40MnB, or 50Mn—depends on specific operating conditions. These rollers undergo precision forging followed by normalization, prior to full heat treatment. This rigorous process achieves a surface hardness of HRC 52–56, with a hardened layer depth of over 7–10mm (maintaining HRC 45 at the layer core). The result is exceptional durability: the rollers deliver strong impact resistance and superior surface wear resistance at their contact points, even under heavy loads. To adapt to varying climates and temperatures, we integrate high-performance floating seals and a specialized lubrication system. This design enables both track rollers and carrier rollers to operate reliably in harsh working environments or climates, with a temperature range of -45℃ to 120℃, while ensuring the components remain maintenance-free.



2. Track Rollers Excavator Features

  • Our track rollers undergo specialized quench-tempering processes, which hone their mechanical properties to excellence—delivering high tensile strength, superior resistance to bending and breakage, and enhanced wear resistance. This ensures they maintain peak performance even under the intense stress of heavy-duty operations.
  • We take immense pride in the quality of our track rollers. By combining advanced heat treatment techniques, empirical expertise honed in mining applications, and premium floating seals and bearings, we craft heavy-duty track rollers that stand out for exceptional durability—engineered to thrive in the harshest working environments.
  • Our track rollers are built for longevity, thanks to the synergy of precision-engineered components, meticulous heat treatment, and a lifetime sealing system. Their shells, forged from deep-hardening steel, are specifically designed to resist bell mouthing—a common culprit behind premature failure. Every roller is backed by a manufacturer’s warranty, offering added assurance for your equipment’s reliability.



3. Track Roller Structure




4. 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 any requirements.


5. Production Process



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 Details

Bronze Gleitlager

,

Bronze Sleeve Bushings

 and 

Graphite Plugged Bushings

 from Quality China Factory

  • Business Type:

    Manufacturer,Exporter

  • Year Established:

    2011

  • Total Annual:

    10Million-20Million

  • Employee Number:

    50~100

  • Ecer Certification：

    Verified Supplier

  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 mi...   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 mi...

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Get in touch with us

  • Reach Us
  • XIAMEN YINTAI MACHINERY CO., LTD.
  • No.83-5, Xin’An Road, Nei Cuo Town, Xiang’An District, Xiamen City, China
  • https://www.undercarriagespare-parts.com/

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