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EX55 Bulldozer Excavator Bottom Roller For Hitachi High Strength Steel Construction

EX55 Bulldozer Excavator Bottom Roller For Hitachi High Strength Steel Construction

ex55 bottom roller excavator

ex55 excavator bottom roller

hitachi bottom roller excavator

Place of Origin:

Fujian China

Brand Name:

STST

Certification:

CE、CNAS、COC、SGS、ISO

Model Number:

EX55

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Product Details
Color:
Yellow
Material:
50Mn / 40MnB / 40Mn2 Alloy Steel
Manufacturing Process:
Hot Forging / Casting + Precision Machining + Induction Quenching
Axle Material:
Quenched 42CrMo Medium Carbon Alloy Structural Steel
Surface Finish:
Smooth Machined Surface
Loading Ports:
Xiamen
Highlight:

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ex55 excavator bottom roller

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Payment & Shipping Terms
Minimum Order Quantity
2
Packaging Details
Export pallet packaging
Delivery Time
3-5 days
Payment Terms
T/T
Supply Ability
1500 MT/month
Product Description

EX55 Bulldozer Bottom Roller For Hitachi | Long Service Life & High Strength Steel Construction

Product Overview

As a critical part of the undercarriage system, the EX55 bottom roller supports machine weight, guides track movement, and helps maintain smooth operation across challenging terrains. Built to meet OEM standards, it offers dependable performance and easy installation, making it an ideal replacement solution for worn or damaged rollers.

 

EX55 Bulldozer Excavator Bottom Roller For Hitachi High Strength Steel Construction


Key Features

Long Service Life

Designed for continuous operation under harsh working conditions, the EX55 bottom roller delivers exceptional durability and reduced replacement frequency.

High Strength Steel Construction

Manufactured from premium-grade steel to provide superior structural integrity, impact resistance, and long-term reliability.

Excellent Wear Resistance

The roller shell undergoes precision heat treatment to enhance hardness and minimize wear caused by abrasive materials and heavy workloads.

High Load Capacity

Engineered to support heavy equipment and maintain stable machine performance in demanding applications.

Precision Machining

Accurately machined components ensure proper fitment, smooth track engagement, and reduced friction during operation.

Advanced Sealing Technology

Equipped with high-quality seals that effectively retain lubrication and prevent contamination from dust, mud, water, and debris.


Product Benefits

  • Extended undercarriage lifespan
  • Reduced maintenance costs
  • Improved equipment stability
  • Enhanced operational efficiency
  • Smooth track movement
  • Reliable performance in tough environments
  • Reduced machine downtime
  • Excellent return on investment
  • OEM-quality replacement solution

Technical Specifications

Item

Specification

Product Name EX55 Bottom Roller
Equipment Type Bulldozer / Crawler Equipment
Brand Compatibility Hitachi
Part Category Undercarriage Parts
Surface Treatment Heat Treated
Feature Long Service Life
Performance Heavy Duty Operation
Installation Direct Replacement
Condition New

Quality Control Process

Every EX55 Bottom Roller undergoes rigorous inspection and testing procedures, including:

  • Raw material verification
  • Dimensional accuracy inspection
  • Heat treatment testing
  • Hardness measurement
  • Seal performance testing
  • Assembly inspection
  • Final quality assessment

This ensures consistent quality and dependable field performance.

 

EX55 Bulldozer Excavator Bottom Roller For Hitachi High Strength Steel Construction

Common Signs of Bottom Roller Wear

Regular inspection can help identify wear before it affects machine performance. Common indicators include:

  • Excessive roller shell wear
  • Lubricant leakage
  • Abnormal operating noise
  • Uneven track movement
  • Reduced machine stability
  • Surface cracks or damage

Timely replacement helps protect the entire undercarriage system and prevent costly repairs.


FAQ

What is the function of a bottom roller?

A bottom roller supports the weight of the machine and guides the track chain, ensuring smooth travel and stable operation.

How can a high-quality bottom roller improve equipment performance?

A durable bottom roller helps reduce track wear, improve machine stability, extend undercarriage life, and minimize maintenance costs.

Is this roller suitable for demanding construction applications?

Yes. It is specifically designed to perform in heavy-duty construction, mining, quarrying, and earthmoving environments.


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