HITACHI EX300-2B Track roller Excavator 

The HITACHI bulldozer track roller is an important part of undercarriage,that transfers the weight of the excavator to the ground.

Technical Data

Excavator Bottom Roller Main Materials:

Roller Body:Adopting the good hardenability 40 Mn2 steel through forging.The Heat treatment of tempering and medium-frequency induction surface hardening assure it’s strength and wear resistance;

Floating seal:Adopting cr-al alloy,HRC 65-72,the roughness of working surface 0.1μM-0.2μM

O-ring:Adopting the raw material of butadiene-acrylonitrile rubber which is the copolymerization of butane and acrylonitrile into produce.That has better oil resistance and high-temperature resistance.

Hoti Parts:Our Advantages

1.One stop service: Full undercarriage parts of excavator and bulldozer are available: track roller/bottom roller/lower roller, front idler, sprocket/segment group, carrier roller/top roller, track chain with shoes/track group, Pin and bushing, bolt and nut.

2. OEM Quality: all products size following OEM strictly. we have IQC, DQC, IPQC, FQC and OQC to control the quality during production. we will also final check before shipping to avoid any problem.

3. Factory direct price: Since of year 2006, we have more than 15 years of the experience in supplying construction machinery replacement parts, we can give you factory direct price to win the market.

Exhibition:

Packing and Shipping:

For any models you need, pls feel free to contact us as below: