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RITO Arm Cylinder Head Pin 120501-01078 Boom Cylinder Pin for Doosan DX300LC Excavator

Worn pins cause downtime and spike costs for mines. Poor fits lead to cylinder misalignment and failure. The 120501-01078 ensures a precise fit. This high-strength Arm Cylinder Head Pin for Doosan DX300LC uses vacuum quenching to resist wear and ensure zero-defect fleet operation.

  • Item NO.:

    120501-01078
  • Order(MOQ):

    1
  • Payment:

    T/T, WESTERN UNION, CHINESE BANK,PAYPAL
  • Product Origin:

    JAPAN
  • Lead Time:

    2-3 DAYS
  • Product Details
Unreliable pins risk catastrophic failure under heavy loads, hurting wholesaler reputations. Our 120501-01078 solves this with extreme durability. Engineered for DX300LC, this Boom Cylinder Pin minimizes friction in mining, offering agents a reliable, high-margin industrial solution.

120501-01078  Boom Cylinder Pin

 
Product Specifications

Part Number  120501-01078
Part Name Arm Cylinder Head Pin
Compatible Brand Doosan
Applicable Models Doosan DX300LC
Application Excavator hydraulic system
Material High-Strength Alloy Steel
Product Color Metallic Grey or Black Oxide
Working Temperature -40°C to 120°C
Key Function Connecting and securing the boom/arm cylinder to the excavator linkage
Condition 100% New, Aftermarket / OEM Quality
Packaging Wooden Case/Reinforced Carton/Neutral Packing / Customized Box

 

Key Features & Advantages


Precision

Heavy-Duty Durability

Engineered with premium alloy steel and advanced heat treatment to withstand the high-impact stresses of rigorous mining and excavation environments.
Leak-Free

OEM Precision Fit

Specifically calibrated for the Doosan DX300LC boom and arm cylinders, ensuring seamless installation and reducing mechanical vibration during use.
 
 
Direct Fitment

Anti-Corrosion Finish

Features a specialized surface coating that prevents oxidation and rust, maintaining structural integrity even in humid or chemically harsh jobsites.

Rigorous Testing

Extended Service Life

High surface hardness reduces abrasive wear between the pin and bushing, significantly lowering the total cost of ownership for large-scale fleets.
 
 

 

Excavator Hydraulic Part

FAQ


Q: What specific failure symptoms indicate this pin needs immediate replacement?
A: Look for visible metal shavings at the joint, unusual knocking sounds during cylinder extension, or "wandering" of the arm precision. Excessive play in the 120501-01078 joint can lead to ovalization of the cylinder ear, causing expensive structural damage if not addressed.
 
Q: What are the critical technical requirements for installing these heavy-duty pins?
A: Ensure the bushing is cleaned and inspected for scoring before insertion. We recommend a thin coat of molybdenum disulfide grease. The DX300LC pin must be aligned perfectly to prevent galling during press-fitting; never force the pin with a sledgehammer if resistance is felt.
 
Q: How do we verify this pin is the correct fit for our diverse Doosan fleet?
A: This specific pin is optimized for the DX300LC series. Before purchasing, verify the OEM part number 120501-01078 against your parts manual. For wholesalers, we provide dimensional verification (Diameter/Length) to ensure compatibility with both standard and long-reach booms.
 
Q: How does this pin perform in extreme mining environments or sub-zero climates?
A: Our pins undergo low-temperature impact testing to ensure they don't become brittle. With a rated working temperature down to -40°C, the 120501-01078 maintains its toughness, preventing snapping or cracking under the sudden hydraulic pressures typical of arctic or high-altitude mining.

 

Q: What quality options are available?

A: We provide original, OEM, and high-quality aftermarket versions with stable supply capability.

 

Q:Why Choose RITO?

A:Listed Factory

Stable&Reliable Quality

OEM Factory for Chinese Top Excavator Brands

Supplier to Fortune 500 Companies

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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If you are interested in our products and want to know more details,please leave a message here,we will reply you as soon as we can.

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