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Liebherr R984C Bucket Cylinder

Liebherr R984C Bucket Cylinder Assembly | Heavy Hydraulic Ram

OEM-spec double-acting bucket hydraulic cylinder for Liebherr R984C / R984B 120-tonne mining excavators and face shovels. Built with heavy-wall forged steel barrels, induction-hardened chrome rods, and integrated end cushioning for maximum bucket breakout force.

Description

OEM-Quality Liebherr R984C Bucket Hydraulic Cylinder Assembly

Maximize bucket curl force, digging efficiency, and attachment longevity in harsh mining applications with a heavy-duty Liebherr R984C Bucket Cylinder Assembly. Engineered specifically for Liebherr R984C and R984B (120-tonne operating weight class) hydraulic excavators and Litronic face shovels, this double-acting hydraulic ram converts high-pressure system flow into massive bucket breakout forces required for handling blasted rock, overburden, and mineral deposits.

Constructed to endure severe hydraulic pressure spikes and continuous shock loads, each cylinder body features high-tensile forged steel barrels and precision end-stroke cushioning to protect attachment pin linkages from destructive mechanical impacts.

Key Features & Benefits

  • Heavy-Wall Seamless Forged Steel Barrel: Precision line-bored and honed to mirror finishes to reduce friction, internal fluid bypass, and seal abrasion under 35 MPa pressure operating cycles.

  • Induction-Hardened Hard Chrome Piston Rod: High-yield alloy steel rod plated with thick industrial chrome resists bending, scoring, and pitting from abrasive quarry debris and rock contact.

  • Multi-Stage Pressure & Wiper Seal Package: High-performance polyurethane U-cup pressure seals and heavy-duty metal-cased wipers keep contamination out while maintaining zero oil bypass under full-load breakout efforts.

  • Integrated Hydraulic Stroke End Dampening: Cushioning valves slow the piston down smoothly at full extension and retraction limits, preventing metal-to-metal impact shock against the stick linkage.

  • Precision-Bored Spherical Bearing Pin Eyes: Heavy-duty spherical bearings with protective dust seals isolate the cylinder rod and base pins from side-load binding during off-center digging maneuvers.

Verified Technical Specifications

Parameter Specification
Compatible Machine Model Liebherr R984C / R984B Hydraulic Excavator & Face Shovel
Machine Operating Weight ~118.9 – 125.0 tonnes (262,000 – 275,500 lbs)
Engine Output 504 kW / 675 HP @ 1,800 RPM (Cummins QSK19 / MTU V12)
Max Hydraulic Working Pressure 35.0 MPa (350 bar / 5,076 psi)
Attachment Compatibility Backhoe Excavator & Front Shovel (FS) Bucket Linkages
Piston Rod Construction High-Yield Alloy Steel, Induction-Hardened & Chrome Plated
Eye Mounts Precision Spherical Bearings with Dust Wipe Seals
Application Bucket Kinematics – Curl, Digging & Dumping Breakout