Kawasaki VRD63 Pilot Gear Pump for CAT120 Excavators spare parts

Kawasaki VRD63 Pilot Gear Pump for CAT120 Excavators spare parts Featured Image
  • Kawasaki VRD63 Pilot Gear Pump for CAT120 Excavators spare parts
  • Kawasaki VRD63 Pilot Gear Pump for CAT120 Excavators spare parts
  • Kawasaki VRD63 Pilot Gear Pump for CAT120 Excavators spare parts

Short Description:

The TSM72 gear pump is a newly developed micro heavy-duty high-pressure pilot auxiliary pump, specially designed to fill the gradient gap between ultra-micro and small-tonnage excavators in the full TM/SG/SBS series.

Product Detail

Product Tags

description

The VRD63 pilot gear pump adopts a high-rigidity integrated aluminum alloy pump body and precision low-pulsation modified gear pair, specially optimized for the medium-duty earthworking cycle of CAT120/CAT312D2 excavators. Through exclusive CAT-specific flow channel damping optimization and low-pressure precise calibration, it effectively suppresses the unique hydraulic pulsation and idle pressure fluctuation of CAT 12-ton hydraulic systems, maintaining stable and linear pilot pressure output throughout municipal fine trimming, soil loading and long-term full-load continuous operation. Equipped with a CAT-original-data-matched mechanical constant pressure stabilization system, it accurately locks the optimal working pressure range of 24–28bar, completely solving the problems of stiff operation and floating control caused by excessive pressure of SBS heavy-duty pumps or mismatched low-pressure parameters of TM/SG micro pumps. Adopting imported high and low temperature resistant composite oil seal and full-circumference seamless anti-leakage structure, it adapts to all-weather long-cycle variable-load operation of CAT medium excavators, eliminating hidden troubles of internal leakage and pressure attenuation after long-term construction.

product parameters

Product Model: VRD63 (CAT120/CAT312D2 Dedicated Version)
Product Type: 12–13 Ton CAT Medium Earthwork Excavator Exclusive Pilot Control Pump
Applicable Equipment: CAT120 / CAT312D2 Series Excavators (Working Weight: 12.9t, Original Main Pump Displacement: 4.25L)
Structural Features: CAT Model-Specific Calibration, Low Flow Pulsation, Original Hydraulic Logic Matching, Full-Condition Constant Pressure Stabilization, Seamless Anti-Leakage Structure
Core Material: Precision Low-Pulsation Alloy Gear + High-Rigidity Integrated Aluminum Alloy Pump Body + Imported High & Low Temperature Resistant Composite Oil Seal
Working Performance: Accurate Pressure Matching, Linear Control Feel, No Idle Floating, No High-Temperature Pressure Attenuation, Sensitive Compound Action Response
Core Functions: Provide factory-calibrated stable pilot pressure for CAT120/CAT312D2, eliminate floating control and slow response, stabilize medium-load compound operation, and restore original hydraulic control performance
Applicable Scenarios: Municipal Fine Renovation, Large-Volume Earthwork Excavation & Loading, Long-Term Full-Load Continuous Operation, All-Weather Variable-Load Construction
Matching Parts: Exclusive Supporting Pilot Pump for CAT312D2 Original 4.25L Displacement Main Pump

advantages

  • CAT12-Ton Exclusive Calibration, Zero Parameter Mismatch: Abandon universal general-purpose tuning, VRD63 is fully calibrated based on CAT120/312D2 original hydraulic data. It perfectly matches the 4.25L large-displacement main pump, avoiding the stiff control of high-pressure SBS series and distorted fine control of low-pressure TM/SG micro pumps, retaining the original linear and delicate control characteristics of CAT medium excavators.
  • Targeted Anti-Floating Stabilization, Solve CAT Classic Faults: Optimized for the inherent low-pressure fluctuation defect of CAT 12-ton earthwork machines, the precision constant pressure system effectively suppresses idle pressure drift and low-speed jitter. The operating feel is consistent and linear from inching fine trimming to full-load compound excavation, completely solving the long-term pain point of floating control in old CAT120 equipment.
  • Low-Pulsation Hydraulic Design, Smoother Earthwork Compound Actions: Custom flow channel damping reduces hydraulic impact and flow pulsation, making slewing, lifting and digging compound actions coherent and smooth during long-term high-volume earthwork and loading operations, improving construction efficiency and operation comfort significantly.
  • All-Weather Stable Sealing, No High-Temperature Pressure Drop: Upgraded high and low temperature dual-resistant composite oil seal adapts to seasonal temperature changes and long-hour continuous operation of CAT medium excavators. It solves the common fault of slow pressure drop after long-term medium-load operation, ensuring stable pressure output in full working conditions.

FAQ

  • Q1: Which exact models does VRD63 support?
  • A: VRD63 is an exclusive dedicated model for CAT120 / CAT312D2 (12–13 ton) medium earthwork excavators, perfectly matching the original 12.9-ton weight and 4.25L displacement main pump hydraulic system. It is not applicable to micro excavators or other tonnage CAT models.
  • Q2: Why is VRD63 far more suitable for CAT120 than SBS/TM/SG series?
  • A: SBS series are high-pressure heavy-duty pumps for large tonnage, with excessive pressure leading to stiff control; TM/SG series are tuned for ultra-micro excavators with mismatched low-pressure parameters, causing distorted operation feel. VRD63 adopts exclusive CAT120 factory data calibration with perfectly matched pressure and flow, uniquely restoring the original control logic of CAT 12-ton medium machines.
  • Q3: What core problems can VRD63 solve for CAT120?
  • A: It thoroughly solves typical aging faults of CAT120/CAT312D2: idle pressure floating, unbalanced compound action sensitivity, slow medium-load hydraulic response, and slight pressure attenuation after long-term high-temperature continuous earthwork.
  • Q4: Does installation require any on-site modification?
  • A: No modification is needed. VRD63 fully replicates the original OEM installation size, spline and pipeline interface of CAT120/CAT312D2, supporting direct plug-and-play lossless replacement with zero installation error.
  • Q5: What is the professional maintenance standard for VRD63?
  • A: Use standard medium-excavator anti-wear hydraulic oil, replace hydraulic filter elements regularly to ensure oil cleanliness. Avoid long-term extreme overload operation. Keep the pilot pressure stably maintained at 24–28bar to ensure consistent original-machine control performance.

warehouse

We have built four spare parts warehouses in Xuzhou, Jining, Kunshan and Changsha to provide customers from all over the world with a variety of high-quality spare parts. We can basically ship self-provided spare parts within three days after confirming the order. If the spare parts need to be adjusted or processed, they will be shipped within 7-30 days.

our warehouse

our warehouse

Pack and ship

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