JSM140 Hydraulic Pump parts for Excavator spare parts

JSM140 Hydraulic Pump parts for Excavator spare parts Featured Image
  • JSM140 Hydraulic Pump parts for Excavator spare parts
  • JSM140 Hydraulic Pump parts for Excavator spare parts
  • JSM140 Hydraulic Pump parts for Excavator spare parts

Short Description:

JMV147 hydraulic pump spare parts are high-precision heavy-duty aftermarket repair accessories for JMV series closed-loop variable piston travel motors, positioned as a mid-to-large tonnage mainstream heavy-duty model, perfectly filling the performance gap between medium-tonnage JMF53 and large-tonnage JMF151.

Product Detail

Product Tags

description

In daily conventional earthwork and municipal construction, the JSM140 motor endures frequent start-stop switching, repeated road vibration impact and long-duration continuous oil temperature scouring, which easily causes slight friction pair wear, micro surface scratches and gradual volumetric efficiency attenuation, resulting in insufficient walking power, delayed linkage response, inconsistent left-right speed and minor jitter deviation during medium-load operation. JSM140 hydraulic pump spare parts adopt targeted medium-duty optimization for conventional engineering working conditions. Core friction pair components adopt high-rigidity alloy steel matrix + uniform-density wear-resistant copper alloy composite structure, with balanced wear resistance and impact resistance, fully adapting to frequent cyclic operation of medium-sized engineering machinery. The cylinder block undergoes integral heat treatment and multiple cyclic stress relief treatments to eliminate internal residual processing stress, matched with ultra-precision mirror lapping to form stable micron-level clearance fit with the valve plate, effectively restraining internal leakage growth caused by long-term medium-pressure and medium-temperature continuous operation.

product parameters

Product Model: JSM140 Hydraulic Pump Spare Parts
Product Type: Medium-Displacement Travel Motor Rotating-Group Wearing Parts & Conventional Engineering Maintenance Components
Applicable Equipment: 18–25 Ton Domestic & Imported Medium-Sized Engineering Excavators, Municipal & Earthwork Construction Machinery Travel Drive Systems
Included Components: High-stability wear-resistant cylinder block, balanced torque piston-shoe assemblies, upgraded medium-high-pressure wear-resistant valve plate & anti-fatigue retainer plate, high-rigidity integrated anti-torsion center shaft, full medium-pressure temperature-resistant seal kit, precision flow control valve core and all auxiliary wearing parts
Core Material: High-stability wear-resistant alloy steel, uniform-density nano wear-resistant copper alloy composite layer, temperature-resistant aging-proof composite seal material
Processing Craft: Integral vacuum heat treatment, multiple cyclic stress relief, ultra-precision mirror super-finishing grinding, OEM standard micron-level tolerance
Core Functions: Replace worn failure components, restore original motor volumetric efficiency, stabilize medium-load walking torque and synchronous speed, eliminate medium-load jitter, unilateral speed deviation and high-temperature slow oil leakage faults
Applicable Scenarios: Medium-duty travel motor daily fault repair, slight friction pair wear replacement, full motor overhaul, long-term conventional construction equipment performance recovery
Matching Parts: Fully compatible with original JSM140 travel motor housing, pressure control mechanism and complete assembly accessories

advantages

  • Standard OEM Micron Precision, 100% Universal Interchangeability: All JSM140 spare parts are manufactured strictly in accordance with OEM micron-level dimensional, flatness and tolerance standards. No on-site grinding or modification is required, with high fitting accuracy, fully matching the assembly structure and operating parameters of original medium-duty travel motors.
  • Engineering Stable Wear Resistance, Constant Medium-Load Performance: Core friction pairs adopt balanced alloy composite reinforcement technology, adapting to long-term frequent medium-load operation of municipal and earthwork machinery. It maintains stable volumetric efficiency and consistent torque output, effectively avoiding gradual power attenuation caused by daily cyclic wear.
  • High Cost-Performance, Reduce Daily Construction Loss: Support flexible single-piece replacement for local slight wear and full kit replacement for overall component aging. Avoid high-cost integral motor replacement, greatly reducing daily operation and maintenance costs and construction downtime losses of 18–25 ton medium-sized excavators.
  • Full-Coverage Accessory System, One-Stop Daily Overhaul: Completely covers core rotating group wearing parts and medium-pressure vulnerable sealing components, fully adapting to daily maintenance, conventional fault repair and complete machine overhaul of JSM140 medium-duty travel motors, realizing one-stop professional supporting maintenance.
  • Strict Batch Inspection, Stable Consistent Quality: Each batch of spare parts undergoes precision dimensional verification, flatness testing, hardness sampling and temperature cycle impact simulation to ensure uniform batch quality, guaranteeing stable and durable medium-load operation performance after equipment repair.

FAQ

  • Q1: What common faults can JSM140 pump spare parts solve?
  • A: It effectively fixes typical medium-duty faults of JSM140 travel motor, including gradual internal leakage, insufficient medium-load walking torque, weak climbing ability, sluggish hydraulic response, unilateral speed difference, slight walking jitter, abnormal operating noise and long-term high-temperature slow oil seepage.
  • Q2: What equipment does JSM140 apply to?
  • A: Mainly suitable for 18–25 ton various brands of medium-sized engineering excavators, widely used in municipal, earthwork and conventional construction scenarios, perfectly matching original JSM140 medium-duty travel motor assembly and system parameters.
  • Q3: How to choose single parts or full overhaul kit?
  • A: For motors with short service life and only local slight wear, select single-piece targeted replacement; for motors with long-term frequent construction operation, obvious power attenuation and overall aging, replace the full rotating group kit to restore original medium-load walking performance.
  • Q4: What are the key overhaul specifications for JSM140 motor?
  • A: Thoroughly clean internal wear powder and micro impurities, replace all aging medium-pressure temperature-resistant seals, strictly control friction pair assembly clearance and flatness fitting, and conduct walking test and precise debugging after assembly to ensure synchronous left and right speed and stable torque output.
  • Q5: How to extend JSM140 travel motor service life?
  • A: Keep hydraulic oil clean and replace filter elements regularly; avoid long-term continuous heavy-load overload operation; control system oil temperature to prevent oil deterioration and premature seal aging failure.

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.

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our warehouse

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