EX70 Pin Cover for Excavator spare parts

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  • EX70 Pin Cover for Excavator spare parts

Short Description:

The EX70 Main Valve Pin Cover is an upgraded thickened dust‑proof protective cap specially customized for the spool pin positions of Hitachi EX70 original multi‑way main control valves, matching the 7‑ton small‑size excavator EX70.

Product Detail

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description

The EX70 Main Valve Pin Cover is produced from upgraded thickened high‑density toughened composite material, specially optimized for the working features of EX70 main valve with frequent vibration and frequently‑switched light‑to‑medium loads. Compared with OEM thin‑wall ordinary caps, wall thickness and structural toughness are comprehensively improved, delivering excellent tear resistance, impact resistance and anti‑aging stability. It retains stable elasticity under continuous job‑site vibration, mud soaking and dust abrasion without hardening, deformation, cracking or detachment. The compound is blended with high‑efficiency anti‑UV and anti‑aging additives, and the surface is treated with reinforced anti‑fouling and anti‑scouring technology, adapting to harsh outdoor conditions including long‑term sunlight exposure, mud accumulation and gravel impact. The integrated thickened full‑wrap structure perfectly fits EX70 spool‑pin clearances, achieving zero‑gap tight fitting and full‑range sealing.

product parameters

Product Model: EX70 Main Valve Pin Cover (Small‑size Excavator Thickened Heavy‑duty Version)
Product Type: Small Excavator Multi‑way Main‑control‑valve Spool‑pin Dust‑proof Protective Cap
Applicable Equipment: Hitachi EX70 7‑ton small‑size excavator
Structural Feature: Thick‑wall Reinforced Integral Molding, High‑elastic Tight Fit, Tear‑resistant, Impact‑resistant, Long‑term Anti‑aging, Full‑sealing Dust‑and‑mud Proof
Core Material: Upgraded Thickened High‑toughness Modified Rubber‑plastic Composite Material
Working Characteristics: Vibration‑resistant, Wear‑resistant, Corrosion‑resistant, UV‑resistant, No Deformation or Falling‑off Under Long‑term Municipal & Earth‑moving Operation
Core Function: Isolate Construction Dust, Muddy Water and Gravel Debris, Protect EX70 Main‑valve Precision Pin‑shaft Assembly, Stabilize Hydraulic Response, Reduce Jitter and Drifting Malfunctions
Applicable Working Conditions: Municipal Works, Housing Foundation Excavation, Landscaping Renovation, Pipeline Trenching, Small Quarry Operation, General Earth‑moving Jobs
Supporting Matching Parts: EX70 original multi‑way main control valve, spool pin shaft, valve‑body assembly

advantages

  • Model‑specific EX70 Dimensional Development: Precisely engineered according to EX70 main‑valve OEM mounting specs, with reinforced snap‑on construction and stable clamping force. Zero‑gap fit after installation, effectively blocking dust, muddy water and fine gravel from entering spool‑pin gaps.
  • Upgraded High‑toughness Thickened Compound: Adopts thickened composite formulation, greatly improving anti‑aging, anti‑fatigue and tear‑resistance compared with original ordinary caps, adapting to long‑term frequent vibration and complex municipal‑site conditions.
  • Full‑range Sealing for Reliable Valve Protection: Thickened full‑wrap geometry fully covers spool‑pin mating clearances, retains internal hydraulic grease over time, keeps valve‑body precision interfaces clean and lubricated, and mitigates frequent small faults such as slow response and work‑device jitter.
  • Strong Adaptability to Varied Site Conditions: Optimized anti‑scouring, anti‑corrosion and anti‑UV performance, resisting outdoor sun exposure, mud soaking and construction‑gravel impact, suitable for typical municipal and general earth‑moving scenarios.
  • Tool‑free Quick‑swap Design: Standard snap‑on plug‑and‑play without modification, fast on‑site replacement, effectively cutting equipment downtime and raising job‑site productivity.
  • Lower Routine Maintenance Expense: Reliably guards EX70 main‑valve spool and pin‑shaft vulnerable parts, prevents premature valve‑body sticking and damage, reduces frequent minor faults and costly repair losses, and lowers overall operating cost for this compact excavator.

FAQ

  • Q1: Is this pin cover dedicated for EX70 excavator?
  • A: Yes, this is an exclusive upgraded thickened variant specially developed for Hitachi EX70 original main control valve. It has model‑specific precise dimensions and cannot be interchanged with other Hitachi series or other‑brand valve pin covers.
  • Q2: Can I install it on other small Hitachi excavators?
  • A: Not universally applicable. This pin cover is customized for the unique structural dimensions of EX70 main‑valve pin shaft. Other small Hitachi models carry different valve‑body structures; mixed installation will result in poor fitting, dust ingress and easy detachment.
  • Q3: When should I replace the EX70 pin cover?
  • A: Replace promptly when the original protective cap shows aging hardening, cracking, elastic failure, loose clamping or frequent falling‑off after long‑term operation.
  • Q4: Does installation require drilling or modification?
  • A: No drilling, modification or commissioning needed. It matches OEM standard snap‑on size, plug‑and‑play, firm and tight after mounting, and stays secured under prolonged working vibration.
  • Q5: How can I extend service life of the EX70 pin cover?
  • A: Regularly wipe off surface dust and mud stains, avoid long‑term heavy‑mud immersion, keep valve compartment clean and ventilated, and follow scheduled hydraulic‑oil renewal and greasing to maximize service life of both pin cover and valve‑body assembly.

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

Pack and ship


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