365-1283 Hydraulic Cylinder Seal Kit 3651283 for Mining Excavator Backhoe Loader

Short Description:

Hydraulic Cylinder Seal Kit 365-1283 – Precision Seals for Mining Excavators, Drilling Rigs, Backhoe Loader Parts Repair, and High-Abrasion Environments Product Overview The Hydraulic Cylinder Seal K


  • Application: Mining Excavator Backhoe Loader etc
  • Part number: 365-1283, 3651283
  • Sizes: Standard or Custom
  • Compatible Brand: C-A-T
  • Price: Negotiable
  • Payment Terms: L/C, T/T, Paypal, Western Union, Bank Transfer and more
  • Packaging: PP Bag Inside,Carton Box Outside or Custom
  • Delivery Time: 3-7 Days

Product Detail

Product Tags

Hydraulic Cylinder Seal Kit 365-1283 – Precision Seals for Mining Excavators, Drilling Rigs, Backhoe Loader Parts Repair, and High-Abrasion Environments


Product Overview

The Hydraulic Cylinder Seal Kit 365-1283 is engineered for ultra-demanding hydraulic systems in mining excavators, rock drilling rigs, and tunnel boring machines. Designed to withstand extreme abrasion, high-pressure shocks, and prolonged exposure to silica dust, this kit ensures leak-free operation in the harshest mining and quarrying conditions, minimizing downtime and maintenance costs.


Seal Kit 365-1283 Technical Specifications

Parameter Specification
Compatible Equipment Mining Excavators (CAT 374F, Komatsu PC4000), Drilling Rigs (Sandvik DR540)
Pressure Range 0–45 MPa (6,525 PSI)
Temperature Tolerance -20°C to +130°C (-4°F to +266°F)
Dynamic Seals Material Abrasion-Resistant Polyurethane (AU) + Kevlar® Fiber Reinforcement
Static Seals Material Perfluoroelastomer (FFKM) for Acid/Chemical Resistance
Guide Rings Material Carbon-Fiber-Reinforced PTFE (Ultra-Low Wear Rate)
Certifications ISO 10766 (Hydraulic Cylinder Seals), MSHA Compliance
Compatibility Boom/Arm Cylinders, Drill Head Actuators, Rock Crusher Hydraulics

365-1283 Seal Kit Components & Functions

Component Function
1. Ultra-High-Pressure Piston Seal Kevlar-reinforced AU resists rock particle abrasion in 45 MPa mining cylinders.
2. Quad-Lip Rod Seal Four sealing layers prevent leakage in high-vibration drilling rigs.
3. Rock-Dust Wiper System Multi-stage scraper with carbide blades removes hardened silica deposits.
4. Heavy-Load Guide Rings Carbon-fiber PTFE handles 20+ ton side loads in excavator arm pivots.
5. Chemical-Resistant O-Rings FFKM seals withstand hydraulic fluids with acidic additives (pH 3–12).
6. Anti-Extrusion Collars Seal Titanium-reinforced collars prevent seal deformation under impact loads.

Key Features & Benefits

✅ Mining-Grade Durability: 3x longer lifespan than standard seals in rock-crushing applications.
✅ Acid/Chemical Resistance: FFKM static seals compatible with phosphate-ester and water-glycol fluids.
✅ Precision Engineering: CNC-machined to match CAT 374F and Komatsu PC4000 OEM specifications.
✅ Containment System: Wiper traps 98% of abrasive particles, reducing cylinder wear by 70%.

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