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Excavator Hitachi Ex120 Ex100 Rubber Coupling 22A Hydraulic Pump Flexible Rubber Coupling

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Hydraulic Pump Connection: A flexible rubber coupling designed to connect hydraulic pumps in excavators (Hitachi Ex120/Ex100 series) and compatible Kobelco models, ensuring smooth power transmission while absorbing vibrations.
  • Sealing & Protection: Features a robust rubber construction with a central hub and protruding elements to create a secure seal, preventing dust, moisture, and contaminants from entering hydraulic systems.

Key features

  • 1. Material Technology

  • With corrosion-resistant rubber material, ensure durability in harsh construction environments. The flexible rubber construction provides ~20% better resistance to wear and tear compared to rigid plastic alternatives*.

  • 2. Interactive Design

  • With a robust industrial design featuring a central hub and multiple protruding elements, achieve precise alignment and secure mounting for seamless integration into hydraulic systems. Reduces installation errors by up to 30% compared to generic couplings*.

  • 3. Performance Parameters

  • With high-pressure tolerance (up to 5000 psi), handle demanding hydraulic applications efficiently. Outperforms standard couplings in maintaining consistent performance under heavy loads*.

  • 4. Scenario Solutions

  • Designed for heavy machinery compatibility (Kobelco/Hitachi), this coupling ensures reliable operation in extreme temperatures (-20°C to 80°C) and dusty/moist environments. Ideal for continuous commercial use with minimal downtime*.

  • 5. Certification Standards

  • Complies with industrial safety and durability standards (e.g., ISO/SAE specifications), ensuring compatibility and longevity in construction machinery. Meets or exceeds industry benchmarks for hydraulic component reliability*.

Product details

Excavator Hitachi Ex120 Ex100 Rubber Coupling 22A Hydraulic Pump Flexible Rubber Coupling

The Excavator Hitachi Ex120 Ex100 Rubber Coupling 22A is a high-performance hydraulic pump coupling designed for heavy-duty construction machinery. Crafted from durable rubber, this coupling ensures seamless fluid transfer and vibration absorption in demanding environments. Compatible with Kobelco and Hitachi excavator models, it provides a secure seal to prevent leaks and protect against dust and moisture.

Technical specifications

FeatureSpecificationApplication Scenario
MaterialRubberWithstands extreme temperatures and abrasion in construction sites.
CompatibilityKobelco, Hitachi (Ex120/Ex100)Ensures precise fitment for excavator hydraulic systems.
DesignCentral hub with protruding sealsPrevents fluid leakage in high-pressure hydraulic applications.
Pressure Rating200 bar (Base Model)Supports standard hydraulic operations in excavators.

Customization guide

Adjustable parameters include size (to fit different connector diameters) and pressure rating (up to 300 bar) to meet specialized needs such as high-altitude or extreme-temperature operations.

Get inspired

With its robust rubber construction and brand-specific compatibility, this coupling is ideal for maintaining hydraulic system integrity in excavators operating in harsh terrains.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Pressure Rating200 bar+15% (230 bar)+30% (260 bar)*
Temperature Range-20°C to 80°CExtended to 100°C-30°C to 120°C
Durability5,000 cycles6,000 cycles7,500 cycles

Supplier's note

  1. Technical Breakthroughs:

    • Material Innovation: Enhanced rubber formulation resists ozone and UV degradation, extending lifespan by 20% compared to standard couplings.
    • Pressure Tolerance: The Pro Model’s 260 bar rating enables use in high-stress applications like rock excavation.
    • Temperature Adaptability: The Advanced Model’s 100°C tolerance suits tropical climates, reducing downtime.
  2. Version Selection Guide:

    • Base Model: Ideal for standard excavator maintenance in moderate environments (e.g., urban construction).
    • Advanced Model: Recommended for heavy-duty operations (e.g., mining) requiring prolonged exposure to high temperatures.
    • Pro Model: Best suited for extreme conditions (e.g., Arctic drilling) where peak pressure and durability are critical.

Example: With the Pro Model’s 260 bar pressure rating, operators can safely handle high-viscosity fluids in deep-earth excavation projects, ensuring system reliability.

Frequently asked questions

  • Which rubber coupling suits Hitachi Ex120/Ex100 excavators for heavy-duty operations?

  • How to clean and maintain a Hitachi Ex100 hydraulic pump coupling?

  • Rubber vs Metal: Which coupling material is better for Kobelco excavators?

  • Can I order a custom 22A part number for Hitachi excavator couplings?

  • Does the Hitachi Ex120 coupling prevent dust and moisture ingress?

  • Which coupling fits Kobelco excavators with hydraulic pump systems?

  • How should I store Hydraulic Pump Flexible Rubber Couplings long-term?

  • Can I get a customized seal kit for non-standard connector sizes?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material QualityHeavy machinery maintenanceASTM D2000-23 Compliance (Grade 1 for Base, Grade 2 for Advanced)▲▲ Base: 20% stronger than industry standard rubber (ISO 37). Advanced: 40% more durable.Advanced versions may require specialized storage.
Noise LevelUrban construction sites45 dBA (Base) / 40 dBA (Advanced) (quieter than a refrigerator hum)▲ Base: 10% quieter than industry standard (50 dBA). Advanced: 20% quieter.Advanced models may have slightly higher cost.
Chemical ResistanceHarsh chemical environmentsPasses ASTM F739 (30min+ exposure to 5 chemicals for Base; 60min+ to 10 chemicals for Advanced)▲▲ Advanced: 2x longer chemical resistance than industry standard.Base version may degrade faster in extreme chemical exposure.
FlexibilityCompact machinery installationBend Radius: 12cm (Base) / 10cm (Advanced) (ISO 37 verified)▲ Base: 20% more flexible than industry standard (15cm). Advanced: 33% more flexible.Over-bending Advanced models may reduce lifespan.
Temperature RangeArctic/tropical construction projects-30°C to 100°C (Base) / -40°C to 120°C (Advanced) (ASTM D2000)▲▲ Advanced: Operates in extreme temps (-40°C to 120°C), outperforming industry standard (-20°C to 80°C).Base may fail in extreme cold/hot conditions.
Mounting CompatibilityMulti-brand excavator repairsUniversal thread adapter (Base) / Customizable thread (Advanced, ISO 2768)▲ Base: Fits Kobelco/Hitachi models without adapters. Advanced: Customizable for rare brands.Base may require adapters for non-standard connectors.

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