INDUSTRY COMPONENT

Leather Seal Body

Leather seal body for hydraulic piston sealing in industrial machinery

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Component Specifications

Definition
A precision-engineered leather seal body designed specifically for hydraulic piston applications, providing effective fluid containment and pressure maintenance in hydraulic systems. This component serves as the structural foundation for sealing elements in leather hydraulic piston seals, ensuring proper alignment and compression against mating surfaces.
Working Principle
The leather seal body functions by providing a stable, compressible structure that maintains consistent contact pressure between the sealing element and the piston/cylinder interface. It deforms under hydraulic pressure to create a tight seal while allowing controlled movement of the piston rod, preventing fluid leakage and maintaining system pressure.
Materials
Premium-grade vegetable-tanned bovine leather with specific density (0.8-0.9 g/cm³), thickness tolerance ±0.1mm, treated with hydraulic fluid-resistant impregnation compounds. Leather must meet ASTM D1517 standards for industrial leather.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Hardness70-80 Shore A
Diameter Range10-200 mm
Compression Set<15% after 24h at 70°C
Pressure RatingUp to 25 MPa
Temperature Range-20°C to +80°C
Fluid CompatibilityMineral oils, HFA, HFB, HFC fluids

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards
ISO 3601-3, DIN 3760, ASTM D1517, SAE J515

Parent Products

This component is used in the following industrial products

Leather Hydraulic Piston Seal

This precision-engineered leather seal is designed specifically for hydraulic piston applications.

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Engineering Analysis

Risks & Mitigation
  • Leather degradation from incompatible fluids
  • Compression set over time reducing sealing force
  • Temperature extremes causing hardening or softening
  • Improper installation leading to premature failure
FMEA Triads
Trigger: Exposure to incompatible hydraulic fluids
Failure: Swelling, cracking, or disintegration of leather material
Mitigation: Verify fluid compatibility before installation and use appropriate impregnation treatments
Trigger: Excessive temperature operation
Failure: Hardening (low temp) or softening (high temp) leading to seal failure
Mitigation: Maintain operating temperature within specified range and monitor system temperature
Trigger: Improper installation compression
Failure: Uneven wear, leakage, or premature failure
Mitigation: Follow manufacturer installation guidelines and use proper installation tools

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±0.1mm on critical dimensions, surface finish Ra ≤ 1.6μm
Test Method
ISO 3601-3 for hydraulic seals, pressure testing per SAE J515, leakage testing at rated pressure for 24 hours

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Leather Seal Body

Manufacturer profiles associated with Leather Seal Body.

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Frequently Asked Questions

What is the maximum pressure rating for leather seal bodies?

Leather seal bodies typically handle up to 25 MPa (3625 psi) when properly installed in compatible hydraulic systems.

How does temperature affect leather seal performance?

Optimal performance occurs between -20°C to +80°C. Outside this range, leather may harden or soften, affecting sealing effectiveness.

Can leather seals be used with all hydraulic fluids?

They work best with mineral-based oils and certain synthetic fluids (HFA, HFB, HFC). Compatibility should be verified for specific fluid types.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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