Structured Manufacturing Data (2026)

Hydraulic Cylinder Body

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Hydraulic Cylinder Body used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Hydraulic Cylinder Body is characterized by the integration of Cylinder Bore and Port Connections. In industrial production environments, manufacturers listed on CNFX commonly emphasize Carbon Steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The main structural housing of a hydraulic cylinder that contains the piston and hydraulic fluid.

Product Specifications

Technical details and manufacturing context for Hydraulic Cylinder Body

Definition
The hydraulic cylinder body is the primary structural component of a hydraulic cylinder, serving as the pressure vessel that houses the piston, rod, and hydraulic fluid. It provides the mounting interface, contains the internal bore for piston movement, and withstands the high pressures generated during operation. Within linkage and hydraulic cylinder systems, it forms the stationary outer shell that enables the linear motion of the internal components.
Working Principle
The cylinder body provides a sealed, pressurized chamber where hydraulic fluid is directed to create force. Pressure applied to the fluid within the body acts upon the piston surface area, converting hydraulic energy into mechanical force and linear motion through the piston rod.
Common Materials
Carbon Steel, Alloy Steel, Stainless Steel
Technical Parameters
  • Bore diameter (internal diameter of the cylinder body) (mm) Standard Spec
Components / BOM
  • Cylinder Bore Part
    Precision-machined internal surface that guides the piston and provides sealing surface
    Material: Hardened Steel
  • Port Connections Part
    Threaded or flanged openings for hydraulic fluid inlet and outlet
    Material: Steel
  • Mounting Features Part
    Machined surfaces, threads, or welded attachments for securing the cylinder to equipment
    Material: Steel

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Hydraulic Cylinder Body.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to 300 bar (4350 psi)
other spec: Flow Rate: 0-100 L/min, Slurry Concentration: Not recommended for abrasive slurries
temperature: -40°C to 120°C
Media Compatibility
✓ Hydraulic Oil (ISO VG 32-68) ✓ Water-Glycol Hydraulic Fluids ✓ Phosphate Ester Fluids
Unsuitable: Highly corrosive chemicals (e.g., strong acids, chlorinated solvents)
Sizing Data Required
  • Bore Diameter (mm/in)
  • Stroke Length (mm/in)
  • Required Force/Thrust (N/lbf)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal leakage
Cause: Wear from contamination (particles in hydraulic fluid), improper installation, or material degradation from incompatible fluids or high temperatures
Cylinder scoring/galling
Cause: Misalignment causing side loading, lack of lubrication, or ingress of abrasive contaminants leading to metal-to-metal contact
Maintenance Indicators
  • Visible hydraulic fluid leakage around rod seals or cylinder body
  • Audible knocking or scraping sounds during operation indicating internal contact or cavitation
Engineering Tips
  • Implement strict fluid cleanliness standards (ISO 4406 code monitoring) and use proper filtration to prevent contaminant-induced wear
  • Ensure correct cylinder alignment during installation and use rod wipers/scrapers to prevent external contaminant ingress

Compliance & Manufacturing Standards

Reference Standards
ISO 6020-2: Hydraulic fluid power - Mounting dimensions for single rod cylinders, series 250 bar ANSI/(NFPA) T3.6.7: Fluid power - Cylinders - Bore and rod area ratios DIN ISO 3320: Fluid power systems and components - Cylinder bores and piston rod diameters - Metric series
Manufacturing Precision
  • Bore diameter: H8 tolerance per ISO 286-2
  • Surface finish: Ra ≤ 0.4 μm for sealing surfaces
Quality Inspection
  • Pressure testing: 1.5x maximum working pressure for 2 minutes
  • Dimensional verification: CMM measurement of critical features

Factories Producing Hydraulic Cylinder Body

Manufacturer profiles with relevant production capability in China

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are best for hydraulic cylinder bodies in heavy machinery?

Carbon steel offers strength and cost-effectiveness for general use, alloy steel provides enhanced durability for high-pressure applications, and stainless steel is ideal for corrosive environments or food-grade equipment.

How do mounting features affect hydraulic cylinder body installation?

Mounting features like clevis, flange, or trunnion designs determine how the cylinder integrates with machinery, affecting alignment, load distribution, and maintenance accessibility in equipment manufacturing.

Can hydraulic cylinder bodies be customized for specific bore sizes?

Yes, cylinder bores can be precision-machined to exact diameters and surface finishes to match piston requirements, ensuring optimal sealing and performance in hydraulic systems.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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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