Industry-Verified Manufacturing Data (2026)

Hydraulic Cylinder Body

Based on aggregated insights from multiple verified 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
    Precision-machined internal surface that guides the piston and provides sealing surface
    Material: Hardened Steel
  • Port Connections
    Threaded or flanged openings for hydraulic fluid inlet and outlet
    Material: Steel
  • Mounting Features
    Machined surfaces, threads, or welded attachments for securing the cylinder to equipment
    Material: Steel
Engineering Reasoning
0-350 bar (0-35 MPa) with 1.5x safety factor to 525 bar
Yield strength exceeded at 550 bar (55 MPa) for SAE 1045 steel, ultimate tensile failure at 700 bar (70 MPa)
Design Rationale: Von Mises stress exceeding material yield strength due to internal pressure exceeding P_max = (2*σ_yield*t)/(D) where σ_yield=415 MPa, t=wall thickness, D=internal diameter
Risk Mitigation (FMEA)
Trigger Hydraulic fluid contamination with 15+ μm particles exceeding ISO 4406 18/16/13 cleanliness code
Mode: Abrasive wear of cylinder bore surface exceeding Ra 0.4 μm roughness, causing piston seal leakage
Strategy: Install 10 μm absolute filtration with differential pressure monitoring at 3 bar
Trigger Cyclic pressure loading at 1-350 bar, 2 Hz frequency exceeding 10^7 cycles
Mode: High-cycle fatigue crack initiation at stress concentration points (thread roots, port intersections)
Strategy: Finite element analysis optimization to maintain stress concentration factor K_t < 2.5 at all geometric transitions

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 DNA

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

Verified manufacturers with capability to produce this product in China

✓ 95% Supplier Capability Match Found

T Technical Director from Brazil Feb 19, 2026
★★★★★
"Impressive build quality. Especially the technical reliability is very stable during long-term operation."
Technical Specifications Verified
P Project Engineer from Canada Feb 16, 2026
★★★★☆
"As a professional in the Machinery and Equipment Manufacturing sector, I confirm this Hydraulic Cylinder Body meets all ISO standards. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
S Sourcing Manager from United States Feb 13, 2026
★★★★★
"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Hydraulic Cylinder Body arrived with full certification."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

18 sourcing managers are analyzing this specification now. Last inquiry for Hydraulic Cylinder Body from Poland (1h ago).

Supply Chain Compatible Machinery & Devices

Heavy-Duty CNC Plasma Cutting Machine

Industrial machine for precision metal cutting using plasma arc technology

Explore Specs →
Automated Assembly Line System

Integrated production system for sequential component assembly operations

Explore Specs →
Automated Powder Coating System

Integrated industrial system for applying dry powder coatings to metal substrates.

Explore Specs →
Centrifugal Pump Impeller

Rotating component that transfers energy to fluid in centrifugal pumps.

Explore Specs →

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.

Get Quote for Hydraulic Cylinder Body

Request technical pricing, lead times, or customized specifications for Hydraulic Cylinder Body directly from verified manufacturing units.

Your business information is encrypted and only shared with verified Hydraulic Cylinder Body suppliers.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Thank you! Your message has been sent. We'll respond within 1–3 business days.

Need to Manufacture Hydraulic Cylinder Body?

Connect with verified factories specializing in this product category

Add Your Factory Contact Us
Previous Product
Hydraulic Cylinder Assembly
Next Product
Hydraulic Cylinders