Structured Manufacturing Data (2026)

Industrial-Grade Hydraulic Cylinder Piston Rod

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Industrial-Grade Hydraulic Cylinder Piston Rod 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 Industrial-Grade Hydraulic Cylinder Piston Rod is characterized by the integration of Rod Body and Hard Chrome Layer. In industrial production environments, manufacturers listed on CNFX commonly emphasize Chromium-molybdenum alloy steel construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Precision-ground steel rod for hydraulic cylinder actuation

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Product Specifications

Technical details and manufacturing context for Industrial-Grade Hydraulic Cylinder Piston Rod

Definition

A high-strength, precision-ground cylindrical rod that serves as the primary force transmission component in hydraulic cylinders. Manufactured from alloy steel with specialized surface treatments to withstand extreme pressure cycles and environmental conditions. This critical part converts hydraulic fluid pressure into linear mechanical motion, enabling precise control in industrial machinery. Its dimensional accuracy and surface finish directly impact cylinder efficiency, seal longevity, and overall system reliability.

Working Principle

Transmits hydraulic pressure as linear force through sealed piston assembly

Common Materials

Chromium-molybdenum alloy steel, Hard chrome plating

Technical Parameters

Critical for seal performance and wear resistance (Ra μm) Standard Spec
Precision ground diameter specification (mm) Standard Spec

Components / BOM

Rod Body Part
Primary structural element transmitting linear force

Material: Alloy steel bar stock
Hard Chrome Layer Part
Corrosion protection and wear surface

Material: Electrodeposited chromium
Threaded End Optional Part
Attachment point for piston or external linkage

Material: Same as rod body

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Industrial-Grade Hydraulic Cylinder Piston Rod.

Industrial Ecosystem & Supply Chain Structure

Complementary Systems

Downstream Applications

Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits

hardness:	HRC 45-55
pressure:	Up to 5000 psi (345 bar)
temperature:	-40°C to 200°C
surface finish:	Ra ≤ 0.4 μm

Media Compatibility

✓ Hydraulic oil (mineral-based) ✓ Water-glycol hydraulic fluids ✓ Phosphate ester fluids

Unsuitable: High-concentration acidic or caustic chemical environments

Sizing Data Required

Required stroke length (mm)
Maximum operating force (kN)
Mounting configuration (clevis, flange, trunnion)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause

Abrasive wear and scoring

Cause: Contaminated hydraulic fluid containing particulate matter (dirt, metal shavings) or inadequate filtration, leading to accelerated wear on the rod surface and seal degradation.

Corrosion and pitting

Cause: Exposure to moisture, corrosive environments, or incompatible hydraulic fluids, combined with insufficient surface protection (e.g., chrome plating damage), resulting in surface deterioration and seal failure.

Maintenance Indicators

Visible scoring, scratches, or pitting on the piston rod surface during inspection
Audible hissing or increased external hydraulic fluid leakage around the rod seal during operation

Engineering Tips

Implement strict hydraulic fluid cleanliness protocols with regular filtration and contamination monitoring to prevent abrasive wear
Apply protective rod boots or wipers, and ensure proper chrome plating maintenance with periodic inspections for environmental damage

Compliance & Manufacturing Standards

Reference Standards

ISO 6020-2: Hydraulic fluid power - Mounting dimensions for single rod cylinders, 16 MPa series ANSI/(NFPA) T3.6.7: Fluid power - Cylinders - Bore and rod dimensions and mounting dimensions DIN 24554: Hydraulic cylinders; piston rods, dimensions

Manufacturing Precision

Rod diameter tolerance: h9 (e.g., 50mm rod: -0.062mm to 0mm)
Surface roughness: Ra ≤ 0.4 μm for chrome-plated rods

Quality Inspection

Hardness testing (Rockwell C scale) to verify surface hardening
Magnetic particle inspection for subsurface defects in rod material

Factories Producing Industrial-Grade Hydraulic Cylinder Piston Rod

Manufacturer profiles with relevant production capability in China

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

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

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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Electric motor that provides rotational power to drive the blending mechanism in pharmaceutical powder blending equipment

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Vision System

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Coating Pan

A rotating vessel used to apply uniform coating layers to pharmaceutical tablets through controlled spraying and drying processes.

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Spray System

A precision fluid delivery subsystem that atomizes and applies coating solutions onto pharmaceutical tablets within an automated coating system.

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Frequently Asked Questions

What are the benefits of hard chrome plating on hydraulic piston rods?

Hard chrome plating provides superior corrosion resistance, reduces friction for smoother operation, extends service life through enhanced wear resistance, and maintains dimensional stability in demanding industrial environments.

What straightness tolerance do your industrial hydraulic piston rods maintain?

Our precision-ground industrial hydraulic piston rods maintain tight straightness tolerances measured in mm/m to ensure optimal performance, prevent binding in cylinder assemblies, and deliver consistent actuation in general-purpose machinery applications.

Why use chromium-molybdenum alloy steel for hydraulic cylinder rods?

Chromium-molybdenum alloy steel offers exceptional tensile strength (measured in MPa) and surface hardness (measured in HRC), providing the durability needed for high-pressure hydraulic systems while maintaining machinability for threaded ends and other customizations.

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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