Rod Assembly for Articulation Cylinders

Product Specifications

Technical details and manufacturing context for Rod Assembly

Definition

The rod assembly is a critical component within articulation cylinders, serving as the load-bearing element that connects the piston to external machinery. It transmits linear force from the hydraulic or pneumatic pressure acting on the piston to perform work, such as lifting, pushing, or positioning loads in industrial equipment. In articulation cylinders specifically, it enables the pivotal movement between connected sections. The rod assembly typically consists of a rod, often chrome-plated steel, with appropriate end connections and surface treatments to ensure durability and performance. It operates within a cylinder barrel, guided by bearings or bushings, and sealed to prevent leakage. The rod's surface hardness and finish are critical for wear resistance and smooth operation. The assembly is designed to meet specific application requirements, including bore diameter, stroke length, operating pressure, and temperature ranges. It is essential to verify that the selected rod assembly matches the cylinder's specifications and the application's demands. The rod assembly is a replaceable component; regular inspection for wear, scoring, or corrosion is necessary to maintain performance and prevent failure. Proper installation and alignment are crucial to avoid premature wear and ensure safe operation. The rod assembly's performance is influenced by factors such as material grade, surface treatment, and dimensional accuracy. It is important to consult the manufacturer's documentation for specific maintenance intervals and replacement criteria. The rod assembly is a fundamental part of articulation cylinders used in various industrial machinery, including construction equipment, material handling, and agricultural machinery. Its design and material selection are based on the required force, speed, and environmental conditions. The rod assembly must be compatible with the cylinder's seals and bearings to ensure efficient operation. When selecting a rod assembly, consider the operating pressure, temperature, and potential side loads. Always verify model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The rod assembly moves linearly within the cylinder barrel, driven by pressure differentials across the piston. It converts fluid energy into mechanical force, with seals preventing leakage and bearings or bushings minimizing friction during extension and retraction cycles. The rod transmits force to the external load, enabling articulation or linear motion. Proper sealing and lubrication are essential for efficient operation and longevity.

Common Materials

Chrome-plated steel

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bore Diameter	40–200 mm	Determines force output; larger bore for higher force.ISO 6020-2
Stroke Length	100–2000 mm	Customizable per application; affects overall length.
Proof Pressure	2.5 MPa	1.5× operating pressure for safety.
Operating Temperature	-20–80 °C	Seals degrade above 80°C.
Surface Hardness	HRC 50–60 HRC	Critical for wear resistance.ISO 18265
Surface Roughness	Ra 0.2–0.4 µm	Smooth finish reduces friction and wear.ISO 4287
Straightness	0.05/1000 mm	Ensures smooth operation.ISO 1101
Cylindricity	0.02 mm	Prevents leakage and uneven wear.ISO 1101
Material Grade	45#	High carbon steel for strength.GB/T 699
Weight	5–50 kg	Depends on size and material.

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

Components / BOM

Rod Part
Primary load-bearing shaft that transmits force

Material: Chrome-plated steel
Rod End Part
Interface for connecting to external machinery or load

Material: Steel
Wiper Seal Part
Prevents contaminants from entering the cylinder

Material: Polyurethane
Rod Seal Part
Prevents fluid leakage along the rod

Material: Nitrile rubber
Bushings Optional
Guide the rod and cut friction on bushed builds.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Rod Assembly.

Applied To / Applications

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

Articulation Cylinders

View system integration details

Manufacturers of Rod Assembly

Manufacturer profiles associated with Rod Assembly.

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Frequently Asked Questions

What is the primary function of a rod assembly in an articulation cylinder?

The rod assembly transmits linear force from the piston to external machinery, enabling pivotal movement between connected sections. It is the load-bearing element that converts fluid pressure into mechanical work.

What materials are commonly used for rod assemblies?

According to the directory, chrome-plated steel is a material on file. The material grade may be specified as 45# high carbon steel per GB/T 699, but always confirm with the manufacturer for the specific model.

What parameters should be considered when selecting a rod assembly?

Key parameters include bore diameter (40–200 mm), stroke length (100–2000 mm), operating pressure (1.0–1.6 MPa), proof pressure (2.5 MPa), operating temperature (-20 to 80°C), surface hardness (HRC 50–60), surface roughness (Ra 0.2–0.4 µm), straightness (0.05/1000 mm), cylindricity (0.02 mm), and weight (5–50 kg). These are reference ranges; verify for your application.

How should I verify the quality of a rod assembly?

Check that the rod assembly meets the specified standards such as ISO 6020-2 for bore diameter, ISO 18265 for hardness, ISO 4287 for roughness, and ISO 1101 for geometric tolerances. Always request documentation from the manufacturer and confirm compliance.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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pressure:	Up to 300 bar
flow rate:	Not applicable (static component)
temperature:	-40°C to 120°C
slurry concentration:	Up to 15% solids by weight

Rod Assembly

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards