Piston Rod/Cylinder for Oscillation Actuators

Product Specifications

Technical details and manufacturing context for Piston Rod/Cylinder

Definition

The piston rod and cylinder assembly is a core mechanical component in an oscillation actuator, responsible for generating controlled reciprocating motion. The cylinder houses a piston connected to a piston rod; together, they transform hydraulic or pneumatic pressure into precise linear displacement that drives the actuator's oscillating output. This assembly is fundamental in machinery and equipment manufacturing, where reliable linear actuation is required for tasks such as positioning, clamping, or material handling. The cylinder tube is typically made from aluminum alloy or stainless steel, offering corrosion resistance, while the piston rod is often chrome-plated steel or stainless steel for wear resistance. Seal materials such as NBR or PU ensure proper sealing and chemical compatibility. Key parameters include bore diameter (32–125 mm), stroke length (25–500 mm), operating pressure (0.1–1.0 MPa), piston rod diameter (12–45 mm), operating temperature (-20 to 80 °C), and piston speed (0.1–1.5 m/s). These values are reference ranges per ISO standards and must be verified for the specific model and application. The assembly's performance depends on proper selection of mounting type (foot, flange, or clevis), port size (G1/8–G1/2), and cushioning type (adjustable). Weight ranges from 1.5 to 15 kg. For procurement, verify that the product meets the required ISO standards (e.g. ISO 3320, ISO 4393) and confirm all specifications with the legal manufacturer or supplier. Regular maintenance includes checking for seal wear, rod surface damage, and proper lubrication. Failure boundaries include exceeding pressure or temperature limits, which can cause seal failure or structural damage.

Working Principle

Hydraulic or pneumatic pressure is applied to one side of the piston within the sealed cylinder, creating a force differential that pushes the piston and attached rod in a linear direction. Reversing the pressure direction causes the assembly to move in the opposite direction, enabling controlled oscillation when integrated with valve systems and control mechanisms. The speed and force of the motion depend on the pressure, bore diameter, and flow rate. Cushioning at the end of stroke reduces impact, and the piston rod transmits the linear force to the external load.

Common Materials

Chrome-plated steel, Stainless steel, Aluminum alloy

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bore Diameter	32–125 mm	Determines force outputISO 3320
Stroke Length	25–500 mm	Travel rangeISO 4393
Operating Pressure	0.1–1.0 MPa	Max pressure rating
Piston Rod Diameter	12–45 mm	Affects buckling strengthISO 6195
Operating Temperature	-20–80 °C	Seal material limitsISO 8573-1
Piston Speed	0.1–1.5 m/s	Max speed for seal lifeISO 8135
Cushioning Type	adjustable	End-of-stroke impactISO 15552
Seal Material	NBR/PU	Chemical compatibilityISO 1629
Cylinder Tube Material	Aluminum/Stainless Steel	Corrosion resistanceASTM B221
Piston Rod Surface Treatment	Hard Chrome Plated	Wear resistanceISO 6158
Mounting Type	Foot/Flange/Clevis	Installation flexibilityISO 15552
Port Size	G1/8–G1/2	Flow capacityISO 228-1
Weight	1.5–15 kg	Depends on size

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

Cylinder Barrel
Houses the piston and contains the working fluid under pressure

Material: Steel or aluminum alloy
Piston Part
Creates pressure differential by separating fluid chambers within the cylinder

Material: Steel with sealing elements
Piston Rod Part
Transmits linear force from the piston to the external load

Material: Chrome-plated steel
Rod Seal Part
Prevents fluid leakage while allowing rod movement

Material: Polyurethane or nitrile rubber
Cushion Assembly
Slows the piston at each end of travel so the oscillation does not hammer the cylinder.

Applied To / Applications

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

Oscillation Actuator

View system integration details

Manufacturers of Piston Rod/Cylinder

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Frequently Asked Questions

What is the function of the piston rod and cylinder assembly in an oscillation actuator?

It converts hydraulic or pneumatic pressure into linear motion, driving the actuator's oscillating output. The cylinder houses the piston, and the rod transmits the force to the load.

What materials are commonly used for the piston rod and cylinder?

The cylinder tube is often aluminum alloy or stainless steel, and the piston rod is typically chrome-plated steel or stainless steel. Seal materials include NBR or PU.

What are the typical bore and stroke ranges?

Bore diameter ranges from 32 to 125 mm, and stroke length from 25 to 500 mm, per ISO standards. These are reference ranges; confirm for your specific model.

How do I verify that the assembly meets my requirements?

Check the operating pressure, temperature, speed, and mounting type against your application. Confirm all specifications and ISO standards with the legal manufacturer or supplier.

Data Basis

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Preliminary Technical Classification

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pressure:	Up to 300 bar (hydraulic), 10 bar (pneumatic)
flow rate:	Dependent on cylinder bore size and actuator design
temperature:	-40°C to +120°C
slurry concentration:	Not recommended for slurry applications; maximum particle size < 25μm if unavoidable

Piston Rod/Cylinder

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

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