Hydraulic/Pneumatic Cylinder

Product Specifications

Technical details and manufacturing context for Hydraulic/Pneumatic Cylinder

Definition

This product is a hydraulic or pneumatic cylinder, a linear actuator component used in machinery and equipment manufacturing. It converts fluid power—either hydraulic oil or compressed air—into mechanical force and linear motion. The cylinder is commonly integrated into ejection mechanisms, where it provides controlled linear force to push or eject parts from molds, dies, or fixtures. It operates by pressurizing fluid within a sealed cylinder to extend or retract a piston rod, delivering precise and repeatable ejection strokes.

Key specifications, as listed in the directory, include bore diameter (32–320 mm, ISO 6020-2), stroke length (25–2000 mm, ISO 6020-2), operating pressure (1.0–16 MPa), piston rod diameter (12–140 mm, ISO 6020-2), maximum speed (0.1–1.5 m/s), operating temperature (-20–80 °C), seal material (NBR–PTFE, ISO 1629), cylinder tube material (STKM13A–27SiMn, DIN 2391), cushioning type (adjustable–self, ISO 6431), mounting type (MF1–MF6, ISO 6020-2), weight (1.5–350 kg), and IP rating (IP54–IP65, IEC 60529). These values are reference ranges and must be confirmed for the specific model and application.

Materials on file include chrome-plated steel, stainless steel, aluminum alloy, and sealing elastomers such as nitrile and polyurethane. The cylinder is available in various configurations, with mounting types including flange, foot, trunnion, and others. Cushioning may be adjustable or self-adjusting, depending on speed requirements. The IP rating indicates suitability for outdoor or dusty environments.

For selection, verify the required force output, stroke length, operating pressure, speed, temperature range, and environmental conditions. Confirm that the chosen cylinder meets the relevant ISO, DIN, or IEC standards. Always check the manufacturer's documentation for exact specifications and compliance. Maintenance signals include seal wear, leakage, reduced force, or unusual noise. Failure boundaries are defined by the maximum operating pressure, temperature limits, and speed ratings. This directory entry is for reference only; consult the legal manufacturer or supplier for model-specific values and standards.

Working Principle

Fluid (hydraulic oil or compressed air) is directed into one side of the cylinder chamber via a valve, creating pressure against the piston. This pressure differential across the piston area generates a linear force, moving the piston rod. The direction of motion (extension or retraction) is controlled by which port receives the pressurized fluid.

Common Materials

Chrome-plated steel, Stainless steel, Aluminum alloy, Sealing elastomers (e.g., Nitrile, Polyurethane)

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bore Diameter	32–320 mm	Determines force outputISO 6020-2
Stroke Length	25–2000 mm	Custom lengths availableISO 6020-2
Operating Pressure	1.0–16 MPa	Hydraulic up to 16 MPa, pneumatic up to 1.6 MPa
Piston Rod Diameter	12–140 mm	Affects buckling strengthISO 6020-2
Maximum Speed	0.1–1.5 m/s	Higher speeds may require cushioning
Operating Temperature	-20–80 °C	Seals limit range
Seal Material	NBR–PTFE	NBR for oil, PTFE for high tempISO 1629
Cylinder Tube Material	STKM13A–27SiMn	Steel for high pressure, aluminum for light weightDIN 2391
Cushioning Type	Adjustable–Self	Adjustable for high speedISO 6431
Mounting Type	MF1–MF6	Flange, foot, trunnion, etc.ISO 6020-2
Weight	1.5–350 kg	Depends on bore and stroke
IP Rating	IP54–IP65	For outdoor or dusty environmentsIEC 60529

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
Forms the pressure chamber and guides the piston; contains the pressurized fluid.

Material: Chrome-plated steel tube or stainless steel
Piston Part
Seals the cylinder bore and converts fluid pressure into linear force; separates the two pressure chambers.

Material: Steel or aluminum with sealing rings
Piston Rod Part
Transmits the force from the piston to the external load (ejector plate/pin); undergoes linear motion.

Material: Hardened and chrome-plated steel
End Caps Part
Seal the ends of the cylinder barrel; contain ports for fluid entry/exit and often house rod seals and bearings.

Material: Steel or aluminum
Seals and Gaskets Part
Prevent internal and external leakage of fluid; ensure pressure integrity and rod sealing.

Material: Nitrile rubber, Polyurethane, or other elastomers

Applied To / Applications

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

Ejection Mechanism

View system integration details

Manufacturers of Hydraulic/Pneumatic Cylinder

Manufacturer profiles associated with Hydraulic/Pneumatic Cylinder.

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Frequently Asked Questions

What is the difference between hydraulic and pneumatic cylinders?

Hydraulic cylinders use incompressible hydraulic oil, allowing higher operating pressures (up to 16 MPa) and greater force output. Pneumatic cylinders use compressible air, typically limited to 1.6 MPa, and are lighter and faster but provide less force. The choice depends on the required force, speed, and available power source.

How do I select the correct bore diameter?

Bore diameter determines the force output. For a given pressure, force equals pressure times the piston area. Use the required ejection force and available system pressure to calculate the minimum bore. The directory lists a range of 32–320 mm; confirm the exact size with the manufacturer based on your application.

What standards apply to these cylinders?

Common standards include ISO 6020-2 for dimensions and mounting types, ISO 1629 for seal materials, DIN 2391 for cylinder tube materials, ISO 6431 for cushioning, and IEC 60529 for IP ratings. These are reference standards; verify compliance with the supplier.

What maintenance is required?

Regularly inspect seals for wear or leakage, check for rod damage, and monitor operating pressure and speed. Replace seals as needed, and ensure the cylinder is clean and properly lubricated. Unusual noise or reduced force may indicate internal wear or seal failure.

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 (hydraulic), Up to 16 bar (pneumatic)
flow rate:	Dependent on cylinder bore size and required speed
temperature:	-20°C to 120°C (hydraulic), -40°C to 80°C (pneumatic)
slurry concentration:	Not recommended for abrasive slurries; maximum 5% solids in compatible fluids

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards