Hydraulic Cylinder / Linear Actuator for Coil Ejection Systems

Product Specifications

Technical details and manufacturing context for Hydraulic Cylinder / Linear Actuator

Definition

A hydraulic cylinder, also known as a linear actuator, is a critical component within the Coil Ejection System. It provides the precise, powerful, and controlled linear force required to push or eject finished metal coils from the processing machinery onto conveyors or storage areas. Its operation is integral to automating material handling and ensuring production line efficiency. The cylinder converts hydraulic fluid pressure into mechanical force and linear motion, enabling the safe and efficient transfer of heavy coils. This product is designed for use in machinery and equipment manufacturing, specifically in applications requiring reliable linear actuation under demanding conditions. The cylinder's construction typically includes a hardened steel piston rod, a chrome-plated rod surface, a cast iron or steel barrel, and seals made of polyurethane or nitrile rubber. Key parameters such as bore diameter, stroke length, operating pressure, and piston rod diameter determine its performance and suitability for specific tasks. For instance, bore diameter ranges from 40 to 320 mm, stroke length from 50 to 2000 mm, and operating pressure from 1.0 to 16 MPa. These values are reference ranges and must be verified with the manufacturer for the exact model. The cylinder may feature adjustable cushioning to reduce end-of-stroke impact, and its sealing material can be NBR or PTFE depending on the fluid and temperature requirements. Operating temperature range is -20 to 80°C, and ingress protection ratings vary from IP54 to IP65. Mounting types include flange or clevis, and cylinder material can be ST52 or 304 stainless steel. Rod surface treatment options are chrome or ceramic. Weight ranges from 10 to 500 kg. Always confirm model-specific specifications and compliance with relevant standards such as ISO 6020-2, ISO 6195, ISO 1629, IEC 60529, ISO 6982, and DIN 2391 with the legal manufacturer or supplier.

Working Principle

Hydraulic fluid is pumped into one side of the cylinder under pressure, acting on the piston surface area. This pressure creates a force (Force = Pressure × Area) that moves the piston rod in a linear direction. The direction of movement is controlled by valving that directs fluid to either the cap end or rod end of the cylinder. The force and speed are regulated by the fluid pressure and flow rate, respectively.

Common Materials

Hardened Steel, Chrome-plated Steel Rod, Cast Iron or Steel Cylinder Barrel, Polyurethane or Nitrile Rubber Seals

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bore Diameter	40–320 mm	Determines force output; larger bore for higher force.ISO 6020-2
Stroke Length	50–2000 mm	Custom strokes available; longer strokes may require rod support.
Operating Pressure	1.0–16 MPa	Higher pressure increases force but requires heavier construction.
Piston Rod Diameter	20–180 mm	Affects buckling strength and rod speed.ISO 6195
Maximum Speed	0.1–0.5 m/s	Higher speeds may require cushioning to avoid impact.
Cushioning Type	Adjustable	Adjustable cushions reduce end-of-stroke impact.
Sealing Material	NBR–PTFE	NBR for mineral oil; PTFE for high temp or chemical resistance.ISO 1629
Operating Temperature	-20–80 °C	Outside range, seals may fail or fluid viscosity changes.
Ingress Protection	IP54–IP65	IP65 for dusty or wet environments.IEC 60529
Mounting Type	Flange–Clevis	Flange for rigid mounting; clevis for pivoting applications.ISO 6982
Cylinder Material	ST52–304	304 stainless for corrosion resistance; ST52 for high strength.DIN 2391
Rod Surface Treatment	Chrome–Ceramic	Chrome plating standard; ceramic for extreme wear resistance.
Weight	10–500 kg	Depends on bore, stroke, 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

Cylinder Barrel
Contains the hydraulic fluid and pressure, houses the piston assembly.

Material: Hardened Steel or Cast Iron
Piston
Seals the barrel interior and converts fluid pressure into linear force.

Material: Hardened Steel with Seals
Piston Rod Part
Transmits the linear force from the piston to the external load (ejector mechanism).

Material: Chrome-plated High-Tensile Steel
End Caps Part
Seal the ends of the barrel and often provide ports for hydraulic connections and rod guidance.

Material: Cast Iron or Steel
Seals and Gaskets Part
Prevent internal and external leakage of hydraulic fluid.

Material: Polyurethane, Nitrile Rubber, or PTFE

Applied To / Applications

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

Coil Ejection System

View system integration details

Manufacturers of Hydraulic Cylinder / Linear Actuator

Manufacturer profiles associated with Hydraulic Cylinder / Linear Actuator.

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Frequently Asked Questions

What is the typical bore diameter range for this hydraulic cylinder?

The bore diameter ranges from 40 to 320 mm, as listed in the reference parameters. The exact value depends on the required force output and must be confirmed with the manufacturer for the specific model.

What standards apply to this cylinder?

Relevant standards include ISO 6020-2 for bore diameter for operating pressure, ISO 6195 for piston rod diameter, ISO 1629 for sealing material, IEC 60529 for ingress protection, ISO 6982 for mounting type, and DIN 2391 for cylinder material. These are reference standards; compliance must be verified with the supplier.

What is the operating temperature range?

The operating temperature range is -20 to 80°C. Outside this range, seals may fail or fluid viscosity changes, so it is important to confirm suitability for your environment.

What mounting types are available?

Mounting types include flange and clevis. Flange mounting is for rigid applications, while clevis is for pivoting applications. The choice depends on the installation requirements and must be specified for the model.

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 (standard), up to 700 bar (high-pressure designs)
flow rate:	Dependent on cylinder bore size and required speed, typically 5-200 L/min
temperature:	-20°C to 120°C (standard seals), -40°C to 200°C (specialized seals)
slurry concentration:	Not recommended for abrasive slurries; maximum 5% solids in clean hydraulic fluid

Hydraulic Cylinder / Linear Actuator

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards