Large Bore Cylinder/Piston for Pressure Intensifiers

Product Specifications

Technical details and manufacturing context for Large Bore Cylinder/Piston

Definition

In a Pressure Intensifier system, the Large Bore Cylinder/Piston is the primary actuating component. It converts fluid pressure (hydraulic or pneumatic) into mechanical force and linear motion. The large bore diameter allows for high force output at relatively lower operating pressures, making it suitable for applications requiring substantial pushing, pulling, or lifting force within the intensifier's mechanism. This component is typically used in industrial machinery where space constraints or system pressure limitations necessitate a compact yet powerful actuation solution. The cylinder tube is commonly made of aluminum alloy (e.g. 6061-T6) or steel, while the piston rod is often chrome-plated steel (e.g. 45#) to resist wear and corrosion. Seals are typically NBR (nitrile) for standard temperatures, with FKM (fluorocarbon) options for high-temperature environments up to 150°C. The bore diameter ranges from 200 to 500 mm, and stroke lengths from 500 to 3000 mm, with custom strokes available. Operating pressure is typically 0.5 to 1.6 MPa, with a maximum of 2.5 MPa for hydraulic versions. Piston speed ranges from 0.1 to 0.5 m/s, and operating temperature from -20°C to 80°C. Piston rod diameters are matched to bore and pressure, ranging from 50 to 160 mm. Mounting options include flange, foot, clevis, or trunnion, and cushioning is adjustable to reduce end-of-stroke impact. Weight varies from 50 to 500 kg depending on bore, stroke, and mounting. All specifications are reference values and must be verified with the manufacturer for specific applications. Standards such as ISO 3320, ISO 4393, ISO 15552, ISO 8573-1, ISO 6195, ASTM B221, GB/T 699, and ISO 1629 are referenced for procurement and verification, but do not imply certification or compliance. Always confirm model-specific values and standards with the legal manufacturer or supplier.

Working Principle

Fluid under pressure is introduced into one side of the cylinder chamber. This pressurized fluid acts upon the surface area of the piston, creating a force (Force = Pressure × Area). Due to the large bore (diameter), the piston's surface area is significant, resulting in a high output force even with moderate fluid pressure. The piston rod transmits this linear force to the connected load or mechanism within the Pressure Intensifier. The direction of motion is controlled by directing fluid to either side of the piston, allowing for both push and pull operations. The large bore enables high force output without requiring extremely high system pressures, which can reduce energy consumption and component stress. Proper sealing and lubrication are essential to maintain efficiency and prevent leakage. The cushioning feature helps decelerate the piston at the end of stroke, reducing impact and noise. The working principle is fundamental to the intensifier's function, where the large bore cylinder acts as the primary force generator.

Common Materials

Chrome-plated Steel, Cast Iron, Aluminum Alloy

Technical Parameters

Parameter	Typical range	Notes & selection driver
Bore Diameter	200–500 mm	Standard sizes; larger on requestISO 3320
Stroke Length	500–3000 mm	Custom strokes availableISO 4393
Operating Pressure	0.5–1.6 MPa	Max 2.5 MPa for hydraulic versions
Piston Speed	0.1–0.5 m/s	Higher speeds require special sealsISO 15552
Operating Temperature	-20–80 °C	For standard seals; high-temp options to 150°CISO 8573-1
Piston Rod Diameter	50–160 mm	Matched to bore and pressureISO 6195
Cylinder Tube Material	6061-T6	Aluminum alloy; steel optionalASTM B221
Piston Rod Material	45#	Chrome-plated; stainless steel optionalGB/T 699
Seal Material	NBR	FKM for high temperatureISO 1629
Cushioning Type	Adjustable	Reduces end-of-stroke impactISO 15552
Mounting Type	Flange	Other options: foot, clevis, trunnionISO 15552
Weight	50–500 kg	Depends on bore, stroke, and mounting

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.

Material: Chrome-plated Steel
Piston Part
Seals the pressure chamber and converts fluid pressure into linear force.

Material: Cast Iron with Seals
Piston Rod Part
Connects the piston to the external load, transmitting the linear force.

Material: Hardened Steel
End Caps Part
Seal the ends of the cylinder barrel and contain the pressure.

Material: Cast Iron or Steel
Seals and Gaskets Part
Prevent fluid leakage between moving and static parts.

Material: Nitrile Rubber, Polyurethane

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Large Bore Cylinder/Piston.

Applied To / Applications

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

Pressure Intensifier

View system integration details

Manufacturers of Large Bore Cylinder/Piston

Manufacturer profiles associated with Large Bore Cylinder/Piston.

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Frequently Asked Questions

What is the typical bore diameter range for this component?

The bore diameter typically ranges from 200 to 500 mm, with larger sizes available on request. These are standard sizes per ISO 3320, but actual dimensions must be confirmed with the manufacturer for your specific application.

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

The cylinder tube is commonly made of aluminum alloy 6061-T6, with steel as an option. The piston rod is typically chrome-plated steel (grade 45#), with stainless steel as an option. These materials are listed in the directory and should be verified for suitability with your operating environment.

What is the maximum operating pressure for hydraulic versions?

The standard operating pressure range is 0.5 to 1.6 MPa, with a maximum of 2.5 MPa for hydraulic versions. Always check the manufacturer's specifications for the exact pressure rating of the model you intend to use.

Are there options for high-temperature applications?

Yes, standard seals are NBR (nitrile) for temperatures from -20°C to 80°C. For high-temperature environments up to 150°C, FKM (fluorocarbon) seals are available. Confirm the seal material and temperature limits with the supplier.

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 10 bar (pneumatic)
flow rate:	Dependent on bore size and velocity, typically 50-500 L/min
temperature:	-40°C to 120°C
slurry concentration:	Not recommended for abrasive slurries >5% solids by volume

Large Bore Cylinder/Piston

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards