High pressure hydraulic cylinders are designed for machinery that requires strong linear force, controlled movement, and dependable performance under demanding load conditions. They are commonly used in large cranes, hydraulic presses, heavy lifting systems, industrial machinery, construction equipment, and other applications where standard or medium pressure cylinders may not provide sufficient force or structural capacity.

KICAN supplies custom high pressure hydraulic cylinders for OEM machinery manufacturers, replacement-cylinder projects, repair distributors, and equipment upgrading programs. Cylinder bore, rod diameter, stroke, mounting structure, pressure rating, port configuration, sealing system, and surface protection can be customized according to your equipment design and hydraulic system requirements.

For broader custom cylinder options by structure, mounting style, and application, visit our Customized Hydraulic Cylinder page.

What Is a High Pressure Hydraulic Cylinder?

On this website, high pressure hydraulic cylinders generally refer to cylinders designed for hydraulic systems operating from 25 to 35 MPa, or approximately 3625 to 5076 psi.

High pressure cylinder selection should not be based on pressure alone. The final configuration must also consider required push and pull force, bore size, rod diameter, stroke length, duty cycle, load direction, mounting geometry, hydraulic fluid, operating temperature, and possible shock loads.

A properly designed high pressure hydraulic cylinder helps equipment achieve high force output while maintaining stable movement and reliable service performance.

Typical Applications of High Pressure Hydraulic Cylinders

Custom high pressure hydraulic cylinders can be used in heavy-duty mobile machinery and industrial equipment.

Typical applications include:

• Large crane boom and telescoping systems

• Hydraulic press machinery

• Heavy lifting platforms

• Industrial forging and forming equipment

• Construction machinery attachments

• Heavy-duty excavator systems

• Mining machinery

• Steel mill equipment

• Waste compaction and recycling equipment

• Heavy-duty material handling systems

• Large loader and bulldozer attachments

• Marine and port handling equipment

• Heavy-duty clamping systems

• Industrial push-pull and positioning mechanisms

• Customized lifting and support equipment

Customization Options for High Pressure Hydraulic Cylinders

Bore Size and Force Output

Bore diameter is selected according to the available pressure and the required pushing force. In high pressure systems, a properly matched bore helps provide strong output force while controlling cylinder size, hydraulic oil demand, and installation space.

Rod Diameter and Structural Strength

Rod diameter must be matched to the compression load, stroke length, mounting arrangement, and possible side loading. High pressure applications may require reinforced rod-end structures and suitable rod dimensions to reduce the risk of bending or buckling.

Stroke Length

Stroke length can be customized for lifting, extending, pushing, pulling, clamping, tilting, and telescoping mechanisms. Both compact short-stroke cylinders and long-stroke high pressure cylinders can be developed according to the equipment movement range.

Mounting Style

Available mounting options may include:

• Clevis mounts

• Pin-eye mounts

• Cross tube mounts

• Flange mounts

• Trunnion mounts

• Foot mounts

• Welded brackets

• Custom rod ends

• OEM-specific mounting interfaces

Correct mounting geometry is important for distributing load properly and minimizing side force on the rod, seals, gland, and cylinder tube.

Hydraulic Port Configuration

Port type, thread specification, and port location can be customized based on hose routing and system layout. Proper port positioning can reduce hose interference, simplify installation, and improve maintenance access.

Seals and Surface Protection

High pressure operation requires sealing systems that match the working pressure, hydraulic fluid, temperature range, operating frequency, and contamination level.

Available options may include:

• High-pressure piston and rod sealing systems

• Dust wipers for dusty or dirty working conditions

• Wear rings for stable piston guidance

• Corrosion-resistant rod treatment

• Chrome-plated rod surfaces

• Protective paint or coating systems

• Reinforced gland structures

• Custom sealing arrangements for demanding work environments

Key Design Considerations for High Pressure Cylinders

Pressure Fluctuation and Shock Load

Heavy machinery may experience sudden pressure spikes, impact forces, rapid movement changes, and vibration. Cylinder structure, seals, mounting interfaces, and rod dimensions should be selected with these working conditions in mind.

Push Force and Pull Force

For double-acting cylinders, push force and pull force are not identical because the rod reduces the effective piston area on the retract side. Both force directions should be evaluated before confirming the cylinder bore and rod diameter.

Side Load Prevention

High pressure hydraulic cylinders are designed for linear force transfer. Excessive side load may cause rod scoring, seal wear, leakage, bushing damage, and shortened service life. Proper alignment between the cylinder and equipment linkage is essential.

Duty Cycle

A cylinder used for occasional lifting has different requirements from one used continuously in pressing, clamping, lifting, or industrial production equipment. Higher working frequency may require more careful consideration of heat generation, seal wear, and component durability.

Installation Space

The cylinder’s retracted length, extended length, mounting-center distance, port direction, and rod-end shape should fit the equipment layout. A custom design can reduce the need to modify surrounding structures or hydraulic lines.

Common High Pressure Hydraulic Cylinder Configurations

Why Choose a Custom High Pressure Hydraulic Cylinder?

Standard cylinders may not match the exact pressure range, force demand, mounting dimensions, stroke requirement, or working environment of heavy equipment. A custom high pressure hydraulic cylinder can be designed to fit the machinery structure and hydraulic circuit more accurately.

Custom solutions can provide:

• Bore and rod dimensions matched to force requirements

• Stroke length matched to actual equipment travel

• Mounting interfaces designed for OEM linkage systems

• Port locations optimized for hose routing

• Seal systems selected for high pressure operation

• Surface protection for outdoor or corrosive environments

• Better fitment for heavy-duty equipment structures

• Reduced installation modification during assembly

• More consistent replacement planning for fleets and OEM programs

Information Needed for a Custom Quote

To recommend a suitable high pressure hydraulic cylinder, please provide as much information as possible:

• Equipment type and cylinder application

• Required push force and pull force

• Normal operating pressure and maximum pressure

• Bore diameter and rod diameter, if known

• Stroke length

• Closed length and extended length

• Mounting type and pin dimensions

• Port type, thread, and port location

• Required quantity

• Hydraulic fluid type

• Operating temperature range

• Working environment, including dust, water, mud, salt, chemicals, or outdoor exposure

• Existing cylinder photos, samples, technical drawings, or OEM part numbers

If a complete drawing is unavailable, clear photos of the existing cylinder and its installation position can help confirm the required configuration.

Frequently Asked Questions

What pressure range is considered high pressure for hydraulic cylinders?

For this product range, high pressure hydraulic cylinders generally refer to systems operating from 25 to 35 MPa. The final cylinder design should still be confirmed based on force, stroke, load condition, duty cycle, and safety requirements.

Can high pressure hydraulic cylinders be used for cranes?

Yes. High pressure hydraulic cylinders can be designed for crane lifting, boom extension, support, and positioning functions. The bore, rod diameter, mounting style, stroke, and sealing system should match the specific crane structure and operating conditions.

What is the difference between medium pressure and high pressure hydraulic cylinders?

The main difference is the operating pressure range and the related force, structural, sealing, and safety requirements. High pressure cylinders are generally designed for heavier loads, stronger output force, and more demanding industrial or mobile equipment conditions.

Can the mounting dimensions be customized?

Yes. Mounting centers, pin diameters, rod ends, base ends, brackets, port positions, and overall cylinder length can be customized according to a drawing, sample, or equipment installation requirement.

Request a Custom High Pressure Hydraulic Cylinder

Send us your drawing, sample, OEM part number, or equipment details. Our team can help evaluate the required bore, rod diameter, stroke, pressure rating, mounting configuration, ports, sealing system, and surface protection for your high pressure hydraulic cylinder project.