Hydraulic Cylinders

Hydraulic Cylinders

HYDRAULIC CYLINDERS

: FOX-VPS has nearly forty years experience in the manufacture of hydraulic cylinders and in the design of hydraulic systems that satisfy a wide variety of installations. These range from the harsh environment typical of civil engineering applications through mechanical handling equipment and on to high quality applications in fire fighting vehicles and hovercrafts.


Hydraulic Cylinders

HYDRAULIC CYLINDERS TYPES

:

• Single & double-acting cylinders
• Double-ended through rod cylinders
• Displacement cylinders
• Telescopic and full free lift cylinders
• Position sensing cylinders
• Stainless steel cylinders
• Rotary distribution couplings

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DESIGN

: Specifications for the FOX-VPS designed range of hydraulic cylinders can be found here, also available as a downloadable PDF file. FOX-VPS design specialist cylinders to meet the ever-increasing demands from our customers needs. Our designs are covered by design development process under our ISO9001:2000 Certification. We can accept most CAD formats and can export in DRG, DWG, DXF and PDF.
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CAPABILITIES

: Our standard range of cylinders goes from 40mm to 200mm bore and strokes up to 2000mm. Our specially designed cylinders range from 15mm to 600mm bore and stroke lengths up to 6000mm with materials to suit most environmental conditions along with special finishes. Working pressures can range up to 700 Bar. We also offer a range of standard Stainless Steel Cylinders for harsh environments, offshore, chemical and food industries.
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Enquiries


cylinders - specifications - sizes - stainless steel


Hydraulic Cylinders

SPECIFICATIONS

:
Below is a list of the basic cylinder specifications and terminology used, made with reference to the drawing on the right.
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1. CYLINDER TUBE


ASTM A513 Grade 1026 and DIN 2393 ST52-3 BK with a finish of 0.4UM Ra Max. Other material and finishes are available.
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2. PISTON ROD


High quality chrome of a thickness to meet or exceed Class 9 (ISO 4540) after exposure for a minimum of 40 hrs (salt spray test ISO3768). Induction hardened steel or stainless steel to BS 970 Part 1 421S29 or 316S31 and Chrome with Nickel underlay are offered as options.
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Hydraulic Cylinders

3. NECK GLAND


High quality cast iron to BS1452: 1990 Grade 250 or Phosphor Bronze to BS140 PB1, PB2 and BS970 Part 1: 080A42 with PTFE insets. The glands are designed to be fully lubricated to ensure long service life.
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4. PISTON


One piece steel design of robust construction. For heavy-duty applications an additional bearing ring may be added.
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5. OIL INLET


BSP female connections are standard but we offer male BSP, JIC and Metric alternatives. Also offered are elbows and pipes to manifold blocks.
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6. SEALS


We take great care to match the seal material and design to the customer’s requirements and take into account the maximum surface speed, the life expectation and the environment in which the cylinder operates. The selection of the correct seal is vital to the successful operation of our cylinders.
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7. MOUNTINGS


A wide range from simple pins, to specialist self-aligning bearings, to trunnion and flange mountings to suit individual needs.
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8. WORKING PRESSURE


Our standard working pressure range is up to 206 Bar (3000 PSI). Please consult our technical department if you need to operate at higher pressures of up to 700 Bar (10,000 PSI).
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Hydraulic Cylinder Testing

9. TESTING


All cylinders are subjected to a static pressure test 50% above the maximum working pressure. They are stamped with a serial number. Full traceability is ensured through our recorded test/inspection sheets.
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10. FINISH


Cylinders are sprayed with a black oxide primer ready for your topcoat. Other finishes are available on request.
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OPTIONAL FEATURES



VALVES


Pilot operated check valves and hose burst valves can be built into the cylinders for safety critical applications. Over-centre and check valves can also be fitted into external manifold blocks.
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CUSHIONING


Simple or fully adjustable cushioning can be provided at one or both ends of the cylinder stroke. A check valve can be incorporated into the cylinder design to allow unrestricted starting on the return stroke. Cushioning features will affect cylinder length depending on the rate of deceleration required. Contact our technical department for details.
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BLEED SCREWS


These can be provided and their location relative to the inlet connections should form part of the specification.
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View Hydraulic Cylinders Gallery

cylinders - specifications - sizes - stainless steel

Double Acting Hydraulic Cylinders

DOUBLE ACTING CYLINDERS - BASIC SIZES


Dimension ‘A' (Body Length) may increase dependent on stroke and application. For cylinders other than stated in the table please consult our technical department.

Max working pressures 206 Bar. Hydraulic Cylinder Sizes

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Cylinder Body Mounting Plain Pin Hole TypeCYLINDER BODY MOUNTING
PLAIN PIN HOLE TYPE

Hydraulic Cylinder Sizes

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Cylinder Rod Mounting Plain Pin Hole - Type 1CYLINDER ROD MOUNTING
PLAIN PIN HOLE - TYPE 1

Hydraulic Cylinder Sizes

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Cylinder Rod Mounting Plain Pin Hole - Type 2CYLINDER ROD MOUNTING
PLAIN PIN HOLE - TYPE 2

Hydraulic Cylinder Sizes

 

 

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Cylinder Rod Mounting Rod End ThreadsCYLINDER ROD MOUNTING
ROD END THREADS

Hydraulic Cylinder Sizes

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Cylinder Body Mounting Rear Ball Joint Heavy DutyCYLINDER BODY MOUNTING
REAR BALL JOINT HEAVY DUTY

Hydraulic Cylinder Sizes

 

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Cylinder Body Mounting Rear Ball Joint CYLINDER BODY MOUNTING
REAR BALL JOINT TYPE - LIGHT DUTY

Hydraulic Cylinder Sizes

 

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Cylinder Rod Mounting Rod End Screw-On-Type - Heavy DutyCYLINDER ROD MOUNTING
ROD END SCREW-ON TYPE - HEAVY DUTY

Hydraulic Cylinder Sizes

 

 

 

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Cylinder Rod Mounting Rod Ball Joint - Light DutyCYLINDER ROD MOUNTING
ROD BALL JOINT - LIGHT DUTY

Hydraulic Cylinder Sizes

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Cylinder Body Mounting Flange TypeCYLINDER BODY MOUNTING
FLANGE TYPE

Hydraulic Cylinder Sizes

 

 

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Cylinder Body Mounting Trunnion Mounting CylindersCYLINDER BODY MOUNTING
TRUNNION MOUNTING TYPE

Hydraulic Cylinder Sizes

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cylinders - specifications - sizes - stainless steel

Stainless Steel Hydraulic CylindersSTAINLESS STEEL HYDRAULIC CYLINDERS
BASIC SIZES

This new range of Stainless Steel hydraulic cylinders has been added due to the increase in demand for corrosion-resistant hydraulics. These cylinders can be used with normal hydraulic oil where external environmental conditions are not suitable for mild steel cylinders. Due to the internals being made completely from stainless steel, these cylinders are suitable to work with water.
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CYLINDER BASIC SPECIFICATION

Hydraulic Cylinder Sizes

Tube – BS970 – 304S15 – AISI 304
Rod – BS970 – 431S29 – AISI 431 (Rods can also be supplied in BS970 – 316S31)
Internal Parts – BS970 303S21 – AISI 303
External Parts – BS970 304S15 – AISI 304

For strokes longer than stated in the table, consult our technical department.
Max working pressures 206 Bar.
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cylinders - specifications - sizes - stainless steel

 

 



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FOX-VPS LTD, Minekeep House, Bridge Road, Camberley, Surrey, GU15 2QZ, UK
Tel: +44 1276 683331 Fax: +44 1276 683332 E-Mail: sales@foxvps.co.uk
Hydraulic Cylinders - Single & Double Acting Cylinders - Double Ended Through Rod Cylinders - Telescopic Cylinders
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