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Hydraulic Jacks

    

AJS / AJH – Aluminium Jacks
Capacities from 6.5 to 100 Ton
   
Aluminium jacks combine light-weight with high lifting capacity.

The use of high tensile aluminium alloy allows lifting capacities of up to 100 ton resulting in a very favourable 1.8 ton lifting capacity per 1 kg weight ratio.

Operation of Yale hydraulic jacks is very simple. Jacks are supplied “ready for use”, i.e. including hydraulic oil, operating lever and, where applicable,
carrying handle and lifting claw.

   
Features
  • Strokes from 75 to 305 mm
  • Extremely low weight
  • The 6.5 and 10 ton jacks can be operated in any position (also upside down) and are equipped with spring return piston and stop ring
  • The 20 to 200 ton jacks can be operated vertically or horizontally
  • All jacks are provided with an overload protection valve
  • From 20 ton capacity with additional mechanical stroke limiter
  • All jacks with hardened alloy steel saddle and sensitive lowering valve which is activated by the operating lever.
  • All jacks from 20 ton provided with connection port for pressure gauge or motor pump.
  
Jacks with Lifting Claw
Jacks from 20 ton are available with a lifting claw. In this case, the jacks are provided with an elongated base plate. The maximum permissible working load of the lifting claws is 40% of the jack capacity.
   
Jacks with Safety Lock Nut
Jacks from 20 ton can be supplied with a safety lock nut. This device allows absolute safe jacking over a long period. In this case the hydraulic jack can operate like a mechanical support and the hydraulic system can be totally released.
   
Applications
Yale hydraulic jacks are universally popular tools for use in workshops or on site for all kinds of lifting and assembly applications, for construction, ship building, power plants, general engineering, metal fabrication and many more.

Standard jacks with plain piston and jacks with safety lock nuts cannot be used with a lifting claw.

To increase stability, all jacks with long stroke (305 mm) are equipped with an elongated base plate.
  
  

YAM – Machine Jacks with Lifting Claw

From 2 to 15 ton
   
Machine jacks with lifting claw are used in applications where space below the load is restricted, thus preventing the use of traditional lifting equipment.
   
Features
  • Offers safe lifting of machines with an extremely low clearance
  • Including safety pressure valve to prevent overload
  • Large base offers increased stability under load.
  • Pump level can rotate through 270? (excluding YAM-2)
  • Same load can be lifted on either the head or the claw of jack.
  • Spring return of the lifting claw (only YAM-5 and YAM-10)
  • Precision adjustable lowering valve.
  • Jacks are supplied “ready to use” including pump lever and are filled with oil.
  
Applications
Typical applications for machine jacks are lifting, positioning and transportation of machines, heavy steel constructions or similar loads, as well as general repair and assembly applications, like levelling of high-rise warehouses, heavy duty scaffolds, large frameworks etc.
  
  

YAK – Hydraulic Machine Lifters

For External Pump Connection
   
These lifting units can be used for lifting and positioning of machines, steel
constructions, heavy modules or segments and similar large loads.
   
Features
  • ‘Toe lift’ design for very low clearance
  • Lifting claw adjustable to three heights
  • Safe stability due to extendable support feet
  • Built-in Hydraulic Cylinder with spring return
  • Including quick connect coupler half CFY-1 and carrying handle
  • Can be operated with all high pressure hand pumps and power packs or with 4-split flow power packs for ‘synchronised lifting operations’
  • Allows safe, remote lifting
  • Recommended hand pumps HPS-2/0.7 with hydraulic hose HHC-20
   
   

JH – Universal Jacks

Capacities from 2 to 50 ton
   

Yale Universal Jacks supply high forces for general operations like lifting, pushing, moving, supporting all kinds of loads.

   
Features
  • Robust, long-life design
  • Pressure relief valve
  • Precise controlled lowering
  • Additional screw extension of the piston (from 2 to 20 ton)
  • Grooved saddle
  • Large base plates for increased stability
   
FULL SPECIFICATIONS AVAILABLE FROM :
CMCO Material Handling (Pty) Ltd

TEL: International: (+ 27 31) 700 4388 or in South Africa: (031) 700 4388
FAX: International: (+ 27 31) 700 4512 or in South Africa: (031) 700 4512

Postal Address: P O Box 15557, Westmead, 3608, South Africa

Or E-Mail us on: sales@cmcosa.co.za