All Four-In-One Caster Jacks can be furnished with or without the casters. Special care must be taken when selecting your caster requirement to make certain you do not exceed the maximum allowable caster size specified for each individual caster jack assembly. Usable size load capability is a factor of the rated load, overall height and the swivel offset of the caster assembly selected. Kingpinless casters with Nylacron wheels are recommended for all caster jacks. For application assistance, contact Acorn.
Capacity:Up to 7,500 lbs.
Applications:Ideal for easy movement and vertical adjustment of machines and work platforms.
Four-in-One Caster Jacks:Lift, Lower, Swivel and Roll.
Versatile:Jacks can operate vertically or horizontally to raise, lower or push your load. Units requiring tension load capability are available on special application.
Compact:Single package unit does away with cylinders or other space consuming arrangements.
Complete protection of screw & critical parts by inner and outer tube enclosure:Round tubes in 10,000 lb. models assure precision fit and extreme mounting rigidity. Other models have square tube construction. Special tube locks available where side movement must be completely eliminated.
Automatic latch & self-locking design:Provides double safety against rotation of jack screw under vibration or extreme loading conditions. No need for brakes or expensive locking devices. Automatic latch is standard in 7,500 lb. and 10,000. lb. models. Latch actuates when crank handle is removed from assembly.
Can take side loads:Resulting from uneven terrain, off-center loading, and eccentric mounting methods.
High efficiency bevel gear-heads:With 3.1 or 3.66 1 gear ratios in 5,000 lb., 7,500 lb. and 10,000 lb. models. Gearheads have precision tapered thrust bearing steel or bronze driveshaft bushings, large lubricant reservoir. 500 lb. and 1,800 lb. models operate on direct screw drive.
Stowable:Solves ground clearance problem. Trunnion mount 31000 and 31020 models swing up and out of the way...are easily attached to trailer in the horizontal position.
Corrosion-resistant finish:All jacks are treated with protective phosphate to Mil-P-16232 and are prime painted with red oxide per Mil-TT-P-636. All hardware is zince or cadmium plated.