5 Ton Screw Jack

Product Description

Machine Screw Jack 5 Ton-40x7-Trapezoidal Screw.

Versatile machine screw jacks lift and precisely position all kinds of loads. Upright or inverted, these precision jacks operate the load is in tension or compression.

Single lead screw jacks are self-locking under full lifting capacity. Double lead screw jacks offer increased travel speed. Alloy steel input shafts, aluminum bronze worm gears and tapered roller or ball thrust bearings provide rugged reliability. Double input shafts are standard. Single input shafts are available with right or left hand extension or additional length. Jacks are available with one of four standard end conditions or special ends to meet your requirements. All jack designs can be fitted with protective boots. We can customize machine screw jacks to meet your specifications.

Main Features

* Maximum static load capacities 5 ton.

* Self-locking trapezoidal screw sizes Tr 40x7.

* Two gear ratios: high ratio 6:1, slow ratio 24:1 for high and slow linear speeds.

* Custom stroke length, maximum stroke 3000 mm in compression load, 4000 mm in tension load.

* Basic designs: Translating screw, Keyed screw, and Rotating screw.

* Upright or Inverted mounting. Available in tension or compression loads.

* Standard with 1-start thread screw, custom 2-starts threads screw which offers increased travel speed and require a brake or external locking device to hold position.

* Screw end fittings: top plate, clevis end, threaded end, plain end, fork head and rod end.

* Power source: manual operation with hand wheel and crank handle, electrically by motor drive, or both together.

* Can be applied either individually use or combined into a exactly synchronized lifting system(multiple jack systems), linked by connecting shafts, bevel gearboxes, couplings, electric motors, gear reducers, limit switches and pillow blocks etc.

* Custom double clevis screw jack, trunnion mount screw jack, and anti-backlash screw jack.

* Can be used as alternatives to hydraulic and pneumatic systems.

Product Material

We use the best materials to  performance  of the 5 Ton Machine Screw Jack you purchased.

* Housing: High-strength Casting Housing, Ductile Iron. Custom Stainless Steel 304.

* Lifting Screw: C45 Steel as Standard. Custom Stainless Steel 304 or 316.

* Input Shaft (Worm): C45 Steel in high frequency heat treatment process. Custom Stainless Steel 304 or 316.

* Worm Gear / Travelling Nut / Safety Nut: ZQAl9-4 (Casting aluminum bronze) as Standard. Custom ZCuSn10Pb1(Casting tin bronze).

* Bearing: Anti-friction Ball Thrust Bearings for Worm Gear. Anti-friction Ball Bearings for Input Shaft(worm). Custom Stainless Steel 304.

* Motor Flange Adapter: High-strength Casting Motor Adapter, Ductile Iron. Custom Stainless Steel 304 or 316.

* Lubricants: Synthetic Grease, Extreme Pressure EP2 Lithium Grease.