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| Motor and screw jack assemblies can be installed in any position. The worm gearing has a specially modified form which results in low inter-gear specific pressures and an extended working life. The worm is manufactured from high quality alloy steel, hardened and ground. Normally the spindle pitch and gear ratio are matched. Single start precision trapezoidal screws are normally self locking. However safety regulations must be observed. | |||||||||
JT-5T
JACTON
Product Description
Acme Screw Jack 5 Ton-Tr 38x6-Lead Screw. Given the same performances in terms of load, speed and duty, the choice between translating screw design and travelling nut rotating screw design depends only on the specific application needs. Translating screw design are characterized by a trapezoidal acme screw travelling through the body of the screw jack, which performs the linear motion by the screw itself. In this case, it is required free space below the screw jack in order to allow the whole movement. In travelling nut rotating screw design instead, the trapezoidal screw rotates integrally with the gearbox wheel. The linear motion, in this case, is performed by the nut travelling up and down along the rotating screw. This nut will have to be fixed to the structure to be carried to avoid rotation with the screw.
Main Features
* Maximum static load capacities 5 ton.
* Self-locking acme screw sizes Tr 38x6.
* Three gear ratios: high ratio 6:1, medium ratio 12:1, and slow ratio 24:1.
* 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 guarantee the performance and lifetime of the 5 Ton Acme Screw Jack you purchased.
* Housing: High-strength Casting Housing, Ductile Iron.
* Acme 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.
Download
Speficications | Dimensional Drawings | Selection Guide | Catalog
Application Case
Mechanical worm gear acme screw jacks can be operated by manually or by electrical motor. More than one screw jacks can be connected together to move simultaneously. They are widely used in Paper, press, printing industry, Gypsum factories, Bridge jacks for road and bridge lifting, Shipyards, Opening and closing of penstocks, Industrial process, Roll form machinery, Mining industry, Sheet metal forming machinery, Mechanical lifting, Platform lifting, Food processing machinery, Construction sector, Defense industry, Lift tables, and Stage setup.
Packaging and Shipping
* 100% standard exporting plywood cases (international exporting standard wooden material with free fumigation).
* Express(Air): Factory to customers' company by FEDEX, DHL, UPS, TNT. Incoterms: EXW, DDU.
* Sea Freight: Factory to destination seaport by Vessel. Incoterms: CIF, FOB, EXW, CFR.
* Air Freight: Factory to destination airport by Airplane. Incoterms: CFR, EXW, FCA, CPT, CIP.
* Additional Options (Door to Door): Train Transportation, Truck Transportation, Ocean Shipping.
