 |
| Quantity: | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| A wide selection of types and models, high availability of ratios and Screw pitches, strokes on request assure a considerable range of selection and application. Screw Jacks are manufactured in the standard configuration Upright/Inverted Translating Screw with male, female Screw end or top plate, Upright/Inverted Rotating Screw with flanged nut. We do not have standard Work Screw length and each Screw Jack is manufactured following specific requirements. | |||||||||
JT-30T
JACTON
Product Description
Acme Screw Jack 30 Ton-Tr 75x12-Lead Screw. Trapezoidal threads are especially used in cases when the linear movement – in horizontal and vertical direction – is necessary. Due to dense thread configuration there is a high friction which involves an advantage for transmission threads, a self-locking feature. Screw jacks are available in travelling screw and travelling nut designs. They have equal dynamic performance and the choice depends on your mounting/installation. Standard options include electric motors, safety nuts, protective tubes, bellows, trunnion mounting, anti-turn, micro switches, wear detection and adjustable backlash.
Main Features
* Maximum static load capacities 30 ton.
* Self-locking acme screw sizes Tr 75x12.
* Three gear ratios: high ratio 12:1, medium ratio 18:1, and slow ratio 36:1.
* Custom stroke length, maximum stroke 4500 mm in compression load, 5500 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 30 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.
