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| 20 Ton Machine Screw Jack has set a new standard for linear motion control. Improving on the time-tested concept of converting rotary movement into linear motion, the screw jack is ideal for a variety of industrial lifting and handling applications. Machine screw jacks actuators offer precise positioning, uniform lifting speeds and capacity up to 100 tons. Standard model configurations include upright or inverted units with translating or rotating lifting screws. End configurations include top plate, plain, threaded, and clevis ends. | |||||||||
JTW-20T
JACTON
Product Description
Classic Machine Screw Jack 20 Ton-65x12-Trapezoidal Screw. Machine Screw jacks are used for positioning loads in numerous applications, however when the load direction alternates between tension and compression within the operating cycle and a high position accuracy must be maintained then a specific type of screw jack is required. Machine Screw Jack Systems offer comprehensive lifting, pushing, pulling and position holding with precision for design solutions in a wide variety of industries. Highly accurate and extremely reliable machine screw jacks are matched with an extensive range of drive, connection, motion control, safety, and protection components to provide a complete package from a single source.
Main Features
* Maximum static load capacities 20 ton.
* Self-locking trapezoidal screw sizes Tr 65x12.
* Two gear ratios: high ratio 8:1, slow ratio 24:1 for high and slow linear speeds.
* 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 20 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.
Download
Speficications | Dimensional Drawings | Selection Guide | Catalog
Application Case
Worm gear machine screw jacks are prefabricated parts used in engine construction and plant engineering. They are used in presses, elevating platforms, jack-up platforms, theater stages, working platforms, hoisting tackles, roll adjustments, feeding attachments, tipping devices, work benches, and loading platforms. They are also used as driving mechanism for shutters, slides, landing stages, lock-gates, in airport technology etc. Expediently design, precisely manufactured according to the latest standards highly efficient and long-lasting, spindle gears type jacton worm gear screw jacks are holding an irreplaceable position in the market and have become a fundamental building block for the constructing engineer of today.
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.
