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| Approximately 50% of 15 Ton Machine Screw Jacks are self-locking either in the gearbox or the lifting screw, however to ensure there is no self lowering and to reduce drift due to the motor slowing, a brake is recommended. Standard motor frame size brakes will be suitable for most applications with only slight vibration and thermal fluctuation present. Motor selection as normal. Use the closest standard brake size that is greater or equal to the motor brake torque required. | |||||||||
JTW-15T
JACTON
Product Description
Classic Machine Screw Jack 15 Ton-58x12-Trapezoidal Screw. Linear Power Jacks (Machine Screw Type) is a standard model, suitable for low speed, low frequency operations. Major components include jacton trapezoidal screw and high precision worm gear. Simple, compact and affordable. The unique sliding motion of trapezoidal screw provides smooth and consistent low speed, suitable for low frequency operations. Machine screw has a self-lock feature based on calculation, and can maintain loads.
Main Features
* Maximum static load capacities 15 ton.
* Self-locking trapezoidal screw sizes Tr 58x12.
* Two gear ratios: high ratio 8:1, slow ratio 24:1 for high and slow linear speeds.
* Custom stroke length, maximum stroke 4000 mm in compression load, 5000 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 15 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.
