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250 kN Cubic Machine Screw Jack's housings are made of cast iron or rather ductile graphite iron (other materials and surface treatments are available upon request). If required, we can supply the housings in stainless steel. Machining the housing on all faces allows various mounting options. Screw jacks are grease filled as standard. | |||||||||
JTC250
JACTON
Product Description
Cubic Machine Screw Jack 250 kN-80x10-Trapezoidal Screw. Ductile cast iron in the compact design. A mechanical screw jack is used where precisely controlled linear movement and positioning are needed. The jacks offer Translating, Keyed or Rotating functionality in addition to a number of other gearbox and screw end options.
Main Features
* Maximum static load capacities 250 kN (25000kg).
* Self-locking trapezoidal screw sizes Tr 80x10.
* Two gear ratios: high ratio 10:1, slow ratio 40:1.
* 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.
* Screw end fittings: top plate, clevis end, threaded end, plain end, fork head and rod end.
* Power source: manual hand wheel, electric motor, or both together.
* Single unit or multiple screw jack systems with synchronized lifting, linked by connecting shafts, bevel gearboxes, couplings, electric motors, gear reducers, limit switches and pillow blocks etc.
Product Material
We use the best materials to guarantee the performance and lifetime of the 250 kN Cubic Machine Screw Jack you purchased.
* Housing: Ductile Cast Iron.
* 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
The jobs that worm gear screw jacks are expected to do are as varied as their applications: lifting, lowering, tipping or moving. But in each case, the different sectors of industry and the different power parameters require a powerful, reliable screw jack that is easy to adapt to the specific application, and to extend to a complete worm gear screw jack system. Such as Scissor-lift system, Positioning device, Lifting device for an automatic bar-machining installation.
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
