2.5 Tons Stainless Steel Machine Screw Jacks are typically used in harsh or corrosive environments or those with a regular wash down requirement. Industries such as Marine, Water Treatment, Nuclear, Food Processing, Offshore, Pulp and Paper use stainless steel screw jacks. For each application, variants with different material grades or plated components can be used, tailoring the product for the specific application and budget.
1. Upright or inverted units with maximum static load capacity 2.5 ton in tension or compression.
2. With higher ratios are inherently self-locking and will hold the loads without creep as long as the screw jack is not subject to vibration.
3. Lifting screw with 30mm diameter, 6mm pitch (single start trapezoidal screw thread).
4. Available in 6:1 and 24:1 ratios.
5. Custom travel lengths from 10mm to 2000mm.
6. Translating lifting screws (stainless steel travelling screw jacks), keyed lifting screws for anti-rotation (stainless steel keyed screw jacks), and rotating lifting screws with traveling nut (stainless steel travelling nut screw jacks) as the standard configurations.
7. Worm screw (input shaft) is rotated by a handwheel with handle (manually operated screw jack) or by a gear motor (electrically operated screw jack).
8. Can be applied either individually use or in tandem or in multiple arrangements for exactly synchronized lifting system, linked by connecting shafts, bevel gears and couplings etc.
We use the best materials to guarantee the performance and lifetime of the stainless steel screw jacks you purchased.
- Trapezoidal screw material - stainless steel 304 as standard, custom stainless steel 316.
- Worm shaft material - stainless steel 304 as standard, custom stainless steel 316.
- Worm gear material - bronze.
- Housing material - stainless steel 304 as standard.
- Traveling nut or Safety nut - bronze.
- Bearings: bearing steel as standard. custom stainless steel 304.
- Covers of worm shaft: stainless steel 304, custom stainless steel 316.
- Covers of housing: stainless steel 304, custom stainless steel 316.
- Protective tube: stainless steel 304, custom stainless steel 316.
- Locking screws: stainless steel 304, custom stainless steel 316.
- Lifting screw ends (top plate, clevis end, threaded end, plain end, fork end or rod end): stainless steel 304, custom stainless steel 316.
- Motor flanges: stainless steel 304, custom stainless steel 316.



1. Note: The dark gray figures in the tables indicates operational restrictions due to thermal limits. Selection of screw jacks using these figures should only be carried out in consultation with our engineers. When your selection is made within the areas shaded dark gray, you will need to reduce duty cycle or choose the bigger size screw jack in order to allow effective heat dissipation.
3. H=high ratio 6:1, L=slow ratio 24:1.
4. Nm=input torque required, kW=input power required. Find out stainless steel screw jack 2.5ton capacity front view, side view and top view assembly drawings.

* Free 2D AutoCAD Assembly Drawings (PDF, DWG, DXF Format).
* Free 3D CAD Model Assembly Drawings (STP/STEP, IGS/IGES, SLDPRT, MODEL, CATPART Format).
Before packing, all Customers' orders will be inspected following Production Drawings and Inspection Report.* Inspection of Screw Jack: model, screw diameter, screw pitch, installation type, basic design, stroke length, screw end types, wormgear ratio, worm shaft diameter, input shaft types, motor flange types, accessories, lubrications, housing color, orders with special requirements, smooth lifting.
* Inspection of Bevel Gearbox: model, input shaft diameter, output shaft(solid or hollow) diameter, input flange dimensions, shaft arrangements, rotation directions, mounting positions, gear ratios, accessories, lubrications, housing color, orders with special requirements.
* Inspection of Lifting System: except above points, must inspect the order quantities of jacks, gearboxes and others.


* 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.

* America: United States, Mexico, Canada, Chile, Bolivia, Brazil, Colombia, Dominican Republic, Honduras, Argentina, Peru.
* Europe: Russia, Germany, Turkey, France, United Kingdom, Italy, Spain, Ukraine, Poland, Romania, Netherlands, Belgium, Greece, Czech Republic, Portugal, Sweden, Hungary, Belarus, Austria, Switzerland, Bulgaria, Denmark, Finland, Slovakia, Norway, Ireland, Croatia, Georgia, Armenia, Lithuania, Slovenia, Estonia, Cyprus, Luxembourg, Iceland.
* Australia: Australia, New Zealand, Fiji.
* Africa: South Africa, Egypt, Ethiopia, Nigeria.

