5 ton manual screw jacks 6 1 ratio 12 inch wheel handle gear jack

High quality 5 ton manual screw jacks 6:1 ratio 12 inch wheel handle gear jack for US customers order. Specifications: 5 tons capacity, upright translating screw, gear ratios 1:6, self-locking screw Tr40x7, stroke 150mm, clevis end, dual input shafts, cast iron hand wheel 300mm diameter, protective tube and bellows boots.


Structures and Materials
- Trapezoidal screw material - C45 steel. Customized stainless steel 304, 316.
- Worm shaft material - C45 steel, heat treatment. Customized stainless steel 304, 316.
- Worm gear material - high strength bronze.
- Housing material - ductile iron, available in stainless steel 304. 
- Traveling nut - high strength bronze.
- Safety nut - high strength bronze.  

  
Specifications
The specifications include maximum load capacity, worm screw diameter and pitch, worm gear ratio, allowable maximum input power, torque and speed and overall efficiency etc. 

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.
2. Conditions: 20% running time/60 minutes or 30% running time/10 minutes, 20 °C ambient temperature. Maximum allowable input power 1.1kw. 
3. H=high ratio 6:1 (1.167mm stroke for one input turn), L=slow ratio 24:1 (0.292mm stroke for one input turn).
4. Nm=input torque required, kW=input power required. 

Assembly Drawings
Find out front view, side view and top view assembly drawings. About 2D Autocad dwg, dxf assembly drawings, and 3D stp, step, model, igs, prt or catpart assembly drawings of 5 ton capacity mechanical actuators worm screw, please contact us directly.


Packages and Shipping
- 100% Standard exporting plywood cases (international exporting standard wooden material with free fumigation). 
- Express(Air): Door to door by Air like FEDEX, DHL, UPS, TNT. Incoterms: EXW, DDU. 
- Sea Freight: To destination seaport by Vessel. Incoterms: CIF, FOB, EXW, CFR. 
- Air Freight: To destination airport by Airplane. Incoterms: CFR, EXW, FCA, CPT, CIP. 


How to Correctly Select a Complete Part Number and Place an Order


1. Model Number
- JTW-5T, Maximum static load capacity 5 tons.
- Self-locking Trapezoidal screw diameter 40mm, pitch 7mm.  
- Important Note: Under compression load, screw jack with long stroke, must check the permissible buckling load. 

2. Jack Configuration and Jack Designs
- US: Upright mount, Translating Screw Design.
- IS: Inverted mount, Translating Screw Design.
- UR: Upright mount, Rotating Screw Design.
- IR: Inverted mount, Rotating Screw Design.
- UK: Upright mount, Anti-rotation Keyed Screw Design.
- IK: Inverted mount, Anti-rotation Keyed Screw Design.

Important Note: The lifting screw of Translating Screw Jack (US or IS) must be attached to the guided load which prevents the lifting screw from rotating. To add the linear guides, linear rails or rolls are recommended.
- Important Note: If your application involves a load which is unattached, unguided or the load is free to rotate and not translate, then an Anti-rotation Keyed Screw Jack (UK or IK) are required to prevent lifting screw rotation (not recommended).
- Important Note: Double Lead Screw is not self-locking, may lower under load. Brake motors or external locking systems are recommended. 
- Available in Double Clevis Machine Screw Jack, and Trunnion Mounting Machine Screw Jack (pivoting load). 

3. Stroke
- Stroke is travel expressed in millimeter(mm) or inches and not the actual screw length.  


4. Worm Gear Ratio
- H: High ratio 6:1, one turn of input, travel length 1.167mm
- M: Medium ratio 12:1, one turn of input, travel length 0.583mm
- L: Slow ratio 24:1, one turn of input, travel length 0.292mm
- Customize the worm gear ratios.

5. Screw End Conditions
- Standard Screw End Conditions: top plate(load pad), clevis end(male clevis), plain end, threaded end. Also rod end, and fork head(female clevis) are available. Custom screw ends are acceptable.


6. Input Shaft Codes and Optional Shaft Codes
- Below pictures with Top View. 
- A: Single Input, Left Side Shaft.             
- B: Single Input, Right Side Shaft.        
- C: Double Input Shafts
- M1: Left Side Shaft, Right Side Motor Flange (Motor Mounts).                                   
- M2: Right Side Motor Flange (Motor Mounts).   
- M3: Right Side Shaft, Left Side Motor Flange (Motor Mounts).                   
- M4: Left Side Motor Flange (Motor Mounts).   


7. Additional Options
- Connection Devices: Couplings. Universal joints. Telescopic universal joints. Connecting shafts.
- Screw Protective Devices: Bellows boot. Telescopic spring covers. Rigid Protective tubes.
- Manually operation by Aluminum handwheels, or Cast iron handwheels.
- Motorized driven (AC or DC) by asynchronous motors (normal, YEJ brake, YVP variable frequency, B explosion proof, D multi-speed), stepper motors, servo motors with encoders and controllers. IEC motor flange or NEMA C-Face motor adapter for connect with motors. Frequency inverters.
- Safety Devices: Limit switches. Proximity switches. Safety nuts. Anti-backlash nut. Overload safety couplings. Stop nuts. Position Encoders. Overload clutch. Brake motor. Linear braking elements. Wear detection/monitors. Linear guides and rails. Potentiometer. Pressure sensor.
- Others Accessories: Travel nuts. Position indicators. Trunnion adapter plates. Trunnion mounting brackets. Pillow blocks. Flange blocks. Rod end bearings.


Select or construct a Complete Part Number and Order Quantity of the 5 ton manual screw jacks you wish to purchase. Request A Quote Online directly. We will quote you ASAP.