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JTS-Series Bevel Gear Jacks

Bevel gear design eliminates the need for miter gear boxes in multi-jack systems. This design allows higher travel speeds and higher duty cycles. Single-lead machine screw bevel gear jacks are considered self-locking and the lower internal gear ratio permit faster travel speeds (and higher duty cycles) than worm gear screw jack counterparts. Bevel ball jacks achieve fast travel speeds and are rated for near continuous operation.
Bevel gear high speed screw jacks are precision screw jacks are by the use of spiral bevel gear sets. These bevel gears are lapped together in pairs. High quality alloy steel is used in their manufacture and they are case hardened. Robust rolling bearings support the input shaft and the lifting spindle axis giving a long and trouble free life. bevel gear high speed screw jacks provide a fast lifting speed with ball screw and trapezoidal spindle. Due to the high efficiency of the integral bevel gears a high overall efficiency is provided.

JTS-Series Bevel Gear Jacks
 Key Features
1. With 8 sizes, lifting capacities from 25 kN to 500 kN as Standard
2. Translating and Rotating Screw configurations, Anti-rotation (keyed) design option.
3. Two Gear ratios and single screw leads as standard. Customized double screw leads.
4. Bevel gear machine screw jacks and bevel gear ball screw jacks are option.
5. 
Higher efficiency and greater speed than other worm gear screw jacks.
6. As an added benefit, bevel gear jacks also act as bevel gearboxes, making them an ideal choice for multiple units bevel gear jacks lifting systems.


JTS-Series Bevel Gear Jacks Specifications
Model JTS25 JTS50 JTS100 JTS150 JTS200 JTS250 JTS350 JTS500
Max. lifting force (KN) 25 50 100 150 200 250 350 500
Lifting screw diameter (mm) 30 40 58 58 65 90 105 120
Lifting screw pitch (mm) 6 7 12 12 12 16 16 16
Transmission ratio (H) 1:1 1:1 1:1 1:1 1:1 1:1.5 1:1.5 1:1.5
Lift screw travel (mm), per turn of input shaft (H) 6 7 12 12 12 10.667 10.667 10.667
Efficiency % (H) 25 25 25 25 25 21 19 18
Transmission ratio (L) 1:2 1:2 1:2 1:2 1:2 1:2.5 1:2.5 1:2.5
Lift screw travel (mm), per turn of input shaft (L) 3 3.5 6 6 6 6.4 6.4 6.4
Efficiency % (L) 25 25 25 25 25 21 19 18
Full Load, Permissible input torque (N.m) 92(H)
46(L)
232(H)
116(L)
730(H)
365(L)
1095(H)
548(L)
1528(H)
764(L)
2020(H)
1212(L)
3045(H)
1828(L)
4712(H)
2828(L)
Max. Permissible input power (kw) 0.54 1.3 2.2 3.6 3.6 5.5 7.9 11.3
Full Load, Max. Stroke (mm, unguided) 250 385 400 500 600 850 900 1000
Full Load, Max. Stroke (mm, guided) 400 770 800 1000 1200 1700 1800 2000
Gearbox Weight (kg, without stroke) 42 78 112 112 148 265 340 450
Lifting Screw Weight (kg), per 100mm stroke 0.45 0.85 1.7 1.7 2.2 4.5 6 8
Lubrication Weight (kg) 0.6 1 3.3 3.3 4.8 8.4 11.5 18.5
Remarks:
1. H: high ratio, L: low ratio
2. Efficiency is under grease lubrication.