Screw Jack
Ball Screw Jack
Outline
Using a ball screw jack it has a high efficiency, and is the best for use in high-speed operation environments.
Features
- – This type of jack does not have a self-locking function, so it is required to install a brake.
- – Capacity: 10kN~1000kN
- – The jack consists of a high-precision worm gear and a ball screw; and realizes high speed and high efficiency by using rolling friction.
- – We can also manufacture a jack with anti-rotation mechanism which prevents its lifting screw from drag turning.
- – Wide-ranging options are available, including dustproof bellows to protect the lifting screw, limit switch for control, and RC encoder.
Standard Specifications
| Series/Size Code | J0B | J1B | J2B | J3B | J4B | J5B | J6B | JFB | J7B | |
|---|---|---|---|---|---|---|---|---|---|---|
| Capacity | 10kN | 25kN | 50kN | 100kN | 200kN | 300kN | 500kN | 750kN | 1000kN | |
| Lifting screw diameter | 20mm | 25mm | 36mm | 45mm | 60mm | 80mm | 100mm | 120mm | 140mm | |
| Lifting screw lead | 5mm | 8mm | 10mm | 12mm | 16mm | 20mm | 24mm | 28mm | 32mm | |
| Worm gear ratio | H | 5 | 6 | 6 | 8 | 8 | 10 2/3 | 10 2/3 | 10 2/3 | 12 2/3 |
| L | 24 | 24 | 24 | 24 | 24 | 32 | 32 | 38 | 36 | |
| Effciency | H | 0.64 | 0.61 | 0.61 | 0.59 | 0.6 | 0.61 | 0.6 | 0.61 | 0.62 |
| L | 0.36 | 0.38 | 0.35 | 0.43 | 0.44 | 0.41 | 0.39 | 0.39 | 0.38 | |
| Maximum allowable power per jack | 0.75kW | 1.3kW | 2.5kW | 3.7kW | 6kW | 9.5kW | 14kW | 17kW | 22kW | |
| Input shaft torque at no load (b) | 0.3N・m | 1N・m | 2N・m | 3N・m | 5N・m | 10N・m | 20N・m | 30N・m | 40N・m | |
| Torque coefficient (a) | H | 0.25 | 0.35 | 0.43 | 0.4 | 0.53 | 0.49 | 0.6 | 0.68 | 0.65 |
| L | 0.09 | 0.14 | 0.19 | 0.18 | 0.24 | 0.25 | 0.3 | 0.3 | 0.37 | |
| Required input torque at maximum load | H | 2.8N・m | 9.7N・m | 24N・m | 43N・m | 111N・m | 157N・m | 319N・m | 542N・m | 685N・m |
| L | 1.2N・m | 4.5N・m | 12N・m | 21N・m | 53N・m | 84N・m | 172N・m | 256N・m | 412N・m | |
| Required input torque at maximum load | H | 1.5N・m | 5N・m | 13N・m | 21N・m | 56N・m | 80N・m | 160N・m | 180N・m | 370N・m |
| L | 0.18N・m | 0.7N・m | 1.5N・m | 3.5N・m | 10N・m | 9N・m | 14N・m | 15N・m | 21N・m | |
| Worm rotation per 10mm of stroke | H | 10 | 7.5 | 6 | 6.7 | 5 | 5.3 | 4.4 | 3.8 | 3.9 |
| L | 48 | 30 | 24 | 20 | 15 | 16 | 13.3 | 13.6 | 11.2 | |
| Speed coefficient (c) (screw lead per rotation of input shaft) |
H | 1.0mm | 1.33mm | 1.67mm | 1.50mm | 2mm | 1.87mm | 2.26mm | 2.62mm | 2.53mm |
| L | 0.21mm | 0.33mm | 0.42mm | 0.5mm | 0.67mm | 0.63mm | 0.75mm | 0.74mm | 0.89mm | |
| Maximum allowable input rotation speed (over 1000min-1 must be oil lubruicated) |
1800min-1 | 1800min-1 | 1800min-1 | 1800min-1 | 1800min-1 | 1800min-1 | 1800min-1 | 1800min-1 | 1800min-1 | |
| Anti-rotation key torque at maximum load | 5N・m | 15N・m | 45N・m | 115N・m | 300N・m | 600N・m | 1250N・m | 2250N・m | 3500N・m | |
| Input shaft allowable overhang load | 300N | 450N | 700N | 1200N | 1200N | 2200N | 2500N | 2500N | 3000N | |
| Amount of filled grease | 0.15kg | 0.35kg | 0.8kg | 1.5kg | 2.3kg | 4.5kg | 6kg | 12kg | 15kg | |
| Operating temperature range | -15〜80℃ | -15〜80℃ | -15〜80℃ | -15〜80℃ | -15〜100℃ | -15〜100℃ | -15〜100℃ | -15〜100℃ | -15〜100℃ | |
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Screw Jack
