Product Description
SJB Ball Screw Series Screw Jack
Feature
- Linear speed: up to 75mm/s
- Input speed:1800rpm
- Stroke:up to 6.5m
- Precise positioning :0.02mm/300mm
- Uniform lifting speed
- Quick, sure operation
- with Ball screw and unself-locking function
- Operating duty cycle up to 50% over a 10 minute period (normal:30%)
Product parameters
Size | SJB10 | SJB20 | SJB21 | SJB22 | SJB50 | SJB51 | SJB80 | SJB81 | SJB100 | SJB101 | SJB200 | SJB201 | SJB300 |
Max lifting load [kN] | 10 | 20 | 20 | 20 | 50 | 35 | 60 | 60 | 80 | 70 | 90 | 100 | 150 |
Dynamic load | 11 | 17 | 25 | 25 | 46 | 30 | 53 | 56 | 71 | 62 | 78 | 97 | 111 |
Screw dia x pitch [mm] | 20×5 | 32×5 | 32×10 | 32×20 | 40×10 | 40×20 | 50×10 | 50×20 | 63×10 | 63×20 | 80×10 | 80×20 | 100×20 |
Worm ratio | V1 | 1.4 | 1.6 | 1.6 | 1.6 | 1.7 | 1.7 | 1:8 | 1:8 | 1:8 | 1:8 | 1:8.75 | 1:8.75 | 1:10.25 |
L1 | 1:16 | 1:24 | 1:24 | 1:24 | 1:28 | 1:28 | 1:32 | 1:32 | 1:32 | 1:32 | 1:35 | 1:35 | 1:41 |
Stroke for one input turn [mm] | V1 | 1.25 | 0.83 | 1.67 | 3.34 | 1.43 | 2.86 | 1.25 | 2.5 | 1.25 | 2.5 | 2.28 | 2.28 | 1.95 |
L1 | 0.31 | 0.21 | 0.42 | 0.84 | 0.36 | 0.72 | 0.31 | 0.62 | 0.31 | 0.62 | 0.58 | 0.58 | 0.488 |
Max input power [kW] | V1 | 0.57 | 1.14 | 1.14 | 1.14 | 2.2 | 2.2 | 2.5 | 2.5 | 3 | 3 | 4 | 4 | 7 |
L1 | 0.27 | 0.55 | 0.55 | 0.55 | 1.1 | 1.1 | 1.5 | 1.5 | 2.2 | 2.2 | 3.5 | 3.5 | 5.5 |
Max starting torque at full load [Nm] | V1 | 4.8 | 8.2 | 15.3 | 29.2 | 34.4 | 47.4 | 36.8 | 72.3 | 49.0 | 82.9 | 53.2 | 118 | 157 |
L1 | 1.8 | 3.4 | 6.3 | 12.1 | 14.6 | 19.4 | 15.3 | 29.9 | 20.4 | 34 | 23.4 | 52 | 66.7 |
Starting efficiency | V1 | 41 | 32 | 35 | 36 | 33 | 34 | 32 | 33 | 32 | 34 | 31 | 31 | 30 |
L1 | 27 | 20 | 21 | 22 | 20 | 21 | 20 | 20 | 20 | 21 | 18 | 18 | 18 |
Torque withoutload [Nm] | V1 | 59 | 58 | 62 | 65 | 59 | 60 | 58 | 59 | 58 | 60 | 55 | 55 | 53 |
L1 | 42 | 39 | 42 | 44 | 39 | 41 | 39 | 40 | 39 | 41 | 35 | 35 | 35 |
Housing material | Spheroidal graphite iron |
Weight [kg] | 6 | 9.5 | 9.5 | 10 | 23 | 24 | 38 | 40 | 62 | 64 | 78 | 78 | 125 |
Weight per 100mm screw & protective tube [kg] | 0.5 | 0.8 | 0.8 | 0.8 | 1.6 | 1.6 | 2.5 | 2.5 | 3.2 | 3.2 | 4.6 | 4.6 | 7.3 |