SJM5 Machine Screw Jack Quick Information:
1. Jack Model: SJM5
2. Screw Diam.: 40mm
3. Screw Pitch: 7mm
4. Max load capacity: 50KN
5. Speed Ratio: 1/6, 1/24
6. Max permissible power: 2.59KW
7. Screw Top End: Top Plate,Clevis End,Threaded End,Plain End, Forked Head and Spherical hinge.
8. Translating screw, rotating screw, keyed screw configurations in upright or inverted mounting orientation.
9. Power Source: Electric Driven,Manual Operated or Both Are Available
10. Screw Type: Trapezoidal Screw
11. Individually or multiple screw jack lift system arrangements are available
12. Precisely positioning, self-locking trapezoidal screw which supports the loads and hold position with no need to employ brake mechanism or other locking systems.
SJM5 Machine Screw Jack Applications:
SJM5 Machine Screw Jack Specifications:
Jack Model |
SJM5 |
| Max. Lifting Force ( KN ) | 50 |
| Max. Pulling Force( KN ) | 50 |
| Lift Screw Size( mm ) | Tr40×7 |
| Gear Ratio ( H ) | 1/6 |
| Travel length(mm) per full turn of worm Shaft ( H ) | 1.167 |
| Efficiency % ( H ) | 21 |
| Gear Ratio ( L ) | 1/24 |
| Travel length(mm) per full turn of worm Shaft ( L ) | 0.292 |
| Efficiency % ( L ) | 12 |
| Max. Length of lifting screw (mm), when tensile force | 2000 |
| Max. Permissible power ( KW ) | 2.59 |
| Lubricant ( kg ) | 0.25 |
| Weight without stroke ( kg ) | 16.2 |
| Weight of screw ( kg ), per 100mm stroke | 0.82 |
| Remarks: 1: H: high ratio, L: low ratio. 2: Max. Permissible power is under the conditions that ambient temperature 20 degree c , duty cycle 20%h and input speed 1500rpm. 3: Efficiency is under grease lubrication. 4: Working temperature is -20℃-+80℃. |
|
| SJM5 Machine Screw Jack ( Tr40×7) | ||||||||||
| Speed (rpm) |
Lifting Speed (mm/min) |
F=50KN | F=40KN | F=30KN | F=20KN | |||||
| H | L | H | L | H | L | H | L | |||
| 44.2 N.m | 19.3 N.m | 35.4 N.m | 15.5 N.m | 26.5 N.m | 11.6 N.m | 17.7N.m | 7.7N.m | |||
| H:1/6 | L:1/24 | (KW) | (KW) | (KW) | (KW) | (KW) | (KW) | (KW) | (KW) | |
| 1500 | 1750 | 438 | 6.9 | 3.0 | 5.6 | 2.4 | 4.2 | 1.8 | 2.8 | 1.2 |
| 1000 | 1167 | 292 | 4.6 | 2.0 | 3.7 | 1.6 | 2.8 | 1.2 | 1.9 | 0.8 |
| 750 | 875 | 219 | 3.5 | 1.5 | 2.8 | 1.2 | 2.1 | 0.9 | 1.4 | 0.6 |
| 500 | 583 | 146 | 2.3 | 1.0 | 1.9 | 0.8 | 1.4 | 0.6 | 0.9 | 0.4 |
| 300 | 350 | 88 | 1.4 | 0.6 | 1.1 | 0.5 | 0.8 | 0.4 | 0.6 | 0.2 |
| 200 | 233 | 58 | 0.9 | 0.4 | 0.7 | 0.3 | 0.6 | 0.2 | 0.4 | 0.2 |
| 100 | 29 | 0.5 | 0.4 | 0.2 | 0.4 | 0.2 | 0.3 | 0.1 | 0.2 | 0.1 |
| 50 | 15 | 0.2 | 0.2 | 0.1 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 |
| Speed (rpm) |
Lifting Speed (mm/min) |
F=10KN | F=5KN | F=2.5KN | ||||||
| H | L | H | L | H | L | |||||
| 8.8 N.m | 3.9 N.m | 4.4 N.m | 1.9 N.m | 2.2 N.m | 1.0 N.m | |||||
| H:1/6 | L:1/24 | (KW) | (KW) | (KW) | (KW) | (KW) | (KW) | |||
| 1500 | 1750 | 438 | 1.4 | 0.6 | 0.7 | 0.3 | 0.3 | 0.2 | ||
| 1000 | 1167 | 292 | 0.9 | 0.4 | 0.5 | 0.2 | 0.2 | 0.1 | ||
| 750 | 875 | 219 | 0.7 | 0.3 | 0.3 | 0.2 | 0.2 | 0.1 | ||
| 500 | 583 | 146 | 0.5 | 0.2 | 0.2 | 0.1 | 0.1 | 0.1 | ||
| 300 | 350 | 88 | 0.3 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | ||
| 200 | 233 | 58 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | ||
| 100 | 29 | 0.5 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | ||
| 50 | 15 | 0.2 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | 0.1 | ||
Design, produce and testing:
SJM5 Machine Screw Jack Ordering Information:
1: Jack Model 5:
Max. Load capacity is 50KN
2: Screw Configuration & Mounting Orientation
US: Upright translating screw UK: Upright keyed screw UR: Upright rotating screw
IS: Inverted translating screw IK: Inverted keyed screw IR: Inverted rotating screw
Note: US, IS (Screw rotation, do axial motion) UK, IK (Screw anti-rotation, do axial motion)
UR,IR(Screw fixed rotation, traveling nut do axial motion)
US IS UK IK UR IR
3: Screw Top End
T: Top plate H: Clevis end S: Thread end R: Plain end SH: Spherical hinge U: Forked head
4: Worm Shaft Input Types
A: left side worm shaft input.
B: right side worm shaft input.
C: double worm shaft input.
M1: left side motor flange direct input.
M2: right side motor flange direct input.
M3: left side motor flange direct input, right side worm shaft input.
M4: right side motor flange direct input, left side worm shaft input.
5: Gear Ratio:
SJM5 machine screw jack gear ratio includes 1/6, 1/24
1/6: Fast speed, 1.167mm travel length per full turn of worm shaft.
1/24: Low speed, 0.292mm travel length per full turn of worm shaft
6: Travel Stroke
7: Accessories
N: Standard Jack, No additional accessories
P: Protective Tube
R: Dust Cover
Y: Hand Wheel
Other accessories,please check below picture
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