SJM5 Machine Screw Jack
  • SJM5 Machine Screw Jack

SJM5 Machine Screw Jack

Use range
SJM5 Machine Screw Jack, China Machine Screw Jack Supplier



Product Details

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
5


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.
IMG_256


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
IMG_256


7:  Accessories
N: Standard Jack, No additional accessories
P: Protective Tube
R: Dust Cover
Y: Hand Wheel
Other accessories,please check below picture



4


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