JiaCheng is a company with comprehensive experience in manufacturing MECHANICAL WORM GEAR SCREW JACKS, and complete screw jack.
Determination of type
1. Type 1 = Screw jack with translating screw
Type 2 = Screw jack with travelling nut
2. Size = 2.5, 5, 10, 15, 20, 25,35 (×10KN)
3. M = Low worm gear ratio with single start lifting screw
P = High worm gear ratio with single start lifting screw
4. Direction of lifting screw
A = Upright
B = Inverted
5. Lifting screw end execution
I = Column end
II = Top flange
III = Threaded end
IV = Clevis end
6. Stroke
= mm
7. Bellows
1. PVC bellow
2. Other bellows, specify in order
8. Options
F = Locked against rotation
Example
SWL 2.5 - M - 1 - A - II - 250 - F
Type Size Ratio Type Direction End execution Stroke
Detailed Product Description
Model | SWL2.5 | SWL5 | SWL10 | SWL15 | SWL20 | SWL25 | SWL35 |
Max Capacity (KN) | 25 | 20 | 100 | 150 | 200 | 250 | 350 |
Lifting screw | Tr30*6 | Tr40*7 | Tr58*12 | Tr58*12 | Tr65*12 | Tr90*16 | Tr100*20 |
Ratio (P) | 6:1 | 8:1 | 23:3 | 23:3 | 8:1 | 32:3 | 32:3 |
Ratio (M) | 24:1 | 24:1 | 24:1 | 24:1 | 24:1 | 32:1 | 32:1 |
Raise per revolution (mm) (P) | 1.0 | 0.875 | 1.565 | 1.565 | 1.56 | 1.5 | 1.875 |
Raise per revolution (mm) (M) | 0.250 | 0.292 | 0.5 | 0.5 | 0.5 | 0.5 | 0.625 |
Start torque on lifting screw at max load | 250 | 385 | 500 | 400 | 490 | 850 | 820 |
400 | 770 | 1000 | 800 | 980 | 1700 | 1640 | |
Starting torque/Handwind torque at max load (Nm) (P) | 18 | 39.5 | 119 | 179 | 240 | 368 | 464 |
Starting torque/Handwind torque at max load (Nm)(M) | 8.86 | 19.8 | 60 | 90 | 122 | 217 | 253 |
Running efficiency (%)(P) | 33 | 23 | 20.5 | 20.5 | 19.5 | 16 | 18 |
Running efficiency (%) (M) | 11 | 11.5 | 13 | 13 | 12.8 | 9 | 11 |
Weight without spindle or protection tube (Kg) | 7.3 | 16.2 | 25 | 25 | 36 | 70.5 | 87 |
Weight of lifting screw 100 mm (kg) | 0.45 | 0.82 | 1.67 | 1.67 | 2.15 | 4.15 | 5.20 |
Lubrication | ZGN-1 or ZGN-2 (-20-+100) | ||||||
Grease quantity | 0.1 | 0.3 | 0.5 | 0.5 | 0.75 | 1.1 | 1.9 |
*) The holding torque is the torque on the input shaft which is required to prevent the load from being lowered.
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