Joyce MWJ2410 - Manual (Page 9)

9
3-3 Specifications
Model Number
MWJ51
MWJ201
MWJT62.5
MWJT122.5
MWJT242.5
MWJT65
MWJT125
MWJT245
MWJ810
MWJ2410
Capacity 10 kN 25 kN 50 kN 100 kN
Screw Tr 20 x 5 30 x 6 40 x 9 55 x 12
Worm Gear Ratio
5:1
20:1
6:1
12:1
24:1
6:1
12:1
24:1
8:1
24:1
Worm Shaft Turns
for 1 mm
1
4
1
2
4 0.67
1.33
2.67
0.67
2
Tare Torque (Nm) 0.33 0.67 1.13 2.26
Starting Torque
(Nm)
95 W*
41 W*
1.01 W*
0.62 W*
0.44 W* 1.64 W*
1.03 W*
0.74 W*
1.53 W*
0.76 W*
Operating Torque
(Nm) @ Worm RPM
0.70 W*
0.23 W*
@ 500 RPM
0.81 W*
0.45 W*
0.27 W*
@ 500 RPM
1.14W*
0.64 W*
0.39 W*
@ 300 RPM
1.18 W*
0.49 W*
@ 200 RPM
Screw Torque (Nm) 2 W* 3 W* 4 W* 5 W*
Efficiency Rating %
approx.
22.7 %
17.0 %
19.6 %
17.8 %
14.7 % 20.9 %
18.7 %
15.2 %
20.2 %
16.1 %
Basic Jack Weight
(Kg)
2.7 6.8 14.5 19.5
Add to Basic Jack
Weight (Kg) for
each Additional
25 mm of Travel
0.14 0.18 0.32 0.59
*W = Load in k N
Screw Torque is the force required to keep the screw from rotating.
Operating torque for a given load increases as speed decreases