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Machine
Screw Jacks
15 Ton Capacity |
|
| Model
Number |
WJ815
WJ2415 |
DWJ815
DWJ2415 |
| .pdf
Drawing (Acrobat Reader Required) |
View .pdf
Drawing |
View .pdf
Drawing |
| Lifting
Screw Diameter (Inches) |
2 1/4 |
2 1/4 |
| Thread
Pitch/Lead |
.500 PITCH
ACME |
.333 PITCH
.666 LEAD ACME |
| Worm Gear
Ratio |
8:1
24:1 |
8:1
24:1 |
| Worm
Shaft Turns For 1" Travel |
16
48 |
12
36 |
| Maximum
H.P. @ Worm RPM |
3.53
1.56 |
3.53
1.56 |
| Operating
Torque* (Inch Lbs.) @ Worm RPM |
.047W*
.020W*
@ 200 RPM |
.058W*
.025W*
@ 200 RPM |
| Screw
Torque** (Inch Lbs.) |
.210W* |
.244W* |
| Efficiency
Rating % Approx. |
21.1
16.6 |
34.4
27.0 |
| Basic
Jack Weight (Lbs.) |
57 |
59 |
| Add to
Basic Jack Weight (Lbs.) For Each Additional 1" Of Travel |
1.5 |
1.5 |
Important:
Series DWJ may lower under load. External locking
systems are required.
*W = load in pounds.
* Operating torque: torque required for a given load increases
as speed decreases.
** Screw torque is the force required to keep the screw form
rotating. |
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