| Aero-Motive Reels, Balancers |
| Coffing Hoists Hoists, Hoist Repair |
| CM Hoists Chain Hoists, Wire Rope, Ratchet Levers, Trolley |
| Conductix Power and Data Transfer Systems |
Demag
Overhead Cranes
Hoists and Winches Gearmotors
Ergonomic Systems |
| Duff-Norton Mechanical Actuators, Rotary Unions, Electromechanical Actuators |
| Equipto Storage Systems |
| Hamilton Caster Casters, Hand Trucks |
Harrington Hoists
Chain & Wire Hoists |
| Joyce/Dayton Jacks, Actuators |
| Lyon Tool Storage, Locker Units |
| Perfecting Coupling |
| Ram-Pac Hydraulic Tools |
| Simple Green Degreasing Systems |
Stanley Bostitch
Pneumatic Tools, Fasteners |
| In-Plant Offices, Mezzanines |
 |
| |
|
Machine
Screw Jacks
2 Ton Capacity |
|
| Model
Number |
(R) WJT62
(R) WJT122
(R) WJT 242 |
(R) DWJ62
(R) DWJ122
(R) DWJ242 |
| .pdf
Drawing (Acrobat Reader Required) |
View .pdf
Drawing |
View .pdf
Drawing |
| Lifting
Screw Diameter (Inches) |
1 |
1 |
| Thread
Pitch/Lead |
.250 PITCH
ACME |
.250 PITCH
.500 LEAD ACME |
| Worm Gear
Ratio |
6:1
12:1
24:1 |
6:1
12:1
24:1 |
| Worm
Shaft Turns For 1" Travel |
24
48
96 |
12
24
48 |
| Maximum
H.P. @ Worm RPM |
1.81
1.21
.66 |
1.81
1.21
.66 |
| Operating
Torque* (Inch Lbs.) @ Worm RPM |
.028W*
.015W*
.009W*
@ 500 RPM |
.039W*
.022W*
.013W*
@ 500 RPM |
| Screw
Torque** (Inch Lbs.) |
.098W* |
.139W* |
| Efficiency
Rating % Approx. |
24.2
22.0
18.3 |
33.7
30.5
25.4 |
| Basic
Jack Weight (Lbs.) |
15 |
16 |
| Add to
Basic Jack Weight (Lbs.) For Each Additional 1" Of Travel |
.3 |
.3 |
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. |
|
|
|
