M-SERIES IMPERIAL STAINLESS STEEL MACHINE SCREW JACKS
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Basic Information
Model |
OP |
ST |
SC |
Lifting Screw |
Weight with base travel of 6” (lb) |
Weight for each additional 1” |
Drawing (DWG,DXF or PDF) |
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Diameter |
Pitch |
Form |
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M1802 |
0.66 |
1.33 |
2 |
1 |
0.25 |
Acme |
17 |
0.33 |
On request |
M1805 |
1.66 |
3.33 |
5 |
1.5 |
0.375 |
Square |
35 |
0.85 |
On request |
M1810 |
3.33 |
6.66 |
10 |
2 |
0.5 |
Square |
52 |
1.4 |
On request |
M1815 |
5.00 |
10.00 |
15 |
2.25 |
0.5 |
Square |
66 |
1.5 |
On request |
M1820 |
6.66 |
13.33 |
20 |
2.5 |
0.5 |
Square |
93 |
2.6 |
On request |
M1825 |
8.33 |
16.66 |
25 |
3.375 |
0.666 |
Square |
181 |
3.5 |
On request |
M9035 |
11.66 |
23.33 |
35 |
3.75 |
0.666 |
Acme |
240 |
3.7 |
On request |
M1850 |
16.66 |
33.33 |
50 |
4.5 |
0.666 |
Square |
410 |
5.5 |
On request |
M1899 |
33.33 |
66.66 |
100 |
6 |
0.75 |
Square |
1200 |
9 |
On request |
OP – Operating |
Performance Information
Gear Ratio - Option 1
Model |
Worm Gear Ratios |
Turns of worm For 1" Travel |
Max HP per Screw Jack |
Start-Up Torque at Full Load (in.lb) |
Screw Jack Efficiency |
M1802 |
6:1 |
24 |
2 |
120 |
0.232 |
M1805 |
6:1 |
16 |
4 |
450 |
0.221 |
M1810 |
8:1 |
16 |
5 |
950 |
0.220 |
M1815 |
8:1 |
16 |
5 |
1430 |
0.202 |
M1820 |
8:1 |
16 |
5 |
2050 |
0.188 |
M1825 |
10 2/3:1 |
16 |
8 |
3360 |
0.164 |
M9035 |
10 2/3:1 |
16 |
8 |
4000 |
0.158 |
(for keyed and anti-backlash models consult Screw Jack) |
Gear Ratio - Option 2
Model |
Worm Gear Ratios |
Turns of worm For 1" Travel |
Max HP per Screw Jack |
Start-Up Torque at Full Load (in.lb) |
Screw Jack Efficiency |
M1802 |
24:1 |
96 |
0.5 |
50 |
0.133 |
M1805 |
24:1 |
64 |
0.75 |
185 |
0.121 |
M1810 |
24:1 |
48 |
1.5 |
490 |
0.140 |
M1815 |
24:1 |
48 |
1.5 |
820 |
0.129 |
M1820 |
24:1 |
48 |
1.5 |
1170 |
0.120 |
M1825 |
32:1 |
48 |
2.5 |
1900 |
0.092 |
M9035 |
32:1 |
48 |
2.5 |
2400 |
0.089 |
M1850 |
32:1 |
48 |
6 |
4200 |
0.083 |
M1899 |
36:1 |
48 |
11 |
8600 |
0.080 |
(for keyed and anti-backlash models consult Screw Jack) |
Model Numbers
Prefix |
Model Type |
Series |
Model |
Stroke (mm) |
Suffix |
K = Keyed Lifting Screw S = All Stainless Steel Screw Jack |
Translating Screw Jacks Rotating Screw Jacks |
M |
Translating Screw Jacks Inverted = Decrease model number 1, e.g. 1804 Anti-Backlash = Replace first digit of model number 4, e.g. 4805 Rotating Screw Jacks |
XXX |
1 = Option 2 Gear Ratio B = Bellows Boot G = Second Guide L = Left Hand Worm Shaft Only R = Right Hand Worm Shaft Only X = No Bottom Pipe, Guide Bush Instead |
