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Stainless Steel Machine Screwjack Actuator, 2t to 100t

Model:  SSMS-4050

Part N° Capacity (tons) - 17-4PH Worm Capacity (tons) - 316 SS Worm Weight with 6" Raise (lb) Weight per Additional 1" Raise (lb) Key Torque (in-lb) Guide Price Quantity
4050-T22115 2 0.67 17 0.3 153 Quote Required
4050-T22116 5 1.66 35 0.9 581 Quote Required
4050-T22117 10 3.33 52 1.4 1565 Quote Required
4050-T22118 15 5.00 66 1.5 2527 Quote Required
4050-T22119 20 6.66 93 2.6 3538 Quote Required
4050-T22120 25 8.33 160 2.5 4665 Quote Required
4050-T22121 35 11.66 240 3.7 8828 Quote Required
4050-T22122 50 16.66 410 5.5 15697 Quote Required
4050-T22123 100 33.33 1200 9.0 39396 Quote Required
Pricing Currency: Add To Quote Request   ?  

Stainless Screwjack Actuator.

Stainless Steel Actuator

These Stainless Steel Screwjack Actuators are specifically designed for harsh environments, in standard and special configurations for loads upto 100 tons.

They incorporate all of the same features as a standard machine screw actuator, but can be used in severe environments where other materials are inadequate.

All of the exposed surfaces are made of 316 stainless steel including the lifting screw, housing, shell cap, worm and dust guard.

  • Corrosion resistant.
  • Stainless Steel hardware.
  • Sealed gear cavity to keep contaminants out.
  • Anti-backlash and Metric machine screw actuators are also available.

Stainless Steel Machine Screw Actuator Dimensions

Stainless Jack Dimensions 1
17 - 4 PH Worm Cap.(Tons) 316 SS Worm Capacity (tons) A B C D E+/-.005 F G H J+.000/-.002 K L M N
Sustaining Operating
 2 (1800 series)
2
.67
5.50
4.56
Travel
.50
1.750
1.66
4.25
.50
 .500 3.00
6.00
1.00
2.00
 2 (9000 series)
 2  .67  5.50  4.56  Travel  .50  1.750  1.66  4.25  .50  .500  1.56  3.13  1.93  5.25
 5  5  1.66  7.50  5.88  Travel  .50  2.250  2.38  4.50  .60  .749  2.25  4.50  2.25  6.50
 10  10  3.33  7.75  5.62  Travel +3/8
 .50  2.250  2.88  5.75  .94  1.000  2.88  5.75  2.00  7.00
 15  15  5.00  8.00  6.31  Travel + 9/16
 .63  2.750  2.88  5.75  .94  1.000  3.00  6.00  2.50  7.50
 20  20  6.66  10.25  7.13  Travel + 1/2
 .75  3.250  3.50  5.75  .94  1.000  3.00  6.00  3.00  8.75
 25  25  8.33  11.75  9.75  Travel + 1/4
 1.00  4.000  4.50  8.50  .94  1.375  3.75  7.50  3.75  11.00
 35  35  11.66  12.50  9.56  Travel + 1/4
 1.25  4.000  4.50  10.50  1.31  1.375  3.75  7.50  4.50  12.50
50 (1800 series)
 50  16.66  13.50  11.38  Travel + 5/8
 1.25  4.750  5.63  11.25  1.25  1.500  8.00  16.00  3.00  6.00
 100  100  33.33  24.00  18.50  Travel + 1/2
 1.50  6.000  7.00  14.00  2.94  1.750  10.00  20.00  5.75  16.26
Stainless Jack Dimensions 2
P Q R S T U V W X Y Z a b Keyseat Lifting Screw (dia./Pitch)
3.50 7.00 1.75 3.50 3.50 7.00 1.12 1.702 +.003/-.000 .41 3.00 .41 .75 .5 .125 x .060 x 1.00 LG. 1.00 x .250
2.06 4.13 2.42 6.25 3.50 7.00 1.12 1.702 +.003/-.000 .41 3.00 .41 .88 .38 .125 x .060 x 1.00 LG. 1.00 x .250
3.00 6.00 3.00 8.00 4.50 9.00 1.50 2.188 +.002/-.000 .69 3.00 .69 1.19 .75 .188 x .094 x 1.25 LG. 1.50 x .375
3.75 7.50 2.88 8.75 5.50 11.00 1.80 2.598 +.003/-.000 .81 4.13 .81 1.31 .88 .250 x .125 x 1.50 LG. 2.00 x .500
3.88 7.75 3.38 9.25 5.50 11.00 1.80 2.598 +.003/-.000 .81 4.13 .81 1.38 .88 .250 x .125 x 1.50 LG. 2.25 x .500
4.13 8.25 4.13 11.00 5.50 11.00 1.50 2.598 +.003/-.000 .81 4.13 1.12 1.75 1.13 .250 x .125 x 1.50 LG. 2.50 x .500
5.13 10.25 5.13 13.75 7.00 14.00 2.30 3.750 +.006/-.000 1.06 6.00 1.38 2.13 1.38 .313 x .156 x 2.00 LG. 3.00 x .666
5.13 10.25 6.00 15.50 7.00 14.00 2.10 3.750 +.006/-.000 1.62 7.75 1.62 2.63 1.38 .313 x .156 x 2.00 LG. 3.75 x .666
9.88 19.75 4.88 9.75 11.00 22.00 4.40 5.313 +.003/-.000 1.38 8.75 1.88 3.25 1.88 .375 x .188 x 2.25 LG. 4.50 x .666
12.25 24.50 8.00 20.75 11.50 23.00 3.40 7.500 +.003/-.000 1.88 11.00 1.88 3.50 2.25 .500 x .250 x 3.00 LG. 6.00 x .750
1
Standard Screw End Dimensions For Ssms
Capacity A** B** C D E F** G** H J
2 Ton SMS 5 1/4 1 3/4 3/4 13/32 3/4 6 2 1/2 1 1/8 3/4"-10UNC-2A
5 Ton SMS 7 2 1/2 1 21/32 1 8 2 1/2 1 1/8 1"-8UNC-2A
10 Ton SMS 7 1/2 3 1 1/4 25/32 1 1/4 9 1/4 4 1/4 1 5/8 1 1/2"-6UNC-2A
15 Ton SMS 8 1/2 3 1 1/4 29/32 1 1/2 10 1/4 4 1/4 2 1 3/4"-5UNC-2A
20 Ton SMS 10 3 1/2 1 1/2 1 1/32 1 3/4 12 1/2 5 2 1/4 2"-4 1/2UNC-2A
25 Ton SMS 12 4 1 3/4 1 9/32 2 1/4 14 1/2 5 3/4 3 1/4 2 1/2"4-UNC-2A
35 Ton SMS 13 5 2 1 17/32 2 1/2 15 1/2 7 3 3/4 3 1/4"-4UNC-2A
50 Ton SMS 15 5 1/2 2 1/2 1 21/32 3 1/4 18 8 4 1/4 4"4UNC-2A
100 Ton SMS 24 9 3 2 17/32 4 1/4 25 12 5 1 1/2"-12UNC-2A
Capacity M N** P** R S T U V
2 Ton SMS 1 5 1/4 1 3/4 4 1/4 7/16 4 13/32 3
5 Ton SMS 1 1/2 7 1/2 2 1/2 4 1/2 5/8 4 11/16 3
10 Ton SMS 2 7 3/4 2 3/4 5 3/4 15/16 4 13/16 4 1/8
15 Ton SMS 2 1/4 8 1/2 2 3/4 5 3/4 15/16 4 13/16 4 1/8
20 Ton SMS 2 1/2 10 1/4 3 5 3/4 15/16 4 13/16 4 1/8
25 Ton SMS 3 11 3/4 3 8 1/2 15/16 4 1 1/16 6
35 Ton SMS 3 3/4 12 1/2 4 10 1/2 1 5/16 4 1 5/8 7 3/4
50 Ton SMS 4 1/2 13 1/2 3 1/2 11 1/4 1 1/4 4 1 3/8 8 3/4
100 Ton SMS 6 24 12 14 2 15/16 6 1 7/8 11

Stainless Steel Actuator Performance Specifications

Capacity (tons) - 17-4PH Worm 2 5 10 15 20 25 35 50 100
Capacity (tons) - 316 SS Worm 0.67 1.66 3.33 5.00 6.66 8.33 11.66 16.66 33.33
Lifting Screw Diameter (in) 1
1 1/2
2
2 1/4
2 1/2
3
3 3/4
4 1/2
6
Pitch (in) 0.250
0.375
0.500
0.500
0.500
0.666
0.666
0.666
0.750
Type  ACME ACME
ACME
ACME
ACME
ACME
ACME
Mod.Sq.
Mod.Sq.
Worm Gear Ratios Standard  6:1 6:1
8:1
8:1
8:1
10 2/3:1
10 2/3:1 10 2/3:1  12:1
Optional Number 1 24:1
24:1
24:1
24:1
24:1
32:1
32:1
32:1
36:1
Optional Number 2  12:1 12:1
-
-
-
-
-
-
-
Turns of Worm for 1" Raise Standard  24 16
 16 16
 16 16
 16  16 16
Optional Number 1  96  64 48
48
48
48
48
48
48
Optional Number 2  48 32
-
-
-
-
-
-
-
Worm Torque at No Load (in-lb) Standard 5
10
20
20
30
40
50
100
200
Optional Number 1  5 10
20
20
30
40
50
100
200
Optional Number 2  5 10
-
-
-
-
-
-
-
Maximum Horsepower per Actuator Standard  2 4
5
5
5
8
8
15
25
Optional Number 1  1/2 3/4
1 1/2
1 1/2
1 1/2
2 1/2
2 1/2
6
11
Optional Number 2  3/4 2
-
-
-
-
-
-
-
Worm Torque at Full Load (in-lb) 17-4PH Worm Standard  120 450
750
1430
2050
2700
4000
7500
16000
Optional Number 1  50 185
400
820
1170
1700
2400
4200
8600
Optional Number 2  75 275
-
-
-
-
-
-
-
Worm Torque at Full Load (in-lb) 316SS Worm Standard  43  156  263  490  703 926
1366
2566
5466
Optional Number 1  20 68
147
287
410
593
833
1466
3000
Optional Number 2 28
98
-
-
-
-
-
-
 -
Efficiency Rating (%) Standard  20.4  21.2  25.2  20.3  18.9 17.9
17.0
12.9
12.1
Optional Number 1 11.1
12.1
15.1
11.6
10.8
 9.3 9.3
7.5
7.4
Optional Number 2 15.6 16.8 -
-
-
-
-
-
-
Weight with 6" Raise (lb) 17 35 52 66 93 160 240
410
1200
Weight per Additional 1" Raise (lb) 0.3 0.9 1.4 1.5 2.6 2.5
3.7
5.5
9.0
Key Torque (in-lb) 153
581
1565
2527
3538
4665
8828
15697
39396
Max Worm Speed at Full Load (rpm) Standard 1750 1615
1198
643
449
544
369
368
288
Optional Number 1  1576 694 645
330
231
266
189
258
231
Optional Number 2  1669 1286
-
-
-
-
-
-
-
Max Load at Full Horsepower and 1750 rpm (lb) Standard  1333 3047
4386
3406
2972
4664
4220
5949
8865
Optional Number 1 1156 972
1791
1276
843
1507
1192
2831
4671
Optional Number 2  1258  2339 -
 -  -  -  -  -  -
Descriptive Image Ssms
StainlessSteelMS.pdf

Stainless Steel Machine Screwjack

(approx. 1.6Mb)

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