Argentina
Austria
Bolivia
Brazil
Canada
Chile
China
Columbia
Costa Rica
Ecuador
El Salvador
France
Germany
Guatemala
Hungary
Italy
Mexico
Paraguay
Peru
Poland
Portugal
Russia
South Africa
Spain
Switzerland
Uruguay
Argentina
Austria
Bolivia
Brazil
Canada
Chile
China
Columbia
Costa Rica
Ecuador
El Salvador
France
Germany
Guatemala
Hungary
Italy
Mexico
Paraguay
Peru
Poland
Portugal
Russia
South Africa
Spain
Switzerland
Uruguay
Argentina
Austria
Bolivia
Brazil
Canada
Chile
China
Columbia
Costa Rica
Ecuador
El Salvador
France
Germany
Guatemala
Hungary
Italy
Mexico
Paraguay
Peru
Poland
Portugal
Russia
South Africa
Spain
Switzerland
Uruguay
Argentina
Austria
Bolivia
Brazil
Canada
Chile
China
Columbia
Costa Rica
Ecuador
El Salvador
France
Germany
Guatemala
Hungary
Italy
Mexico
Paraguay
Peru
Poland
Portugal
Russia
South Africa
Spain
Switzerland
Uruguay
Argentina
Austria
Bolivia
Brazil
Canada
Chile
China
Columbia
Costa Rica
Ecuador
El Salvador
France
Germany
Guatemala
Hungary
Italy
Mexico
Paraguay
Peru
Poland
Portugal
Russia
South Africa
Spain
Switzerland
Uruguay
Argentina
Austria
Bolivia
Brazil
Canada
Chile
China
Columbia
Costa Rica
Ecuador
El Salvador
France
Germany
Guatemala
Hungary
Italy
Mexico
Paraguay
Peru
Poland
Portugal
Russia
South Africa
Spain
Switzerland
Uruguay
Machine Screw Actuators can be controlled accurately for positioning within thousandths of one inch.
Models featuring higher gear ratios are inherently load holding as long as the actuator is not subject to vibration
Since many actuators feature the same gear ratios different capacities can be used in the same application to lift unevenly distributed loads with uniform speeds.
All actuators are designed and built to be positive acting, for accurate response to motive power.
Performance Table Instructions When reviewing and Duff-Norton Actuator Performance Specification Table, as part of the process of selecting the best-suited actuator for your application, there are several important worm-gear ratios to consider. Standard Ratio - is frequently chosen when higher speeds and efficiency ratings are desired. Optional Ratio - is frequently chosen when the application requires higher lifting capacities, lower speeds, or to ease the use of a handwheel. Numeric Ratio - is frequently chosen for applications requiring fine adjustments, higher lifting capacities, lower speeds, the easy use of a handwheel, self locking applications, and also offers the benefit of an even number of worm input turns per inch of stroke. |
Specifications - Standard, Optional, and Numeric Ratios - Capacities 25 to 250 Tons | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Capacity (Tons) | 25 | 30 | 35 | 50 | 75 | 100 | 150 | 250* | — | ||
Max. Speed C-face Driven (in/min) | 107.0 | 107.5 | 107.0 | — | — | — | — | — | |||
Max. Speed Reducer Driven (in/min) | 22.2 | 22.2 | 22.4 | 12.2 | — | — | — | — | |||
Dimensional Information | 29 | 29 | 30 | 31-32 | 33 | 34 | 35 | 36 | |||
|
Diameter (in) | 3 | 3 | 3-3/4 | 4-1/2 | 5 | 6 | 7 | 9 | ||
Pitch (Std. & Opt.) | 0.666 | 0.666 | 0.666 | 0.666 | 0.666 | 0.750 | 1.000 | 1.000 | |||
Pitch (Numerical) | 0.320 | 0.320 | 0.320 | 0.320 | — | — | — | — | |||
Type | ACME | ACME | ACME | Mod. Sq. |
Mod. Sq. |
Mod. Sq. |
Mod. Sq. |
Mod. Sq. |
|||
|
Standard | 10- 2/3:1 |
10- 2/3:1 |
10- 2/3:1 |
10- 2/3:1 |
10- 2/3:1 |
12:1 | 12:1 | 12:1 | ||
Optional No. 1 | 32:1 | 32:1 | 32:1 | 32:1 | 32:1 | 36:1 | 36:1 | — | |||
Optional No. 2 | — | — | — | — | — | — | — | — | |||
Numeric Ratio | 32:1 | 32:1 | 32:1 | 32:1 | — | — | — | — | |||
|
Standard | 16 | 16 | 16 | 16 | 16 | 16 | 12 | 50 | ||
Optional No. 1 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 36 | |||
Optional No. 2 | — | — | — | — | — | — | — | — | |||
Numeric Ratio | 100 | 100 | 100 | 100 | — | — | — | — | |||
|
Standard | 40 | 40 | 50 | 100 | 150 | 200 | 250 | 200 | ||
Optional No. 1 | 40 | 40 | 50 | 100 | 150 | 200 | 250 | — | |||
Optional No. 2 | — | — | — | — | — | — | — | — | |||
Numeric Ratio | 40 | 40 | 50 | 100 | — | — | — | — | |||
|
Standard | 8 | 8 | 8 | 15 | 15 | 25 | 25 | 35 | ||
Optional No. 1 | 2-1/2 | 2-1/2 | 2-1/2 | 6 | 6 | 11 | 11 | — | |||
Optional No. 2 | — | — | — | — | — | — | — | — | |||
Numeric Ratio | 2-1/2 | 2-1/2 | 2-1/2 | 6 | — | — | — | — | |||
|
Standard | 2220 | 2640 | 4000 | 7500 | 12000 | 16000 | 28110 | 20000 | ||
Optional No. 1 | 1401 | 1685 | 2400 | 4200 | 6601 | 8600 | 15500 | — | |||
Optional No. 2 | — | — | — | — | — | — | — | — | |||
Numeric Ratio | 1500 | 1800 | 2411 | 4040 | — | — | — | — | |||
|
Standard | 22.4 | 22.4 | 17.4 | 13.3 | 12.4 | 12.4 | 14.2 | 8.0 | ||
Optional No. 1 | 11.8 | 11.8 | 9.7 | 7.9 | 7.5 | 7.7 | 8.6 | — | |||
Optional No. 2 | — | — | — | — | — | — | — | — | |||
Numeric Ratio | 5.3 | 5.3 | 4.6 | 3.9 | — | — | — | — | |||
|
Std. & Opt. 1 & 2 | 14000 | 16800 | 26500 | 47110 | 73000 | 118200 | 216000 | 423300 | ||
Numeric Ratio | 11474 | 13770 | 18561 | 30970 | — | — | — | — | |||
|
Standard | 227 | 190 | 126 | 126 | 79 | 98 | 56 | 110 | ||
Optional No. 1 | 112 | 94 | 66 | 90 | 57 | 81 | 45 | — | |||
Optional No. 2 | — | — | — | — | — | — | — | — | |||
Numeric Ratio | 105 | 87 | 65 | 94 | — | — | — | — | |||
|
Standard | 5691 | 5691 | 4220 | 5949 | 4939 | 8865 | 7003 | 26780 | ||
Optional No. 1 | 1839 | 1839 | 1193 | 2831 | 1537 | 4670 | 2875 | — | |||
Optional No. 2 | — | — | — | — | — | — | — | — | |||
Numeric Ratio | 1714 | 1714 | 1187 | 2946 | — | — | — | — | |||
|
160 | 160 | 240 | 410 | 650 | 1200 | 1350 | 2700 | |||
|
2.5 | 2.5 | 3.7 | 5.5 | 6.5 | 9.0 | 12.6 | 23.0 | |||
*Duff Norton has provided special actuators rated at 300 tons and 350 tons for certain applications. Actuators at these capacities are provided under specific Duff Norton / customer agreement as to the actuator’s performance parameters. Please contact our Application Engineering group for more information. Note: All actuator units can be supplied with standard raises up to 24 inches. Special raises up to 20 feet are available upon request. Closed height dimensions may increase for actuators supplied with bellows boots. |
Performance Table Instructions When reviewing and Duff-Norton Actuator Performance Specification Table, as part of the process of selecting the best-suited actuator for your application, there are several important worm-gear ratios to consider. Standard Ratio - is frequently chosen when higher speeds and efficiency ratings are desired. Optional Ratio - is frequently chosen when the application requires higher lifting capacities, lower speeds, or to ease the use of a handwheel. Numeric Ratio - is frequently chosen for applications requiring fine adjustments, higher lifting capacities, lower speeds, the easy use of a handwheel, self locking applications, and also offers the benefit of an even number of worm input turns per inch of stroke. |
Specifications - Standard, Optional, and Numeric Ratios - Capacities 25 to 250 Tons | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Capacity (Tons) | 25 | 30 | 35 | 50 | 75 | 100 | 150 | 250* | ||
Max. Speed C-face Driven (in/min) | 107.0 | 107.5 | 107.0 | — | — | — | — | — | ||
Max. Speed Reducer Driven (in/min) | 22.2 | 22.2 | 22.4 | 12.2 | — | — | — | — | ||
Dimensional Information | 29 | 29 | 30 | 31-32 | 33 | 34 | 35 | 36 | ||
|
Diameter (in) | 3 | 3 | 3-3/4 | 4-1/2 | 5 | 6 | 7 | 9 | |
Pitch (Std. & Opt.) | 0.666 | 0.666 | 0.666 | 0.666 | 0.666 | 0.750 | 1.000 | 1.000 | ||
Pitch (Numerical) | 0.320 | 0.320 | 0.320 | 0.320 | — | — | — | — | ||
Type | ACME | ACME | ACME | Mod. Sq. | Mod. Sq. | Mod. Sq. | Mod. Sq. | Mod. Sq. | ||
|
Standard | 10- 2/3:1 |
10- 2/3:1 |
10- 2/3:1 |
10- 2/3:1 |
10- 2/3:1 |
12:1 | 12:1 | 12:1 | |
Optional No. 1 | 32:1 | 32:1 | 32:1 | 32:1 | 32:1 | 36:1 | 36:1 | — | ||
Optional No. 2 | — | — | — | — | — | — | — | — | ||
Numeric Ratio | 32:1 | 32:1 | 32:1 | 32:1 | — | — | — | — | ||
|
Standard | 16 | 16 | 16 | 16 | 16 | 16 | 12 | 50 | |
Optional No. 1 | 48 | 48 | 48 | 48 | 48 | 48 | 48 | 36 | ||
Optional No. 2 | — | — | — | — | — | — | — | — | ||
Numeric Ratio | 100 | 100 | 100 | 100 | — | — | — | — | ||
|
Standard | 40 | 40 | 50 | 100 | 150 | 200 | 250 | 200 | |
Optional No. 1 | 40 | 40 | 50 | 100 | 150 | 200 | 250 | — | ||
Optional No. 2 | — | — | — | — | — | — | — | — | ||
Numeric Ratio | 40 | 40 | 50 | 100 | — | — | — | — | ||
|
Standard | 8 | 8 | 8 | 15 | 15 | 25 | 25 | 35 | |
Optional No. 1 | 2-1/2 | 2-1/2 | 2-1/2 | 6 | 6 | 11 | 11 | — | ||
Optional No. 2 | — | — | — | — | — | — | — | — | ||
Numeric Ratio | 2-1/2 | 2-1/2 | 2-1/2 | 6 | — | — | — | — | ||
|
Standard | 2220 | 2640 | 4000 | 7500 | 12000 | 16000 | 28110 | 20000 | |
Optional No. 1 | 1401 | 1685 | 2400 | 4200 | 6601 | 8600 | 15500 | — | ||
Optional No. 2 | — | — | — | — | — | — | — | — | ||
Numeric Ratio | 1500 | 1800 | 2411 | 4040 | — | — | — | — | ||
|
Standard | 22.4 | 22.4 | 17.4 | 13.3 | 12.4 | 12.4 | 14.2 | 8.0 | |
Optional No. 1 | 11.8 | 11.8 | 9.7 | 7.9 | 7.5 | 7.7 | 8.6 | — | ||
Optional No. 2 | — | — | — | — | — | — | — | — | ||
Numeric Ratio | 5.3 | 5.3 | 4.6 | 3.9 | — | — | — | — | ||
|
Std. & Opt. 1 & 2 | 14000 | 16800 | 26500 | 47110 | 73000 | 118200 | 216000 | 423300 | |
Numeric Ratio | 11474 | 13770 | 18561 | 30970 | — | — | — | — | ||
|
Standard | 227 | 190 | 126 | 126 | 79 | 98 | 56 | 110 | |
Optional No. 1 | 112 | 94 | 66 | 90 | 57 | 81 | 45 | — | ||
Optional No. 2 | — | — | — | — | — | — | — | — | ||
Numeric Ratio | 105 | 87 | 65 | 94 | — | — | — | — | ||
|
Standard | 5691 | 5691 | 4220 | 5949 | 4939 | 8865 | 7003 | 26780 | |
Optional No. 1 | 1839 | 1839 | 1193 | 2831 | 1537 | 4670 | 2875 | — | ||
Optional No. 2 | — | — | — | — | — | — | — | — | ||
Numeric Ratio | 1714 | 1714 | 1187 | 2946 | — | — | — | — | ||
|
160 | 160 | 240 | 410 | 650 | 1200 | 1350 | 2700 | ||
|
2.5 | 2.5 | 3.7 | 5.5 | 6.5 | 9.0 | 12.6 | 23.0 | ||
*Duff Norton has provided special actuators rated at 300 tons and 350 tons for certain applications. Actuators at these capacities are provided under specific Duff Norton / customer agreement as to the actuator’s performance parameters. Please contact our Application Engineering group for more information. Note: All actuator units can be supplied with standard raises up to 24 inches. Special raises up to 20 feet are available upon request. Closed height dimensions may increase for actuators supplied with bellows boots. |
Machine Screw Actuator Cut-Away Diagram |
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