North America - EN
VOLTAGE: 115V, 1P, 50-60 Hz
STANDARD STROKES: 6 to 24 inches
SPEED: 0.83 in/s Full Load, 1.52 in/sec Half Load
TEMPERATURE RANGE: 25°F–104°F (-4°C–40°C)
ENVIRONMENTAL RATING: IP54 protection
CAPACITY: 1500 lbs
SOFTWARE DOWNLOAD: Visit download page
Electronic programmable limit switches (EPLS) provide greater precision and accuracy and increased ability to repeat motions compared to other actuators using mechanical limit switches. An EPLS can be set with either a pushbutton on the actuator or the easy-to-use digital configuration software. Simply connect the actuator to your PC to troubleshoot and adjust parameters.
Onboard analog and digital I/O provide enhanced control and position feedback capabilities. An analog input enables position control from an external 0-10 VDC or 4-20 mA source. A selectable 0-10 VDC or 4-20 mA analog output provides feedback on the actuator’s position. Digital inputs provide a means of extending or retracting the actuator, while digital outputs provide indications when limits are reached.
Optional integrated analog and digital I/O provide positioning feedback and enable precise position control via a programmable logic controller (PLC). Optional Ethernet/IP connectivity enables direct connection to a PLC, providing an infinite number of control options and configurations to choose from when programming complex patterns and motion sequences. Variable frequency drive (VFD) technology, combined with an absolute position encoder, results in precise motor movements that ensure products are moved safely and efficiently.
The Intelli-Motion™ platform enables the actuator to connect with a PLC without any intermediary components. Other actuator configurations require a separate VFD or contactor control system housed in an external control panel. Intelli-Motion™ technology features an integrated VFD and onboard I/O, reducing installation costs and product footprint and simplifying the component purchasing process.
The SPA with Intelli-Motion™ provides a full load duty cycle of 30%, an increase of 75% as compared to similar ACME screw actuators. This extends the length of time the actuator can operate, increasing production rates and reducing the need for wait times or external forced cooling devices. At decreased loads, the actuator can achieve a duty cycle of 50%.
The integrated VFD and onboard control system enable operators to program specific motion patterns and adjust the actuator speed to the optimal rate to match applications. The EPLSs define specific stopping points, and the integrated VFD provides options for variable operating speeds and increased duty cycles. In addition, adjustable clevis end connections can be configured for an ideal installation orientation to fit your application. Plus, the SPA with Intelli-Motion™ is available as a standalone product or can be used as part of a complete automated system.
Typical actuators apply 100% power to the motor at startup, resulting in up to six times the normal running current at startup. This places stress and strain on the motor and mechanical components, ultimately reducing the actuator’s life. The SPA with Intelli-Motion™ soft starts the motor automatically by limiting startup current and gradually ramping up the acceleration until full speed is reached. Automatic soft starting and smooth ramp-up acceleration prolong the motor’s life and reduce the stress placed on mechanical components during startup.
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Check out this webinar on Duff-Norton’s most advanced linear actuator, the SPA with Intelli-Motion™ technology, which is designed to provide reliable operation and simplify applications, especially those that can benefit from automation technology.
The webinar explores features and benefits, reviewing available product packages, and answering questions on specific application needs.
Dynamic Rated Load |
1,500 lbs. (6.7 kN) |
Minimum Stroke Length* |
6 in. (152 mm) |
Maximum Stroke Length* |
24 in. (610 mm) |
Stroke Length Increments* |
6 in. (152 mm) |
Speed Range at Dynamic Rated Load |
0.42 in/sec (11 mm/sec)–0.83 in/sec (21 mm/sec) |
Maximum Duty Cycle at Reduced Load |
30% |
Operating Temperature Range |
50% |
Ingress Protection Rating (Static and Dynamic) |
25–104°F (-4–0°C) |
Anti-Rotation Feature |
IP54 |
Anti-Rotation Feature |
Yes |
Restraining Torque |
215 in-lbs. (24.2 Nm) |
Screw Type |
ACME |
Minimum Weight (6 in. Stroke Unit) |
35 lbs. (16 kg) |
Maximum Weight (24 in. Stroke Unit) |
41 lbs. (19 kg) |
| *Custom stroke lengths are available. Consult the factory or a sales representative. | |
MODELS |
Extend and Retract Inputs |
Electronic Programmable Limit Switches |
Adjustable Speed and Duty Cycle |
Analog Position Input (Selectable 0-10 VDC or 4-20 mA) |
Analog Position Output (Selectable 0-10 VDC or 4-20 mA) |
Digital Position Output |
Ethernet/IP Connectivity |
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| Base Model |
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| Base Model + Analog and Digital I/O |
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| Base Model + Ethernet/IP Communication* |
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*Ethernet/IP units contain full functionality but do not contain individual inputs and outputs. All control and feedback is delivered over the network. |
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