SPB Series Linear Actuators
Reliable AC Linear Actuators for Lifting and Motion Control
CH Bull offers Duff Norton SPB Series linear actuators for lifting, lowering and motion control applications requiring up to 500 lbs. of capacity. Available with speeds up to 1.3 in/sec, multiple stroke lengths and 115 VAC or 220 VAC power, SPB Series actuators feature load-limiting friction disc clutches for dependable performance.
SPB Series Linear Actuator Details
Duff Norton SPB Series linear actuators combine heavy-duty construction with an acme screw design, spring-type brake and load-limiting clutch for reliable motion control.
Performance & Capacity
- 500 lb. lifting/lowering capacity
- 750 lb. static load capacity
- Speeds from 0.58 to 1.3 in/sec (15 to 33 mm/sec)
- Stroke options of 3, 6, 12 or 18 inches
- 115 VAC or 220 VAC power, depending on model
- Operating range: -20°F to 120°F (-29°C to 50°C)
- Tube restraining torque of 60 in-lbf
- Standard IP50 protection; optional IP52 protection
Construction & Configuration
- Acme screw design
- Patented spring-type brake
- Load-limiting friction disc clutch
- Aluminum housing and outer tube
- Zinc-chromate-plated steel translating tube
- Double clevis mounting
- Automatic reset for thermal overload motor protection
Features & Options
- Heavy-duty design for long life in challenging applications
- Optional capacitor; standard on 220 VAC models
- Optional IP52 weather-resistant sealant
- Optional bellows boot
- Optional threaded ends
How to Select the Right Linear Actuator
Choosing the right AC-powered linear actuator depends on the requirements of your application. Consider the following factors when evaluating your options.
Capacity & Travel
Determine how much force and movement your application requires.
- Capacity: force required to move and hold the load
- Travel: required distance or range of motion
Voltage & Speed
Match the actuator to your power supply and required operating speed.
- Voltage
- Required movement speed
Duty Cycle & Orientation
Consider how the actuator will operate within your system.
- Duty cycle: percentage of time the actuator is in motion
- Orientation: direction in which the actuator’s force is applied
Operating Environment
- Operating conditions
- Outdoor-use requirements
- Food-grade material requirements
Need help selecting the right model? CH Bull can help evaluate your application and recommend the appropriate linear actuator.
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Get the Right Linear Actuator for Your Application
CH Bull can help you select and configure the right Duff Norton SPB Series linear actuator for your lifting, lowering and motion control needs.