SLA38M Linear Actuator

Minimum installation length by option

Force ≤800 N

• Standard (built-in limit switch): 200 mm + stroke (A = 128.5 mm)
• Low-noise motor: 210 mm + stroke (A = 138.5 mm)
• IP67M / IP69K sealing: 220 mm + stroke (A = 128.5 mm)
• Hall sensor: 220 mm + stroke (A = 148.5 mm)
• Over-current protection: 220 mm + stroke (A = 148.5 mm)
• Limit switch signal output: 210 mm + stroke (A = 138.5 mm)
• Potentiometer: 220 mm + stroke (A = 148.5 mm)

Force >800 N

• Standard (built-in limit switch): 210 mm + stroke (A = 138.5 mm)
• Low-noise motor: 220 mm + stroke (A = 148.5 mm)
• IP67M / IP69K sealing: 230 mm + stroke (A = 138.5 mm)
• Hall sensor: 230 mm + stroke (A = 158.5 mm)
• Over-current protection: 230 mm + stroke (A = 158.5 mm)
• Limit switch signal output: 220 mm + stroke (A = 148.5 mm)
• Potentiometer: 230 mm + stroke (A = 158.5 mm)

For a special installation length, send your required retracted and extended hole-to-hole dimensions.

Stroke and weight

• Stroke: up to 400 mm (other strokes on request)
• Aluminium tube: 0.85 kg at 50 mm stroke to 1.65 kg at 400 mm stroke
• Stainless steel tube: 1.2 kg at 50 mm stroke to 2.25 kg at 400 mm stroke

SLA38M Wiring, Hall Sensor & Limit Switch Options

Built-in limit switches stop the actuator at both ends of the stroke. Reverse the DC polarity on the two motor wires to change direction.

Hall sensor (optional): two-channel (A/B) pulse output for speed, position and multi-actuator synchronization. Hall resolution = lead screw pitch ÷ gear ratio ÷ pulses per revolution.

• White: Hall sensor B Vout
• Green: Hall sensor A Vout
• Red: Hall sensor VCC+
• Black: Hall sensor GND−
• Blue: Motor−
• Brown: Motor+

Over-current protection (optional): cuts motor current when the actuator reaches the end of stroke or is overloaded. Circuit breaking current 4.5 A at 12V DC / 2.5 A at 24V DC; response time 0.1–0.5 s. Input polarity is interchangeable.

Limit switch signal output (optional): optocoupler outputs that switch when the corresponding end-of-stroke limit switch is triggered, so a controller can confirm the fully extended or retracted position.

Potentiometer (optional): real-time analog stroke position feedback. Wiring: V+ (5V), signal (collector) and V− (GND).

Selection Guide: SLA38M Speed, Load & Current Curves

Force vs current curves at 12V and 24V DC, and speed vs force curves for each gear option. Use them to size the power supply and check the speed at your working load.

Low-noise motor option (speed with load / no load):

• 100 N: 19 mm/s with load, 25 mm/s no load
• 300 N: 17 mm/s with load, 25 mm/s no load
• 400 N: 11.5 mm/s with load, 16.5 mm/s no load
• 600 N: 8.5 mm/s with load, 13 mm/s no load
• 800 N: 5.5 mm/s with load, 8.5 mm/s no load
• 1200 N: 3.5 mm/s with load, 5 mm/s no load
• 1800 N: 2.5 mm/s with load, 3.3 mm/s no load
• 2300 N: 2 mm/s with load, 3.3 mm/s no load

Duty Cycle & Service Life

Duty cycle 10% (S2): run up to 2 minutes continuously, then rest 18 minutes. Rated service life ≥10,000 cycles. Operating temperature −20 °C to +60 °C; storage temperature −40 °C to +70 °C.