Actuator (Motor/Cylinder)

Product Specifications

Technical details and manufacturing context for Actuator (Motor/Cylinder)

Definition

An actuator is a core component within transfer mechanisms like robotic arms or walking beams, responsible for generating precise linear or rotary motion to position, lift, push, or manipulate objects along a defined path. It serves as the primary motion source, translating control signals into physical movement. Actuators are available in electric, pneumatic, and hydraulic types, each suited to different applications based on required force, speed, and precision. Electric actuators use motors to drive screws or gears, offering high positioning accuracy and programmability. Pneumatic and hydraulic actuators use fluid pressure to move pistons within cylinders, providing high force output and robustness in harsh environments. The selection of an actuator depends on several parameters, including rated torque, operating pressure, stroke length, piston diameter, response time, positioning accuracy, supply voltage, power consumption, operating temperature, ingress protection, body material, and weight. These parameters are specified in accordance with relevant standards such as ISO 5211, ISO 6432, IEC 60034, IEC 60534-4, IEC 60038, IEC 60529, and ASTM A351. For example, rated torque ranges from 10 to 1000 N·m, operating pressure from 0.4 to 0.8 MPa, stroke length from 25 to 300 mm, and piston diameter from 32 to 200 mm. Response time for motor actuators is 0.5 to 2.0 seconds, positioning accuracy is ±0.5%, supply voltage is 24 V DC ±10%, power consumption is 10 to 50 W, operating temperature is -20 to 70 °C, ingress protection is IP54 to IP65, body material is CF8M stainless steel, and weight ranges from 5 to 50 kg. These values are reference ranges and must be verified for the specific model and application. Always consult the manufacturer or supplier to confirm that the actuator meets your requirements and complies with applicable standards.

Working Principle

Actuators operate by converting input energy (typically electrical, pneumatic, or hydraulic) into mechanical motion. Electric actuators use motors to drive screws or gears; pneumatic/hydraulic actuators use fluid pressure to move pistons within cylinders, producing linear or rotary output. The control signal triggers the energy conversion, and the actuator's internal mechanism translates it into precise movement. The output motion can be linear (e.g., extending a piston rod) or rotary (e.g., rotating a valve stem). The performance is characterized by parameters such as torque, speed, and accuracy, which are influenced by the design and operating conditions.

Common Materials

Aluminum alloy, Stainless steel, Engineering plastics

Technical Parameters

Parameter	Typical range	Notes & selection driver
Rated Torque	10–1000 N·m	Select based on valve breakaway torqueISO 5211
Operating Pressure	0.4–0.8 MPa	Below 0.4 MPa output torque drops
Stroke Length	25–300 mm	For cylinder actuatorsISO 6432
Piston Diameter	32–200 mm	Determines force outputISO 6432
Response Time	0.5–2.0 s	For motor actuatorsIEC 60034
Positioning Accuracy	±0.5 %	For electric actuatorsIEC 60534-4
Supply Voltage	24 ±10% V DC	Other voltages availableIEC 60038
Power Consumption	10–50 W	For electric actuatorsIEC 60034
Operating Temperature	-20–70 °C	Outside range performance degradesIEC 60529
Ingress Protection	IP54–IP65	IP65 for outdoor useIEC 60529
Body Material	CF8M	Stainless steel for corrosion resistanceASTM A351
Weight	5–50 kg	Varies with size and type

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Motor/cylinder body
Houses the driving mechanism and provides structural support

Material: Aluminum alloy or steel
Piston/rod Part
Transmits motion from the driving element to the load

Material: Stainless steel
Seals/bearings Part
Prevent leakage and reduce friction in moving parts

Material: Rubber, PTFE, or ceramic
Electric Motor Optional
The rotating element itself on electric builds; the body row is only its shell.
Drive Screw / Gears Optional
Turns motor rotation into the stroke on electric builds.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Transfer Mechanism (e.g., Robotic Arm, Walking Beam)

View system integration details

Manufacturers of Actuator (Motor/Cylinder)

Manufacturer profiles associated with Actuator (Motor/Cylinder).

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Frequently Asked Questions

What is the difference between electric and pneumatic actuators?

Electric actuators use an electric motor to drive a screw or gear mechanism, offering high positioning accuracy and programmability. Pneumatic actuators use compressed air to move a piston, providing high speed and force but with less precise control. The choice depends on the application's requirements for force, speed, accuracy, and environmental conditions.

How do I select the correct actuator for my application?

Selection involves determining the required torque or force, stroke length, speed, and accuracy. Consider the operating pressure for pneumatic/hydraulic types, supply voltage for electric types, and environmental factors like temperature and ingress protection. Always verify the actuator's specifications against your system's requirements and consult the manufacturer for confirmation.

What standards apply to actuators?

Common standards include ISO 5211 for mounting dimensions and torque, testing, ISO 6432 for cylinder dimensions, IEC 60034 for electric motors, IEC 60534-4 for valve positioners, IEC 60038 for voltage, IEC 60529 for ingress protection, and ASTM A351 for body material. These standards serve as references for procurement and verification.

What maintenance is required for actuators?

Maintenance depends on the type. Electric actuators may require periodic inspection of motor brushes and lubrication of gears. Pneumatic/hydraulic actuators need checks for air or fluid leaks, seal condition, and proper pressure. Always follow the manufacturer's maintenance schedule and monitor for signs of wear, such as reduced performance or unusual noise.

Data Basis

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Preliminary Technical Classification

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pressure:	Up to 300 bar for hydraulic, 10 bar for pneumatic
other spec:	Flow rate: 5-100 L/min (hydraulic), 500-5000 NL/min (pneumatic); Slurry concentration: Not recommended for >5% solids without special seals
temperature:	-20°C to +80°C (standard), -40°C to +120°C (extended range available)

Product Specifications

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards