Industrial Automation Actuators & Motors
Industrial Automation Actuators & Motors Supplier in South Africa
Nkokhi Group supplies and sources industrial automation actuators, electric motors, servo motors, stepper motors, linear actuators, rotary actuators, pneumatic actuators and hydraulic actuators for industrial automation, manufacturing, process control, material handling, water treatment, mining, energy, packaging and engineering applications.
We assist customers in South Africa with sourcing industrial automation motors and actuators, including replacement units, obsolete components, OEM products and alternative-equivalent solutions.
Whether you need an industrial servo motor, electric linear actuator, pneumatic cylinder, rotary actuator, geared motor, stepper motor or hydraulic actuator, Nkokhi Group can assist with identifying and sourcing the correct component based on your machine, application, manufacturer and part number.
Actuators are the physical output devices of an automation system, converting electrical, pneumatic or hydraulic energy into controlled mechanical movement. They can provide linear or rotary motion and are commonly controlled through PLCs, motion controllers, servo drives, VFDs and other automation equipment.
Industrial Automation Actuators & Motors
Modern automated machinery depends on motors and actuators to convert control commands into physical movement.
A typical automation system may include:
PLC → Motion Controller → Servo Drive / VFD → Motor → Gearbox / Transmission → Actuator → Machine Mechanism
Nkokhi Group can assist with sourcing components across this automation chain.
Products We Supply & Source
- Industrial Electric Motors
- AC Motors
- Three-Phase Motors
- Single-Phase Motors
- Servo Motors
- Servo Actuators
- Stepper Motors
- BLDC Motors
- DC Motors
- Geared Motors
- Gearboxes and Geared Actuators
- Electric Linear Actuators
- Linear Servo Actuators
- Ball Screw Actuators
- Belt-Driven Linear Actuators
- Rod-Type Electric Actuators
- Rodless Electric Actuators
- Rotary Electric Actuators
- Pneumatic Cylinders
- Pneumatic Linear Actuators
- Pneumatic Rotary Actuators
- Pneumatic Grippers
- Hydraulic Cylinders
- Hydraulic Actuators
- Hydraulic Rotary Actuators
- Valve Actuators
- Damper Actuators
- Motorised Valve Actuators
- Industrial Gear Motors
- Brake Motors
- Explosion-Proof Motors
- High-Efficiency Motors
- Motor Brakes
- Encoders and Resolvers
- Servo Motor Cables
- Motor Feedback Cables
- Servo Drives
- Variable Frequency Drives
- Motor Starters
- Motor Protection Equipment
Types of Industrial Automation Actuators
Industrial automation actuators are generally divided into electric, pneumatic and hydraulic technologies.
Each technology has different characteristics regarding force, speed, precision, control, maintenance and operating environment.
1. Electric Actuators
Electric actuators use an electric motor and mechanical transmission system to produce controlled linear or rotary movement.
They are commonly used where programmable positioning, repeatability, variable speed and digital control are important.
Common Electric Actuator Types
- Electric linear actuator
- Servo linear actuator
- Ball screw actuator
- Lead screw actuator
- Belt-driven actuator
- Rod actuator
- Rodless actuator
- Electric cylinder
- Rotary actuator
- Electric gripper
- Linear motor actuator
Applications
- Robotics
- CNC machinery
- Packaging machinery
- Automated assembly
- Pick-and-place systems
- Conveyor systems
- Material handling
- Automated valves
- Water treatment
- Process machinery
2. Servo Motors & Servo Actuators
Servo motors are designed for closed-loop motion control using feedback devices such as encoders or resolvers.
A servo system normally consists of:
Servo Controller → Servo Drive → Servo Motor → Encoder Feedback
Servo motors are widely used where accurate positioning, speed control and torque control are required.
Common Servo Motor Models & Series
- SIMOTICS S-1FK2
- SIMOTICS S-1FT2
- SIMOTICS M
- SINAMICS-compatible servo motor systems
Siemens lists the SIMOTICS S-1FK2 and S-1FT2 ranges for precision motion applications, with the S-1FK2 range covering 0.26–7.1 kW and S-1FT2 covering 0.26–15.7 kW in the cited current product range.
Yaskawa
- Sigma-7
- SGM7J
- SGM7G
- SGM7A
- SGM7P
The Yaskawa SGM7J is a Sigma-7 rotary servo motor family covering 50 W to 1.5 kW, with 24-bit encoder feedback and models available with options such as brakes and shaft seals.
Schneider Electric
- Lexium 32
- BSH Servo Motors
- BMH Servo Motors
- Lexium 23 Plus
- Lexium 62
Schneider Electric’s Lexium 32 system includes BMH and BSH servo motor families, with the range covering servo applications from 0.15 to 11 kW.
Mitsubishi Electric
- MELSERVO-J4
- MELSERVO-J5
- HG Series Servo Motors
- HK Series Servo Motors
Omron
- 1S Servo System
- G5 Series Servo Motors
- G-Series Servo Motors
Rockwell Automation / Allen-Bradley
- Kinetix VP
- Kinetix VPL
- Kinetix MPL
- Kinetix MP
- Kinetix TLP
3. Stepper Motors
Stepper motors move through discrete angular steps and are widely used for positioning applications.
Common Stepper Motor Types
- NEMA 17
- NEMA 23
- NEMA 24
- NEMA 34
- NEMA 42
- Hybrid stepper motors
- Closed-loop stepper motors
- Integrated stepper motors
- Stepper linear actuators
Applications
- CNC machines
- 3D printers
- Packaging machinery
- Labelling machines
- Conveyors
- Pick-and-place machines
- Automated feeders
- Instrumentation
- Small positioning systems
4. Pneumatic Actuators
Pneumatic actuators use compressed air to create linear or rotary motion.
They are particularly common in factory automation because they can provide fast repetitive movement and relatively simple mechanical arrangements.
Common Pneumatic Actuators
- Single-acting cylinders
- Double-acting cylinders
- Compact cylinders
- Guided cylinders
- Rodless cylinders
- Rotary actuators
- Pneumatic grippers
- ISO cylinders
- Tie-rod cylinders
- Magnetic cylinders
- Air slides
- Pneumatic clamps
Major Pneumatic Actuator Manufacturers
- Festo
- SMC
- Parker
- Bosch Rexroth
- IMI Norgren
- Aventics
- CKD
- Camozzi
- Metal Work
- Airtac
5. Hydraulic Actuators
Hydraulic actuators use pressurised hydraulic fluid to generate mechanical force and movement.
They are suitable for applications requiring high force and power density.
Hydraulic Actuator Types
- Single-acting hydraulic cylinders
- Double-acting hydraulic cylinders
- Telescopic cylinders
- Tie-rod cylinders
- Welded cylinders
- Hydraulic rotary actuators
- Hydraulic motors
- Servo hydraulic actuators
- Electro-hydraulic actuators
Hydraulic actuator systems can include cylinders for linear movement and hydraulic motors or rotary actuators for rotational movement.
Major Hydraulic Actuator Manufacturers
- Bosch Rexroth
- Parker Hannifin
- Eaton
- Danfoss
- Hydac
- Moog
- Kawasaki
- Bucher Hydraulics
- Sun Hydraulics
- Yuken
Major Industrial Automation Actuator & Motor Manufacturers
Nkokhi Group can assist with sourcing products from many international automation manufacturers.
Siemens
Popular automation and motion-control products include:
- SIMOTICS motors
- SIMOTICS S servo motors
- SINAMICS drives
- Linear motors
- Gear motors
ABB
Common product categories include:
- Industrial motors
- Servo motors
- Synchronous motors
- Induction motors
- Variable-speed drives
- Motion products
Schneider Electric
Popular ranges include:
- Lexium servo systems
- BSH servo motors
- BMH servo motors
- Lexium electric actuators
- Altivar drives
Schneider’s Lexium 32 platform combines servo drives with BMH and BSH motor families for machine motion applications.
Yaskawa
Popular ranges include:
- Sigma-7
- Sigma-5
- SGM7J
- SGM7G
- SGM7A
- SERVOPACK
Mitsubishi Electric
Popular ranges include:
- MELSERVO
- MR-J4
- MR-J5
- HG Servo Motors
- HK Servo Motors
Rockwell Automation / Allen-Bradley
Popular ranges include:
- Kinetix servo motors
- Kinetix drives
- PowerFlex drives
- Integrated motion systems
Omron
Popular ranges include:
- 1S Servo System
- G5 Servo
- G-Series
- Accurax
- NJ/NX motion-control systems
Bosch Rexroth
Products include:
- IndraDrive
- IndraDyn servo motors
- Linear motion systems
- Hydraulic actuators
- Electric actuators
- Servo drives
Festo
Products include:
- Electric actuators
- Pneumatic cylinders
- Servo motors
- Linear motion systems
- Electric cylinders
- Pneumatic rotary actuators
SMC
Products include:
- Electric actuators
- LE Series electric actuators
- Pneumatic cylinders
- Rotary actuators
- Grippers
- Motion-control products
Parker Hannifin
Products include:
- Electric actuators
- Servo motors
- Hydraulic actuators
- Pneumatic actuators
- Linear motion systems
- Motion controllers
The industrial actuator market includes major suppliers such as SMC, Festo, Bosch Rexroth, Parker Hannifin, ABB, Siemens, Rockwell Automation, Yaskawa, Mitsubishi Electric and other specialised motion-control manufacturers.
Popular Industrial Automation Motor Models & Series
Below are examples of commonly encountered industrial automation motor and actuator families.
| Manufacturer | Product / Model Series | Type |
|---|---|---|
| Siemens | SIMOTICS S-1FK2 | Servo Motor |
| Siemens | SIMOTICS S-1FT2 | Servo Motor |
| Yaskawa | SGM7J | Servo Motor |
| Yaskawa | SGM7G | Servo Motor |
| Schneider Electric | BSH | Servo Motor |
| Schneider Electric | BMH | Servo Motor |
| Schneider Electric | Lexium 32 | Servo System |
| Mitsubishi Electric | HG Series | Servo Motor |
| Mitsubishi Electric | HK Series | Servo Motor |
| Omron | G5 | Servo Motor |
| Omron | 1S | Servo System |
| Rockwell Automation | Kinetix VP | Servo Motor |
| Rockwell Automation | Kinetix VPL | Servo Motor |
| ABB | M2BAX | Industrial Motor |
| ABB | M3BP | Industrial Motor |
| Festo | Electric Actuator Series | Electric Actuator |
| SMC | LE Series | Electric Actuator |
| Bosch Rexroth | IndraDyn | Servo Motor |
| Parker | Servo Motor Series | Servo Motor |
| Eaton | Hydraulic Actuators | Hydraulic |
| IMI Norgren | Pneumatic Actuators | Pneumatic |
Important: Exact motor compatibility cannot be determined from the series name alone. The complete model number, voltage, power, encoder, brake, flange, shaft and mounting configuration should be checked before ordering.
Industrial Electric Motors
Nkokhi Group also assists with sourcing industrial electric motors for automation and machinery applications.
Common Motor Types
- Three-phase induction motors
- IE2 motors
- IE3 high-efficiency motors
- IE4 efficiency motors
- Synchronous motors
- Permanent-magnet motors
- Brake motors
- Explosion-proof motors
- Inverter-duty motors
- Geared motors
- High-speed motors
- Low-voltage motors
- Medium-voltage motors
- DC motors
- BLDC motors
Common Industrial Motor Applications
- Pumps
- Fans
- Compressors
- Conveyors
- Crushers
- Mixers
- Blowers
- Hoists
- Machine tools
- Packaging machinery
- Processing equipment
- Water-treatment plants
- Mining equipment
Motor & Actuator Applications
Our industrial automation actuators and motors can be used across multiple industries.
Manufacturing
- Assembly lines
- Automated production lines
- Robotics
- Machine tools
- Presses
- Packaging machinery
Mining
- Conveyors
- Pumps
- Ventilation systems
- Material handling
- Processing plants
- Crushers
- Feeders
Water & Wastewater
- Pump control
- Valve automation
- Dosing systems
- Clarification systems
- Treatment plants
- Automated gates
Food & Beverage
- Packaging
- Filling
- Bottling
- Conveyors
- Processing
- Automated valves
Material Handling
- Conveyors
- Sortation systems
- Lifting equipment
- Palletising
- Automated storage systems
Energy & Utilities
- Pumps
- Fans
- Dampers
- Valve actuation
- Generator systems
- Process control
Industrial Automation Actuator Selection Guide
Selecting the correct actuator requires more than simply matching the physical dimensions.
The following specifications should be considered:
1. Required Force
Determine the force required to move the load.
2. Torque
For rotary applications, determine the required output torque.
3. Speed
Identify the required linear or rotational speed.
4. Stroke
For linear actuators, specify the required travel distance.
5. Position Accuracy
Determine whether the application requires simple end-position control or high-precision closed-loop positioning.
6. Duty Cycle
Determine how frequently the actuator will operate.
7. Motor Power
Check the required motor power in kW or W.
8. Voltage
Confirm:
- 24 VDC
- 48 VDC
- 110 VAC
- 220–240 VAC
- 380–415 VAC
- 400 VAC
- 460–480 VAC
- Other application-specific voltage
9. Feedback
Check whether the system requires:
- Incremental encoder
- Absolute encoder
- Resolver
- Hall sensors
- Linear encoder
- No feedback
10. Environmental Conditions
Check:
- IP rating
- Ambient temperature
- Dust
- Water
- Oil
- Chemicals
- Washdown
- Corrosive environments
- Hazardous areas
Tips When Buying Industrial Automation Actuators & Motors
TIP 1 – Provide the Complete Part Number
The complete manufacturer’s part number is normally the fastest way to identify the correct replacement.
TIP 2 – Send a Photograph
A clear photograph of the motor or actuator nameplate can help identify:
- Manufacturer
- Model
- Serial number
- Voltage
- Current
- Power
- Speed
- Encoder
- Brake
- IP rating
TIP 3 – Confirm the Drive
A servo motor should be matched with a compatible servo drive.
Do not assume that two motors with the same power rating are interchangeable.
TIP 4 – Check Encoder Compatibility
Servo systems may use different encoder technologies and communication protocols.
Confirm encoder type and feedback compatibility before ordering.
TIP 5 – Check Mechanical Dimensions
Confirm:
- Flange size
- Shaft diameter
- Shaft length
- Keyway
- Mounting holes
- Overall length
- Connector position
TIP 6 – Check Brake Requirements
Some vertical-axis applications require a motor holding brake.
TIP 7 – Check the Duty Cycle
A motor that works for intermittent operation may not be suitable for continuous-duty applications.
TIP 8 – Check the Application Before Selecting Technology
Electric, pneumatic and hydraulic actuators have different performance characteristics. The correct choice depends on the required force, speed, precision, environment and control architecture.
TIP 9 – Avoid Ordering From Power Rating Alone
A 2.2 kW servo motor from one manufacturer is not automatically a direct replacement for another manufacturer’s 2.2 kW motor.
TIP 10 – Send the Machine Information
For difficult or obsolete components, provide:
- Machine manufacturer
- Machine model
- Machine serial number
- Motor nameplate
- Existing actuator model
- Servo drive model
- PLC model
- Application
- Photos
- Existing wiring or connector photographs
This allows the correct component or an engineered alternative to be investigated.
Industrial Automation Actuator & Motor Sourcing
Nkokhi Group assists South African customers with sourcing industrial automation components from local and international supply channels.
We can assist with:
Identify → Verify → Source → Quote → Supply
For obsolete, discontinued or difficult-to-find automation components, we can investigate OEM, aftermarket and alternative-equivalent supply options.
Products We Can Help Source
- Servo motors
- Servo actuators
- Electric actuators
- Pneumatic actuators
- Hydraulic actuators
- Stepper motors
- AC motors
- DC motors
- Geared motors
- Industrial motors
- Linear actuators
- Rotary actuators
- Encoders
- Servo drives
- VFDs
- Motor controllers
- Replacement automation components
Why Choose Nkokhi Group?
Nkokhi Group provides sourcing support for industrial automation, electrical, electronic and mechanical components.
Our Service Includes
- Product identification
- Part-number verification
- OEM sourcing
- Aftermarket sourcing
- Replacement-part sourcing
- Obsolete-part investigation
- International sourcing
- Technical specification review
- Supplier comparison
- Quotation support
- South African supply
For specialised automation components, customers should provide the exact part number and application information wherever possible.
Frequently Asked Questions
What are industrial automation actuators?
Industrial automation actuators are devices that convert electrical, pneumatic or hydraulic energy into controlled mechanical movement. They can produce linear or rotary motion and are used to move machine components, valves, mechanisms and robotic systems.
What is the difference between a motor and an actuator?
A motor primarily converts energy into rotary mechanical motion. An actuator is a broader term for a device that creates controlled movement or force and may incorporate a motor, gearbox, screw, belt, cylinder or other mechanism.
What are the main types of industrial actuators?
The main categories are:
- Electric actuators
- Pneumatic actuators
- Hydraulic actuators
Electric systems are commonly selected for precise programmable motion, pneumatic systems for fast repetitive movement and hydraulic systems for high-force applications.
What is a servo motor?
A servo motor is a motor used within a closed-loop motion-control system, normally with encoder or resolver feedback. Servo systems are commonly used for accurate position, speed and torque control.
What is an electric linear actuator?
An electric linear actuator converts rotary motor movement into linear movement, commonly through a ball screw, lead screw or belt mechanism.
What is a pneumatic actuator?
A pneumatic actuator uses compressed air to produce mechanical movement. Pneumatic cylinders and rotary actuators are widely used in factory automation.
What is a hydraulic actuator?
A hydraulic actuator uses pressurised hydraulic fluid to generate force or rotary movement. Hydraulic cylinders are commonly used where high force is required.
Can Nkokhi Group source obsolete actuators and motors?
Yes. Nkokhi Group can investigate obsolete, discontinued and hard-to-find automation motors and actuators using the available manufacturer part number, machine information and photographs.
Can you supply replacement servo motors?
We can assist with sourcing replacement servo motors, subject to compatibility with the existing servo drive, encoder system, mechanical mounting and application.
What information should I provide when requesting a motor quotation?
Ideally provide:
- Manufacturer
- Complete part number
- Motor model
- Voltage
- Power
- RPM
- Frame/flange size
- Encoder type
- Brake requirement
- Shaft dimensions
- Quantity
- Application
- Photograph of nameplate
Can you source motors from international suppliers?
Nkokhi Group can assist with international sourcing for specialised and hard-to-find industrial automation components, subject to product availability, supplier verification, shipping and applicable import requirements.
Do you supply only motors?
No. Nkokhi Group can assist with a broader range of industrial automation components including actuators, servo motors, stepper motors, electric motors, pneumatic and hydraulic actuators, drives, encoders and related automation equipment.
Request a Quote
Looking for an industrial automation actuator, servo motor, electric motor, pneumatic actuator or hydraulic actuator in South Africa?
Send Nkokhi Group:
📸 Product photograph
🔢 Complete part number
🏭 Manufacturer
⚙️ Machine model
📋 Required quantity
📍 Delivery location
Our team can assist with identification and sourcing.
Nkokhi Group – Industrial Automation Actuators & Motors
Industrial Automation | Motors | Actuators | Servo Systems | Electrical & Electronic Components
Contact Nkokhi Group for assistance sourcing industrial automation actuators and motors in South Africa.