Operating since 2007, Rotatech was founded on practical engineering expertise to solve demanding flow control and automation challenges across Southern Africa. Initially establishing its reputation through durable quarter-turn pneumatic actuators and a global partnership with Kinetrol, the company has expanded into electric actuation through European manufacturer ARIS Stellantriebe.
- 90º Rotary Pneumatic Actuators
- 180º Gearboxes
- Spring Packs
- Limit Switch Boxes
- Positioners
- Dashpot
- Valves
- Gearbox and Damper Drives
- Engineered solutions
- Single Moving Part
- Direct Mounting control modules
- No cranks for gearing
- Durable corrosion resistant finish
- Long maintenance free life
- Modular – space saving – efficient
- Economic Air Consumption
- Choice of male or female output drive square easy to interface to applications
Pneumatic Actuators
- Double-Acting Pneumatic Actuators
Specialised Actuator Configurations
- 180° / 120° Actuators
- Electrohydraulic Actuators
- Steadyline Damped Actuator Control
Actuator Materials & Product Ranges
- Stainless Steel Actuators
- Blueline
Accessories & Mounting Adaptations Available
- Standalone Spring Packs
- Modular Spring Units for Non-Kinetrol Applications
- Modular Spring Units with Pilot Hole
- Single-Acting Spring Return Pneumatic Actuators
- Spring-to-Centre Actuators
Available Configurations
- Standard Limit Switchbox
- Explosion-Proof Limit Switchbox
- Stainless Steel Limit Switchbox
A variety of switches are available for all configurations.
Available Operating Options
- Pneumatic (I/P Available)
- Electropneumatic
Optional feedback available.
- 4 to 20 mA and/or switches
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We supply genuine Kinetrol spare parts to support the ongoing operation, maintenance and servicing of your equipment.
A simple, compact and economical actuator for applications requiring reliable open/close or basic positioning control.
Key Features & Specifications
- Compact, robust design: Electric part-turn actuator designed for industrial valve and damper applications.
- Reliable motor technology: Uses a short-circuit-proof synchronous motor with conventional, reliable actuator technology.
- Available sizes: S and M sizes, covering approximately 5–60 Nm.
- Actuating times: Approximately 3–120 seconds per 90°, depending on model and torque.
- Housing and protection: Aluminium housing with a plastic cover and IP66/IP67 protection.
- Maintenance: Maintenance-free design, suitable for continuous industrial operation.
- End-position adjustment: Adjustable switching cams allow precise definition of the end positions.
Available Accessories
A wide range of accessories is available, including potentiometers, position feedback, auxiliary switches, handwheels, position indicators and heating.
Key Features & Specifications
- Torque range: Available from 5 to 500 Nm across S, M, L and XL sizes.
- Motor technology: Uses a short-circuit-proof synchronous motor.
- Actuating times: Approximately 0.8–210 seconds per 90°, depending on size and configuration.
- Housing and construction: Robust aluminium housing and aluminium hood, providing a strong industrial construction.
- Protection: IP66/IP67 protection for demanding industrial environments.
- Precision operation: The switching camshaft is directly connected to the drive shaft, allowing accurate, backlash-free operation of the switching cams and potentiometer.
Available Accessories & Options
A broad range of accessories and configuration options is available, including position feedback, potentiometers, auxiliary travel switches, fail-safe capacitors, handwheels, heating, service switches and multi-turn configurations.
Explosion-Protected Applications
Nano+ can also be configured for explosion-protected applications through appropriate ARIS variants.
The ideal choice for applications where accurate electronic positioning, modulation, diagnostics and flexibility are more important than basic open/close control.
Key Features & Specifications
- Electronic control: Fully electronically controlled multi-turn actuator designed for precise positioning and modulating applications.
- Motor technology: Uses a brushless DC (BLDC) motor for precise and controllable operation.
- Available sizes: S, M and L sizes, covering approximately 5–200 Nm.
- Operating times: Approximately 2–210 seconds per 90°, depending on model.
- Precision gearbox: Designed for high control accuracy and long service life.
- Position detection: Non-contact, high-resolution absolute position detection eliminates mechanical wear associated with conventional position sensing.
- Configuration and commissioning: Simplified through buttons and menu navigation.
- Modular architecture: Additional options can be plugged in and automatically recognised.
- Housing and protection: Aluminium housing with IP66/IP67 protection.
- Operating temperature: Standard ambient temperature range of approximately −15 to +60 °C, with an optional extended range.
High-speed electronic modulation for applications requiring the advanced functionality of the Tensor² platform, but with faster actuator movement while retaining precise electronic control.
Key Features & Specifications
- High-speed performance: Faster version of the fully electronic Tensor² platform, designed for applications requiring quicker positioning.
- Torque range: Available from approximately 5 to 500 Nm across S, M, L and XL sizes.
- Motor technology: Uses a brushless DC (BLDC) motor with fully electronic control.
- Operating times: Approximately 0.7–210 seconds per 90°, depending on size and configuration.
- Power supply: Supports AC 85–265 V and DC 24 V drive configurations.
- Position detection: High-resolution, non-contact absolute position detection for accurate and wear-free positioning.
The industrial linear actuator platform for dampers, flaps and valves requiring controlled linear force and precise stroke positioning.
Key Features & Specifications
- Linear motion: Converts rotary actuator movement into precise linear movement for industrial applications.
- Available stroke lengths: Standard stroke lengths of 150 and 300 mm, with other lengths available on request.
- Drive head compatibility: Available with different ARIS drive heads, including Nano+, Tensor² and Tensor² Highspeed.
- Actuating force: Maximum actuating force of approximately 5,000 N.
- Operating speed: Approximately 0.5–12.5 mm/s, depending on drive configuration.
- Drive mechanism: Stainless-steel trapezoidal/lead screw with precision axial bearing technology.
- Anti-rotation mechanism: Incorporates maintenance-free Iglidur® bearings.
- Interchangeable actuator head: The actuator head can be interchanged, providing considerable configuration flexibility.
- Applications: Designed for precise linear adjustment of dampers, valves and industrial mechanisms.
Available Accessories & Options
Available options include handwheels, fail-safe capacitors, position indication, potentiometers, heating, additional switches and multi-turn configurations.
A precision linear actuator designed primarily for valve adjustment applications requiring shorter stroke lengths, high thrust forces and accurate positioning.
Key Features & Specifications
- Valve positioning: Precision linear actuator particularly suited to industrial valve adjustment applications.
- Available stroke lengths: Standard strokes of 50 and 80 mm, with other lengths available on request.
- Drive head compatibility: Can be equipped with Nano, Nano+, Tensor² and Tensor² Highspeed drive heads.
- Actuating force: Maximum actuating force of approximately 6,000 N.
- Operating speed: Approximately 0.1–1.3 mm/s, depending on drive configuration.
- Drive mechanism: Stainless-steel trapezoidal threaded spindle for precise movement and positioning.
- Self-locking mechanism: The spindle arrangement provides self-locking and self-holding characteristics, supporting stable valve positioning.
- Bearing technology: Uses precision axial needle bearings and maintenance-free Iglidur® anti-rotation bearings.
- Interchangeable drive heads: Provides flexibility between conventional electromechanical and fully electronic control.
- Applications: Suitable for applications requiring high linear force, accurate valve positioning and compact installation.
Zjaan Haarhoff
Puseletso Bopape