Camtorc Actuators

Camtorc is a specialist manufacturer/supplier of extreme service quarter-turn pneumatic and hydraulic actuator control systems for the on/off and modulating control of valves and dampers. The Camtorc provides high actuator efficiency in a compact design, limiting the amount of infrastructure and associated costs to install. Camtorc actuators are based on proven designs and are produced from top quality materials. Every part is meticulously selected and subjected to stringent ISO 9001 and ATEX quality inspection procedures ensuring excellent technical performance and long service life.

Camtorc Extreme Pneumatic Actuators

Camtorc actuators thrive in critical applications within the oil and gas, energy, and marine sectors, where reliability is paramount. The Camtorc Extreme Services line builds on the innovative legacy of Camtorc with enhanced technical specifications for operation in the most extreme environments. Engineered to excel in harsh conditions, Camtorc Extreme Services actuators deliver uncompromising performance and durability when and where it matters most.

Function: Spring Return, Double Acting
Body Materials: 316 Stainless Steel
Rotation: 95°
Torque Levels: Double Acting: 10 to 30,000 Nm / Spring Return: 10 to 20,000 Nm (Spring End)
Ingress Protection: Weatherproof to IP65/66
Pressure Rating: Pneumatic Actuators: 2 to 10 Bar
Certifications: ATEX II 2 G IIC c T*. (*Dependent on seal materials)
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Camtorc TripGuard System

As process-based industries pursue increased efficiency, reliability, and safety, partial stroke testing (PST) has emerged as a strategy to enhance shutdown valves. By periodically testing valve operation without fully closing, PST verifies performance while allowing continuous plant operation. However, many operators hesitate to implement PST due to the risk of inadvertent valve closure and process disruption. To realize the benefits of PST without undue risk, solutions are needed to ensure precise control and prevent spurious trips during testing. With improved PST technology, operators can confidently validate shutdown valve performance on an ongoing basis, contributing to greater efficiency, reliability, and safety across industrial plants.

Function Elements: Camtorc Pneumatic Spring Return Actuator, Valvescan VSD Controller, Dedicated PST Solenoid
Body Material: Carbon Steel or 316 Stainless Steel
Torque Levels: 20Nm to 25,000Nm Standard (up to 40,000Nm Available)
Solenoid Power Supply: 24VDC
Communication Options: HART, Wireless HART, Modbus
Pressure Rating: Up to 12 BarG - Air
Certifications: Camtorc Actuator: ATEX VSD Controller: ATEX / IECEx II 2 G / Ex d (ib) IIC T4/T5/T6 Gb PST Solenoid: Exd or Exm
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Frequently Asked Questions

Camtorc actuators find applications in a wide range of industries, including oil and gas, energy, and marine.

The unique cam design ensures highly efficient and backlash-free operation, contributing to extended seal and component life.

Camtorc actuators are constructed using 316 (CF8M) stainless steel, providing robustness and superior operational life.

The cam design offers a simple and efficient operation, contributing to lower maintenance requirements and extended overall lifespan.

The pneumatic spring return version exhibits a 15% increase in torque output at the beginning of the spring stroke, providing extra power for break torque. At the end of the spring, the torque output is the same as the double-acting variant.

Camtorc actuators are exceptionally low-wearing, leading to low maintenance costs and offering an optimum Whole Life Cost solution for the customer.

The torque range for double-acting Camtorc actuators is 10 to 30,000 Nm.

Yes, depending on the seal materials, the ambient temperature range varies. For example, Nitrile Seals have a range of -20°C to +60°C (T6).

The supply pressure range for pneumatic actuators is 2 to 10 barg.

Camtorc actuators can be certified with ATEX II 2 G IIC c T* (*dependent on seal materials) for hazardous environments.

The high torque output of the pneumatic spring return version allows for the use of smaller size actuators compared to conventional designs, providing flexibility in installation and adaptability to space constraints.

Camtorc actuators are weatherproof with an Ingress Protection (IP) rating of IP65/66, ensuring resilience against dust and water ingress. This feature enhances their durability and performance in challenging environmental conditions.


Camtorc Pneumatic Actuators

Function:Spring Return, Double Acting, Fail Safe
Body Material:Carbon Steel, Stainless Steel, 2 Pack Epoxy Coating (Marine)
Rotation:0-95° Rotation With Adjustable Stops
Torque Levels:20-30,000 NM Standard, Special To 40,000NM
Temperatures:-20°C to +60°C EPDM, -20°C to +130°C Viton, -45°C to +170°C (Special)
Operating Media:Dry/Lubricated Air, Non-Corrsive Gas, Hydraulic
Pressure Rating:Max 12 Bar (Pneumatic), 50-210 Bar (Hydraulic), 400 Bar (Special)
Certifications:ATEX, ATEX II 2 G IIC c T3,T4,T6


Camtorc is a specialist manufacturer of quarter-turn carbon and stainless steel pneumatic and hydraulic actuators. Camtorc actuators operate in demanding environments such as the oil and gas industry, the energy sector and marine environments. Camtorc focuses on manufacturing products which are simple in design, robust and user friendly, without compromising on the required functions.

Features & Benefits

  • Unique, simple design to extend the life of seals and components.
  • Full carbon or stainless steel construction for all actuator components – fully tested on assembly.
  • Standard natural finish (SX & CX). 2 pack epoxy coat for marine offshore (S & CS).
  • Compact, resulting in a smaller size actuator.
  • Low wearing, low maintenance.
  • Emergency shutdown function.
  • Can limit the effects of aggressive environments which might make the actuator unsafe.

Tripguard System

The Camtorc Tripguard system is a unique feature to Camtorc as a manufacturer. It operates as a normal shutdown system, fitted to the valve and connected to a pneumatic supply. This helps with testing, as it helps the pressure act as a brake in the event of a problem with the valve. This makes a Camtorc actuator an ideal choice for environments where safety is critical, as it eliminates Spurious Trip Risk.


Where most actuators have a single piston system, the Camtorc pneumatic actuators have two pressure pistons, operating independently. One piston dedicates itself to compressing the fail safe spring, whilst the other turns the valve. This allows for greater control of the actuator and reduces valve stem sheer risk.

Electro Hydraulic

Where only electrical power is available, electro-hydraulic actuators are a way of providing fail safe actuation. More industries prefer electro-hydraulic actuators over the traditional pneumatic and hydraulic actuators as they don’t place a further demand on compressors and infrastructure which can already be overstretched. However, some types of electro-hydraulic actuators can be complex and prone to problems, and this is where Camtorc electro-hydraulic actuators are unique. They have been specifically designed to offer simple and reliable process control, significantly improving reliability and productivity. The Camtorc electro-hydraulic actuator has been developed with over 30 years of research and development and has gained a reputation for being one of the most robust products on the market using only carbon or stainless steel construction. The cam yoke system is the perfect work horse for some of the worlds most demanding applications. Additional options include the VSD Electronic Controller & Electro Hydraulic Power Pack.