Laminar Pte Ltd Singapore

Laminar Pte Ltd


Torque Limiters

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Group 1 1
Torque Limiters


Torque limiters are indispensable in ensuring seamless and secure operation of various mechanical systems. These devices are meticulously engineered to shield equipment from the perils of torque overloads. This danger can wreak havoc and cause costly downtime.

During normal operations, torque limiters provide a wide range of advantages. They function as overload clutches, swiftly disengaging power transmission when torque surpasses a predetermined threshold. Their primary objective is to avert damage resulting from excessive handwheel torque. This critical function is a bulwark against mechanical overloads, safeguarding equipment and personnel from potential harm.

One common type of torque limiter is the friction torque limiter. Comprising two friction surfaces that slip against each other when subjected to excessive torque, this ingenious mechanism effectively curtails the torque transmitted through the system, forestalling any damage.

Torque limiters come in diverse configurations to cater to varied applications. Some incorporate built-in torque springs that facilitate adjustable torque settings, granting adaptability in regulating maximum allowable torque levels. These torque overload protectors are seamlessly installed on the handwheel input shaft.

When selecting the optimal solution for your requirements, you must weigh the maximum allowable torque, speed requisites, prevailing environmental conditions, and desired response time.

Incorporating torque limiters into mechanical systems is essential to enhancing operational safety and efficiency. These devices offer peace of mind by preventing costly damage from torque overloads while optimising overall performance.

A large speed ratio can be applied for applications with high torque, conversely, in scenarios where pressure needs swift relief from the valve, a small speed ratio can be employed for rapid valve opening and closure.

Laminar’s torque limiters are suitable for valve attachment and couplings in accordance to EN ISO 5211. Other standards are available on request.


A torque limiter is a mechanical device that is pivotal in restricting the transmission of excessive torque or rotational force within a system. This vital function is achieved by diverting the pressure from the driving component and dissipating it through alternative means, such as interrupting an electrical circuit or engaging a clutch mechanism.

Torque limiters find their application in scenarios where safeguarding the integrity of drive components from unexpected or excessive loads is paramount. They prove particularly invaluable in machinery such as machine tools, shaft couplings, drive keys, flexible couplings, and various other industrial applications.

The market offers several torque limiters, including magnetic torque limiters, mechanical torque limiters, and friction plate clutches. Each type boasts advantages and disadvantages, choosing a torque limiter contingent upon the application’s specific requirements and nuances.

A torque limiter serves the purpose of restricting the level of torque or rotational force that flows through a system. In contrast, a clutch aims to facilitate the transmission of the maximum possible torque.

In practical terms, clutches are typically integrated into systems to ensure continuous and efficient power transmission. On the other hand, torque limiters take on a distinct role, primarily focusing on enhancing safety measures.

Torque limiters often find their application in packaging and various industrial machines. Their primary function is to uphold the safety of personnel by imposing a constraint on the torque capacity of these machines.

In contrast, clutches serve as a crucial component in machine design, delivering optimal performance across a range of applications, including packaging machines, machine tools, drive keys, flexible couplings, and shaft couplings. These clutches are meticulously designed to protect drive components from overloads by redirecting and dissipating force away from them.

Clutches are versatile and come in various forms, such as detent clutches, slip clutches, and those equipped with built-in torque springs, serving diverse needs within different systems.

To effectively configure a torque limiter, it’s imperative to adhere to these essential steps:


  1. Determine precise torque requirements: Start by identifying the specific torque limits needed for your application. This crucial data is typically available in equipment manuals or manufacturer-provided specifications.


  1. Select the right torque limiter: With various types on the market, opt for the one that aligns best with your requirements. Factors like load capacity, operational conditions, and the desired level of precision should guide your choice.


  1. Ensure correct torque limiter installation: Follow the manufacturer’s guidelines meticulously during installation. Proper alignment with connected shafts or components is crucial to maintain accuracy and reliability.


  1. Calibrate the torque setting: Use calibrated tools to fine-tune the torque setting on your chosen limiter device. Strictly adhere to manufacturer instructions to prevent overloading or underutilizing the system.


  1. Verify functionality through testing: After setting up the torque limiter, subject it to comprehensive testing. Apply incremental loads or simulate operational conditions and closely monitor its performance. Look for any signs of slippage, excessive vibration, or unusual behaviour.


  1. Refine adjustments if necessary: Should the need arise, make minor tweaks to achieve optimal performance based on real-world operational conditions while staying within specified limits.


These steps ensure that machinery operates safely within defined parameters and can shield against potential damage from excessive force or overloading.


It’s crucial to remember that consistent maintenance and periodic reassessment are equally vital for sustained effectiveness and compliance with safety standards.

When selecting a torque limiter, several critical factors come into play:

  1. Torque Capacity: The limiter must handle your application’s maximum torque requirements with a safety margin. Ensure it can reliably manage the necessary force.


  1. Operating Conditions: Assess temperature, speed, and environmental factors to confirm the limiter’s resilience. It should perform flawlessly under these conditions.


  1. Overload Protection Mechanism: Different torque limiters employ various overload protection mechanisms, such as friction-based, ball-detent, or magnetic-based systems. Understand how each function and its suitability for your specific application.


  1. Installation and Maintenance: Consider ease of installation and maintenance demands. A limiter should seamlessly integrate with existing equipment and systems while requiring minimal upkeep.


  1. Compatibility: Ensure compatibility with your current machinery and systems to avoid unnecessary complications during integration.


  1. Customer Feedback: Customer reviews and feedback can provide valuable insights. These real-world assessments highlight reliability, durability, and overall performance, aiding decision-making.

By meticulously considering these factors, you can make an informed choice when selecting a torque limiter, ensuring it aligns perfectly with your application’s needs and demands.

The market offers a diverse range of torque limiters, each tailored to specific industrial and application needs:
  1. Friction Torque Limiters: Rely on friction between surfaces to transmit torque, ensuring overload protection. Ideal for conveyors, packaging machinery, and material handling equipment.
  1. Shear Pin Torque Limiters: Employ shear pins designed to break under excessive torque, cost-effectively safeguarding equipment. Commonly found in agricultural machinery and industrial drives.
  1. Magnetic Torque Limiters: Utilise magnetic forces for disengagement during overloads, providing precise control over disengagement torque. Widely used in high-speed applications like printing presses, machine tools, and robotics.
  1. Ball Detent Torque Limiters: Feature ball bearings that engage or disengage based on applied torque, delivering precise overload protection with smooth, normal operation. Frequently utilised in automotive systems, power tools, and industrial automation.
  1. Slip Clutch Torque Limiters: Comprise two rotating plates with friction material between them. Under excessive loads, the plates slip, restricting transmitted torque. It is essential for machinery susceptible to sudden stops or jamming, such as woodworking equipment and printing machines.
Understanding these torque limiter types empowers you to select the perfect fit for your industry and application requirements.
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