EDITOR’S CHOICE
such as 6061-T6 are commonly used for their strength-to-weight ratio.
Grease selection also plays a key part to increase the life expectancy in a harsh environment. Synthetic lithium complex greases with high load-carrying capabilities (NLGI Grade 2), such as those with PTFE additives or NSF H1-certified lubricants for food-grade use, are ideal. Always confirm compatibility with both the application environment and the actuator’s internal seals.
3. DOCUMENTED PERFORMANCE METRICS AND LIFECYCLE TESTS
Linear actuator performance metrics and lifecycle tests typically involve evaluating speed, force, acceleration, duty cycle, and L10 life, which estimates the time to failure for a certain percentage of actuators under specific conditions. Ask to see copies of these to confirm the actuator will perform to your requirements for the expected length of time. Also, ask the manufacturer if they have any customers that are using the actuator you are considering in similar applications or case studies.
4. COMPLIANCE
Is the linear actuator compliant with relevant industry standards? All actuators sold in the UK must be made to ISO 12100 / ISO 13849, and Machinery Directive 2006/42/EC. In certain sectors, additional standards may apply such as ISO 13485: Medical device quality management, and EHEDG / FDA for food-grade equipment and cleanroom applications. In addition to this, check the actuator’s IP rating and environmental certifications to ensure it is suitable for use in your specific application and environment.
5. BUY FROM A REPUTABLE MANUFACTURER One way to ensure you only purchase an actuator that is compliant is to buy from a reputable manufacturer. Check that manufacturer is ISO 9001 certified. This is a globally recognised standard for quality management and is a clear demonstration of their commitment to quality throughout their organisation. In addition to good quality product, a reputable manufacturer will also be able to offer you technical support and stock spare parts which, if you’ve ever been left in the lurch waiting several weeks for a part, you will know the value of.
6. PRICE
As the famous American investor Warren Buffett once said: “Price is what you pay. Value is what you get.” So, if you buy cheap, expect to get a cheaply made, poor quality actuator. There is no cutting corners when it comes to making a linear actuator. But investing in a quality actuator ensures higher efficiency, less downtime, and long-term savings.
By understanding what defines actuator quality and asking the right questions, engineers can make more informed decisions that ultimately benefit system performance and safety. Matara
www.matara.com INDUSTRIAL COMPLIANCE |AUTUMN 2025 9
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