The new PMT GAMMA Series Arm, available in the UK from
Manchester Metrology Ltd, the UK’s official supplier of PMT products, is described as a ‘game-changer in portable measurement’. Building on the success of the ALPHA series, it features an innovative dual suspension support structure, offering enhanced stability and usability. Designed with the world’s first external decoupling and built-in balancing mechanism, the GAMMA Arm delivers optimal function, flexibility, reduced joint loads and extended standby time. Its lightweight aerospace-grade carbon fibre build makes it a reliable and portable choice for both on-site and in-house applications across various industrial sectors.
Available in three configurations — GAMMA P, GAMMA M and GAMMA E — the GAMMA Arm is available at a price-point to suit all budgets and uses. Key features include: the world’s first external decoupling and internal balancing system; dual suspension support structure; four-jaw quick-mount base collar; specialised 5G Wi-Fi module; smart sensing probe system; high-speed wired USB connection; and aerospace-grade carbon fibre build.
The device also has a force-isolation design which refers to the mechanism that separates the hand grip from the scanning head on the GAMMA Arm, effectively decoupling holding pressure from the gravity of the scanning head. This advanced approach ensures greater scanning accuracy and stability, making it ideal for complex measuring tasks.
Avoiding bottlenecksFurthermore, an optional GAMMA blue laser scanner enhances the GAMMA Series with its optimised optical design, ensuring more stable scanning accuracy. It enables precise measurement in complex usage scenarios, addressing all required features and helping to overcome the bottlenecks that traditional contact probes face, such as measuring the dimensions of large, special-shaped workpieces, while maintaining optimal function.
An optional PMT GAMMA eight-axis rotary worktable is available that connects directly with the GAMMA seven-axis arm, providing a fully enclosed, high-accuracy add-on axis that saves time and effort during hardware set-up. Unlike turntables, the rotary worktable is fully transparent to the measurement software and requires no software upgrades. This allows the real-time rotation of the workpiece in relation to the measuring arm, eliminating the need to reposition either the part or the arm.
Key benefits include: reduced measurement time — the eight-axis extends the measuring range, enabling users to scan, measure and digitalise both small and large parts from a single arm position, reducing measurement time by up to 40% compared to a standard seven-axis arm; improved operator efficiency — the eight-axis configuration removes concerns about measuring dead spots, ensuring minimal disruption to inspection tasks and enabling quicker digitalisation of complex parts; accelerated subsequent processing — by reducing the number of scans that need to be aligned, the eight-axis accelerates subsequent processing tasks by eliminating the need to move the measuring arm around the part or reposition the part to capture all necessary features.