LK Metrology Altera SF CMMs Provide High-Precision Inspection for Large Workpieces!

LK Metrology has unveiled its latest innovation in coordinate measuring machines (CMMs) with the introduction of the Altera SF series. Designed for high-precision inspection of bulky and large workpieces, these bridge-type CMMs offer impressive laboratory-grade accuracy and large measuring volumes that range from 1,000 × 1,000 × 800 mm up to 4,000 × 1,500 × 1,500 mm. This expansive measurement capability allows for the inspection of large components directly at the production site, providing operational flexibility and enhancing quality control across a variety of component sizes.

The Altera SF models are engineered with a ceramic bridge and spindle, offering superior stiffness-to-weight ratios, thermal stability, and dimensional consistency. These materials ensure that the machines perform consistently over extended periods of time, making them ideal for high-precision measurements in demanding industrial environments. The air-bearing friction drives ensure smooth axis movements, which are crucial for achieving high-accuracy laser or analogue scanning as well as touch-trigger probing.

These CMMs are equipped with advanced probe heads such as the Renishaw PH10MQ PLUS indexing probe head and the REVO2 head, which converts the CMM into a five-axis scanning model. These heads support multisensor technology, allowing users to perform a wide range of measurements with enhanced flexibility and accuracy.

Temperature management is a critical factor in ensuring consistent measurement accuracy. To address this, the Altera SF CMMs come with thermal covers that protect the guideways from thermal influences and accidental damage. In addition, the machines feature fans beneath the granite table to maintain ambient air circulation, mitigating thermal imbalances, especially in environments without precise temperature control. Integrated temperature sensors monitor heat fluctuations, and all measurements are compensated to a 20°C reference, ensuring reliable results even in fluctuating conditions.

The Altera SF models also incorporate glass-ceramic optical scales that have zero thermal expansion and are highly resistant to contamination. These low-maintenance scales ensure long-term stability, reducing potential sources of measurement errors and enhancing the overall accuracy of the machine.

Vibration and shock are often major challenges in maintaining precision during measurements. To counteract this, the Altera SF machines feature elastomer antivibration mounts that isolate the CMM from mechanical disturbances, such as those caused by nearby machine tools. For even greater stability and accuracy, users can opt for the active intelligent antivibration system, which uses built-in magnetic field sensors to adjust the table’s height and level automatically, ensuring the highest measurement accuracy.

In terms of automation, the Altera SF models come with the LK NMC300 multipurpose controller and the CAMIO software suite, making them ready for integration into in-line or line-side automation for large-volume production environments. Real-time monitoring of quality data, CMM performance, and system status is available through smart devices, providing operators with immediate access to critical information.

In addition, the EcoAir function, which reduces compressed air consumption by up to 95% when the CMM is idle, helps reduce operating costs, further enhancing the cost-effectiveness of the Altera SF machines.

With its advanced features and robust design, the Altera SF series from LK Metrology offers an ideal solution for manufacturers needing reliable, high-precision inspection capabilities for large, complex workpieces. Whether for aerospace, automotive, or heavy machinery applications, these CMMs deliver enhanced operational efficiency and support higher productivity, meeting the growing demands of modern manufacturing.