The SUPRA-1640AHD from ACER is an advanced, large-capacity grinding machine designed to deliver exceptional precision and efficiency for demanding production environments. With a generous 16-inch by 40-inch working capacity, this surface grinder is built on a heavy-duty platform that weighs approximately 6-600 lbs, providing the mass and rigidity necessary to absorb vibration and maintain accuracy during aggressive machining.

This model features 3-axis automatic movement, making it ideal for unattended operation and complex grinding cycles. The longitudinal axis is controlled by a powerful hydraulic table drive, allowing for variable table speeds between 16 and $80 feet per minute. The cross-feed is managed electronically, and the vertical axis utilizes an automatic incremental downfeed system with a minimum increment of 0.0001 inch for ultra-fine finishing passes.

Key to the SUPRA-1640AHD’s precision is the use of Turcite-B-coated guideways on the table and saddle, which minimizes friction and wear to ensure smooth, long-lasting accuracy. The machine is driven by a 7.5 HP spindle motor that powers a large 14-inch grinding wheel at 1-750 RPM. Standard equipment includes a rapid elevation feature, a coolant system, a manual diamond dresser, and a wheel balancing setup- ensuring the grinder is ready for high-performance operation right out of the box.