Mitsui Seiki HT3A HORIZONTAL MACHINING CENTER

Technical Description

The 1995 Mitsui Seiki HT3A Horizontal Machining Center is a high-precision 4-axis CNC machine designed for complex machining tasks requiring robustness and accuracy. It features a Fanuc 15-M control system, enabling advanced programmability and CNC automation. The unit is equipped with dual pallets, each measuring 15.75" x 15.75", allowing efficient part changeover and increased productivity. The machining travels are substantial for its class, with X, Y, and Z axes traveling 21.65", 19.68", and 21.65", respectively, providing a balanced workspace for intricate parts. The spindle system incorporates a BT 40 taper, running at speeds from 200 to 20,000 RPM, supported by a 20 HP main drive motor with a 30-minute rating, enabling high-speed cutting and finishing operations. The spindle to pallet top surface distance ranges from 5.9" to 25.59", while the spindle end to pallet center distance varies from 4.72" to 24.4", offering flexibility in workpiece sizes and tool reach. This machine supports a maximum pallet load capacity of 882 lbs, accommodating heavy workpieces. Additional features include precise pallet indexing with 360,000 positions and rapid traverse rates up to approximately 945 IPM, facilitating swift and precise tool and workpiece positioning. The HT3A is well-suited for aerospace, automotive, and general manufacturing sectors requiring high accuracy, repeatability, and robust horizontal machining capabilities. Its combination of powerful spindle performance, rigid construction, and dual-pallet automation enables efficient high-volume production runs with minimal downtime.