Technical Description
The 2007 OKK HM-1250S is a high-performance 4-axis horizontal machining center engineered for precision, rigidity, and heavy-duty production environments. Featuring a robust design with a pallet size of 49.21" x 49.21", this machine supports a maximum workpiece load of 6,600 lbs, making it ideal for large and complex parts. The dual pallet system enables efficient workpiece changeover, minimizing downtime and maximizing productivity. The machine is equipped with a 60-position automatic tool changer, allowing for rapid and seamless tool transitions, while the CAT 50 spindle delivers a maximum speed of 8,000 RPM, ensuring high-speed cutting and excellent surface finishes. The spindle is powered by a 35 hp motor, providing ample torque for demanding machining operations. The Fanuc 310iS-A CNC control system offers advanced programming capabilities, including macro execution, tool offset memory, cutter compensation, and programmable mirror image, enhancing machining flexibility and accuracy. The HM-1250S also features full B-axis pallet contouring and rotation, enabling complex 4-axis machining operations with high indexing precision of 0.001°. Additional standard features include through-spindle coolant at 1,000 psi for improved chip evacuation and tool life, a Renishaw touch probe for precise workpiece measurement, and a Blum laser for automatic tool length measurement and breakage detection. The machine’s rapid traverse rates of 1,889 ipm on all linear axes ensure fast positioning, while its heavy-duty linear roller guides and core-chilled ball screws contribute to long-term accuracy and reliability. With a machine weight of 72,000 lbs, the HM-1250S delivers exceptional stability and vibration resistance, making it a top choice for high-volume, high-precision manufacturing applications.
