MITSUI SEIKI HW550S HORIZONTAL MACHINING CENTER

Technical Description

The Mitsui Seiki HW550S is a high-precision 4-axis horizontal machining center optimized for aerospace and other demanding industries. It features a 21.65" x 21.65" square pallet capable of supporting workpieces up to 1,760 lbs, with optional indexed and rotary table support. The spindle is horizontally oriented with a #40 taper and a standard top speed of 6,000 RPM, upgradeable to 12,000 RPM, delivering 40 HP continuous power. The machine is equipped with an automatic tool changer (ATC) with a standard capacity of 60 tools, expandable to 120 tools, and includes a standard pallet changer with two pallets, option for up to 10. Axis travels are substantial: X - 29.53", Y - 31.5", and Z - 33.46", with rapid traverse rates of up to 2,362 inches per minute across all axes and precise rotary B-axis full 360° rotation. The machine utilizes FANUC CNC controls (model 30iMA or similar) for advanced programming and operation. Overall, the HW550S offers robust power, precision, and flexibility in a compact footprint to support complex and heavy machining tasks with high repeatability and throughput. Its combination of tooling capacity, automation, and accuracy makes it suitable for high-production machining and tight-tolerance components.