JOHNFORD - ROUNDTOP MACHINERY COMPANY HMC-500 HORIZONTAL MACHINING CENTER

Technical Description

The Johnford HMC-500 Horizontal Machining Center features a robust horizontal spindle with a CAT 40 taper standard, and an optional CAT 50 taper, supporting up to 15,000 RPM (standard top speed typically 10,000 RPM). It is equipped with a 50 HP spindle motor rated for 30-minute operation, enabling heavy-duty cutting tasks. The machine includes a 60-position automatic tool changer (ATC), expandable to 120 tools, facilitating high productivity and flexibility. Its worktable measures 24.8" by 19.7", capable of supporting workpieces up to 1,210 lbs, ideal for medium to large-sized parts. The HMC-500 provides 4 axes of motion, with linear travels of 30" (X), 26" (Y), and 26" (Z), complemented by a B-axis rotary table with 360° continuous rotation for complex multi-axis machining. Rapid traverse rates are optimized for efficient positioning, with typical feed rates reaching up to 591 inches per minute. Precision is enhanced by full 4th axis indexing at 0.001-degree resolution. The machine is CNC-controlled, often with a Fanuc 18iMB system, and offers through-spindle coolant at pressures up to 1,000 PSI, improving tool life and chip evacuation. Additional features include screw-type chip conveyors, a pallet system for quick workpiece changeover, and optional tooling expansions, making it suitable for complex, high-volume production environments requiring versatility, rigidity, and precise horizontal milling operations. Overall, the Johnford HMC-500 is engineered for high accuracy, reliability, and productivity in industrial machining applications.