NIIGATA MACHINE TECHNO USA, INC. SPN503 HORIZONTAL MACHINING CENTER

The Niigata Machine Techno USA, Inc. SPN503 Horizontal Machining Center is a high-performance, rigid-structured HMC designed for precise, heavy-duty machining applications. It features a **19.7" x 19.7" table** with a maximum workpiece load capacity of **1,320 lbs**, supported by a robust BOX in BOX structure that minimizes deflection to maintain geometric accuracy and squareness during high-speed operations. The machine operates on **3 axes with an optional 4th axis**, providing travels of **31.5" (X), 29.5" (Y), and 29.5" (Z)** with rapid traverse rates up to **2,401 ipm** on all axes. The spindle is horizontally oriented with a **CAT 50 taper**, delivering a **standard 40 HP output at a top speed of 10,000 RPM**, with an optional 50 HP spindle. A dual-stage automatic tool changer (ATC) holds **62 tools as standard, expandable up to 308**, achieving a fast tool change time of **1.40 seconds** and chip-to-chip time of **3.00 seconds**, maximizing production efficiency. It includes a standard dual-pallet changer system supporting 2 pallets for seamless part loading and unloading. The machine’s design incorporates **linear guideways on all axes** to maximize machining speed and stability. The SPN503's construction allows for simple 3-point leveling and uses a high-rigidity base with honeycomb design for enhanced structural stability, ensuring long-term precision performance. Optional features include rotary tables and advanced spindle configurations, making this machining center versatile for diverse industrial applications requiring high throughput and accuracy.