DN Solutions DNM 500 II VERTICAL MACHINING CENTER

Technical Description

This vertical machining center features a **47.2" x 21.3"** worktable with a maximum workpiece weight capacity of **1,764 lbs**, supporting heavy-duty machining tasks. The spindle is vertically oriented with a **Big Plus #40 taper**, delivering a standard maximum speed of **8,000 RPM**, optionally up to **12,000 RPM**, powered by a **20.1 HP (30 min rating)** motor, ensuring robust cutting performance. The **Automatic Tool Changer (ATC)** standard holds **30 tools**, expandable to **40 tools**, with a tool change time of **1.3 seconds** and chip-to-chip time of **3.7 seconds**, optimizing process efficiency. The machine offers **3 axes of travel** (X=40.2”, Y=21.3”, Z=20.1”) with feed rates up to **590 ipm** and rapid traverses at **1,417 ipm**, suitable for precision multi-axis machining with optional 4-axis capability. A pallet changer is optionally available for increased productivity. The Big Plus spindle system ensures **dual simultaneous contact** between the spindle taper and flange face, minimizing axial toolholder movement and enhancing tool rigidity, repeatability (within 1 micron during ATC), surface finish, and machining accuracy. This system surpasses traditional taper-only spindles by providing superior vibration damping and extending tool life, critical for high-speed precision operations. This machining center is well-suited for demanding applications in aerospace, automotive, mold making, and heavy industry, combining high stiffness, rapid tool changes, substantial work envelope, and advanced spindle technology to maximize efficiency and precision.