ZIMMERMANN INC. FZ 20-3 VERTICAL MACHINING CENTER

Technical Description

This CNC machining center features a robust table with dimensions of 95" x 78.74" (expandable to 160" x 118"), supporting workpieces up to 50,000 lbs, suitable for large and heavy-duty manufacturing tasks. It operates with a vertical spindle equipped with an SK40 taper interface, conforming to the DIN ISO 7388-1 standard for steep tapers, which ensures excellent rigidity, concentricity, and high-speed stability up to 12,000 RPM. The spindle is rated at 9 HP (30-minute duty cycle), providing strong torque and reliable performance for moderate to heavy machining workloads. Tooling is manual with a single tool carrier and zero seconds tool change chip time, emphasizing manual operation or setups with minimal tool changes. The machine comprises 3 axes (X, Y, Z) with travels of 80" (optional 220") in X, 92.91" (optional 132") in Y, and 39.37" (optional 50") in Z, each with a maximum feed and rapid traverse rate of 650 inches per minute, enabling precise and efficient movement across a large work envelope. The SK40 taper spindle supports a broad tooling ecosystem, offering superior clamping force and stability for medium-to-large cutting tools, particularly valued in European manufacturing environments for its high concentricity and durability under spindle speeds reaching 12,000 RPM. This configuration makes the machine ideal for demanding milling applications requiring both size and power with reliable manual tooling control.