2001 OKUMA ES4020 VERTICAL MACHINING CENTER

Technical Description

The 2001 Okuma ES4020 is a 3-axis vertical machining center manufactured by Okuma Corporation, a Japanese precision machine tool builder. The ES4020 is Okuma's entry-level production VMC in the popular 40 by 20 inch work envelope class, designed to provide reliable three-axis milling, drilling, boring, and tapping for job shops and manufacturers seeking Okuma quality at an accessible price point. The machine table measures approximately 47 by 20 inches with axis travels of 40 inches in X, 20 inches in Y, and 20 inches in Z. A 15 HP spindle through CAT40 taper tooling reaches 8,000 RPM, delivering dependable performance across steel, cast iron, aluminum, and non-ferrous workpiece materials. A 20-station automatic tool changer supports multi-operation production programs. The Okuma OSP-U10M CNC control provides conversational and G-code programming, three-dimensional canned cycles, rigid tapping, and Okuma's proven thermal error compensation technology, making the machine accessible to operators at all experience levels while maintaining full production capability. Overall machine dimensions of approximately 110 by 90 by 117 inches and a weight of approximately 8,800 pounds reflect a compact footprint well suited to facilities with limited floor space. The ES4020 shares Okuma's core engineering philosophy of rigidity and reliability in a cost-effective package, offering the build quality and control technology that have made Okuma a preferred brand in North American job shop and production machining environments.