Historical vertical machining center specifications based on 3 UMS machine records spanning 2000–2001.
Historical reference information — not a machine-for-sale listing. Values can vary by year, control, spindle package and optional equipment.
Historical ES-4020 Specifications by Year
Each block below is an actual historical UMS machine record for this exact model. Differences by year, control and configuration are preserved rather than averaged together.
2000 Okuma ES-4020
2000 Okuma ES-4020 historical configuration
Control: OSP-700/CRT
X-Axis Travel40 "
Y-Axis Travel20 "
Z-Axis Travel20 "
Table Width20.08 "
Table Length47.27 "
Maximum Table Load1500 lbs
Spindle Taper40
Main Motor (HP)14/10/7.5 hp
Tool Changer Positions20 atc
Spindle Nose to Table Minimum7.87 "
1 historical UMS record: #14848
2001 Okuma ES-4020
2001 Okuma ES-4020 historical configuration
Control: OSP CNC Control
X-Axis Travel40 "
Y-Axis Travel20 "
Z-Axis Travel20 "
Table Width20.08 "
Table Length47.27 "
Maximum Table Load1500 lbs
Spindle Taper40
Main Motor (HP)14 hp
Tool Changer Positions20 atc
Spindle Nose to Table Minimum7.87 "
2 historical UMS records: #15651, #15994
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