What the numbers establish
They establish recorded asking-price evidence for machines identified as Yama Seiki SW20. They do not establish a completed sale, operating condition, ownership, availability, included tooling, currency, warranty or final negotiated amount.
How to narrow the value
Confirm the data plate, exact suffix, model year, control, spindle and axis configuration, hours, options, maintenance history, geometry, operating proof and all removal obligations.
Retained model specifications
Max. headstock stroke: 207 mm ( 8.15" ) Turning Tools: 6 Turning Size: ? 12 mm × 100~135 mm ( 0.47" × 3.93"~5.31" ) ID. Holder Tool # 4 Max. Drilling Capacity: Ø 10 mm ( 0.39" ) Max. Tapping Capacity: M8 × P1.25 Max. Die Cutting Capacity: M8 × P1.25 Power-Driven Attachment Tool # 5~10 Max. Drilling Capacity:Ø8 mm ( 0.31" ) Max. Tapping Capacity: M 6 × P1.0 Max. Milling Capacity: Ø10 mm ( 0.39" ) Max. Slotting Capacity: 1.5 mm (W ) × 4 mm (D ) ( 0.06" × 0.16" ) Main spindle Indexing: 0.01° ( C-axis control )Spindle motor output (cont.): 2.2 kW ( 3 HP ) Spindle motor output (15min.) 3.7 kW ( 5 HP ) Power-driven attachment Spindle Speed MAX. 8,000 rpm Power-driven attachment drive motor 1.2kW ( 1.63HP ) Coolant tank capacity 150 L ( 40 gal ) Max. chucking diameter Ø20 mm ( 0.79" ) Max. length for front ejection 80 mm ( 3.15" ) Max. parts projection length 30mm ( 1.18" ) Tool # 4 Rear End ToolsMax. Drilling Capacity Stationary Tool Ø8 mm ( 0.31" ) Power-driven tool Ø5 mm ( 0.2" ) Max. Tapping Capacity Stationary Tool M8 × P1.25 Power-driven tool M4 × P0.7 Sub-spindle indexing 0.01° (C-axis control ) Sub-spindle speed MAX. 8,000 rpm Sub-spindle motor 1.5 kW ( cont. ) / 2.2 kW ( 15min. ) / ( 2.01HP / 2.95HP )