DORRIES SD 250 vertical boring mill available. Features a 98" table diameter, 110" swing, and 85" work height. Powered by 75 hp, reaching speeds up to 112 RPM. Dimensions: 216" L x 141" W x 147" H, weighing 75,000 lb. Used condition.
Face‑plate / Table Diameter: ~98 in
Maximum Swing Diameter: ~110 in (≈2794 mm) with side head down
Height Under Rail: 85 in (≈2159 mm)
Table Load Capacity: ~110,000 lb (≈50 ton)
Table Speed Range: Variable up to ~112 RPM
Cross Travel of Ram Head (X‑axis): ~61 in (≈1550 mm)
Vertical Travel of Ram Head (Z‑axis): ~42 in (≈1067 mm)
Turret Head Vertical Travel: ~29.5 in (≈750 mm)
Horizontal Travel of Side (Swivel) Head: ~29.5 in (≈750 mm)
Main Drive Motor Power: ~75 HP (≈56 kW)
Power Requirements: 480 V, 3-phase, 60 Hz
Overall Dimensions (L × W × H): ~216 × 141 × 147 in (~5.5 × 3.6 × 3.7 m)
Machine Height: ~141 in (≈3.6 m)
Approximate Weight: ~75,000 lb (~33 t)
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