Knuth 20.1HP 118” DL S 425/3000 Universal Heavy-Duty Lathe 301511

Description

The DL S lathe series is slightly smaller than the DL E Heavy but is also designed for large turning diameters and workpiece lengths. It is the solution for conventional machining of workpieces up to 5000 mm (197 in.) in length and over 720 mm (28 in.) in diameter. The particularly wide and heavily ribbed machine bed accommodates the heavy workpiece weights. The multi-disc clutch gives the operator control over the dynamics of the spindle start-up and the rapid traverse in the support is particularly effective with large bed lengths.

Features

• Extra heavy, wide machine bed with heavy ribbing and mono-block construction
• Induction-hardened and ground guide slots ensure long-term accuracy and minimum wear
• Massive headstock with high-precision main spindle on a tapered roller bearing with 4 inch spindle bore for excellent stability under heavy loads
• Very quiet operation at maximum spindle speed
• Joystick control for X and Z feeds is mounted directly to support
• Manually shifted 4-step gearbox with high-quality frequency control combined with a powerful main spindle motor with up to 10 Hp power allow exact tuning of rpm and high torque to provide maximum power even under heaviest loads
• For quick positioning and reduced down-time, the support is equipped with a rapid feed on X- and Z-axes
• Adjustable overload clutch in apron protects the feed mechanics from damage and failure
• Central, practical controls for feeds and thread leads
• The auxiliary gearbox features a wide spectrum of diametric, inch, module, and metric threads
• Support and top slide are designed for high cutting forces
• More accuracy
• Lower error rate
• Increased productivity
• Resulting in valuable time savings
• For increased productivity
• Easy to read display
• Operator-specific features
• Convenient keyboard layout
• Resolution: 0.0004 / 0.0002"
• Default coordinates
• Axis position is maintained when display is turned off
• Hole circle pattern calculation
• Calculator function
• Storage for 10 tools
• Radius / diameter toggle
• Mm/inch conversion
• Easy expansion and maintenance-free operation
• Display for top (Z0) and box way slide (Z1) both separate and in differential / cumulative mode for lathes

Standard Equipment

• 3-axis position indicator
• 4-jaw-faceplate chuck Ø 31”
• 4-station tool holder
• Steady rest 1.5"-14"
• Follow rest 1.2”-4.7”
• Dead centers
• Reducing sleeve
• Chuck guard
• Protective shield for support
• Coolant system
• Foundation bolts
• Work lamp
• Operating tools
• Operator instructions

Specifications

• Working Area
  • Workpiece length (max.): 118”
  • Workpiece weight (max.): 8,800 lbs.
  • Turning diameter over bed: 33”
  • Turning-Ø over support: 20”
  • Gap bridge length: 19”
  • Bed width: 24”
  • Turning diameter over gap bridge: 45”
• Travels
  • Travel X-axis: 19.7”
  • Travel Z-axis: 106”
  • Travel Z1-axis: 10”
  • Swing range of top slide: 90°
• Headstock
  • Spindle mount: A2-11
  • Spindle speed: 5 rpm - 630 rpm
  • Spindle bore: 4”
• Rapid Feed
  • Rapid feed X-axis: 70.87”/min
  • Rapid feed Z-axis: 143.31”/min
• Feed
  • Feed speed X-axis: 0.0016”/min - 0.189”/min
  • Feed speed Z-axis: 0.0031”/min - 0.378”/min
  • Feed speed Z1-axis: 0.0008”/min - 0.0945”/min
• Tool Head 
  • Tool shank dimensions: 1.3" x 1.3"
• Threading
  • Threading, module: 0.0197” - 2.3622”
  • Threading, metric: (56) 0.04" - 5"
  • Threading, diametric: (56) 60-0,5 DP
  • Threading– inch: (49) 30 - 1/4
• Tailstock
  • Tailstock taper: 6 MT
  • Tailstock quill stroke: 10”
  • Tailstock quill diameter: 5”
• Drive Capacity
  • Motor rating main drive: 20.1 Hp
  • Motor rating feed: 1.5 Hp
  • Motor rating coolant pump: 0.2 Hp
• Measures and Weights
  • Overall dimensions (length x width x height): 203” x 60” x 60”
  • Weight: 12,980 lbs.

Options

• 251156 – Rest (4 - 20 inch)
• 251157 – Motorized tailstock movement
• 251158 – 3-jaw chuck (20 inch)
• 103184 – Coolant Concentrate 5 Ltr.
• 103026 - Quick-set spindle bore stop size 10 3.5-4.3"