1250mm Heckert Model CWK 1250 P HMC, 1995 – Full 4th Axis, Thru-Spindle Coolant

Workholding Fixture/Pallet Data
• Dimensions: 1000 mm x 1250 mm
• Max. Loading Weight: 5000 kg (11023 lbs.)
• Max. Load Distribution Moment on Pallet: 1500 Nm (1106 ft-lbs.)

Working Range Data
• X axis Travel: 1840 mm (72”)
• Y axis Travel: 1200 mm (47”)
• Z axis Travel: 1270 mm (59”)
• Distance between Horizontal Spindle Center & Upper Pallet Edge: 20
mm to 1220 mm (0.8” to 48”)
• Distance between Front Edge of Horizontal Spindle & Center of Pallet
(with Pallet @ 0°): 290 mm to 1540 mm (11.4” to 60.6”)
• Interfering Circle Diameter in Work Area & At Clamping Station: 1800
mm (70.9”)
• Workpiece Height within Interfering Circle: 1550 mm (61”)

Work Area Data
• Min. Height of Workpiece Clamping Surface Above Floor Level @
Clamping Station: 1240 mm (48.8”)
• Max. Height of Workpiece Clamping Surface Above Floor Level @
Clamping Station: 1270 mm (50”)

Spindle Data
• Front Bearing Diameter: 170 mm (6.7”)
• Tool Receiving Socket: DIN 2079 – 50
• Short Taper Shank: Short Taper DIN 69871 – A 50 with Draw-bolt DIN
69872 – 28 -or- Short Taper DIN 69871 – B 50 with Draw-bolt DIN
69872 – B 28
• Max. Speed: 4000 RPM
• Main Gearing: Two Speed
• Spindle Alignment: Electronic
• Max. Torque on Spindle (w/ Extended Quill) @ 22 kW Rated Power &
100% On-Time: 1040 Nm (767 ft-lbs.)
• Torque on Spindle (w/ Extended Quill) @ 22 kW Rated Power & 60%
On-Time: 1370 Nm (1010 ft-lbs.)

X, Y & Z Axes Linear Feed Data
• Constant Feed Force: 18 kN (4047 lbs.)
• Max. Technologically Useful Feed Force: 20 kN (4496 lbs.)
• Max. Machining Feed, Rapid Traverse: 24 m/min (945 ipm)
• Measuring Systems: Linear, Optical-Incremental
• Accuracy Class: +/- 5 μm (+/- 0.0002”)
• Division of Grating: 20 μm (0.0008”)
• Input & Indicating Fineness: 1 μm (0.00004”)
• Safety Device: Y Axis Safety Brake
• Hydraulic Weight Balancing: in Y Axis

B Axis Indexing/Rotary Table Data
• Max. Indexing Speed: 6 RPM
• Indexing Divisions: 360° x 1
• Max. Rotary Speed: 8 RPM

• Rotary Tangential Moment in Locked Condition: 26000 Nm (19177 ft-
lbs.)

• Rotary Tangential Moment During Machining: 5400 Nm (3983 ft-lbs.)

• Rotary Input and Fineness: 0.001°

Chain Type Tool Magazine Data
• Number of Storage Locations: 80
• Max. Tooling Diameter w/ Completely Filled Magazine: 125 mm
(4.92”)
• Max. Tooling Diameter w/Free Adjacent Locations: 250 mm (9.84”)
• Max. Diameter of Bridge Type Tools: 500 mm (19.69”)
• Max. Tool Length: 600 mm (23.62”)
• Max. Tool Weight: 35 kg (77.2 lbs.)
• Max. Permissible Total Weight of Tools in Magazine: 800 kg (1764
lbs.)
• Chain Speed: 24 m/min (945 ipm)
• Tool Change Time (for up to 15 kg tool weight) = 14 sec

Accuracy Data
• Backlash on Reversal, Umax: 0.008 mm (0.0003”)
• Indexing Accuracy of Indexing Table: +/- 3 seconds
• Indexing Accuracy of Rotary Table: +/- 6 seconds

Coolant System Data
• Tank Capacity: 1000 l (264 gal)
• Coolant Supply Pressure Through Nozzles: 2 bar (29.4 psi)
• Coolant Supply Volume Through Nozzles: 50 l/min (13.2 gpm)
• Coolant Supply Pressure Through Center of Spindle: 30 bar (441 psi)
• Coolant Supply Volume Through Center of Spindle: 30 l/min (7.9 gpm)

Space Requirements & Weight Data
• Base Machine Weight as Erected: 25200 kg (55556 lbs.)
• Total Weight Scope of Delivery: 32200 kg (70989 lbs.)
• Overall Length: 8525 mm (335.6”)
• Overall Width: 6350 (250”)
• Machine Height (From Upper Edge of Foundation): 4070 mm (160.2”)
• Erection Height: 4200 mm (165.3”)

Equipped With:
– Fanuc Series 16-M CNC Control
– Two (2) 1250 mm Pallets
– B Axis Indexing/Rotary Table
– Smog Hog Air Cleaner