Specifications:

    NOTE:
    This high-precision lathe is German made to the highest standards.  Designed
    specially for the rapid turning of extremely precise rings and disks, such as used in
    jet engines and turbines of all kinds, this lathe will substantially enable the production
    of all circular workpieces within its range, such as piston rings, bearings and
    bearing mounts, shims, spacers, valve components, etc. up to a 1250 mm
    (50" nom.) diameter.

Manufacturer                                                   Heyligenstaedt (Germany)
Model:                                                                DPN 1250

Main Dimensions
Centre Line Over Shop Floor:                         72.83"
Centre Line Over Operator's Platform:         52.95"
Max. Workpiece Diameter:                              49.21"
Adaptor Diameter for Clamping Discs:            59.06"
Max. Workpiece Width:                                    13.78"
Chuck Speeds:                                                    2.5 - 250 RPM (infinitely variable with
                                                                             cutting-speed adaptation)
Table Speed Range
No. of  gear ranges:                                           4
Driving Power:                                                   50 HP, plus auxiliaries

Carriages
                                   No. of Carriages:            2
                                   Carriage Travel:             20.47 ( Z and W axis )
                                   Carriage Travel:             50.61 ( X and U axis )
 Accuracy Both Heads
                                                                             Z axis ± .0004"
                                                                             X axis ± .0004"
 Repeatability - Both Heads
                                                                             Z axis ± .0002"
                                                                             X axis ± .0002"
Feeds
                                   Z and W Axis:                  3.94 ipm
                                   X and U Axis:                   3.95 ipm
Rapid Traverses
                                   Z- and W axis:                 236.22 ipm
                                   X- and U axis:                  236.22 ipm

Automatic Tool Changer:               12 Tools, both sides

Max. workpiece weight:                           10,000 lb.

Machine Weight, total:                    38 tons

Design Features:

    "... The chuck ring for tool accommodation has special [hydraulic pressurized]
    double anti-friction bearings. The drive is effected via a helical rim gear. There is
    continuous oil temperature/flow monitoring depending on revolutions. The
    labyrinth packing of the main bearing includes a pressurized seal, guaranteeing the
    integrity of the oil film, even down to zero revs, meanwhile totally excluding entry of
    all coolant.  The cross-travel bedways are parallel to each other on both sides of the
    chuck and each accommodates one carriage for turning operations.  Bed and carriage
    slideways areprovided with fully hardened steel strips and pre-loaded rollers.  ... "
                                                                                      -from mfr's technical design description

    With excellent access from both sides of workpieces, the heavily-built, yet
    compact opposed auto tool-changer turrets, enable this lathe to quickly generate all
    turned pieces within its range in HALF the time of all ordinary turning centers.  Even
    more savings, in both precision and in total machining time,- are realized compared with
    doing this kind of work on VTL's or Boring Mills.  Up to four work area TV cameras
    and  monitors viewing the work area help the operator monitor all machining
    functions in machining operations.

    This lathe was part of a P & W plant closure in Connecticut, USA.  It had hardly been
    used at all and was well maintained.  We've had it thoroughly inpsected, prior to full
    re-configuring to the special needs of one of the world's top aerospace manufacturers,
    and by one of U.K's top machine tool rebuilders.   They are extremely happy with the
    condition of our machine; their visting agents pronounced it in "superb condition" and
    are now ready to fully rework this fine machine with any controls and modifications
    required,  while maintaining or exceeding the original performance,-  to your most
    exacting requirements.

    PRICE, to be arranged, with chip conveyor, existing or new controls, all manuals,     
   complete, delivered to your factory in Europe or N. America .  .  .  .  .  .  £$DM¥
 

Machineco attempts to provide correct information, but technical specifications are subject to error or oversight, and may be approximate or incorrect. Machineco makes no warranty as to the condition nor the fitness for any particular purpose of the equipment herein above specified. Therefore any purchaser shall be entirely responsible to inspect the said equipment to his satisfaction before any purchase thereof.