drag finishing units – df Series

Custom-designed workpiece holders make a significant contribution to the perfect processing results obtained by the DF series. They also ensure that the workpieces are mounted as quickly and efficiently as possible and considerably simplify batch processing. In recent years, OTEC has designed over 100 different types of holder. Furthermore, the process container features a water cooling system which keeps the polishing granulate at a constantly low temperature. This considerably extends the life of the process medium and ensures constant process quality, even at consistently high processing speeds.

Absolute reliability

Consistent use of only the best materials and components ensures trouble-free operation and long service life.

Maximum cost-effectiveness

comparatively low capital investment coupled with the potential for very high cost savings in terms of processing times make the DF series an extremely cost-effective solution.

Perfect finishing results

Deburring, grinding or high-lustre finish in a quality otherwise only obtained through hand polishing.

Short processing times

In many cases, perfect surfaces can be obtained in just a few minutes.

VIDEO

Otec Video

OTEC DF-5 Tools - Werkzeuge verrunden, glätten und polieren

Otec Video

OTEC DF-5 - Kniegelenke entgraten, glätten und polieren

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  • Tool mounts

  • Plunger

  • Tool mounts

  • Tool mounts

  • Milling cutter

  • Milling cutter

  • Perfect surface of knee implants

  • tap drills

  • Thread formers

DF-3/4 HD Series

Drag finishing machine for mass finishing and polishing of knee and hip joints, burr shafts, watch cases, dies, pistons and decorative workpieces.

Standard equipment

  • Process container with a capacity of 88 l
  • High-quality, sealed cladding in steel, exterior of panels and base painted
  • Flow-optimized process container
  • Vertical spindle with ball screw drive
  • Vertical workpiece position display and pre-selection
  • Storage capacity for 200 process configurations
  • Greater clearance between container rim and holder makes it easier to fit workpieces to holders
  • 3 or 4 clamping devices for the workpieces holders S
  • Stronger bearings for holding weights of up to 15 kg
  • Process data can be backed up onto external MMC card
  • Additional drive unit for independent holder rotation and higher speeds
  • Automatic door for fast changeover of workpieces 

DF-5/6 HD Series

Drag finishing machine for workpieces.

standard equipment

  • Process container with a capacity of 114 l
  • High-quality, sealed cladding in steel, exterior of panels and base painted
  • Flow-optimized process container
  • Vertical spindle with ball screw drive
  • Vertical workpiece position display and pre-selection
  • Storage capacity for 200 process configurations
  • Greater clearance between container rim and holder makes it easier to fit workpieces to holders
  • 5 or 6 clamping devices for the workpieces holders
  • Stronger bearings for holding weights of up to 15 kg
  • Process data can be backed up onto external MMC card
  • Additional drive unit for independent holder rotation and higher speeds
  • Automatic door for fast changeover of workpieces

DF-5/330 wet Series

Drag finishing machine for large and heavy workpieces. With its space-saving receptive workpiece holders and greater power, the DF-5/330 wet is one of our largest and most powerful DF machines..

standard equipment

  • Process container with a capacity of 250 l
  • For holder diameters of up to 330 mm and holder weights of up to 20 kg
  • Maximum workpiece length 280 mm
  • Sturdy, welded steel chassis
  • High-quality, sealed cladding in steel
  • Flow-optimized process container
  • Vertical workpiece position display and pre-selection
  • Storage capacity for 200 process configurations
  • Greater clearance between container rim and holder makes it easier to fit workpieces to holders
  • 5 clamping devices for the workpieces holders
  • Process data can be backed up onto external MMC card
  • Additional drive unit for independent holder rotation and higher speeds

Holder

Independently driven tool holders

With this type of holder specially developed for finishing tools, each workpiece rotates indivually on its own axis in addition to the general rotation. This produces a uniform surface finsh in even shorter processing times. It also achieves excellent smoothing of the flutes of cutting tools.

Angled holder

especially suitable for finishing end faces and forging dies

Quick tool changer

This system enables tools such as drills and burs to be changed in seconds by means of a lever. More information here.


Trolley

Trolley for DF Tools

Trolley with castors for quick container change


Miscellaneous

Immersion depth control

For controlling the depth to which the workpieces are immersed in the granualte. Two photoelectric barriers are used to identify the tip of the workpieces when they are immersed in the medium. From this, the control system then calculates the maximum possible immersion depth. The immersion depth of the workpieces in the process container is displayed for any defined level of medium. The immersion depth of the workpieces  can be preselected for best results.

Changing tray for attachments

Storage and changing tray for attachments (available in various sizes). Makes it easier to fit chucks and workpieces.

Hood

Hood for connecting an extraction unit

Water cooling

to reduce the temperature of the granulate

Tests not promises

Let us prove how good our technology is. We will be happy to put the performance of OTEC technology and the DF series to the test. We will give you detailed advice and develop a finishing concept tailored to your needs and formulate the best grinding and polishing media for your application. In addition, we offer to finish a sample workpiece for you individually and to provide you with a process log documenting all key process parameters.

Download

Flyer as PDF file for downloading to your computer. To open the file, you need the Adobe Reader.

brochure

Serie DF (english - 6.5 MB)

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