General Laboratory Equipment

Erweka 720 Dissolution Tester



ERWEKA DT 720 has been designed with the user in mind: instead of an extensive operation menu structure and multi-functional keys the DT 720 comes with individual displays for each test-run parameter (time, rpm, temperature).

UP/DOWN buttons for fast and easy test-run parameter setting are placed. For a better observation of the sample dissolving process the one-piece moulded water bath (with standard water outlet cock) is illuminated. The manual lifter column, with hydraulic support for effortless operation, allows raising and lowering of the drive head in just a few seconds.

Tablets/Pellets etc. are inserted through the sampling openings in the drive head via the standard tablet delivery system. Samples for analysis are withdrawn through special, membrane sealed sampling openings inside the drive head. Therefore, in Low-Head mode, the evaporation is limited to less than 0.3% within 24 hours at 37°C. The extensive use of carbon fibre allows to eliminate metal and therefore reduces the risk of corrosion to a minimum. The actual test-run parameters can be documented via a USB printer (optional).


DT 720, as standard, comes with the MagniShaft system which allows exchange of the full Teflon/PEEK stirring elements within seconds – without using any tool (magnetic coupling).


Each DT 720 optionally can be fitted with the UniShaft system for stirring steel or teflon coated stirring elements. At the UniShaft system, similar to the previous DT 600/700/800 generation one single stirring shaft is used to screw either Paddle (PEEK), Basket Holder or Rotating Cylinder. Due to the special design height adjustment is not required. The UniShaft system, in combination with two different stirring shaft lengths allows to operate DT 720/820 in either conventional High-Head- or low-evaporation Low-Head mode. Further UniShaft stirring methods can be inserted into the media individually and therefore are the perfect selection when staggered test-start is required.

  1. UniShaft system incl. 8 numbered stirring shafts for Low-Head use
  2. UniShaft system incl. 8 numbered stirring shafts for High-Head use
  3. UniShaft system incl. 8 numbered, certified stirring shafts for Low-Head use
  4. UniShaft system incl. 8 numbered, certified stirring shafts for High-Head use