data sheet (PDF)

Vertical auger dosing unit SD-550

for the dosage of powders and granules from 0,5 ml up to 1000 ml



  • Pharmaceutical industry
  • Cosmetics industry
  • Food industry
  • Chemicals industry


from 0,5 ml - approx. 1000 ml
ze.g. pharmaceutical products, salt, sugar, spices, soups powder, milkpowder,
cappuccino, instant coffee, coffee creamer, baker’s yeast, detergents,
spot removal salt, seed, ...


The auger dosing unit type SD-550 is a vertically operating dosing auger for the dosage of powders and granules (also poor-flowing ones and dust developing products, too).

The exchangeable dosing auger conveys the product through the auger tube, usually directly into a prefabricated bag.

All product-contact parts are made of stainless steel and they constitute materials which are FDA approved.

The number of auger revolutions is adjustable up to 3000 1/min

The dosing unit is driven by means of a servo motor, whose drive shaft is directly connected by its elongation with the dosing auger.

The stirrer is driven by means of a separate three-phase motor.

The dosing quantity results from: “flight volume” multiplied by the number of auger rotations per dosing operation.

The auger rotations are freely adjustable.

The dosing unit is equipped with a “horizontal infeed auger”, which conveys the product from a product supply or from a storage container into the dosing hopper and which, therefore, decouples the filling of product fluctuations in the storage area. By means of a product level controller, the filling level in the dosing hopper is kept constant. The refill rhythm is adjustable.



  • Constructed in the building block system
  • Compact, robust, long-life construction
  • For screws from Ø8 up to max. Ø30 mm
  • All parts in contact with the product are made of stainless steel - or another approved material
  • Infinitely variable servo-drive of auger
  • Separate stirrer drive right-hand or, respectively, left-hand rotation switchable
  • Quick format change
  • Easy to operate
  • Low-maintenance
  • Quick and easy cleaning
  • The machine meets the current CE - guidelines



Dosing ranges: from 0,5ml up to1000ml
Output: up to 120 doses/min
Wattage: approx. 0,37 KW
Voltage supply standard: 400V/3/PE/50Hz
Protection class: IP54
Weight: approx. 45 kg
Colour standard: Stainless steal- ALU



  • Tendentious control in combination with a weighing machine
  • Ventilation and gas flushing of product
  • Special sets of dosing augers
  • Different systems to close the auger tube, e.g. end cut-off disc for free-flowing products



Merz Verpackungsmaschinen · Bahnhofstraße 25 · 35423 Lich · Germany
Phone: 0049-6404-9172-0 · E-mail:

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