Screw Packer BSP25

The new SSB screw packer model BSP25 is a compact machine for filling valve bags (optionally also open bags) with powdery, heavy-flowing or fine ground bulk materials. The machine consists of a stable basic frame, a gross weighing system with screw dosing unit, an integrated agitator and a dust extraction system.The machine can be adjusted to different bag sizes.


  • compact design
  • low height
  • transportable design
  • suitable for heavy-flowing products
  • integrated agitator
  • clean filling
  • replaceable filling nozzles
  • greatest accuracy
  • no power shunts
  • Power up to 80 bags/hour at 25kg


The Screw packer BSP 25 consists of a stable base frame with removable side panels for easy access to the drive and bearing units. Due to its compact design and a low product infeed height of approx. 1500mm, the machine is suitable for almost all requirements.

The BSP25 weighing frame, which is supported at 4 points, consists of :

  • Filling spout outer tube
  • Bag clamp
  • Suction hood
  • height-adjustable bag chair
  • Precision load cell (approved for legal metrology)

in addition, the machine is equipped with a transport safety device to move the scale with a lifting scale or forklift truck.

Dosing system

The dosing system consists of a driven dosing screw which conveys the product in the dosing tube into the bag. The dosing screw is not connected to the weighing frame. A filler tube is mounted on the weighing frame around the dosing tube. This ensures the best possible coupling between the metering tube and the weighing frame. The spaces between the pipes are connected to the dust extraction system.

In the integrated inlet area of the machine, above the screw, there is an agitator with a separate drive which can be operated individually. Heavy flowing products are loosened with the agitator in order to feed it evenly into the dosing screw. The agitator paddles can be either screwed or welded.

Control with weighing electronics

The machine is equipped with a compact control cabinet for controlling the individual components and the corresponding options and with an operating terminal with touch panel and display of all functions in plain text.

  • Weighing electronics in calibratable and recessed design for controlling the dosing
  • Storage of the product-specific parameters in the variety memory
  • Simatic SPS control
  • Optional use of customer signals
  • Optional remote maintenance


Packaging: Valve bags
Capacity: 80-100 bags/hour depending on product characteristics and the skill of the operator


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