Around the Company: How our Haver Roto-Packer is operated
Production Manager Allan Harding describes our HAVER-ROTOSEAL Packer
ScotAsh was the first company in the UK to have a Rotoseal Type 4 packing machine. Supplied by Haver and Boecker of Germany, who are renowned in the packing equipment field, the machine offers the most up to date technology available for filling self sealing valve sacks. It does so via four spouts, with highly accurate self weighing and sealing of the filled sacks.
The Haver Roto-Packer is a rotary valve packing machine, designed for the loading of free flowing bulk goods into valve bags. It incorporates technologies which offer capabilities including self-weighing of the filled sacks, automatic continuous monitoring and adjustments of the weights to the set parameters.
The material to be packed is put into the bag by means of a filling turbine in coarse and trickle feed. Simultaneous filling and weighing guarantees a very high performance.
Filling begins with a coarse feed. At the end of the coarse feed the filler cross section is reduced to the trickle feed setting. The bag weight is achieved at the end of the trickle feed.
Each of the four spouts has its own associated valve closing mechanism, which is situated on the rotating part of the machine. At the end of the filling cycle the filled bag tilts forward to meet the Sonotrode ultrasonic sealing device.
The sealed bag is then palletised giving the required weight, one or 1.5 tonne, and stretch-hooded for weather protection of the final product.
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