Construction and commissioning of a bridge crane
Our client:
Friedrich Bansmann OHG
The Friedrich Bansmann OHG is a hardwood sawmill with a long tradition and has been run as a family business for around 150 years.
The company specializes in cutting oak wood of good and very good quality. After sawing, the wood is stored and dried for about two years before it can be processed. Modern, computer-controlled high-performance drying chambers ensure gentle wood drying.
The technically dried sawn timber is then temporarily stored in air-conditioned halls until it is sold. The Bansmann sawmill and its sister company Holter Sägewerk have a total cutting capacity of approximately 25,000 m³ of round timber. The total storage area covers 70,000 m².
The task
The overhead crane dating from 1962, which transports the logs to the production line, needed to be replaced. The old crane runways were to continue to be used. It also had to be ensured that the crane would function properly even in adverse weather conditions and at temperatures below zero.
The service
Blumenbecker designed, built, delivered, assembled, and commissioned the crane. The old crane was dismantled and removed. The existing crane runways were overhauled.
While the old crane had a load capacity of only five tons, the new one can move 7.5 tons. It is taller than the old crane, but weighs less and therefore consumes less energy. A special feature: the crane rails are equipped with trace heating, which is controlled by a thermostat. The heating is switched on when temperatures fall below zero. This prevents the crane rails from icing up and allows the crane to be operated safely even in extreme weather conditions such as frost or snowfall.
Customer quote
“With the new crane, we have higher performance but consume less energy at the same time.”
Peter Fischer,
Geschäftsführer Friedrich Bansmann OHG
Technical details
| Crane type: | Double-girder bridge crane 7.5 t x 21.7 m, box girder construction with walkway (crane girder walkway) Crane travel, trolley travel, and hoist frequency-controlled |
| Crane travel: | max. 50 m/min |
| Trolley travel: | max. 32 m/min |
| Lifting/lowering: | at full load 8 m/min, in partial load range up to 12 m/min (ESR control) |
| Load handling device: | permanently attached polyp grab with slewing mechanism |
| Operation: | via radio control |
Special features: |
Trolley rails equipped with trace heating, which is activated via thermostat at temperatures below 0°C |