At the Fakuma trade show held this week in Friedrichshafen, Germany, size reduction equipment specialist Rapid (Bredaryd, Sweden) officially launched its LBB 300 series, a granulator with a very low height for handling sheet and film scrap. A prototype of the LBB 300 series was first displayed at K 2013 in Düsseldorf two years ago, but its official commercial debut was not until this week in Friedrichshafen. It is available worldwide.
The new unit (LBB stands for Low Built Base) is intended principally for use in-line with a thermoforming unit, where its very low height allows it to be located directly under the output conveyor, saving valuable floor space.
According to Bengt Rimark, Sales and Marketing Director at Rapid, this latest addition to the Rapid range of granulator solutions offers real value. “The new LBB 300 series represents what we are all about at Rapid—innovative, flexible and highly-efficient space and cost beneficial granulator systems that meet our customers’ needs,” he said.
The LBB 300 series is just 600 mm high (excluding feeder) and it is available in three widths: 900, 1,200 and 1,500 mm. The unit can be equipped with a rollfeed unit synchronized to the thermoforming line speed, or with a simple tray that collects skeletal frames as they fall from the line.
The modular granulator can also be configured to fit directly under a shredder to provide final size reduction, without the need for the conveyor belt used in common practice for connecting the two units. Rapid offers the LBB granulator in versions with various types of rotors and hoppers, depending on the application.
The compact design of the LBB 300 series means that it takes up very little extra space on the production floor. Depending on model, width is between 2,000 and 2,300 mm, and depth is 700 mm. It is designed to handle film and sheet up to 8 mm thickness, depending on material.
The LBB 300 series uses a true scissors cutting action to provide clean and precise cutting of sheet and film, and high quality regrind. The rotor on all models is 300 mm in diameter, fitted with six, eight or ten blades depending on model size. The two smaller units have six fixed knives, while the largest has nine. Units can be fitted with motors rated at between 7.5 and 30 kW. Maximum throughput capacities range from 800 to 1200 kg/h. Output can be transported via a vacuum conveyor straight back to the production line for reprocessing.
All units are fitted with a rotor stand-still guard for operator safety. The two larger units both feature split screens and split screen boxes for extra ease of service and maintenance. The equipment is mounted on a solid stand with castors for ease of movement when required. Basic units weigh between 1,200 and 1,500 kg, depending on size.