Model GTP/VL and GTE/VL valve bag filling machines are equipped with a gravity bag filling system. This system is ideal for products granular or pelletized in nature, with free flowing characteristics, and when only moderate production is required as bagging speed is limited to 150bags/hour.

Product flow is controlled by a pneumatically actuated gate. The product flow channel, filling spout, and bag rest form the filling assembly of the packer, which “floats” from the main structure of the machine. This entire system is connected to the weighing system of the machine. 
GTP/VL valve bag fillers are equipped with an electropneumatic weighing system, where as GTE/VL models are optioned with an electronic weighing system.

Electropnumatic weighing systems ( mod. GTP/VL ), also known as scale beam weigh systems, are comprised of a lever, fulcrumed at the center, with one end connected to the filling assembly. The other end of the lever is connected to removable weights amounting to the target bag weight. The lever is also equipped with a readily accessible, easily adjustable counterweight system. The counterweight is used to fine-tune the target weight in 10gram increments.

Electronic weighing systems ( mod. GTE/VL) feature a filling assembly that is supported by load cell sensors connected to sophisticated electronics, which in turn translate load signals into relative, accurate data. A weigh system interface with membrane keyboard and digital display, allows for visualization of bag weights and all parameters that may be input into the weigh control system. The primary advantage of electronic systems lies in their ability to constantly self monitor and automatically correct for any changes product properties.

Optional
GT/VL series valve bag fillers may optioned with the following features:

• TRANSFER automatic bag placing unit
• Pneumatic bag support height adjustment
• Motor driven, bag support vibrating system
• Movable version on castors
• Bag pre-inflation device