CUSTOMER REQUIREMENTS
Packaging into Doypack bags
Use mono-PE material (LDPE/LDPE)
Speed 60 bags/min of 400 g
Machine prepared for:
- in-line zip
- further rebuilding to "A" pillow bags made from laminates or PE with/without cross-zip
- rebuilding to 3-side sealed bags with same jaws
Operating parameters
| SAT | 1 | 2 | 3 |
| PACKED PRODUCT | Frozen raspberry | Fruit mix (strawberry, blackberry, black currant, raspberry) | Blueberry |
| PRODUCT TEMPERATURE | - 22 °C | ||
| DOSE | 350 g | 1 000 g | 400 g |
| BAG TYPE | "J" Doypack | ||
| PACKING MATERIAL | (LDPE/LDPE) multilayer PE | ||
| PERFORMANCE | 55 bags/min | 43 bags/min | 55 bags/min |
Delivered solution
VERSATILE-360-B-Conti machine with metal cover for standard wire chute
To partly eliminate air from the bag, the springs under the cross jaws were used
For better product alignment in Doypack bags, pneumatic vibrator was installed over the cross jaws – it shakes the foil over the product after pouring, preventing it from getting into the cross seal
Machine equipped with in-line zip cut-out, 14 mm in-line zip guides and zip unwinding
Changeover from Doypack to pillow bag takes approx. 1 hour
ADVANTAGES OVER HORIZONTAL MACHINES:
Universality/versatility of vertical machines (multiple bag types on one packaging machine)
Space-efficient in the production hall
Short format changeover time
Minimal foil waste during format setup
LEADING PRICE/PERFORMANCE RATIO
The quality of Doypack bags produced on vertical machines is comparable to bags on horizontal machines. The result is good-looking doypack bags with no reduction in quality.
VELTEKO machines are cost-effective, featuring a compact design that maximizes flexibility in limited space and delivers high-performance packaging at a significant speed per square meter.
GET A PERFECT BAGS FROM LDPE/LDPE FOIL
The outer laminate layer must be weldable to get a well-standing Doypack bag. In this project the foil producer added special glue or paint to achieve the result.
Motorised foil unwinding (VT+) helps to control the foil unwinding (mono foil tends to stretch).
ADDITIONAL INFORMATION
Machine:
- prepared for conversion to cross-zip
- could be easily rebuild to 3-side sealed bags with/without inline zip
- operates at 0+ degrees, requiring the customer to use a dryer to preheat the foil
