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Integrated stretch palletizer for nonwoven products
Nonwoven products are lightweight, compressible and – consequently – sensitive. In addition, their dimensions vary within certain tolerances. The unfavorable results of traditional palletizing methods are unstable stacks. In sum, we already have four good reasons to switch to a palletizer specifically designed for nonwovens.
The robot of the OPTIMA RTP 25 has a motor-driven gripper equipped with angled edges at the bottom. This increases gripping security and operating speed. The angled edges allow significant reduction of the gripping force, so that the sensitive nonwoven products can retain its shape. Simultaneously, the device allows the use of a faster robot type. Especially for lightweight disposable hygiene products, Optima Group Nonwovens’ RTP25 model’s vertically moving frame is particularly suitable, as it firmly holds the compact and stable stack formations in place.
All movements are defined in the human machine interface. All product sizes, product types and positioning patterns per layer, wrapping methods and other specific procedures are defined and stored in the HMI, and any input can be performed during operation. However, there are no limits to layer and stacking patterns. And finally, the simple operation greatly reduces the risk of downtime and product damage as a result of incorrect programming.
The pre-stretched film used for securing the stack is wrapped by a system that continuously measures applied forces and controlling them according to the relevant setting. This is a highly protective approach for the lightweight nonwoven products, because the stack is wrapped without being moved on the pallet and it is kept firmly in place. Optima Group Nonwoven’s method of simultaneously stacking and wrapping is unique in the market.
The user has many options: Wrapping intervals, the specific number of turns per layer, at the bottom and the top are optional. The operative tension of the film can be adjusted to the products to be transported and settings are saved in the machine control. Additional modules such as inserters for tier sheets, top sheets, an empty pallet magazine for automatic feeding and a link to subsequent storage logistics are available.
Technical Data Overview
Product Dimensions
Length: 150 – 800 mm
Width: 150 – 650 mm
Height: 150 – 400 mm
Max. weight: 10 kg
Stretcher
Material: PE stretch foil
Stretch: Max. 250%, to be preselected
Roll width: 500 mm
Roll diameter: 300 mm
Palletizer
Pallet type: Euro 800 x 1.200 mm
Industrial (Chep) 1,000 x 1,200 mm
Stack height: Max. 2.200 mm incl. pallet
Stack weight: Max. 500 kg without pallet
Layers per pallet: Max. 12
Products per layer: 4 – 32
Product input: Max. 25 products/min.
Pallet magazine: 10 empty pallets
Discharge for one filled pallet
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