Film shrink wrappers with in-line infeed

CSK ERGON Series

CSK 40 ERGON - Film shrink wrappers up to 40 ppm

The CSK ERGON series is composed of automatic shrink-wrapping machines for packing plastic, metal, cardboard or glass containers. Depending on the model chosen, they can make packs in film only, cardboard pad + film, tray only, cardboard tray + film.

The CSK ERGON series packers can achieve an output of max. 50 packs per minute in single lane (50+50 in double lane), depending on the machine model and on the product to be packaged. The pack collations can vary according to the container's shape and size. In general, the most frequently requested collations are: 2x2, 3x2, 4x3 and 6x4.

All CSK ERGON models are equipped with an electronic product-grouping device and with film-cutting blade and flap-folding device actuated by direct drive brushless motors.

CSK 40 FCSK 40 PCSK 40 T
Speed (PPM)404040
Packaging TypeShrink filmPad + FilmTray + film
Tray only
Lanes111

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1In the machine infeed zone, a group of guides accurately lines up the loose containers carried by a conveyor belt featuring low-friction chains made of thermoplastic material. In the pack formation zone, the containers are clustered in the required format through electronically synchronized combs and dividing bars, operating in continuous motion.


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2In P and T models, a corrugated cardboard pad or blank is picked from the blanks magazine by a rotary picker composed of two groups of vacuum suckers. The pad or the blank moves along the blank climb and places itself underneath the group of products in transit with the long side leading.


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3In the tray former, special mechanical devices fold the blank’s front and rear flaps. The side flaps are sprayed with hot melt glue and then folded, thus forming the tray.


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4The unwinding of the film reels, placed in the lower part of the machine, is controlled by a dedicated device ensuring the film precise and constant tensioning. Before the pack enters the shrinking tunnel, the film is wrapped around the container batch and overlapped at the base of the pack.


  • Machine bearing frame made of sand-blasted and powder-painted steel
  • Sliding protection doors in anodised aluminium featuring a rounded shape which let all the motors (featuring low energy consumption) be placed externally if compared to the mechanical groups they activate. The closing system of doors is equipped with a slow-down device, which accompanies the door smoothly in its final phase of closure
  • Absence of gearboxes and prevailing employment of ICOS brushless motors equipped with digital servo-driver integrated into the motor
  • Continuous motion product grouping device, with electronically synchronized fingers made of plastic material
  • For life lubricated bearings
  • Infeed conveyor with chains made of thermoplastic material featuring low friction coefficient and a motorized system of oscillating laning guides
  • Cardboard magazine situated beneath the infeed conveyor in an easily accessible position (P and T models)
  • Alternate motion cardboard blank picker, equipped with suckers
  • Before the pack enters the shrinking tunnel, the film is cut by a knife equipped with motorized blade and then wrapped around the group of containers and overlapped on the bottom of the pack. The adjustment of the film length is electronic
  • Compact knife group with film cutting blade driven by a direct drive brushless motorization
  • The shrink tunnel features state-of-the-art technical solutions that enables the energy consumption reduction and the maximum environmental compatibility of the processes. Thanks to the precise analysis of thermodynamic phenomena generated by the shrink process, the tunnel distributes hot air flows in an efficient and homogeneous way on the pack, thus ensuring the excellent quality of the final pack. Shrink resistances are positioned on the side walls of the tunnel.
  • Interactive 15'' touchscreen display and operator panel mounted on an arm sliding on a rail

Modular design

SMI machines are designed according to advanced principles of module assembly and feature interchangeable mechanical and electronic components, which ensure a reduction of the down-times during technical interventions or programmed maintenance and the optimization of the use of spare parts on stock.

Operational flexibility

These machines can package a wide range of products in several pack collations, so as to effectively meet the end user's current and future requirements. Moreover, each machine can be equipped with additional devices, which increase its basic functions and ensure a high level of customization of the final package.

Motors directly connected to the drive shafts

SMI machines do not include gearboxes: the motors are directly connected to the drive shafts. The consequent advantage is the reduction of maintenance, energy consumption and noise.

Continuous motion pack formation

The continuous motion packaging system ensures a fluid production process and protects the containers from strikes, thus granting more reliability, a better quality of the pack and a reduction of mechanical wear.

Thermoplastic material dividing pins

In the pack formation zone, the use of dividing pins made of thermoplastic material, that last longer than those made of metal, reduces the machine noise and protects the fragile containers (such as glass containers) and their labels.

Easy and cost-saving maintenance

The rounded safety doors enable to have more space inside the machine and thus to install motors externally compared to the mechanical units they drive, which allows the operator to easily perform the activities connected to the plant maintenance.

Precise and automatic film cut

Film-cutting unit equipped with direct drive motorization that allows to easily carry out motor maintenance and reduce maintenance operations.

User-friendly man-machine interface

The POSYC® control panel, fixed or sliding on a boom running the whole length of the machine (depending on the machine model), enables even less expert operators to easily and effectively run the packer, thanks to an intuitive interface, a touch screen display and diagnosis functions and real-time technical support available on the POSYC®.

Data provided are not binding, as they have to be confirmed by SMI according to the machine user's production conditions and technical specifications.