Film shrinkwrappers

CSK ERGON Series

CSK 42 ERGON - Film shrinkwrappers up to 40+40 ppm

The new ERGON range of automatic packers is based on design choices inspired by key concepts such as ergonomics, technology, sturdiness and modularity, masterfully blended to mark a new, significant evolution in the history of SMI products.

You can point out the new ERGON packers rather quickly due to the rounded profile of the movable safety guards, which allow to house all the motors on the outside with respect to the mechanical units they run, facilitating line operator access when performing maintenance.

The new heat-shrinking tunnels of the ERGON range boast cutting-edge technical solutions that allow reducing energy consumption and ensure the utmost environmental compatibility of the processes as well as the improvement of the final quality of the packaged pack.

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 ERGONCSK 50 ERGONCSK 42 ERGONCSK 52 ERGON
Speed (PPM)405080100
Lanes1122

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1In the machine infeed zone, an oscillating unscrambler accurately lines up the loose containers carried by a conveyour belt featuring low-friction chains made of thermoplastic material


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2In the pack formation zone, the containers are clustered continuously in the required format by electronically synchronized separation pins and bars


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3The unwinding of the film reel, placed in the lower part of the machine, is controlled by a progressive brake, which ensures the film constant tension.


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4Before 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
  • Standardized modules assembly
  • The machine is equipped with 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
  • Continuous motion product grouping device, with electronically synchronized fingers made of plastic material
  • For life lubricated pads
  • Infeed conveyor with chains made of thermoplastic material featuring low friction coefficient and a motorized system of oscillanting laning guides
  • Cardboard magazine situated beneath the infeed conveyour, adjustable according to the blank size
  • Alternate motion cardboard blank picker, equipped with suckers
  • Before the pack enters the shrinking tunnel, the film is cut by a knife equipped with motorised 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 motorisation
  • The shrink tunnel features state-of-the-art technical solutions reducing energy consumption and ensuring an eco-friendly working process. The tunnel conveyor belt is made up of fibreglass bars, driven by side chains (®SMI). 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 its excellent quality at the end of the process. Shrink resistances are positioned on the side walls of the tunnel; the lubrication system is automatic and centralized (optional for SK 400 models).
  • Tunnel conveyour belt equipped with fibreglass bars
  • Heat-shrinking tunnel with forced air ventilation

Modular structure

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

SMI 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 strokes, 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, which 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 low-cost maintenance

The rounded protection doors of ERGON models allow broader space inside the machine and thus the motors can be mounted externally on the machine side edges. Therefore, they are easily accessible and reachable for maintenance. Actually, the operator doesn't need to enter the internal parts of the shrinkwrapper when carrying out manual interventions.

Constant film tensioning

Film reels placed in the lower part of the machine with film unwinding controlled by a progressive brake and constant film tensioning ensured by a system provided with a tensioning spring

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, sliding on a boom running the whole length the machine (fixed on LSK ERGON models), enables even less expert operators to easily and effectively run the packaging machine, thanks to an intuitive interface, a touch screen display and diagnosis functions and real-time technical support available on the POSYC®.

* The stated values are not binding, as they have to be confirmed by SMI according to the user's production conditions.

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