STRETCH WRAP
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rusionCAST FILM LINES STRETCH WRAP

CAST FILM LINES CAST FILM LINES LINES FOR STRETCH WRAP INTRODUCTION The cast film process is the most efficient method of producing top quality stretch wrap film in the high output range. Innovative detail engineering and the development of new core components for cast stretch film lines such as high-speed extruders and new types of winders help our customers to position themselves successfully in the highly competitive stretch film market. SML offers attractive standard solutions in widths from 3 - 12up (1,500mm to 6,000mm), as well as customized lines based on these concepts. Features...

CAST FILM LINES CAST FILM LINES MiniCast®STRETCH FILM EXTRUSION LINE TECHNICAL DATA: On a minimum floor area of less than 100sqm, the MiniCast® stretch film line can be equipped with up to four extruders, which facilitate a combined extrusion throughput of 1,050 kg/h. The machine incorporates a single roll casting station with a chill roll diameter of 1,200mm and an optical thickness measuring system for translucent films, or an X-ray version for opaque films. Customers can select between edge trim re-feeding via a scraptruder for fluff, or a repelletising system. With a single turret...

CAST FILM LINES CAST FILM LINES EcoCompact®STRETCH FILM EXTRUSION LINE The EcoCompact® line is a standard model in SML's portfolio for efficient stretch film production in 2m-width (4-up) with extruder outputs of up to 1,600 kg/h and a small footprint of only 140sqm, including a recycling system. For many customers, the EcoCompact® line represents the ticket to top quality stretch film production, while for others, as compared to their larger production lines, it is simply the most flexible line with regard to product changes. As a rule, SML delivers the EcoCompact® in a three- or a...

CAST FILM LINES CAST FILM LINES TECHNICAL DATA: SmartCast® STRETCH FILM EXTRUSION LINE Apart from a new generation of standard and high-speed extruders, SML has also upgraded the chill roll unit by adding additional functions, avoiding vibrations and making operation easier. Depending on product requirements, the SmartCast® line can be equipped with all three of SML's stretch film winders to achieve the best and most cost-effective solution. CHILL ROLL UNIT: ■ Primary chill roll 0 1,200mm, width 3,800mm ■ Secondary chill roll 0 400mm, width 3,800mm ■ Automatic positioning ■ IR thickness...

CAST FILM LINES CAST FILM LINES 13 PowerCast STRETCH FILM EXTRUSION LINE TECHNICAL DATA: Apart from a new generation of standard and high-speed extruders, SML has also upgraded the chill roll unit by using a 1,600mm C1 roll, avoiding vibrations and making operation easier. The new version of the winder W4000-4S allows a quick changeover when different roll width is needed. It is easy to produce 400/450/500mm without using a deckling or a winder edge drim. CHILL ROLL UNIT: ■ Primary chill roll 0 1,600mm, width 5,000mm ■ Secondary chill roll 0 400mm, width 5,000mm ■ Automatic positioning ■ IR...

CAST FILM LINES CAST FILM LINES 15 The manufacture of machine rolls in large quantities with maximum efficiency requires production lines with exceptional output ranges. The MasterCast® line from SML is a globally unique system in a width of 6 meter (12-up) and with an installed extrusion capacity of up to 5,000 kg/h. and in combination with the fully automatic winder W4000 in a triple turret version, the MasterCast® sets new standards for the mass production of stretch wrap films. A production line on this scale offers an unbeatable ratio with regard to investment cost per kg of output,...

CAST FILM LINES CAST FILM LINES THE “SHAFTLESS“ WINDER W3000-4S Before entering the winder, the film is oscillated in an overhead SML has created three different winding sys- position by a frame, in order to ensure a perfect film roll surface. tems for the production of stretch wrap film. Both the oscillation distance and speed are adjustable. All of these have a solid, vibration-free steel frame construction, which is able to resist the The winder is the heart of a stretch film line and decisive in terms dynamic forces generated at high production of overall line performance....

CAST FILM LINES CAST FILM LINES THE “WORKHORSE” WINDER W4000-2S This is the primary selling stretch film winder and can be delivered in single-, double- and triple-turret versions with net film widths of 1,500 – 6,000mm. Simplicity, great width flexibility and top speeds for machine and jumbo rolls represent the key to high performance. The film passes a satellite roll and is then wound onto a 3-inch winding core via a driven contact roll. Each turret is equipped with only two winding shafts and offers sufficient cycle time for typical machine rolls. One extremely valuable benefit is the...

CAST FILM LINES CAST FILM LINES Minimum cycle time PRODUCTS Winding tension Core and roll handling manual * With centre support Pallet stretch wrap film represents the biggest stake of the cast film market. And while some regions have already evened out their supply shortfall other regions still depend heavily on imports to cater their demand. Moreover, what makes stretch film especially interesting for the industry is the fact that it has the lowest unit wrap weight of all the film palletizing solutions and therefore is also the most cost-efficient. In response to the varied requirements...

CAST FILM LINES CAST FILM LINES RAW MATERIAL HANDLING AND DOSING EXTRUSION EQUIPMENT FEEDBLOCK AND FLAT DIE WITH ENCAPSULATION CHILL ROLL UNIT TRIM HANDLING SYSTEM WINDING SYSTEM SMILE CONTROL SYSTEM

CAST FILM LINES CAST FILM LINES multilayer extrusion unit RAW MATERIAL HANDLING AND DOSING In view of the fact that raw material account for roughly 80 per cent of the overall stretch film production costs, it is essential to ensure their efficient use in every film layer. A wide range of gravimetric batch blenders and continuous gravimetric feeders with up to six components per extruder enable recipes to be run with great accuracy and repeatability. extrusion tool unit Moreover, the complete dosing system, as well as all the material supply vacuum pumps, filters and valves are fully...