Stretch Film Making Machine

A stretch film making machine is used to produce stretch film, a highly stretchable plastic film commonly used to wrap pallets and secure loads for transportation and storage. The machine uses a process known as cast film extrusion or blown film extrusion to create thin, strong films with stretching properties.

Stretch film making machines typically operate through either cast film extrusion or blown film extrusion processes: Cast film extrusion: Involves melting plastic resin pellets and feeding the molten material through a flat die onto a chill roll. The film is then cooled rapidly to solidify, stretched mechanically in both machine and transverse directions, and wound into rolls. Blown film extrusion: Similar to blown film machines, but with modifications for stretch film production. The extruder melts plastic pellets and extrudes them through a circular die to form a tube of molten plastic. Air is introduced to inflate the tube, which is then stretched longitudinally and cooled before being wound onto rolls.

When selecting a stretch film making machine, consider these factors: Output capacity: Choose a machine that meets your production volume requirements. Film thickness and width: Ensure the machine can produce stretch film in the desired thickness and width suitable for your application. Stretching ratio: Evaluate the machine's capability to achieve the required stretch ratio for optimal load stabilization. Material compatibility: Verify that the machine is compatible with the type of resin (e.g., LLDPE, LDPE) you intend to use for stretch film production. Automation and control features: Consider the level of automation and control systems available to enhance production efficiency and film quality.