COLLIN Polytest Line

Multi-Inspection

The COLLIN multi-inspection convinces by its wide range of application – the multi-purpose test device measures optically, mechanically and rheologically, depending on the customer requirement. The line has a modular design. It consists of a chill roll unit, which is followed by a roller conveyor for optical and mechanical film inspection including film winder and an upstream rheological measuring section as option.

• Quick melt and film inspection at the production line.
• Low space requirement due to compact design.
• The scrap quantity in the production process is reduced.
• Cost-efficient components.

Automated Pressure Filter Test

The automated pressure filter test is used for determining quality differences in a polymer caused by agglomerates, insufficiently dispersed fillers resp. contaminations also in the bypass directly at the production extruder. For this version, the screens are automatically changed. The melted thermoplastic polymer flows via a filter screen. Agglomerates, contaminations and other insufficiently dispersed resp.

• Little downtime and personnel costs compared with the manual screen change
• Quick quality test at the production line
• Connection to each extruder, production extruder or compounder, also in bypass mode
• Compact design
• Fully automated system
• No additional effort for laboratory analysis

Film Inspection FI

The COLLIN film inspection system is an extremely high-quality test line, which enables a definition of up to 10 error classes by means of 14 error criteria. The line detects optical errors in a running flat or blown film. Between cooling and take-off rolls, a LED light source as well as a line camera are installed. Thus, not dispersed defects in the film can be detected and evaluated.

• Use as stand-alone system or integrated in the extrusion process.
• Numerous adjustment possibilities of the error parameters.
• 24 hours operation is possible.
• Online result display of the running test.

Rheometer

Rheometers serve in determining the melt viscosity, thus they are an essential element of the permanent quality control during polymer processing. The Mono Online Rheometer MOR is used for measuring a viscosity curve on polymers. The viscosity is measured by using a melt flow which flows through a round capillary. The melt is either directly taken out of the extruder or as a side flow.

Online Viscometer

The online viscometer is used for continuous control of the melt viscosity of a production extruder. Two melt pumps with only one drive guarantee a permanent melt flow. The COLLIN Polytest Line measuring device is not only characterized by its compact design but also by flexibility and the closed material flow. Moreover, there is no waste production.

• Precise, user-friendly
• Cost-efficient, since there is only one drive motor for two pumps
• Clear, simple display of the viscosity value
• Low space requirement
• Connection to each extruder, compounder and production extruder is possible

Manual Pressure Filter Test

The manual COLLIN pressure filter test is used for determining quality differences in a polymer caused by agglomerates, insufficiently dispersed fillers resp. contaminations. A filter cassette in pre-heating position enables a quick and clean manual filter change without extruder stop. During the filter change, the melt is diverted via a bypass valve in front of the filter.

• Easy and safe handling
• Improved reproducibility by double-chamber hopper
• Little idle times during screen change by cassette system
• Filter change without extruder stop
• Saving of working time due to optionally available double-chamber hopper

Pressure Filter Test AFT MP-E

Autosampler Automated pressure filter test with autosampler The fully-automated Collin pressure filter test with autosampler enormously reduces the down times, the personnel costs and enables high reproducibility. With the unique, automated material and screen changing system, up to seven material samples are tested one after the other – without system stop.

Film Inspection COFICOS

The COFICOS line is suitable for tests under adverse conditions close to a production line. The flat film die is extended into a closed test room with light source and camera. Thus, no foreign particles appear on the test film. The flat film line is suitable for an optical film inspection for standard polymers with a max. film thickness of approx.100 µm.

Technical Centre & Test Laboratory

In order to support COLLIN customers optimally, in our technical centre, there are different lines and test devices for trials or trainings. Our experienced and competent team of engineers and plastics technicians has over 30 years of experience with COLLIN lines.