MATERIALS | MEDICAL TUBING
including medical tubing – to protect it and simplify handling. The system handles coils up to 24in (61cm) in
Above: Conair’s coil-strapping system is offered with new ATC tube coilers, or can be retrofitted
A high-speed, rotating blade cuts tube with high
accuracy and precision. Depending on the tube produced and its use, desired cut lengths vary from very short sections (such as 20mm) to longer ones (such as 4000mm). At the same time, a straight- through feature allows the cutting head to be disengaged when a coiler/reeler is positioned downstream. The knife blades are easily accessible for
replacement or maintenance. Control functions are centralised on the front panel for easy reach. Downstream options include: integration with a reception bin for short lengths; a conveying belt, which comes in either a 2m or 4m cut length version; and a coiler/reeler for nearly limitless lengths. Features include: maximum tube diameters of 14mm; maximum line speed of 300 m/min, and cut frequency of 2000/min. It also has a cut length accuracy down to ±0.5mm. The company has also developed the CMB 32, which is designed to cut medical or automotive tubes with high speed, accuracy and precision. The modern drive system allows a wide speed
range. Both low and high torque versions are available, depending on the diameters of tube produced. Options include a reception table as well as a straight-through feature when coiling is preferred over cutting.
It can handle maximum tube diameters of 12 or 32mm – according to torque version – and cuts a minimum tube length of 60mm. Cut length accuracy is 1%, with Maillefer haul-off.
Coil strapping Conair says that a new coil strapping system for its ATC series of tube coilers automatically straps finished coils of small-diameter extruded tubing –
22 PIPE & PROFILE EXTRUSION | May 2021
diameter, and prevents both tube damage and unravelling. This makes the coils easier to grasp, handle and move, says Conair. It uses roll-fed PP and PET strapping and is FDA compliant for medical-tube applications. The optional system comes in two pieces. The first is a separate steel stand that holds two large strapping rolls, which is positioned about three feet (1m) from the end of the ATC coiler. The second piece is the automatic strapping head unit, which is mounted on a steel base that attaches directly to the base of the ATC coiler on the coil-outlet side. This comprises a strap guide roller, alignment arm and combination strap cutter/welder head that affixes, cuts, and welds the strap material onto the coil. The strapping system control integrates directly
with the ATC coiler control via a secure Ethernet communications connection. The strapping system is fed by two 12,700ft rolls
of PE or PET strapping material, each containing enough material to wrap up to 4,400 coils with one strap or 1,100 coils with four straps. If strapping material runs out, the coiler’s automatic in-line accumulator ensures that tubing production continues while new strapping rolls are loaded. No line shutdown is required. The system is available as a factory option for
new ATC coilers or as a retrofit for existing units. Conair introduced the dual-spindle automatic cut-and-transfer ATC series coiler in 2013 to provide tensionless, high-speed winding of small-diameter flexible tubing in sizes from 0.040in (1mm) to 0.5in (12.7mm) on coils up to 24in (61cm) in diameter. Conair is planning extra features – including
automatic unloading, conveying and wrapping of strapped coils – for future release.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.ami.international �
www.spectrumplastics.com �
www.pse.umass.edu �
www.ubc.ca �
www.polyneers.de �
www.solvay.com �
www.zeusinc.com �
www.teel.com �
www.davis-standard.com �
www.maillefer.net �
www.conairgroup.com �
www.melitek.com
www.pipeandprofile.com
IMAGE: CONAIR
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