TRKC planetary saws were designed by Sika (Alfonsine, Italy) specifically for extrusion-line cutting without removing material from HDPE and PP-R pipes, regardless of thickness. The machines are equipped with a first cutting arm with a circular idle blade and a second arm, or clamp, to support the pipe during the cutting process.
The idle blade reduces friction and overheating of the material compared with a conventional knife or fixed tool. The counter-rollers, which are in constant contact with the surface of the pipe, prevent bending and improve precision, according to the company.
Sika noted in its press release that complex tubing materials, such as PVDF, PP-R and fiberglass, are increasingly used in the medical and telecommunications sectors. Conventional cutting systems are inadequate for these applications and often require new technological approaches, such as proportional valves that may be difficult to manage, control and maintain. “There is a need to create new-generation saws that can be versatile and high performance, as well as simple and more reliable in terms of process repeatability and control,” said the company.
Sika’s new TRKC 160E cuts pipe and tubing in diameters up to 160 mm without generating chips or dust. Everything is managed automatically by defining a few essential parameters on the operating panel, such as the type of extruded material and the diameter and thickness of the pipe. Each movement is electric, therefore silent, precise and repeatable.
In the event of power disruption, Sica has created a patent pending electro-elastic hybrid system that allows cutting tools to be secured, disengaging them from any pipe in transit.