JOINTING /
POLYURETHANE PROCESSING
Ceramic clay pipe: Polyurethane mixing pistol (K jointing)

The combination and mixing dosage of various substances required to produce a perfect polyurethane seal (at both socket and spigot ends) of vitrified ceramic clay pipe is vital. This high tech pistol not only supplies the perfect mix, but also allows the pistol to be cleaned with a special detergent in between the working process.
Ceramic clay pipe: Clay pipe carousels for polyurethane processing (K jointing)

This Schoenbeck Clay pipe carousel for polyurethane processing is suitable for pipe of:

DN 200 up to DN 400.

The carousel can operate with 24 pipes stations and be delivered with forms/ casts, cranes and conveyors. The SPS programmed station guaranties the correct rotation speed for the processing of the polyurethane substance.

Seal and form casting for pipe sizes DN 200 - 400

The cast form is placed into the pipe socket end. Polyurethane foam is then injected into the form and sealed off by a capping plate. The foam then automatically expands and multiplies its original size and dosage.

Although slightly complex, this specialised technique reduces substantial costs when utilising the polyurethane substance. The seal for the spigot end of the pipe is filled into an open cast. Whereas the socket end is furnished with polyurethane "hardener" (compensating agent), the spigot pipe end is processed with a polyurethane "softer" (seal element). The processing of the polyurethane fluid containers at exactly 25° + 2°C , the exact dosage of the double component Polyol and Isicyanat as well as a complete and utter speed swirling of both substances prior to exiting the mixer, are absolutely necessary for a faultless a perfect production. To ensure that the "polyurethane foam" for pipe socket ends expands and multiples faster, the assistance of dosage compressed air is used at the mixer stage of the process. Prior to the pipes being transported into the "pipe carousel" for the polyurethane processing, they naturally need to be treated with a primer substance. The Schoenbeck Company has developed a processing system which allows the adhesive agent to be sprayed onto the pipe during transportation exactly were it is required, at exactly the amount required. This system is also online and in production.
Ceramic clay pipe: Clay pipe carousels for polyurethane processing (K jointing)

This Schoenbeck Clay pipe carousel for polyurethane processing is suitable for pipe of:

DN 400 up to DN 1200.

The carousel can operate with 16 pipes stations (DN 400 – 600) or retrofitted on site to operate with 8 pipe stations (DN 700 – 1200). The SPS programmed station guaranties the correct rotation speed for the processing of the polyurethane substance. Naturally we can also supply the required forms/ casts, conveyors and cranes for on and off loading


Seal and form casting for pipe sizes DN 400 - 1200

This plant and production technique differs in comparison to the previously mentioned as follows:

Pipe socket casting technique. The socket as in the pipe spigot ends are open system types and are filled with normal polyurethane, which basically means that the capping of the socket is not required. Naturally the handling and furnishing of all equipment for transportation, lifting and processing is calculated for high stability when handling pipe weights of ca 1700kp.

Production line consisted of: Chain transportation conveyors, Primer assembly station, Pipe pivot/ lifter, Pipe loader lifter equipment, Carousel for seal possessing, Polyurethane preparation assembly (double component mixer) Pipe "off" loader cranes, Pipe pivot/ lifter and Pipe packing crane.

The most favourable temperature for the pipes and forms when processing the seals lies between 25 and 30°C, this allows the pipe with new sealing to be "damage free" off loaded after 7 to 10 minutes.
Ceramic clay pipe: Polyurethane mixer

The polyurethane mixer is a specially designed electrically powered mixing station for barrelled polyurethane substances. The polyurethane Barrel is placed and locked into position by two sturdy mechanical screw lockable arms. The mixing disc is pneumatically lowered into the substance which is then mixed by a rotating circular disc at a set speed with timer function. On completion of this process, the mixing disc is then pneumatically elevated out of the substance.
Polyurethane preparation

And 2 – component dosage mixer

Container mixer
Continuous measuring of fluid levels
Electrical heating and cooling system for the continuous regulation of the temperature levels
Reverse water cooling aggregate in a closed circuit form without continuous fresh water supply.
Dosage pumps and hand mixer for continuous mixing ratios.


Contact us for your request!