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Benefits of using a CyTec Locking Cylinder

CyTec-UK a subsidiary of the German CyTec Zylindertechnik GmbH has been working reliably with their high-quality core pull cylinders for more than 25 years, supplying the UK and Irish tooling and injection moulding industry for technical plastic parts in automotive, electrical and medical industries.
Contrary to a variety of locking systems, CyTec developed a variant that incorporates 3 advantages in one solution. Move , Pre-load ,Locking. Developed over 20 years ago there is no locking point but always a locking device. “Power without pressure” is the moto of the CyTec engineers.
Tools breathe, bolts stretch, and parts are subject to tolerances. CyTec is the only provider which compensates for these variables.
Cylinders can be supplied with safety sensors. These are integrated into the cylinder and monitor the safe holding of the position. The sensors are always calibrated and set to position.
What is Preload?
The concept of pre-load is often confusing for our customers, although it is important to understand the benefits when designing injection mould tools. The CyTec interlocking system is the only cylinder that works according to the principle of an automatic screw powered by pressure. The result is the same, converts into a force and self-locking holding power.
 By introducing pre load to our locking cylinders when holding side cores in place on injection mould tools, it allows for stretching of the mounting bolts and bedding in of cores, it is also critical for longer side cores over 100mm length. According to the specific force technology, strokes over 100mm – 500mm can also be realised. Another application is floating cores against each other. These complex applications are easily realised using this system. This makes it possible to implement a tube fitting with deflection cores easily using locking cylinders.
 We have seen many applications where after a small running period the cores bed in and a small adjustment must be made. This is very easy with CyTec locking cylinders and we offer several easy methods for cylinder adjustment.
 Please note that unlike other manufacturers cylinders we have tested, altering pre-load does not lower the holding force. There is no requirement to maintain hydraulic pressure during operation.
Imitators keep trying to produce simpler systems and low quality without understanding the difficulties. Often customers only realise after a certain time how complex the task is and what great know-how and security is behind it.
CyTec offer more than 40 different standard models for the designers. The ideal type for every core size. As screw-in cylinder with mounting flange or directly as a block cylinder mounted on the mould plate.
CyTec core locking cylinders can also be actuated by simple air pressure. This helps the mould maker for simple installation and adjusting of the core into the tool.
The use of locking cylinders for core pull applications demand flash free product between the core and the main shape. Especially for visible parts such as household appliances and car parts.
To prevent these errors from occurring on the component, the applications can be checked by means of FEM analysis at the customers request. Should after a certain run-in period flash becomes noticeable, there is always the possibility to adjust the cylinders via the pre-tensioning system.
 Our sales engineers can give advice on cylinder selection and mounting. We are here to help and help where necessary.
CyTec Zylindertechnik GmbH are continually striving to improve and develop our locking cylinders
Our range of CyBlock cylinders has been extended and we have a major development in new range of HSU CyPull cylinders that give higher locking forces in smaller bodied cylinders.
A range of locking air cylinders are also being developed and trialled. These will be suitable for packaging machines, food industry and medical moulding.
Further details in our next report.
If you require any further information please contact
Brian Taylor
CyTec Systems UK Ltd
Tel 0161 678 7090
http://www.cytecsystems-uk.com

| 12.02.2020

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