What Is The Process?
Sheet Extrusion – The extruder unit take’s the plastic pellets from a hopper it is heated and forced through a forming die where the outline shape is produced. Cooling rollers take the plastic from the die and is pulled through a set of rollers set at different temperatures to ensure the product meets its profile. At take off the product profile is taken through the calibrator section to winding units for packing.
Product Examples: Cladding , shrink wrap
Full Turnkey Solutions
Aqua’s aim is to build a life-long relationship with our customers, becoming essentially a “one stop shop” for all your temperature control requirements, for now and the future. The three divisions of our business – Sales, Hire & Service – enable us to help clients every step of the way.
Our USP is our ability to offer clients a complete turnkey solution. We’ll work with you from initial site visit and system design to installation and commissioning. Our services include:
- Free design consultancy, including AutoCAD drawings, 3D modelling and energy calculations
- Mechanical and electrical installation – encompassing civil works, offloading & positioning, pipework installation, mains power and cabling, all CDM compliance, full project management and delivery
- Aftersales support – including preventive maintenance plans to maximise product lifespan and efficiency
Our business is built on our core values of technical excellence, care, integrity and a “can do” attitude. We train all our people to be specialists in what they do – innovative engineers dedicated to providing practical, effective and efficient solutions supported by second-to-none customer service.
Typical Products Used In The Packaging, Plastics & Rubber Industry
Sheet Extrusion Cooling Considerations
- What is the temperature of the chilled water required?
- What water pressure do you require at the tools?
- What is your plastic throughput/hour?
- What type of plastic is being used?
- What is the vacuum motor input power?
- What is the in/out differential?
Why Is Cooling Required For The Plastic Sheet Extrusion Cooling Process?
Roll cooling is required to take the heat out of the plastic. These rollers can be temperature controlled, they can require cooling at different temperatures. They are designed to change the plastic from a soft state to a hardened state. Flow rate through the rolls can be very high.
Cooling Options To Consider: Free Cooling, Ambient Cooling Only.
Some of the larger machines have temperation units on them and therefore require low pressure pumps. They also have low cooling water temperature differences and therefore a buffer tank with separate process and chiller recirculation pumps is advisable across the process. On smaller systems a manual By-Pass on chiller circuit is acceptable. It is likely the water flow could change during operation so it if important the chiller always has its required minimum flow.
A lot of these systems apart from APET can run at 25C water supply therefore ambient cooling products could be applied.
How Is The Cooling Calculated
Tools = Plastic through put x Plastic Factor = Cooling Duty in KW.
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Why Call Aqua?
Established in 2001, Aqua Group are a market leading force in the design and supply of innovative temperature control solutions. Our team has a vast product knowledge base and years of application experience and is focused on finding the most energy efficient and price competitive solution for your specific business needs.
Whether you’re an end user looking for a bespoke cooling system design or a trade customer trying to source a single chiller unit, our specialist engineers are on hand to help. Aqua Group’s core values – Technical Excellence, Can-do Attitude, Integrity and Care – are at the heart of everything we do, and we always strive to achieve the highest level of customer service experience.
For help with product selection and technical advice call our sales team today on 0333 004 4433.