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Feature Industrial cleaning Washer leaves pizza trays sparkling


Papa Johns, the world’s third largest pizza chain, is now using fresh dough exclusively for all pizzas sold by its fast growing UK operation. Equipment supplied by Industrial Washing Machines has played a key role in facilitating the production of this fresh dough


apa Johns is dedicated to pro- ducing quality pizzas using the best ingredients, and the com- pany is clear that one such ingre- dient is fresh pizza dough, rather than the frozen dough used by many of its competitors. Handling fresh dough is, however, significantly more challeng- ing than handling the frozen product. From its new plant in Milton Keynes, which has been specifically set up to prepare and supply pizza ingredients of the highest quality for the UK market, Papa Johns despatches fresh dough on trays to its franchisees throughout the country. After the dough has been used, the empty trays are returned to the plant, where they are washed and sterilised ready for immediate re-use.


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Because of the sticky nature of fresh dough and the fast turnaround needed for the trays, the requirements for the washing and sterilising processes are more than usually onerous. For help in meeting these requirements efficiently, reliably and cost effectively, Keith Bingham, engineering consultant for the whole of the new Papa Johns plant, approached Industrial Washing Machines (IWM).


“I’ve worked with IWM on many previous projects,” says Bingham,


Super fast cleaning for fixture masks


fixture masks, which become encrusted with coating when its medical implants undergo Vacuum Plasma Spraying. This automated blast cleaning process also has the added advantage of removing a time consuming and arduous manual blasting process from the workplace.


A The company turned to Guyson, the industrial finishing equipment manufacturer, for a solution as it was looking to


improve throughput on a manual blasting operation. The cleaning process was being undertaken using a suction fed manual blast cabinet and could take anything up to 30 minutes to clean each fixture mask free from overspray, prior to it being reused. The fixture mask is used to hold the component and at the same time mask a selected area whilst the component is thermal sprayed with either hydroxyapatite or titanium coatings. The automated Multiblast RSB (Rotating Spindle Blast) system achieves a perfect clean finish in the required time, with virtually no operator involvement, leaving the operator to perform other duties. The machine can now undertake the cleaning process in a fraction of the time per unit, to a consistent, uniform standard and deliver 14 clean components at one go. This Multiblast system is fitted with a PLC/HMI. This gives full operational control over virtually all machine variables and enables through a simple menu system for a ‘recipe’ to be set-up with differing process requirements such as traverse, oscillation and airwash speed, start and finish gun positions etc. Guyson International


T: 01756 799911 www.guyson.co.uk Factory Equipment NOVEMBER/DECEMBER 2011 Enter 315


leading British manufacturer of orthopaedic implants and surgical instrumentation has installed a Guyson Multiblast RSB blast machine for cleaning off hydroxyapatite and titanium coating ‘overspray’ from its cup and stem implant


“and I’ve always been favourably impressed by the performance of the company’s products and by its excel- lent value for money. In addition, IWM has wide expertise in the design of washing machines, and is always amenable to customising its products so that they meet the end user’s exact requirements. Importantly, this cus- tomisation is carried out at modest cost, and without significantly affect- ing deliveries.”


For the new Papa Johns factory, IWM supplied a custom-designed two- lane tray washer with an integrated drier. The machine has a nominal


Papa Johns pizza chain has installed a custom-designed tray washer from Industrial Washing Machines to clean fresh dough from its pizza trays


maximum capacity of 1,000 trays per hour to allow for future increase in demand. To ensure maximum washing efficiency with effective and depend- able removal of the dough residue from even the most heavily soiled trays, the machine uses sustained jet- ting with hot water and detergent throughout the wash cycle. For maxi- mum economy, the wash water is recirculated from a heated tank, and effective filtration is provided as an aid to reducing the frequency of water changes needed.


Special provisions are also made for hot-air drying, as it is imperative the trays are bone dry when they are deliv- ered to the dough production line. “The machine was ordered at the end of November, and was manufactured to our requirements and delivered to site by the first week of February,” says Bingham. “This is excellent service, given that this period includes the Christmas break. Only a few minor changes were needed at the pre-deliv- ery inspection, and the machine was straightforward to install and commis- sion. IWM provided an excellent machine backed with great service.” The IWM tray washer at Papa Johns’ Milton Keynes plant has now been in daily use for almost six months, and it is fully meeting the company’s requirements in every respect. It dependably delivers clean dry trays, it is easily able to meet and sustain the necessary high rate of throughput, it is economical in operation and it is prov- ing to be exceptionally reliable.


Industrial Washing Machines T: 0121 4599511 www.indwash.co.uk Enter 314


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