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18 PIGMENT AND RESIN TECHNOLOGY June 1991 Kremli n two-pac k polyurethane plant fo r Komatsu U K excavators A s is now synonymous with a Japanese owned company, Komatsu UK's strict adherance to quality control, with resultant quality assurance for the customer, goes right through to the finish. To maintain this quality, Komatsu recentl y decided that thei r range of hydraulic excavators producd at Birtley, Co. Durham, should be finihe d in a tougher, longer lasting two-pack non-isocyanate polyurethane coating. A t the sam e time production wa s to be increased fro m 1 0 to 13 excavators per day. Following discussion, Kremlin Spray Painting Equip ment of Slough wer e given th e brief to convert th e paint finishing section of the production line to the new finishing system within seven days and without stopping production. Komatsu UK has a 200,000m 2 site at Birtley, where th e first hydraulic excavator was produced in October 1986 . Tuurnove r is no w £65 m p.a., wit h 8 0 per cent of production being exported to the EEC and other European countries. Wit h local content of equipment and materials used being aroun d 7 0 per cent and rising to 8 0 per cent, it wa s part of Komatsu policy to choose reputable UK based suppliers such as Kremlin for the ne w finishing system. Central to this system are five Kremlin PU2500 two- component metering and mixing pump units. Thes e give accurate proportioning and automati c mixing of th e two - component paint. Fitted wit h remote controlled valves, these machines deliver high level precision whatever the viscosity of each component . Since th e components are not mixed until they are about to leave th e pu m units before entering the Airmix spray guns, it means that there is less wastage of prepared paint. A t Komatsu, th e PU2500 pumps are set to a 5:1 ratio, although they can operate dow n to 1:1 if required. Each pum p is fitte d wit h an alar m to war n if a lo w level of base or catalyst material is reached. There is also an th e sprayers. Airmix gives a quality finish comparable integrated alarm operating fro m th e paint kitche n whic h wit h a conventional air spray gun and a higher rate of wil l shut dow n the PU machines if th e paint supply runs paint application than an HVLP system. low. This stops air getting into the system. Al l in all, th e £80,000 worth of Kremlin equipment There are also five Kremlin 0410 0 transfer pumps to supplied for the updating of the Komatsu finishin g line supply the yellow and blue base, catalyst and thinners provides a flexibl e system givin g a wid e range of options. fro m the paint kitchen to the circulating system. In Commenting on th e performance of the ne w finishing addition, tw o Kremlin 0214 0 pumps supply special two - system, Andy Knight, Production Engineer at Komatsu, pack epoxy primer from the paint kitchen to the primer says "W e are very pleased wit h the quality finis h being application booth. There is a third 0214 0 pump which obtained and the behaviour of the Kremlin two- has been adjusted to apply a splatter finish, using a component application equipment. In th e futur e w e shall conventional air spray gun, on to the counter-balance continus to use Kremlin equipment, not only because of weight s of the excavators. its performance but also because of the service and technical back-up received from Kremlin". Kremli n Airmi x spray guns Paint spray operator Trevor Scrafton adds: 'The For applying the special primer and the mixed two-pack Airmi x gun feels good and is wel l balanced. I a m really epoxy finish, seven Kremlin Airmix spray guns have pleased wit h the Kremlin set-up". been supplied . Acknowledge d as th e market leader in air assisted airless application. Airmix drastically reduces Details: Kremlin Spray Painting Equipment Ltd., 83 9 overspray and provides a better working environmen t for Yeovil Road, Slough , Berks. SL1 4JA . Tel: 075 3 38143.
Pigment & Resin Technology – Emerald Publishing
Published: Jun 1, 1991
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