Manufacturing & Engineering North East 2015, Metro Radio Arena, Newcastle, 8th / 9th July 2015
PDJ Vibro Ltd - Stand A20
VIBRATORY FINISHING MACHINE SALES AND SUBCONTRACT SERVICES
PDJ Vibro will present the two sides of its business - first, its new and used finishing machine sales activities and secondly, its contract finishing service. Both are designed to make life simpler for manufacturers that want to minimise manual work and move towards automating the finishing process for health and safety reasons and to improve consistency.
Components are processed efficiently and economically, whether it involves deburring, edge breaking, radiusing, superfinishing, degreasing, rinsing and drying, as well as pretreatment for anodising, chemical blacking or painting.
The sales division of PDJ Vibro offers new and used vibratory bowls, which account for a majority of turnover, as well as barrels and high energy centrifugal equipment. Free process advice is given, taking into account the number of parts to be finished per batch, frequency of production, drainage and noise issues, the size of components and how vulnerable they are to impingement damage.
Over 6,000 varieties of consumable including ceramic and porcelain media, detergents and other compounds can be provided. Over 70 tonnes of the main items are held in stock at the company’s headquarters in Bletchley, which has a showroom, technical centre and demonstration facility with over 100 machines in stock.
Designed for mass processing of small to medium sized components, the vibratory bowls have chamber sizes from 7.5 to 6,000 litres. Options include PLC dosing of chemical additives, water metering and recirculation, automatic parts separation, drying and acoustic suppression.
To complement the high-end vibratory finishing and polishing bowls, a range of three competitively priced models were introduced recently with process chamber capacities of 300, 150 and 75 litres. The machines are priced about 25 per cent lower than the company's other bowls but are nevertheless built to a high specification. They have a durable, stress relieved bowl with cast polyurethane lining and are driven by a heavy-duty, three-phase electric motor.
The other division of PDJ Vibro’s business is around-the-clock subcontract finishing and polishing at the Bletchley facility. Components are normally turned around within 24 hours and more than 35 million were processed last year. The company offers a collection and delivery service but customers can arrange their own transportation if preferred and even wait for them to be ready.
An exclusive agreement concluded with a US company last year means that PDJ Vibro’s subcontract division is also able to offer a non-vibratory superfinishing and surface improvement service that is said to be 16 times faster than conventional processes. It is applicable mainly to aerospace primes and their supply chains, although medical and motorsport engineers may well be interested.
As an example, 16 hours of traditional superfinishing of turbine blades and vanes is typically required to achieve a surface finish of 0.08 micron Ra over all of the aerofoil surfaces. This has been compressed into one hour using the new process, which can polish any material including nickel-based alloys and stainless steel.