Tarpey Harris was established in July 1969 in Denby Derbyshire originally as a Precision Engineer and toolmaker, over time they became involved with the casting die industry making dies and tools for Aeroengine blades and industrial gas turbine components. In 2005 the business moved into a new facility to supply wax patterns. Over the following ten years, the business doubled in size and in January 2019 the business was acquired by the Morvern Group as part of an MBO from Garner Holdings.
Today the business is very well-placed operating from its state-of-the-art wax injection facility. Tarpey Harris supplies multiple Blue-Chip companies with full wax injected parts and ready to shell assemblies. Its cutting-edge capability has been achieved through significant investment in recent years; including three new wax injection presses which have allowed the company to achieve strong long-term demand for its wax consumable products for both the aerospace and industrial gas turbine industries.
Operating from a dedicated 14,000 sq. ft factory, which is a fully climate-controlled workspace, the wax shop has a large range of injection machines. These range from 20-100 ton with side, top and bottom feed configurations.
Tarpey is a fully accredited AS9100 Rev D facility. As part of their commitment to quality control and assessment, they make use of Filmless Digital X-ray capabilities for detecting internal pattern defects on cored parts and Panametric ultrasonic equipment for wall thickness measurement after the injection process.
Tarpey uses an LK Integra CMM machine for pattern and component measurement to ensure conformity to specification and proper aerospace safety parameters. This also ensures full accountability and traceability in the production process; they also have two Suregrave Engraving machines which are used for accurate part serialisation and identification.
The manufacturing facility has over 30 assembly stations equipped with gas and electric soldering tools for all aspects of pattern dressing and cluster assembly, specialising in Equiax, DS and SX assemblies. Many stations also have manipulator arms to cater for larger parts.
Specially manufactured trolleys are used to transport the finished assemblies to the customer; using one of a fleet of climate-controlled vans – each equipped with its own tail lift for ease of delivery to the point of use.
Throughout the years the Tarpey Harris business has continued to employ and train skilled personnel to manufacture well-engineered wax products and assemblies that are prevalent in the many UK and European Casting facilities. Steve Roe, their Managing Director said their most important asset by far is their workforce, most of whom are time-served craftsmen and women who have learned their trade through many years of service with the company.