High-precision gear pump manufacturer Slack & Parr (Derby, UK) will use JEC World 2025 to spotlight its resin metering solutions and highlight how they are being used to improve fibre-to-resin control, boost process efficiency and reduce waste in the manufacture of composite materials and parts.
The company will exhibit alongside Composites UK on the UK Pavillion, Hall 6, Stand T62 where it will showcase its gear pump designs for improved accuracy in fluid mixing, flow and application of resins and polymers. It will illustrate how its technologies are helping manufacturers to develop lighter, stronger composite materials and parts, accurately, repeatably and at high volumes and production speeds.
Visitors will discover how the company’s bespoke gear pumps can be customised to the exact requirements of the application and to handle the most challenging materials, from very low viscosity polymers processed under high pressure to fast-cure resins that require in-line mixing and high-speed application.
Slack & Parr has been delivering high-precision gear metering pumps into the global materials market for more than 80 years. The company is the world’s leading supplier of gear metering pumps for the production of PAN precursor and its technologies are used in many composites manufacturing processes including coating, prepreg, filament winding and spraying, as well as in extruder-based processes most commonly used in the manufacture of thermoplastic composites.
“The way in which resins are delivered into the manufacturing line has a fundamental impact on the characteristics and performance of the finished material or part,” says Slack & Parr’s Industrial Director, Neil Anderton.
“When we control the speed and rate at which resins are applied to fibres or materials using a purpose-engineered metering pump, we can achieve extremely accurate fibre-to-resin ratios with overall accuracy greater than 99%. By applying exactly the right amount of resin onto the fibre, we can make the process cleaner and less wasteful while achieving a better end product.”
Slack & Parr gear pumps are engineered with extremely high levels of precision. They are built around hardened steel involute gears which are machined to precise tolerances of one to two microns, ensuring almost no internal slip even at high pressures and for the most challenging resins and polymers. Each Slack & Parr pump is made up of at least three individual, precision engineered plates which create a metal-to-metal seal when assembled. This method of manufacture ensures extremely accurate dimensional control of the internal components which leads to optimum accuracy and repeatability of flow.