September 2019 SEPTEMBER 2019 HYDRAULICS & PNEUMATICS VOL. 24 No. 6 SEPTEMBER 2019 Flywheel couplings offer compact options for construction machinery p10 p42 p26 Professor Brian Cox inspires the next generation Sealing for innovative welding method Pushing the boundaries of compressor efficiency OFFICIAL PUBLICATION FOR THE FLUID POWER & SYSTEMS AND AIR-TECH EXHIBITIONS