A new range of mechanical speed variators is now available from Transdev. Manufactured in Italy by Chiaravalli S.p.A, the CHV series variators offer a stepless and smooth running speed reduction of up to 5:1 with the ratio controlled by a simple handwheel. They are particularly useful for pumping and mixing applications where the simple and durable design provides a heavy-duty aluminium housing that is fully enclosed to protect the robust planetary reduction mechanism. CHV mechanical speed variators provide a straightforward means of manually adjusting speed for a wide variety of applications and are suitable for use in harsh environments such as chemical plant, outdoor processes, temperature extremes and high humidity.
Three frame sizes (02, 05 and 10) are offered, covering output power from 0.18-0.75kW and output torque up to 6Nm. Nominal frame diameters are 140, 160 and 200mm with a B5 input and output flange mounting used throughout. All units can be horizontally or vertically mounted with a choice of terminal box position.
The range can be supplied complete with EFF2, four-pole AC motors. To ensure long life and low maintenance, all models feature oil-filled lubrication. Accessories available include a foot mounting kit, and a gravitational speed indicator may be specified for horizontally mounted versions.
This range can be mixed with Transdev's CHT and CHB series gearboxes and gearmotors, also from Chiaravalli. Offering IEC power ratings from 90W to 7.5kW, and with a wide selection of mounting options, this competitively priced range is dimensionally interchangeable with other market-leading Italian brands.
Transmission Developments, based in Poole, Dorset is one of the UK's premier designers, independent manufacturers and suppliers of mechanical power transmission and conveying products. Operating under the Transdev trading name, the company has three divisions covering belting, chain and engineering plastics. Transdev has exclusive and major partnership distribution agreements with world-class manufacturers and is a member of MULCO, the umbrella organisation of leading European power transmission companies distributing the Synchroflex, Breco and Brecoflex belt, pulleys and component ranges.