November/ December 2021

28 HYDRAULICS & PNEUMATICS November/December 2021 www.hpmag.co.uk Independent provider of valve automation products, Actuated Solutions Ltd (ASL), reports that it continues to see demand grow for its KEH series of quarter-turn actuators from Quifer. Distributed in the UK exclusively by ASL, the KEH features a compact modular design incorporating a spring return actuator and closed-loop hydraulic pump. The springs provide a true failsafe action with the precision of electrical control. When energised, hydraulic pressure is generated to open the actuator and, upon loss of power, the KEH automatically moves to the failsafe position. The springs do not require maintenance and ASL claims they are considered to be the industry standard for field-proven reliable shutdown – offering better reliability than other solutions such as batteries which have a restricted temperature range and require regular monitoring and periodic replacement. Ideal for harsh or hazardous conditions ASL add that the KEH is ideal for operating in harsh or hazardous conditions and is available for both rack & pinion and larger scotch yoke actuators with torques up to 46,000NM. Multiple options are available including push button local controls, limit switches, modulating control, quick closing and manual override. ASL’s director, Chris Hickey, comments: “The KEH is a real step forward in quarter-turn actuation and it’s proved to be very popular with customers demanding a robust solution for failsafe applications when air is not available. It’s a hugely versatile product and one that we know performs exceptionally well even in the most challenging of environments.” SIL rated and available for both ATEX and safe areas, ASL states that the electro-hydraulic actuator affords users safety and functionality, which includes full European certification and manufacture. www.actuated-solutions.co.uk ASL satisfies increasing demand for true failsafe functionality with electro-hydraulic KEH series from Quifer Bobcat has launched its new R2-Series generation of 5-6 tonne mini-excavators – the new E50z and E55z models - offering many new state-of-the-art features and options. In the E50z and E55z, Bobcat’s Zero House Swing (ZHS) feature adds another level of protection to the standard zero tail swing design, providing full peace of mind when operating the machine near walls. With ZHS, the rotation of the upper structure of the E50z and E55z remains fully within the footprint of the tracks. This includes the boom swing offset cylinder, front corners, handles, lights and even the door in both open and closed positions. The E50z ZHS model is an easy-to-use, robust machine optimized for specific rental industry needs while introducing the next level of operator comfort and features required by demanding owner-operators. The weight has been increased and optimized in the E50z to maximize stability, which has allowed Bobcat to provide a long arm as standard equipment. The E55z is a premium performance model - it is the largest and most powerful Bobcat machine with the ZHS design. The R2-Series mini-excavators are powered by the Kubota V2403 4-cylinder engine providing 36.5 KW (49 HP) at 2200 RPM. Built around the operator Like the Bobcat R-series 2-4 tonne machines launched in 2018, the new R2-Series mini-excavators are built around the operator and are designed to take this philosophy a big stage further. This makes operators feel even more at home when working with these machines. Both excavators offer a best-in-class roomy cab with space where the operator really needs it, with more headroom, legroom and plenty of storage areas. A comfortable seat that can be optionally heated and fitted with a headrest ensures operators will enjoy working a full day in both of these new machines. The new 5-inch optional display panel takes comfort and visibility to the next level. The new R2-Series mini-excavators are equipped with state-of- the-art technology such as a latest generation main control valve, dual curve joysticks and proportional thumb-controlled boom swing offset. Traditional Bobcat performance coupled with great controllability ensures that the new excavators feel like an extension of the operators’ hands when they are in command of the controls. To ensure that operators can work precisely and safely, the new excavators offer best-in-class panoramic visibility from the cab, with solid but narrow pillars, ensuring the operator is fully aware of the working area around the machine. Features such as powerful demisting ensure that visibility remains uncompromised in all circumstances. ncreased versatility Up to three arm-mounted hydraulic auxiliary lines plus a case drain line enable a wide choice of machine customization options to match any attachment requirement, further enhancing the role of these excavators as excellent tool carriers. www.bobcat.com HYDRAULICS New R2-Series 5-6 tonne mini-excavators from Bobcat