Lightweight tipping hoists are faster and more durable

Edbro is providing the key to improved payloads and faster tipping with its CS series of tipping hoists for rigid truck and trailer tippers. The CS range of cylinders is claimed to be the lightest, fastest and most durable range of telescopic cylinders in the world.

A major factor behind the low-weight, high-strength design of the CS series is Edbro's special one-piece tube construction, which is laser welded to ensure the required levels of tube concentricity and high-quality welds demanded by the compact design. The construction maximises cylinder strength at the top of each extended stage to resist side loads induced by the body during tipping. It also provides maximum cylinder stiffness at full extension. As a result, the CS tipping cylinders are able to provide increased lift capacity, at the same time as providing increased payloads through weight savings of up to 20 per cent. The benefit of this for fleet operators is increased payloads - that mean increased profits.

Complementing the strength and stiffness of the Edbro design are innovative features including: integral stop-contact faces; silicon bronze coated sliders at the base of each cylinder section that prevent scoring/leakage and provide low-friction operation for faster cycling; an innovative high-performance seal system that reduces friction when lowering; and double-lip wipers and non-metallic wear rings that enhance durability over the life of the product.

Edbro claims that its unitary design is unique due to its integral stop contact faces that give the CS series higher reliability and enable higher speeds. Manufactured from high-tensile steel and 20 per cent greater in surface area, they eliminate the need for clip rings and grooves. As a result, the design is more reliable, as there are no components to come loose under the impact stresses of fast cylinder cycling, causing damage to the lifting cylinder that is often beyond repair. In addition, the fact that the stop contact faces in the CS Series cylinders are 20 per cent greater means that the cylinders can genuinely be used with higher pump flows and, importantly, they do not require a stroke-limiting device.

The value of the CS design in terms of faster tipping speeds can be judged from its performance figures with a range of pumps. Typically Edbro specifies an 82litre/min pump kit for UK applications. This gives a typical tube velocity (at 1000 rpm pump speed) of 0.2m/s. However, this tube speed figure can be improved to 0.3m/s using a 130 l/min pump kit. This would give an operator a reduction in tip time of nearly 40 per cent and could save 30secs per tip for a large trailer cylinder.

The CS range of tipping cylinders comprises nine models with lift capacities from 13 tonnes to 60 tonnes (at 150 bar). These units are supported by full hydraulic kits and by large tipping valves, which give faster lowering times. The result of this combination is faster cycle times for the customer. For those doing many tips, this can be a crucial advantage, especially when tipping on congested sites where turnaround times may be extremely important.


Nelson Street

+44 (0)1204 528888

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