Double-Acting Telescopic Hoists Cylinders

Wide Range of Specifications

Delta manufacture a broad range of 2-stage to 6-stage double-acting telescopic cylinders. In the last two years Delta has manufactured almost 150 models with varying number of stages, stroke and mounting clevises or trunnions.

How it Works

Delhoists are available as double-acting multi-stage hoists in a broad range of specifications. This type of cylinder is constructed with porting to both the annular and full bore area so hydraulic pressure can be applied to both surfaces and the cylinder stages can move in multiple directions without the need of an outside force, such as gravity.

Applications

Delhoist double-acting multi-stage cylinders are used in a wide variety of applications across many industries where space restrictions prohibit the use of a rod cylinder and require a compact telescopic cylinder design.

Delhoists are ideal for use in the waste management sector in garbage and waste compactors, and in food processing applications, as well as horizontal ejector hoists in underground mining trucks and above ground materials trucks, where vertical space or safety requirements prohibit conventional tipping.

A Delta Hydraulics' multi-stage telescopic deployed in an EjectX dump truck

A Delta Hydraulics' multi-stage telescopic deployed in a Caterpillar AD30 underground mining dump truck

Unparalleled Product Life

Delhoist telescopic cylinders, or hoists, are the highest quality telescopic cylinders in the world offering unparalleled product life.

  • Cylinder stages are a unitary construction design which eliminates unreliable gland nuts or base plugs from the product and extends its life.
  • The glands in Delhoist telescopic stages feature a heavy cross-section compared to inferior competing brands and do not distort due to lateral loads.
  • Quality hard chrome plating.
  • Precision skiving and burnishing of the stage bores to ensure concentricity to provide smooth extension and contraction.
  • The use of quality proven twin-lip seals, wipers and wear strips.
  • The incorporation of a flapped wiper that reduces and eliminates contamination such as dust and moisture from entering the cylinder, thereby increasing its life.