A Hydrostatic excavator, also called a 360-degree Hydrostatic excavator or Hydrostatic digger, sometimes abbreviated simply to a 360, is a Hydrostatic engineering vehicle consisting of a Hydrostatic backhoe and cabmounted on a pivot (turntable is a more apt description) atop an undercarriage with tracks or wheels, propelled with hydrostatic power.
Note: the term Hydrostatic excavator is sometimes used as a general term for any piece of digging equipment. Tracked Hydrostatic excavators are sometimes called Hydrostatic trackhoes.
Hydrostatic Excavators are used in many roles:
- Hydrostatic Digging of trenches, holes, foundations
- Hydrostatic Demolition
- General Hydrostatic grading Hydrostatic/landscaping
- Hydrostatic Heavy lift, e.g. lifting and placing of pipes
- Hydrostatic River dredging
Hydrostatic Excavators come in a wide variety of sizes. The smaller ones are called Hydrostatic mini-excavatorsor Hydrostatic compact excavators. One manufacturer’s largest model weighs 84980 kg (187,360 lb) and has a maximum bucket size of 4.5 ³m (5.9 ³yd). The same manufacturer’s smallest Hydrostatic mini-excavator weighs 1470 kg (3240 lb), has a maximum bucket size of 0.036 m³ (0.048 yd³) and the width of its tracks can be adjusted to 89 cm (35 inches). Another company makes a mini Hydrostatic excavator that will fit through a doorway with tracks that can be adjusted to only 70 cm (28 inches) wide.
Most smaller Hydrostatic excavators have a small backfill (or dozer-) blade. It’s a horizontal bulldozer like blade attached to the undercarriage and is used for pushing removed material back into a hole.
A tracked Hydrostatic excavator by Daewoo.
Mini Hydrostatic digger by Kubota
Mustang Hydrostatic Compact Excavator
A Caterpillar Hydrostatic excavator at work
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