Auger drive units - Drumcutters

By: Drumcutters  06-Dec-2011
Keywords: Drive Units, Hydraulic Motors, Planetary Gears

Hydraulic rotary heads supplied as attachments for excavators are now common.  The majority use planetary gears to obtain high torques from relatively small hydraulic motors.  Longitudinal drum cutters are fitted with large powerful hydraulic motors ideally suited for driving augers.

Owners asked whether their longitudinal drum cutters could be used as rotary heads so Erkat designed an adaptor that could be attached to the output shaft for this purpose.  Although extremely useful for some applications, the standard longutidinal drum cutter plus adaptor was too long and too expensive for use as a dedicated auger drive unit.

Erkat designed a short housing and alternative shaft arrangement that allowed them to offer an auger drive unit at a competitive price.  The range of auger drive units covers torques from 3.5 to 23.4 kNm and the can be mounted on excavators from 7 to 40 tons in weight.

Full technical details can be found in the Auger Drive Unit leaflet shown below.

Downloads Relating to Product Range

Keywords: Auger Drive, Auger Drive Unit, Drive Units, Drum Cutter, Hydraulic Motors, Longitudinal Drum Cutters, Planetary Gears, Rotary Heads,

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Erkat rotary drum cutters; robust, reliable tools

Rotary drum cutters or rock cutters are hydraulic excavator attachments designed to increase the range of work available to excavators and increase their return on investment. Optimum cutting performance is achieved when the hydraulic motor in the drum cutter matches the hydraulic output from the excavator's pumps. Suitable for excavators 10 - 20 tons 65 kW power Fitted with one 65 kW hydraulic motor, recommended for material up to 50 MPa.


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For those looking for the maximum flexibility with a drum cutter excavator attachment, the option of fitting special wood cutting picks into the standard pick boxes allows the drum cutters to achieve reasonable performance in wood cutting applications with low capital expenditure. Increased performance can be obtained from drum cutters supplied with special wood cutting drums fitted with non-rotating cutter teeth.


Longitudinal drum cutter - Drumcutters

Suitable ofr excavators 10 - 25 tons 65 kW output Same hydraulic motor as ER 400 L, ER 450L has 450mm and ER 600 L has 535mm diameter drum. Due to its unique design, people have found other applications where the longitudinal drum cutter can be used. Longitudinal drum cutters can be supplied with an adaptor that allows them to be used as an auger drive unit.


Accessories for use with rotary drum cutters

Rotators are an essential tool to obtain maximum productivity in specialist applications such as tunnel profiling, renovation of large surfaces, profiling diaphragm walls and working in limited space. The complete range of pick boxes are available from stock including heavy duty pick boxes fitted with hardened steel inserts for great wear resistance and longer working life.


drum cutter with cutter wheel or wheel cutter

Cutting short lengths of narrow, shallow trenches in hard material can be a problem especially when the length of trench does not justify the use of a full scale trenching machine. Drum cutters fitted with a wheel cutter provide an alternative solution and under the right circumstances can be extremely cost effective. ER 100 Max wheel dia 650 mm, max cutting depth 210 mm. ER 1200 Max wheel die 1000 mm.