Mait HR 120 Piling Rig



The HR 120 is a multipurpose compact drilling rig suitable for medium to large diameter drilled shafts, for drilling in any kind of soil by using a rotary system with kelly bar, augers and buckets. The HR 120 utilizes friction or interlocking kelly bars for various depths. The cabin has been designed to offer maximum efficiency and comfort for the operator and it can also be equipped with an electronic depth counter, automatic levelling system and air conditioning and heating system.
The HR 120 comes mounted on expandable crawler, but can even be mounted on a truck.
In either version, the kelly bar does not have to be removed for transport, which decreases the transport costs and set-up time on the jobsite. The HR 120 can be configured for works for Bored Piles, Continuous Flight Auger (CFA) and even Diaphragm Walls by use of kelly.









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Works with Augers & Buckets:
Max diameter 450 / 1.300 mm 1.5 / 4.3 ft
Without lower mast extension 1.500 mm 5 ft  
Depths 35 - 40 m 114 - 131 ft  

Works with CFA:
Max diameter 600 mm 2 ft
Depths 10 + 4 m 33 + 13 ft  

Diaphragm Walling:
Max diameter 600 x 2.500 mm 2 x 8 ft
Depths 20 m 65.5 ft  
Rotary:
Nominal torque 120 KNm @ min 10 max 36 rpm 88,500 lbsft
Unloading speed 160 rpm  
Rotary stroke 2.500 mm (4.300 mm on request) 8 ft (14 ft on request)  

Winches:
Main winch nominal pullback 120 KN 26,500 lbs
Auxiliary winch nominal pullback 72 KN 16,000 lbs  

Diesel Engine: CATERPILLAR 6.6 ACERT
Power 129 KW 2.200 rpm 173 HP @ 2,200 rpm
Hydraulic installation 4 pumps  
Hydraulic oil tank 460 litres 121 gal  
Fuel tank 145 litres 38 gal  

Expandable Crawlers:
Lenght 4.170 mm 13.7 ft
Width 2.500 - 3.600 mm 8 ft - 12 ft  
Shoes 600 mm 2 ft  
Approx. Weight: 28 tons 62,000 lbs  
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