Continuous flight auger (CFA) drilling rig CH 4

geotechnicalpilingfor excavators

Overview
The CH 4 piling rig is based on a compact excavator carrier and features a modular drilling mast with a multipurpose rotary head for maximum versatility in foundation work.

Key product description
The extended boom reach and zero tail swing rotation capability allow drilling in multiple positions while covering a wide working area. Excellent stability, even at maximum reach, is ensured by the variable-width undercarriage. The rig is equipped with a multipurpose rotary head delivering up to 43.7 kNm of torque, supporting efficient kelly drilling and CFA piling. The compact operator’s cabin and controls are optimized for confined sites, ensuring safe, comfortable, and highly maneuverable operation.

Available documentation
Technical datasheet / product flyer (CH 4) available in PDF format.

Main features (high level)

• Multipurpose rotary head supporting kelly drilling and CFA piling
• Extended boom reach with zero tail swing rotation capability
• Variable-width undercarriage ensuring stability at maximum reach
• Compact operator’s cabin and controls for confined sites

Technical specifications (table)
Overall Track Width | EU: 2.320 - 2.920 mm | US: 7' 7" - 9' 7"
Diesel Engine Power | EU: 54 kW | US: 73 HP
Pull-Up CS (Cylinder System) | EU: 60 kN | US: 13,488 lbs
Pull-Down CS (Cylinder System) | EU: 60 kN | US: 13,488 lbs
Main Winch Pull | EU: 65 kN | US: 14,612 lbs
Service Winch Pull | EU: 27 kN | US: 6,069 lbs
Nominal max. Torque | EU: 44 kNm | US: 32,450 lbf-ft
Max. Torque | EU: 35 kNm | US: 25,800 lbf-ft
Rotary Speed | EU: 48 rpm | US: 48 rpm
Operating Weight Range | EU: 15 - 16 t | US: 33,070 - 35,300 lbs

Kelly piles set-up (table)
Max. Diameter | EU: 1.000 mm | US: 3' 3"
Max. Depth | EU: 27,8 m | US: 91' 2"

CFA set-up (table)
Max. Diameter | EU: 750 mm | US: 2' 6"
Max. Depth | EU: 12,1 m | US: 39' 8"
Extraction Force | EU: 170 kN | US: 37,217 lbs

Characteristics / spécifications techniques

• Model: CH 4
• Multipurpose rotary head nominal max. torque: 44 kNm (32,450 lbf-ft)
• Max torque (alternate): 35 kNm (25,800 lbf-ft)
• Rotary speed: 48 rpm
• Diesel engine power: 54 kW (73 HP)
• Pull-Up / Pull-Down CS: 60 kN (13,488 lbs)
• Main winch pull: 65 kN (14,612 lbs)
• Service winch pull: 27 kN (6,069 lbs)
• Operating weight range: 15 - 16 t (33,070 - 35,300 lbs)
• Kelly piles: max diameter 1.000 mm; max depth 27,8 m
• CFA piles: max diameter 750 mm; max depth 12,1 m; extraction force 170 kN