Cylindrical pile driver CH 23

excavator mounted

Overview
The CH 23 piling rig is a high-capacity multipurpose rig mounted on a dedicated excavator carrier. Typical operating weight ranges from 58 to 69.5 t. The machine is designed to be self-erecting and requires minimal disassembly for transport, enabling fast site setup and reduced mobilization time.

Key capabilities

• Suitable for multiple foundation methods: bored piles (kelly), CFA (continuous flight auger), displacement piles (DP) and soil mixing (SM).
• Configurable with Cylinder Pull Down System (CS) or Winch Pull Down System (WS) to match job requirements.
• Available with multiple kelly bar lengths; pile depths up to 68 m (67.7 m listed in technical data).
• Modular design provides high nominal torque and flexible configuration for large-diameter foundation works.

Technical Specifications (table)
Overall Track Width | EU: 2.980 - 4.380 mm | US: 9'10" - 14'1"
Diesel Engine Power | EU: 234 - 261 kW | US: 314 - 350 HP
Pull-Up CS (Cylinder) / WS (Winch) | EU: 280 / 330 kN | US: 63,000 / 74,200 lbs
Pull-Down CS (Cylinder) / WS (Winch) | EU: 232 / 330 kN | US: 52,200 / 74,200 lbs
Main Winch Pull | EU: 250 kN | US: 56,200 lbs
Service Winch Pull | EU: 133 kN | US: 29,900 lbs
Nominal max. Torque | EU: 262 kNm | US: 193,200 lbf-ft
Max. Torque | EU: 225 kNm | US: 166,000 lbf-ft
Rotary Speed | EU / US: 40 rpm
Operating Weight Range | EU: 58 - 69,5 t | US: 127,870 - 153,220 lbs

Kelly piles set-up (table)
Max. Diameter | EU: 2.500 mm | US: 8'2"
Max. Depth | EU: 67,7 m | US: 222'

CFA set-up (table)
Max. Diameter | EU: 1.000 mm | US: 3'3"
Max. Depth | EU: 25 m | US: 82'
Extraction Force | EU: 700 kN | US: 157,366 lbs

DP (Displacement piles) set-up (table)
Max. Diameter | EU: 600 mm | US: 2'
Max. Depth | EU: 21,5 m | US: 70'6"

SM (Soil Mixing) set-up (table)
Max. Diameter | EU: 2.000 mm | US: 6'7"
Max. Depth | EU: 21,5 m | US: 70'6"

LHR (Low Headroom) set-up (table)
Max. Diameter | EU: 2.200 mm | US: 7'3"
Max. Depth | EU: 43 m | US: 141'1"
Min. Height | EU: 9,2 m | US: 30'2"

Notes
Values include EU and US equivalents where available. Data reflect the machine's modular configurations (CS/WS, kelly/CFA/SM/DP/LHR); ranges correspond to typical factory configurations and optional equipment.

Technical data

• Model: CH 23
• Manufacturer: Comacchio
• Operating weight: typical range 58 - 69.5 t (127,870 - 153,220 lbs)
• Nominal max. torque: 262 kNm (193,200 lbf-ft)
• Diesel engine power: 234 - 261 kW (314 - 350 HP)
• Main winch pull: 250 kN (56,200 lbs) — service winch: 133 kN (29,900 lbs)
• Pull-up / Pull-down: CS 280 kN / 232 kN; WS 330 kN / 330 kN (values in kN and lbs provided above)
• Rotary speed: 40 rpm
• Kelly piles capability: up to Ø 2,500 mm and depths to 67.7 m
• CFA capability: up to Ø 1,000 mm and depths to 25 m; extraction force 700 kN
• Displacement piles: up to Ø 600 mm and depths to 21.5 m
• Soil mixing: up to Ø 2,000 mm and depths to 21.5 m
• Low headroom configuration: min height ~9.2 m; depth up to 43 m
• Self-erecting design for fast site setup and minimal transport disassembly