Continuous flight auger (CFA) drilling rig CH 18

soil investigationgeotechnicalpiling

Overview
The CH 18 is a large-diameter piling rig in the 45-ton class designed to combine high performance with reduced mobilization costs. It can be transported in a single piece with the Kelly bar and rotary head installed, enabling rapid setup and immediate commissioning on site.

Configurations & capabilities
Available in WS (Winch System) and CS (Cylinder System) configurations, the CH 18 features a multifunctional rotary head and modular conversion kits managed through the CCS (Comacchio Control System). This configuration allows the machine to handle a wide range of foundation drilling applications:

• Kelly drilling (with or without casing)
• CFA (Continuous Flight Auger) piles
• FDP (Full Displacement Piles)
• Soil mixing techniques
• Vibro stone columns
• Large-diameter DTH (Down-The-Hole) drilling
• Micropiles (single or double rotary head systems)

Adaptability
The CH 18 is available in low-headroom (LHR) configurations to work in restricted spaces or sites with limited overhead clearance.

Key features (visual highlights)

• Nominal max. torque: 190 kNm
• Operating weight class: approx. 45 ton
• Diesel engine power range: 201–209 kW

Technical specifications (table representation)
Overall Track Width — EU: 2.550 - 4.200 mm / US: 8' 4" - 13' 9"
Diesel Engine Power — EU: 201 - 209 kW / US: 274 - 284 HP
Pull-Up CS (Cylinder System) / WS (Winch System) — EU: 226 / 240 kN / US: 50,800 / 53,950 lbs
Pull-Down CS (Cylinder System) / WS (Winch System) — EU: 204 / 240 kN / US: 45,860 / 53,950 lbs
Main Winch Pull — EU: 160 kN / US: 35,970 lbs
Service Winch Pull — EU: 72 kN / US: 16,200 lbs
Nominal max. Torque — EU: 190 kNm / US: 140,000 lbf-ft
Max. Torque — EU: 170 kNm / US: 125,400 lbf-ft
Rotary Speed — EU/US: 51.8 rpm
Operating Weight Range — EU: 40,1 - 44,8 ton / US: 88,400 - 98,770 lbs

Set-ups & application-specific data (table representation)
Kelly piles — Max. Diameter: EU 2.000 mm / US 6' 7"; Max. Depth: EU 62,8 m / US 206'
CFA set-up — Max. Diameter: EU 1.000 mm / US 3' 3"; Max. Depth: EU 25 m / US 82'; Extraction Force: EU 480 kN / US 107,900 lbs
DP (Displacement piles) — Max. Diameter: EU 400 mm / US 16"; Max. Depth: EU 22 m / US 72' 2"
SM (Soil mixing) — Max. Diameter: EU 2.000 mm / US 6' 7"; Max. Depth: EU 22 m / US 72' 2"
LDTH (Large DTH) — Max. Diameter: EU 1.000 mm / US 3' 3"; Max. Depth: EU 50 - 60 m / US 164' - 196'
LHR (Low Headroom) — Max. Diameter: EU 1.800 mm / US 5' 11"; Max. Depth: EU 23,1 - 35,8 m / US 75' 11" - 117' 5"; Min. Height: EU 9 m / US 30'
MP (Micropiles) — Rotary Torque: EU 57 kNm / US 42,000 lbf-ft; Clamping Range: EU 120 - 620 mm / US 4 3/4" - 24"

Technical characteristics

• Overall Track Width: EU 2.550 - 4.200 mm / US 8' 4" - 13' 9"
• Diesel Engine Power: EU 201 - 209 kW / US 274 - 284 HP
• Pull-Up (CS/WS): EU 226 / 240 kN / US 50,800 / 53,950 lbs
• Pull-Down (CS/WS): EU 204 / 240 kN / US 45,860 / 53,950 lbs
• Main Winch Pull: EU 160 kN / US 35,970 lbs
• Service Winch Pull: EU 72 kN / US 16,200 lbs
• Nominal max. Torque: EU 190 kNm / US 140,000 lbf-ft
• Max. Torque: EU 170 kNm / US 125,400 lbf-ft
• Rotary Speed: 51.8 rpm
• Operating Weight Range: EU 40,1 - 44,8 ton / US 88,400 - 98,770 lbs
• Kelly piles: max Ø 2.000 mm — depth up to 62.8 m
• CFA: max Ø 1.000 mm — depth up to 25 m — extraction force 480 kN
• DP: max Ø 400 mm — depth up to 22 m
• Soil mixing: max Ø 2.000 mm — depth up to 22 m
• Large DTH: max Ø 1.000 mm — depth 50–60 m
• Low headroom version: min. height 9 m — max Ø 1.800 mm
• Micropiles: rotary torque 57 kNm — clamping range 120–620 mm