Tie-back anchoring drilling rig MC 22 A

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Overview
The MC 22 A is the evolution of Comacchio’s MC 22, integrating an automated duplex carousel for handling drill rods and casings of different diameters and lengths. It maintains the operational range of the MC 22 while adding automated rod/casing management and is particularly suited to anchor installation using dual-head drilling systems. The universal gripping system requires no adjustments when switching diameters, and combined with Comacchio radio control the operator can manage both drilling and carousel functions from a single control station.

Main benefits

• Automated duplex carousel for simultaneous storage and handling of rods and casings (different diameters/lengths).
• Universal gripping system: no reconfiguration required when changing diameters.
• Single-operator workflow via integrated Comacchio radio control (machine and carousel functions).
• Optimized for anchor installation with dual-head drilling setups.
• Patented mast articulation and on-board handling enable work in confined or hard-to-reach locations without extra lifting equipment or assistants.

Highlights / key technical points

• Carousel capacity: up to 10 rods + 9 casings.
• Rod sizes handled (min / max): 76 - 142 mm (3" - 5" 1/2).
• Casing sizes handled (min / max): 114 - 204 mm (4" 1/2 - 8").
• Typical rod/casing length handled: 3 - 3.5 m (10' - 11'5").

Technical specifications (table)
Overall Track Width — EU: 2.500 mm | US: 8' 2"
Diesel Engine Power — EU: 180 - 205 kW | US: 240 - 278 HP
Emission Standards — EU/US: Stage 3A/Tier 3 - Stage 5/Tier 4f
Retract Force — EU: 9.500 daN | US: 21,357 lbs
Feed Force — EU: 9.500 daN | US: 21,357 lbs
Feed Stroke — EU: 5.800 - 7.000 mm | US: 19' - 22' 11"
Torque Range — EU: 1.700 - 2.900 daNm | US: 12,539 - 21,389 lb*ft
Speed Range — EU/US: 70 - 260 rpm
Clamping Range — EU: 45 - 365 mm | US: 1" 3/4 - 1' 2"
Weight Range — EU: 24 - 25 t | US: 52,910 - 55,120 lbs

DOUBLE HEAD SET-UP (selected)
Max. Torque Upper Head — EU: 1.350 daNm | US: 9,957 lb*ft
Max. Torque Lower Head — EU: 2.900 daNm | US: 21,389 lb*ft
Mast Feed Stroke — EU: 5.800 mm | US: 19'

AUTOMATIC ROD & CASING CAROUSEL SYSTEM (selected)
Rod Size Min./Max. — EU: 76 - 142 mm | US: 3" - 5" 1/2
Casing Size Min./Max. — EU: 114 - 204 mm | US: 4" 1/2 - 8"
Length — EU: 3 - 3,5 m | US: 10' - 11'5"
Max. Capacity — 9 + 1 (typical configuration)

Detailed technical specifications

• Overall Track Width: 2.500 mm (EU) / 8' 2" (US)
• Diesel Engine Power: 180 - 205 kW (EU) / 240 - 278 HP (US)
• Emission Standards: Stage 3A/Tier 3 - Stage 5/Tier 4f
• Retract Force: 9.500 daN (EU) / 21,357 lbs (US)
• Feed Force: 9.500 daN (EU) / 21,357 lbs (US)
• Feed Stroke: 5.800 - 7.000 mm (EU) / 19' - 22' 11" (US)
• Torque Range: 1.700 - 2.900 daNm (EU) / 12,539 - 21,389 lb*ft (US)
• Speed Range: 70 - 260 rpm (EU/US)
• Clamping Range: 45 - 365 mm (EU) / 1" 3/4 - 1' 2" (US)
• Weight Range: 24 - 25 t (EU) / 52,910 - 55,120 lbs (US)
• Double-head specifics: Upper head max torque 1.350 daNm; Lower head max torque 2.900 daNm; mast feed stroke 5.800 mm.
• Automatic duplex carousel: handles rods 76 - 142 mm and casings 114 - 204 mm; typical rod/casing length 3 - 3.5 m; max capacity 9 + 1.