Excavator Rock Drilling Attachment

The excavator rock drilling attachment is designed for drilling and preparing hard rock surfaces before splitting or breaking operations. It connects directly to excavators and turns standard machines into drilling equipment for quarry, mining, and construction rock work.

Parameters of Excavator Rock Drilling Attachment

Model	YG-130	YG-152	YG-210
Suitable Excavator	20T-36T Excavator	36T-48T Excavator	48T-65T Excavator
Maximum Horizontal Splitting Height	9475mm	9985mm	10680mm
Maximum Vertical Splitting Height	6715mm	6905mm	6770mm
Maximum Splitting Depth	6705mm	7025mm	8050mm
Maximum Splitting Distance	10225mm	10875mm	11640mm
Pilling Beam Length	3875mm	4850mm	5525mm
Drilling Advance Stroke	2000mm	2600mm	3500mm
Maximum Drilling Thrust Force	50KN	50KN	50KN
Maximum Drilling Pull Force	32KN	32KN	32KN
Piling Advance Stroke	1500mm	1800mm	2300mm
Maximum Piling Thrust Force	160KN	160KN	160KN
Maximum Piling Full Force	100KN	100KN	100KN
Hydraulic Pressure	Max. 35Mpa	Max. 35Mpa	Max. 35Mpa
Hydraulic Flow	Min. 240L/min	Min. 240L/min	Min. 240L/min
Weight	4200kg	6200kg	8300kg
Dimensions	421014001785mm	527014851840mm	581014851840mm
Operation Mode	Remote Control	Remote Control	Remote Control

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Structure Details of Excavator Rock Drilling Attachment

The design focuses on durability under high-load drilling conditions.

Main components:

Reinforced rotary head housing
High-torque hydraulic motor
Wear-resistant drill rods
Stabilized boom connection frame
Anti-vibration support system

Application of Excavator Rock Drilling Attachment

Mining excavation zones — Prepares deep rock layers for breaking in continuous mining work.

Tunnel pre-drilling work — Forms boreholes on tunnel faces to guide controlled fracture.

Road foundation rock removal — Drills roadbed rock for easier and safer excavation.

Hydropower station rock cutting — Enables controlled drilling in hard dam foundation rock.

Municipal underground structure projects — Supports low-vibration drilling in urban underground works.

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Four Strict Prohibitions for Safe Operation

1. Drilling geometry control

Keep drilling strictly vertical to the rock surface.
Hole depth must exceed 600mm.
Maintain hole spacing at 500–800mm.
Uneven layout will cause unstable fracture lines and drilling deviation.

2. Lubrication must never be ignored

Never drill without oil mist lubrication or air compressor support.
Dry drilling leads to rapid bit wear and overheating.
Apply grease between wedge blocks every 3–5 cycles to reduce friction failure.

3. Start-up sequence discipline

Rotation must start together with feed motion.
Never push thrust before rotation begins.
Dry hammering is strictly prohibited.
Incorrect sequence can damage the impact system immediately.

4. Surface cleaning before drilling

Do not drill directly on dirty or loose rock surfaces.
Remove mud, gravel, and unstable fragments first.
Clean contact surface prevents bit deflection and breakage.

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Cost Efficiency and Investment Return

Cost advantages:

Lower drilling labor demand
Reduced tool replacement frequency
Faster cycle time per hole
Less downtime in the rock preparation stage

Return evaluation in real projects:

Project cycle shortened by 15–25%
Average drilling time reduced by 30–45%
Tool wear cost reduced by 20–35%

Customer Project Feedback

A quarry contractor in Spain submitted an inquiry after facing slow drilling progress in granite extraction zones. They searched for an excavator rock drilling attachment to replace manual drilling rigs.

Inquiry stage:
The client requested a system compatible with a 30-ton excavator and high-frequency rock drilling cycles.

Purchase decision:
After technical confirmation, they selected a hydraulic configuration paired with a rock splitter for an excavator for post-drilling fracture work.

Delivery process:
Equipment shipped within the scheduled timeline and installed on-site within 5 days.

Usage feedback (first 60 days):

Average hole drilling time reduced from 6 minutes to 3.8 minutes
Daily drilling capacity increased by about 40%
Drill bit replacement interval extended by 25%
Operator training time completed within 2 days

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FAQ – Excavator Rock Drilling Attachment

Q1: Can it work with all excavator brands?
Yes, it connects with most hydraulic excavators between 10–45 tons.

Q2: What rock types can it handle?
Granite, basalt, limestone, and mixed hard rock layers.

Q3: Can it be used alone without splitting tools?
Yes, but best efficiency comes when paired with a rock splitting attachment for excavator.

Q4: How often should drill bits be replaced?
It depends on rock hardness, usually after 120–200 drilling cycles.

Q5: Is operator training required?
Basic hydraulic control training is enough, typically 1–2 days.

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About YG Machinery

YG has more than 20 years of experience in heavy construction machinery manufacturing. The company holds CE certification and serves clients in over 200 countries.

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