Hard rock mining and excavation have always been constrained by two opposing forces: the need to break rock efficiently, and the need to avoid the vibration, fly rock and noise that come with blasting. On sites near buildings, inside tunnels, in urban zones and in environmentally protected areas, blasting is either heavily restricted or completely prohibited. A hydraulic rock drill and splitter resolves this conflict by combining rock drilling and hydraulic splitting into a single integrated process that breaks hard rock through controlled internal force rather than external impact.
This integrated rock drill and splitter is a new-generation static rock breaking system designed specifically for hard rock mining projects. It first drills a precise hole into the rock face using proven Swedish rock drilling technology mounted on a patented drill frame, then inserts a splitting wedge into the hole and applies hydraulic force generated by an Italian intensifier system to split the rock from within. The two-stage splitting cylinder delivers double pressure boost, which gives the machine enough force to handle ultra-hard rock formations that ordinary splitters cannot process.
YG Hydraulic Rock Drill and Splitter Specifications:
| 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 | 4210*1400*1785mm | 5270*1485*1840mm | 5810*1485*1840mm |
| Operation Mode | Remote Control | Remote Control | Remote Control |
How a Hydraulic Rock Drill and Splitter Works?
A hydraulic rock drill and splitter operates in two sequential stages.
Stage 1: Drilling. The excavator positions the drill head against the rock face. A high-frequency hydraulic impactor combines rotation and percussive force to bore precise, small-diameter holes into the rock. The drilling unit uses a high-power hydraulic impactor and rotating device to rapidly penetrate hard rock, creating the necessary holes for the splitting phase.
The YG-130 model delivers 50KN drilling thrust force and 32KN pull force, with a drilling advance stroke of 2000mm. All three models share the same 50KN thrust, ensuring consistent drilling performance across the range.
Stage 2: Splitting. The splitting unit—consisting of a central wedge and two counter wedges—is inserted into the drilled hole. Ultra-high-pressure hydraulic force drives the central wedge forward, pushing the counter wedges outward against the rock walls. This lateral force exceeds the rock’s tensile strength, causing it to fracture cleanly from the inside out.
The science behind it: Rock has very high compressive strength but relatively low tensile strength. The rock drill and splitter attachments exploit this weakness by applying internal pressure, not external impact. The result is a clean, controlled fracture with no flying debris, minimal vibration, and no damage to surrounding structures.
The operator controls both stages from the excavator cab using wireless remote control. No need to switch attachments. No manual handling between drilling and splitting. The workflow is continuous.
7 Features of the YG Hydraulic Rock Drill and Splitter
- Blasting-free operation. This is the defining advantage. The system operates without explosives, making it the preferred method for urban areas, near existing infrastructure, or within sensitive geological sites. No permits, no safety zones, no regulatory delays.
- Minimal vibration and noise. By using static internal force to break rock, the equipment generates negligible vibration and dramatically reduced noise compared to blasting or hydraulic hammering. This is crucial for construction near hospitals, residential buildings, tunnels, or historical structures where vibration limits are strictly enforced
- Precise control. Unlike a hydraulic breaker that uses repetitive impact, the rock drill and splitter attachments use static pressure. The operator can control the direction of the crack—essential when working near existing foundations or utility lines.
- Extreme splitting force. The internal wedge mechanism amplifies excavator hydraulic power to overcome even the hardest granite or basalt. The system generates splitting forces that easily overcome the low tensile strength of hard rock.
- Multi-angle operation. The excavator provides mobility and multi-angle working capability, allowing precise positioning for drilling and splitting on vertical, horizontal, or inclined surfaces.
- Robust construction. Designed for the harshest environments, components are made from high-strength alloy steels with specialized coatings to resist wear and heat.
- Remote control operation. Single-machine wireless remote control keeps the operator at a safe distance from the rock face during both drilling and splitting phases.
5 FAQs About Hydraulic Rock Drill and Splitter
A: The two-stage double boost system handles ultra-hard rock including granite and basalt, as well as moderate hardness formations. Actual speed depends on rock hardness and hole spacing.
A: An integrated rock drill and splitter uses one frame for both functions, so the drill hole and wedge share the same positioning reference. No re-alignment is needed, one operator controls the full cycle, and per-cycle time drops significantly.
A: No. It uses fully static hydraulic splitting with no explosives. No blasting permits, exclusion zones or certified blasters are needed. Standard excavator operation experience is sufficient.
A: Yes. It produces no vibration, no impact noise and no fly rock, so it works in densely populated areas, near buildings and alongside active roads where blasting and hydraulic hammers are restricted.
A: The drill bit and splitting wedge assembly are the primary wearing parts. Both are easy to inspect and replace on site. The imported wedge material offers long service life, and YG provides long-term supply of all wearing parts.
Excavator Drill and Splitting Machine
YG Machinery has a proven track record of supplying excavator drill and splitting machines to mining, quarrying, and construction customers worldwide. The company provides technical support and spare parts availability for international customers.
If you need a hydraulic rock drill and splitter that drills and splits hard rock in a single continuous workflow, the YG series provides proven performance. Contact us with your excavator model and typical rock conditions. We will recommend the right model for your operation. Get a free quote for your rock drill and splitter attachments today.
