Traditional rock breaking methods come with serious downsides. Blasting creates vibration, noise, and safety risks. Hydraulic hammers pound away for hours, wearing out tools and operators. None of these approaches work well in urban areas, near sensitive structures, or in confined spaces like tunnels.
A mini excavator rock breaker solves these problems by combining drilling and splitting into one attachment. It mounts directly on your excavator, drills a hole, then inserts a hydraulic wedge that cracks the rock from the inside. No explosives. Minimal vibration. No flying debris. The rock splits cleanly along controlled lines.
We have built rock breaking equipment for over a decade. Their factory in Zhengzhou, China, produces the YGM-S200 and YGM-S280 models. Each unit undergoes a full test before shipping. Buyers receive a test report and video with their machine.
Product Specifications at a Glance: Mini Excavator Rock Breaker
We offer two models of this equipment. Each one uses a hydraulic splitting system powered by your excavator’s auxiliary circuit.
| Model | YGM-S200 | YGM-S280 |
|---|---|---|
| Splitting Force (ton) | 3800 | 5700 |
| Piston Diameter (mm) | 200 | 250 |
| Required Drilling Diameter (mm) | 90-110 | 110-130 |
| Required Drilling Depth (mm) | 1600 | 1700 |
| Crack Width (mm) | 32 | 35 |
| Drilling Gap Distance (mm) | 1000-1500 | 2000-2500 |
| Splitting Speed (s) | 40-50 | 40-50 |
| Required Pressure (MPa) | 60-80 | 80 |
| Splitting Gun Length (mm) | 2700 | 2800 |
| Weight (kg) | 900 | 1000 |
The YGM-S200 handles smaller excavators and medium rock jobs. The YGM-S280 delivers more splitting force for hard granite and large-scale projects. YG Machinery provides free application advice based on your rock type and excavator size.
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Why a Mini Excavator Hammer Alone Falls Short
A mini excavator hammer breaks rock by pounding it from the outside. This method works, but it has limits. The hammer transfers energy through the tool bit to the rock surface. Cracks form slowly. Hard materials like granite absorb the blows without breaking.
The real problem is time. A hammer takes 15-30 minutes to break a single large boulder. The operator sits there, the machine vibrates, and the tool wears out quickly. In noise-sensitive areas, a hammer may not even be permitted.
The integrated system works differently. It drills a hole first, then applies splitting force from inside the rock. The rock has low tensile strength – it pulls apart much more easily than it compresses. By working from the inside out, the machine splits a boulder in 40-50 seconds. That is 10-15 times faster than a hammer for a large rock.
How YG Machinery Rock Breaking Machine Delivers Results
A rock breaking machine follows a simple two-step process. The entire cycle takes about 3 minutes per hole position.
Step 1: Drilling. The machine positions its drill steel against the rock face. The hydraulic motor spins the bit while the feed system pushes it forward. It drills a hole 90- 130 mm in diameter and up to 1700mm deep. The drill speed averages 1 meter per minute. Dust suppression keeps the work area clean.
Step 2: Splitting. Once the hole reaches depth, the operator rotates the splitting gun into the hole. The hydraulic cylinder pushes a wedge between two counter wedges. The wedge expands, forcing the counter wedges against the hole walls. The force reaches 3800-5700 tons. The rock splits from the inside out within 40-50 seconds.
The operator then moves to the next hole position. The spacing between holes ranges from 1 meter to 2.5 meters depending on the model and rock type. The crack follows a straight line along the hole pattern. No over-break. No damage to surrounding material.
Rock Breaker for Sale: 6 Advantages That Make a Difference
A rock breaker for sale from YG offers clear advantages over traditional methods. Here is what buyers get.
- Integrated design – One attachment does both drilling and splitting. No switching tools. No extra equipment on site. The system mounts on your excavator in 30 minutes.
- Non-explosive operation – No blasting permits required. No flying debris. No ground vibration that damages nearby structures. Safe for urban work and tunnel projects.
- Fast cycle time – Each hole position takes about 3 minutes. A typical job with 10 holes finishes in 30 minutes. Hand methods or hammers would take hours.
- High adaptability – Works on all rock types from soft limestone to hard granite. Adjust drilling depth and spacing based on rock hardness and required block size.
- Clean splitting – The rock splits along the drilled line. No dust clouds. No uneven breaks. The split face is smooth and usable for construction stone.
- Lower operating cost – One machine does the work of two. Fuel consumption drops because you run one attachment instead of a drill and a separate splitter. Tool wear is minimal.
Real-World Applications of Mini Excavator Rock Breaker
Construction crews use this equipment for many types of work. Here are the most common jobs.
Tunnel excavation. Underground spaces need precise rock removal. Blasting is often banned due to vibration risks. The integrated system splits rock cleanly without shaking the tunnel roof or walls. A tunnel project in Uganda used a YG machine to split granite blocks in 3 minutes per section.
Quarrying. Natural stone quarries need blocks of specific sizes. The machine drills holes along the desired split line and cracks the stone cleanly. No damage to the valuable stone. No waste from over-break.
Foundation work. Building foundations often require rock removal. The machine works in tight spaces where blasting is impossible. It splits rock without damaging adjacent footings or utilities.
Road construction. Widening roads through rocky terrain needs controlled rock removal. The machine works near traffic without causing road closures or safety concerns.
Demolition. Reinforced concrete structures need careful breaking. The machine splits concrete from the inside, leaving rebar intact for cutting. No impact damage to the remaining structure.
Technical Features of Mini Excavator Rock Breaker Integrated System
The YG system includes several design features that improve reliability and performance.
Heavy-duty drill steel. The drill steel uses hardened steel that resists wear in abrasive rock. The 120mm diameter bit penetrates hard materials without dulling quickly. Replacement bits are available from YG stock.
Hydraulic splitting cylinder. The cylinder produces 3800-5700 tons of splitting force. The force remains consistent regardless of excavator hydraulic pressure. A special booster system maintains output even on smaller machines.
Rotary splitting gun. The gun rotates 360 degrees to align with any hole position. No need to reposition the excavator for each hole. The operator controls rotation from the cab.
Dust suppression system. An air compressor delivers 8m³ of air at 5bar. This clears drill cuttings and suppresses dust. The system connects to a water spray for additional dust control.
YG Machinery – Your Manufacturing Partner
YG Machinery has built rock breaking equipment for over 10 years. Their factory in Zhengzhou, China, produces the integrated drill and splitter in-house. They cast their own splitting cylinders, machine the drill components, and assemble each unit.
YG tests every machine before shipping. Each unit runs through a full drilling and splitting cycle at the factory. Buyers receive a test video showing their machine splitting actual rock. The warranty covers 12 months from delivery.
Spare parts ship from warehouses in Houston and Rotterdam. Drill bits, seals, and hydraulic hoses arrive in 2-4 days. Complete splitting cylinders take 10 days. YG publishes a full parts list with every machine.
Find the Right Model for Your Project
6 Frequently Asked Questions About Mini Excavator Hammer
The YGM-S200 works with excavators from 20-30 tons. The YGM-S280 works with 25-40 ton machines. Check your excavator’s hydraulic flow and pressure. The system needs 60-80 MPa and adequate flow for the splitting cylinder.
Each hole position takes 40-50 seconds for splitting. Add drilling time of 1-2 minutes per hole. A typical 10-hole pattern for a large boulder takes about 20-30 minutes total.
Yes. The 3800-5700 ton splitting force handles granite, basalt, limestone, and sandstone. Harder rocks may need closer hole spacing or deeper holes. YG provides a rock hardness guide with each machine.
No, and no permits needed. This machine runs entirely on hydraulic force, making it the go-to choice for contractors who need safe, hassle-free operation in urban environments.
Grease the drill steel shank before each use. Check hydraulic hoses for wear. Inspect the splitting wedges for damage. Total time: 10 minutes. Weekly: change drill bit if dull. Monthly: replace hydraulic filters.
Yes. The same process works on reinforced concrete. Drill holes through the concrete, then split from the inside. The rebar stays intact for cutting. Works well for bridge demolition and foundation removal.
Ready to Choose Your Rock-Breaking Machine?
We offer free consultation for buyers. Tell them your excavator model, rock type, and daily output requirements. They will recommend the right model and provide a detailed cost analysis.
Three ways to move forward:
- Request a quote – Send your excavator specifications. Get pricing within 24 hours.
- Watch a test run – Ask for a video of the machine splitting your rock type.
- Visit the factory – See production and meet the engineering team in Zhengzhou.
Contact YG Machinery today via WhatsApp, email, or the website form. Every machine includes a warranty and remote support.
