Breaking hard rock on a construction site is rarely a simple job. When a project involves foundations, road construction, trenching, quarry work, or other rock excavation, contractors often need a solution that can drill accurately and split rock with controlled force. This is where a combined drilling and splitting system can make a difference. This USA contractor selected the YG-152 model after looking for a more efficient way to handle hard-rock excavation. Want to know more details? Contact YG Machinery!
The USA Contractor Facing Hard-Rock Challenges
The customer was a construction contractor in the United States.
His company mainly worked on foundation excavation, road construction, utility trenching, commercial site preparation, rock excavation, land development, and small quarry-related projects. The company regularly worked with excavators ranging from medium to large sizes.
However, several projects involved hard rock that could not be removed efficiently with a conventional bucket.
The contractor explained:
“Our excavators had enough power, but the problem was how to break the rock accurately without creating unnecessary damage around the working area.”
That became a major concern on projects where nearby structures, underground utilities, or existing pavement had to be protected. After comparing different methods, the contractor became interested in a YG rock drill and splitter that could combine drilling and splitting operations.
The Rock Was Strong, but the Working Area Was Tight
The customer’s biggest project involved excavating a hard-rock section for a commercial construction site. The rock layer was located beneath part of the planned foundation area. The contractor faced several difficulties.
- Conventional Excavation Was Too Slow. Using a standard excavator bucket against hard rock resulted in low productivity. The operator could remove loose material, but breaking large sections of solid rock was difficult.
- The Customer Wanted Controlled Breaking. The project was located relatively close to existing structures. The contractor wanted to avoid unnecessary impact on the surrounding area.
- Moving Between Work Areas Took Time. The project included several different rock sections. Transporting separate machines between locations could increase downtime.
- Labor and Equipment Costs Were Rising. Using separate drilling and breaking equipment meant additional operators, transportation, and coordination. The customer wanted a more integrated solution.
The contractor’s excavator was within the recommended 36T–48T excavator range for the YG-152. This made the model a suitable match for his existing equipment. The YG-152 has a working weight of approximately 6,200 kg and dimensions of about 5270 × 1485 × 1840 mm. More importantly, the machine combines drilling and splitting functions. Instead of bringing one machine for drilling and another system for splitting, the contractor could use the same excavator-mounted equipment to complete both key stages. For the customer, this simplified the workflow.
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Specific Parameters of YG Rock Drill and Splitter
| 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 |
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From Drilling to Splitting: One Continuous Workflow
The biggest attraction for the contractor was the ability to connect drilling and splitting into one working process. The general workflow was: Position the Excavator. The operator moved the excavator to the rock section.
- Position the Drilling System: The drilling section was aligned with the planned drilling location.
- Drill the Rock: The machine used hydraulic power to advance the drilling tool into the rock. The YG-152 provides a 2,600 mm drilling advance stroke and up to 50 kN drilling thrust force.
- Prepare the Splitting Operation: After the required holes were prepared, the operator positioned the splitting system.
- Apply Splitting Force: The splitting system generated hydraulic force to break the rock along the desired direction. The YG-152 provides a maximum piling thrust force of 160 kN.
- Remove the Broken Rock: The excavator could then move the broken material away from the working area. This created a relatively straightforward cycle: Position → Drill → Split → Remove → Repeat.
4 Effects Produced After Using The Rock Drill And Splitter
1. Less Equipment Switching
Before using the integrated system, the contractor had to coordinate different equipment for drilling and rock breaking. That created additional steps. With the YG-152, the drilling and splitting functions were integrated into one system. The contractor estimated that equipment-switching and related preparation time was reduced by approximately 30% on the project. This was especially useful when the rock sections were scattered across the site. Instead of waiting for another machine to arrive, the operator could continue with the next stage of the process.
2. Project Speed Improved by Approximately 28%
The contractor compared the rock excavation schedule with similar previous projects. For the relevant hard-rock section, the original estimate was approximately 18 working days. With the YG-152, the contractor completed the main rock-breaking work in around 13 working days. That represented an estimated productivity improvement of approximately 28%.
3. Labor Requirements Became Easier to Manage
The contractor also found that an integrated hydraulic rock drill and splitter could simplify workforce planning. Previously, different stages of the operation could require different equipment and operators. With the integrated system, the company could organize the operation around one primary excavator and its operator. The company estimated that labor hours directly associated with equipment coordination and rock-breaking preparation were reduced by approximately 25%.
4. The Remote Control Made Positioning Easier
The YG-152 uses remote control operation. For this customer, the remote-control system was useful when positioning and coordinating the equipment around the work area. The operator could manage the machine without needing to remain directly beside every operating component. This helped the team maintain better control of the work process.
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Customer Feedback: “The Workflow Became Much Simpler”
After completing the project, the customer shared his experience.
“The biggest benefit was that we did not have to organize separate equipment for every stage. The drilling and splitting process became much easier to coordinate.”
He continued:
“The YG-152 matched our excavator well after we checked the hydraulic requirements. Once the operator became familiar with the drilling pattern, production improved.”
He also mentioned the project schedule:
“We expected the rock work to take around 18 days. We completed the main work in about 13 days, which gave us more time for the next construction stage.”
Finally, he added:
“For contractors working with hard rock, I think an integrated system is worth considering, especially when equipment movement and project time are important.”
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How to Choose the Right Rock Drill And Splitter Model
The YG series includes different models for different excavator sizes.
| YG-130 | YG-152 | YG-210 |
| Designed for approximately 20T–36T excavators. Weight: 4,200 kg | Designed for approximately 36T–48T excavators. Weight: 6,200 kg | Designed for approximately 48T–65T excavators. Weight: 8,300 kg |
This means buyers should not simply choose the largest model.
The correct choice should be based on:
- Excavator tonnage
- Hydraulic flow
- Hydraulic pressure
- Rock conditions
- Required drilling depth
- Required splitting range
- Project size
- Transportation requirements
The Customer’s Buying Rock Drill And Splitter Advice
The USA contractor gave three suggestions to other buyers.
Check the Excavator First: Make sure the excavator meets the required hydraulic flow and pressure.
Understand Your Rock: Different rock formations require different drilling and splitting approaches.
Consider Total Project Cost: Don’t only compare equipment purchase prices. Consider labor, transportation, equipment rental, downtime, project schedule, maintenance, and productivity. A machine that costs slightly more initially may offer better value if it saves significant project time.
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This U.S. customer story shows why a combined drilling and splitting solution can be valuable for hard-rock excavation.
The YG-152 provided the contractor with drilling capability, strong hydraulic splitting force, long working reach, remote-control operation, excavator-mounted mobility, and integrated drilling and splitting functions. Most importantly, the contractor was able to simplify the workflow. Instead of treating drilling and splitting as two completely separate operations, the company could organize them as part of one integrated excavation process. For contractors dealing with difficult rock conditions, an integrated rock drill and splitter can be a practical option when controlled breaking, equipment mobility, and project productivity are important.
If you are searching for an integrated rock drill and splitter for a foundation, road, trenching, quarry, or land-development project, first confirm your excavator tonnage and hydraulic specifications.
Have a similar hard-rock excavation project? Contact YG with your excavator model, tonnage, hydraulic flow, hydraulic pressure, and project requirements. We can help you select the right model and provide a suitable drilling and splitting solution.