In Portugal, a demolition and renovation company was struggling with a challenging project in the city‘s historic district. The job involved removing old concrete foundations and brick walls inside a 19th‑century building slated for conversion into a boutique hotel. Access was tight. Noise restrictions were strict. And the existing hydraulic hammer on their 10‑ton excavator was too powerful – it shook the entire structure, risking damage to the adjacent protected facades.
The contractor needed a breaker that could deliver precise impact, fit into narrow spaces, and operate with reduced vibration and noise. After researching options, they purchased a YG850 rock breaker attachment for an excavator from YG Machinery. This model features an 85mm chisel diameter, is suitable for 7‑14 ton carriers, and comes in a silent‑type housing with vibration dampening.
The difference was immediate. The Portuguese crew completed the foundation removal in four days instead of the estimated eight. The silent‑type breaker kept noise complaints from neighboring buildings to a minimum. And the reduced vibration meant no cracks appeared on the preserved facade. The owner now uses the rock breaker attachment for the excavator on every urban demolition job.
For a free quote on a rock breaker attachment for your excavator, contact us today.
Contact: 【WhatsApp/WeChat/Phone】+86 159 3715 3321
Technical Parameters Of The Rock Breaker Attachment For Excavator
Below are key specifications for popular YG breaker models. The Portuguese contractor chose the YG850.
| Model | ChiselDiameter | SuitableCarrierWeight | Main bodyWeight | OperatingPressure | HydraulicOil Flow | Blow Frequency | HoseDiameter |
| mm | Ton | kg | Kg/cm 2 | I/min | bpm | inch | |
| YG350 | 35 | 0.5-1 | 40 | 90-120 | 15-25 | 800-1300 | 1/2 |
| YG400 | 40 | 1-3 | 53 | 90-120 | 15-25 | 800-1300 | 1/2 |
| YG450 | 45 | 1.2-3.0 | 67 | 90-120 | 20-30 | 700-1200 | 1/2 |
| YG530 | 53 | 2.5-4.5 | 85 | 90-120 | 25-50 | 600-1100 | 1/2 |
| YG600 | 60 | 2-5 | 140 | 90-120 | 25-50 | 600-1100 | 1/2 |
| YG680 | 68 | 4-7 | 152 | 110-140 | 40-70 | 500-900 | 1/2 |
| YG750 | 75 | 6-9 | 210 | 120-150 | 50-90 | 400-800 | 1/2 |
| YG850 | 85 | 7-14 | 278 | 130-160 | 60-100 | 400-800 | 3/4 |
| YG100 | 100 | 10-15 | 475 | 150-170 | 80-110 | 350-700 | 3/4 |
| YG1250 | 125 | 15-18 | 616 | 150-170 | 80-110 | 350-700 | 3/4 |
| YG1350 | 135 | 16-26 | 846 | 160-180 | 130-150 | 400-800 | 1 |
| YG1400 | 140 | 18-26 | 916 | 160-180 | 120-180 | 350-500 | 1 |
| YG1400A | 140 | 18-26 | 952 | 160-180 | 120-180 | 350-500 | 1 |
| YG1500 | 150 | 27-35 | 1088 | 160-180 | 150-190 | 350-700 | 1 |
| YG1550 | 155 | 28-36 | 1309 | 180-200 | 200-260 | 250-400 | 1-1/4 |
| YG1650 | 165 | 30-40 | 1438 | 180-200 | 200-260 | 250-400 | 1-1/4 |
| YG1650P | 165 | 30-40 | 1586 | 180-200 | 200-260 | 250-380 | 1-1/4 |
| YG1750 | 175 | 35-40 | 1929 | 180-200 | 210-290 | 200-350 | 1-1/4 |
| YG1850 | 185 | 35-45 | 2411 | 190-220 | 220-270 | 200-250 | 1-1/4 |
| YG1990 | 190 | 40-55 | 2626 | 190-220 | 220-290 | 180-200 | 1-1/4 |
| YG2100 | 210 | 60-80 | 3396 | 200-240 | 290-350 | 150-200 | 1-1/4 |
Three Challenges That Made Urban Demolition Hard In Portugal
The Portuguese contractor faced three common problems across European city demolition projects.
Problem 1: Noise Restrictions
Working in a residential and commercial area meant strict decibel limits. A standard hydraulic hammer would have triggered complaints and potential fines. The silent‑type breaker cut the noise significantly.
Problem 2: Vibration Damage
Adjacent buildings had fragile plaster walls and old masonry. The contractor could not risk cracking them. A rock breaker attachment for an excavator with proper dampening was essential.
Problem 3: Tight Access
The building‘s entrance was narrow, and the interior space was cluttered with temporary shoring. A bulky breaker would not fit. The YG850‘s compact profile allowed the excavator to work inside rooms.
The YG850 solved all three.
How The Rock Breaker Attachment For Excavator Transformed The Project?
The YG850 is a silent‑type breaker, meaning it features a double‑wall housing with rubber dampeners and acoustic insulation. The hydraulic system uses nitrogen gas backpressure to store and release energy efficiently, reducing vibration transmitted to the carrier.
Reduced Noise, Legal Compliance
The Portugal crew measured noise levels at the property boundary: 82 dB with the silent breaker versus 98 dB with a standard hammer. This kept the project within the municipality‘s 85 dB daytime limit. No fines. No stop‑work orders.
Controlled Power
The variable blow frequency (400‑800 bpm) lets the operator match the impact to the material. Soft brickwork received light, fast taps. Thick concrete foundations received slower, harder blows. The result: clean break lines without over‑breaking or shaking the building.
Durability for Continuous Work
The Portuguese contractor ran the YG850 for 6‑8 hours daily over two weeks. The chisel showed normal wear. The hydraulic system remained leak‑free. The nitrogen pressure stayed stable. Maintenance was limited to daily greasing through the central auto‑grease fitting.
Real Feedback From The Portugal Demolition Team
After completing the hotel foundation project, the contractor shared his results.
- Project time: Eight days estimated, completed in four.
- Noise complaints: Zero. The silent‑type breaker kept neighbors happy.
- Vibration damage: None. The facade‘s old plaster remained intact.
- Operating cost: The breaker consumed less hydraulic oil than expected because the efficient design required lower flow.
- Payback: The rock breaker attachment for the excavator paid for itself on this single project through time savings and avoided fines.
The project manager said, “I was worried about using any breaker near that old building. But the YG850 silent‑type proved me wrong. It hit hard where needed but did not shake the walls. The operator could stand next to the machine and have a conversation. We finished so fast that the client gave us a bonus.”
An operator added: “The hydraulic hammer for an excavator for sale is easy to control. The variable frequency dial is right there. I switch from brick to concrete without stopping. The auto‑grease system saves me from climbing up every hour. Best breaker I have used.”
Ready To Break Through Your Next Project In Portugal?
The Portugal case proves that a properly matched rock breaker attachment for an excavator can double productivity while reducing noise and vibration risks. The YG850 silent‑type breaker is built with a durable housing, efficient hydraulic design, and easy maintenance features.
YG Machinery has shipped hydraulic hammers for excavators for sale to customers in Portugal, Italy, Mexico, Argentina, New Zealand, and many other countries. We provide standard export packaging (wooden crate), installation guidance, and spare parts support, including chisels, seal kits, and through‑bolts.
Stop shaking your machines and your neighbors. Start breaking clean, fast, and quiet.
【WhatsApp/WeChat/Phone】+86 159 3715 3321
Share your project location in Portugal and your excavator details. We will send you a quotation within 24 hours.