A mini excavator crusher bucket is a powerful hydraulic attachment that mounts directly onto an excavator arm. It crushes rock, concrete, and demolition waste on-site — eliminating the need to haul material away. Contractors worldwide rely on this bucket crusher for excavator work in tight urban spaces, road renovation, and site clearance. YG Machinery offers 8 models — YG-1 through YG-8 — to fit excavators from 8 to 75 tons and beyond. Each model delivers consistent output with adjustable particle size, making it a practical and cost-effective solution for various job sites.
YG Mini Excavator Crusher Bucket – Full Parameter Table
Before selecting a model, match your excavator’s weight and hydraulic flow to the specs below. This helps ensure safe operation and maximum crushing performance.
| SPECIFICATION | UNIT | YG-1 | YG-2 | YG-3 | YG-4 | YG-5 | YG-6 | YG-7 | YG-8 |
| Carrier Weight | Ton | 8-12 | 14-18 | 120-25 | 25-30 | 30-35 | 35-50 | 50-75 | ≥ 75 |
| Load Capacity | m³ | 0.15 | 0.55 | 0.66 | 0.70 | 0.90 | 1.30 | 1.60 | 2.30 |
| Opening Dimensions | mm | L540 H250 | L610 H510 | L740 H510 | L850 H510 | L910 H540 | L1205 H540 | L1300 H600 | L1450 H700 |
| Output Setting | mm | 15-60 | 15-60 | 15-130 | 15-135 | 15-140 | 15 – 145 | 40-150 | 100-200 |
| Length (A) | mm | 1240 | 1745 | 2000 | 2050 | 2185 | 2185 | 2930 | 3560 |
| Width (B) | mm | 1000 | 1000 | 1150 | 1300 | 1340 | 1620 | 1880 | 2090 |
| Height (C) | mm | 770 | 1100 | 1200 | 1400 | 1390 | 1390 | 170 | 2065 |
| Weight | Ton | 0.75 | 1.6 | 2.3 | 3 | 3.5a | 4.8 | 7.5 | 10.5 |
| Oil Flow | l/min | 90 | 98 | 140 | 160 | 180 | 210 | 320 | 380 |
| Pressure | bar | 200 | 220 | 220 | 220 | 220 | 220 | 250 | 230 |
| Counter | bar | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Max. Production | m³/h | 10 | 23 | 31 | 34 | 42 | 53 | 88 | 120 |
For custom requirements or technical guidance, contact the YG Machinery team directly.
How Does a Hydraulic Crusher Bucket Work?
Understanding the working principle helps operators get the best results from this attachment. The hydraulic crusher bucket connects to the excavator’s auxiliary hydraulic circuit. Once activated, hydraulic oil powers an internal motor, which drives a rotating crusher shaft. Two counter-rotating rotors grip and fracture incoming material. Crushed material then falls through an adjustable output gate at the bottom. Operators can set the gate opening between 15 mm and 200 mm depending on the model. This controls the final particle size of the crushed output. The entire process happens inside the bucket, so no separate crusher machine is needed on-site. This design significantly cuts equipment costs and reduces site complexity.
Key internal components include:
- Crushing rotors — the primary breaking mechanism, made from wear-resistant alloy steel
- Hydraulic motor — converts oil pressure into rotational power
- Adjustable output gate — controls crushed particle size
- Heavy-duty bucket body — built to handle repeated impact and abrasion
Step-by-Step: How to Use a Bucket Crusher for Excavator？
Operating this attachment is straightforward. However, following the correct procedure improves safety and extends service life. Here is a practical step-by-step guide.
1. Pre-Operation Checks
First, verify that your excavator’s hydraulic flow and pressure match the selected YG model. Check the quick-coupler pins and locking mechanism before starting. Inspect all hydraulic hose connections for leaks or damage. Confirm the output gate setting matches your target particle size.
2. Installation and Startup
Connect the bucket to the excavator arm using the standard pin-on or quick-coupler method. Link the two hydraulic hoses to the auxiliary circuit ports on the arm. Start the excavator and run the hydraulic system at low speed for a few minutes. This warms the hydraulic oil and prevents seal damage during initial operation.
3. Crushing Operation
Position the bucket over the material. Lower it slowly to feed material into the opening. Activate the crusher function using the auxiliary control. The rotors will engage and begin breaking down the material. Avoid forcing oversized pieces in. Instead, break them down first with the bucket teeth if needed. Move the bucket steadily to feed a continuous material flow.
4. Post-Operation Maintenance
After each shift, inspect the rotor teeth for wear. Lubricate the shaft bearings according to the maintenance schedule. Check hydraulic oil temperature — overheating shortens seal life. Clean any fine dust or debris from the bucket interior. Regular maintenance keeps the mini excavator crusher bucket performing at full capacity for longer.
What Can a Mini Digger Crusher Bucket Break?
This attachment handles a wide range of materials across multiple industries. Below are the most common applications.
1. Construction and Demolition Waste
Concrete slabs, brick walls, and masonry rubble are typical targets. The mini digger crusher bucket processes these materials directly on-site. Crushed output can be reused as sub-base material, reducing disposal costs.
2. Natural Rock and Stone
Limestone, sandstone, and medium-hardness rock are all within the working range. This makes the attachment well-suited for quarrying, landscaping, and foundation excavation.
3. Asphalt and Road Surfaces
Road renovation projects benefit greatly from on-site crushing. Broken asphalt feeds directly into the bucket, and crushed output can be recycled for road base layers.
4. Mixed C&D Debris
Many job sites generate mixed waste — concrete fragments, brick pieces, and rubble combined. The YG bucket handles this without pre-sorting, saving considerable time and labor.
Additionally, the attachment works well in pipeline trenching, urban demolition, slope reinforcement, and utility infrastructure projects. Its compact size makes it especially practical in confined or space-limited environments.
Buy YG Mini Excavator Crusher Bucket and More Excavator Attachments
YG Machinery supplies excavator attachments to contractors and distributors worldwide. The mini excavator crusher bucket line covers carriers from 8 tons to over 75 tons, with maximum production reaching 120 m³/h on the YG-8 model. All units ship with full technical documentation, and the engineering team provides model selection support before purchase.
Beyond the crusher bucket, YG Machinery also offers a full range of excavator attachments to support diverse job site needs:
- Excavator Orange Peel Grapple
- Drum Cutter Machine
- Hydraulic Shears For Excavator
- Excavator Pile Driver
- Excavator Magnet Attachment
- Hydraulic Pile Breaker
- Rock Splitter For Excavator
- Integrated Rock Drill And Splitter
Each product follows the same engineering standards as the crusher bucket — durable materials, precise hydraulic compatibility, and reliable field performance. Whether you need one attachment or a complete equipment package, YG Machinery can supply and support the full order. Contact the team today to request specifications, pricing, or a customized solution for your project.
