YG series excavator rock crusher bucket is a jaw-type crushing attachment purpose-built for excavator carriers, designed to replace traditional separate mobile crusher units for small to mid-scale crushing projects. Unlike generic third-party crusher buckets on the market, the full YG line maintains a consistent 25MPa working pressure across all three models, which perfectly aligns with the standard hydraulic output of most mainstream 10–40 ton excavators; no extra hydraulic modification is required for compatible carrier machines. Every unit is constructed with high-abrasion quenched manganese steel for the jaw plate and bucket body to withstand continuous high-load crushing of hard granite, reinforced concrete, and recycled asphalt. The entire attachment mounts directly to your excavator’s standard quick hitch.
Specifications of the Excavator Rock Crusher Bucket
| Model | YG-P15 | YG-P25 | YG-P35 |
| Suitable Excavator | 10-20T | 20-30T | 30-40T |
| Capacity | 0.35m³ | 0.7m³ | 0.8m³ |
| Working Pressure | 25MPa | 25MPa | 25MPa |
| Working Flow Rate | 90L/min | 145L/min | 235L/min |
| Inlet Size | 550*450mm | 750*500mm | 950*500mm |
| Outlet Size | 15-120mm | 15-120mm | 15-120mm |
| Overall Dimensions | 1820*1080*1200mm | 2300*1400*1400mm | 2400*1690*1600mm |
| Weight | 1500kg | 3000kg | 4000kg |
Technical Advantages
First, the use of high-strength, wear-resistant steel (such as Hardox or equivalent) in the jaw plates and the main body ensures a prolonged service life, even when processing highly abrasive materials like granite or basalt. This directly lowers your cost-per-ton processed.
Second, the optimized crushing chamber geometry guarantees a consistent reduction ratio. The hydraulic system is precisely calibrated to deliver maximum torque while protecting the carrier excavator’s main hydraulic pump from pressure spikes. The 25MPa working pressure across all models ensures a formidable crushing force, allowing the bucket to break down heavily reinforced concrete and hard natural stone without stalling.
Third, the design allows for quick and easy adjustment of the output size. With an adjustable outlet ranging from 15mm to 120mm, catering to different backfill, drainage, or base course requirements without needing to swap machinery.
Configuration & Working Principle
All YG series rock crusher buckets operate on a proven eccentric jaw crushing mechanism:
- The operator maneuvers the bucket to scoop raw material into the wide rectangular inlet; no manual feeding is needed.
- The hydraulic motor drives the eccentric shaft to move the dynamic jaw plate against the fixed jaw plate, applying continuous high-pressure compression to break down hard rock and concrete.
- The adjustable gap between the two jaw plates controls the final output material size, with all three YG models supporting a 15mm to 120mm adjustable discharge range.
- Crushed qualified aggregate flows out directly from the bottom outlet, ready for immediate reuse as backfill, road base, or secondary construction material.
Wide Applications of the Excavator Rock Crusher Bucket
Urban Demolition Waste Recycling
Process crushed concrete and brick waste directly on old building demolition sites, turning waste material into usable backfill on the spot, eliminating the cost of hauling tons of construction waste to landfills.
Rural Road Construction Projects
Crush local on-site rock into qualified road base aggregate, no need to transport aggregate from distant quarries, drastically cutting project material costs for remote infrastructure jobs.
Quarry Small-Scale Aggregate Production
For small to mid-sized quarries that do not need a full stationary crushing line, the YG crusher bucket can produce finished aggregate directly alongside your excavator, with minimal initial equipment investment.
Landscaping & Site Grading
Crush excess rock and excavated stone on residential and commercial development sites to produce graded material for foundation backfill, reducing total site clearing time by 40% on average.
Model Differences and Performance Comparison
To suit different excavator classes and project scales, our excavator rock crusher bucket is available in three primary configurations: the YG-P15, YG-P25, and YG-P35. Selecting the correct model hinges on matching the attachment’s weight and hydraulic demands to your carrier machine.
1. YG-P15 (Designed for 10-20T Excavators)
This compact unit is ideal for mini to midi excavators. It has a capacity of 0.35 m³ and weighs 1500kg. It requires a hydraulic flow of 90L/min. With an inlet size of 550*450mm and an overall dimension of 1820*1080*1200mm, it is perfectly suited for urban demolition and tight job sites where maneuverability is paramount.
2. YG-P25 (Designed for 20-30T Excavators)
The mid-range workhorse. It offers a capacity of 0.7 m³ and weighs 3000kg. The working flow rate increases to 145L/min to maintain optimal crushing speed. The inlet size expands to 750*500mm, allowing larger feed material. Its overall dimensions are 2300*1400*1400mm. This model is a favorite for general demolition and medium-scale quarrying.
3. YG-P35 (Designed for 30-40T Excavators)
The heavy-duty flagship. Built for high-volume production, it has a capacity of 0.8 m³ and weighs 4000kg. It demands a substantial hydraulic flow of 235L/min. The massive 950*500mm inlet accepts large boulders, and the overall dimensions reach 2400*1690*1600mm. It is engineered for continuous operation in harsh mining and large-scale aggregate recycling environments.
Note: Despite the significant differences in size, capacity, and flow requirements, all three models consistently operate at a working pressure of 25MPa and deliver a highly adjustable output size of 15- 120 mm.
FAQ of Excavator Rock Crusher Attachment
Q: How do I know if my excavator can handle a crusher bucket?**
A: You must check your excavator’s operating weight and auxiliary hydraulic flow rate (L/min). Match your machine’s weight to the suggested tonnage (e.g., 20-30T for the YG-P25) and ensure your hydraulic pump can supply the required flow (145L/min for the YG-P25). Consult your excavator’s spec sheet or contact our engineers for assistance.
Q: Can I adjust the output size of the crushed material?
A: Yes. All our models feature an adjustable outlet ranging from 15mm to 120mm. This is typically adjusted by adding or removing shims at the toggle plate assembly, allowing you to customize the final product gradation.
Q: Is it possible to crush heavily reinforced concrete?
A: Yes, our crusher buckets are designed to handle reinforced concrete. However, the steel rebar must be able to separate from the concrete. If a large, un-crushable piece of steel enters, the toggle plate is designed to break to protect the main bearings.
Q: What is the recommended maintenance schedule?
A: Daily checks should include inspecting hydraulic hoses for leaks and checking the jaw plates for excessive wear. Greasing of the eccentric shaft bearings should be done regularly according to the manual (usually every 8-10 hours of operation). Jaw plates can be rotated or replaced when the teeth are worn down.