The rotary drum cutter has become the most popular precision construction attachment in the global engineering industry. More contractors and machinery owners search for excavator drum cutters for sale and compare the latest rotary drum cutter prices to upgrade their excavator fleets. As a multi-functional hydraulic milling tool, the rotary drum cutter abandons rough impact breaking mode. It adopts continuous rotary grinding and cutting to process hard rock, concrete, asphalt, and soil layers with low vibration, high precision, and a smooth finished surface. It perfectly solves the construction pain points of traditional equipment and is widely used in municipal, traffic, tunnel, and mining projects. If you are interested, please contact YG immediately for more information.
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YG Rotary Drum Cutter Parameter
| Parameter Items | YG-060 | YG-150 | YG-200 | YG-350 | YG-450 | Dual-motor Milling Machine |
| Applicable Models | Within 6T | 8-18T | 20-35T | 30-40T | 40-50T | 20-35T |
| Total Weight (kg) | 270 | 650 | 1000 | 1550 | 1800 | 700 |
| Milling Width(mm) | 450 | 680 | 720 | 950 | 1050 | 745 |
| Milling Head Diameter (mm) | 370 | 470 | 510 | 650 | 650 | 470 |
| Number of Blades | 44 | 44 | 44 | 44-66 | 44-66 | 44 |
| RPM(r/min) | 0-150 | 0-100 | 0-85 | 0-75 | 0-75 | 75 |
| Traffic(L/min) | 40-60 | 120 | 200 | 320 | 380 | 200 |
| Maximum Pressure (MPa) | 30 | 30 | 30 | 30 | 30 | 30 |
| Maximum Torque (N.m) | 1500 | 6300 | 10600 | 23300 | 25000 | 10000 |
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5 Working Workflow of Excavator Drum Cutter Attachment
1. Pre-operation Inspection and Site Preparation
Before starting the drum cutter attachment, operators need to check the overall equipment status. Inspect the tightness of hydraulic pipelines, the wear degree of carbide cutting picks, the sealing performance of the gearbox, and the firmness of the drum body. Meanwhile, clean the construction site to remove hard foreign objects such as steel bars and iron blocks, and confirm the cutting range and depth to avoid blind operation.
2. Hydraulic System Power Transmission
Start the excavator and turn on the auxiliary hydraulic circuit. The excavator’s main hydraulic pump outputs high-pressure hydraulic oil, which is transmitted to the drum cutter’s hydraulic motor through high-pressure pipelines. The hydraulic energy is converted into mechanical rotation power, and the gearbox reduces the speed and amplifies the torque to provide stable and strong cutting power for the rotary drum.
3. Slow Positioning and Contact Cutting
Operate the excavator arm to slowly lower the rotating drum cutter, make the cutting picks gently contact the working surface, and maintain stable vertical pressure. Different from sudden heavy pressing, slow contact can effectively avoid instantaneous overload and tool damage, ensuring uniform material grinding.
4. Continuous Milling and Progressive Advancement
The high-torque drum rotates continuously, and the staggered carbide picks grind, shear, and crush hard materials layer by layer. Operators control the excavator to advance horizontally at a uniform speed, realizing flat milling, grooving, or slope shaping. For thick concrete or hard rock layers, adopt layered progressive cutting to ensure smooth construction and a neat forming effect.
5. Residue Cleaning and Post-work Maintenance
After completing the milling work, lift the drum cutter first and then close the hydraulic system to stop rotation. Clean the residual stone chips, concrete powder, and sediment on the drum and picks, check the wear of vulnerable parts, and complete simple lubrication and maintenance to prepare for the next operation.
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6 Practical Applications of YG Rotary Drum Cutter
- Urban Municipal Refinement Renovation: The rotary drum cutter is the best choice for urban narrow-space construction. It can mill old asphalt roads, remove partial concrete structures, and renovate building foundations with ultra-low vibration. It will not damage surrounding roads, pipelines, and buildings, fully meeting urban environmental protection and safety construction standards.
- Tunnel Excavation & Contour Shaping: In tunnel engineering, the drum cutter attachment for an excavator accurately trims tunnel contours, removes over-excavation parts, and grinds uneven rock surfaces. It replaces manual trimming and large milling equipment, greatly improving tunnel forming accuracy and construction efficiency, and is widely used in subway and highway tunnel projects.
- Pipeline Trenching & Grooving Construction: For municipal water supply, drainage, and cable pipeline projects, the excavator drum cutter can dig standard flat trenches with neat groove walls and uniform depth. It solves the problem of irregular trench shape and repeated trimming caused by traditional bucket digging, greatly reducing rework rate.
- Slope Protection & Roadside Shaping: It is suitable for highway and railway slope trimming, weathered rock cleaning, and slope surface flattening. The continuous rotary cutting produces smooth, stable slope surfaces, effectively preventing rock collapse and enhancing slope safety and aesthetics.
- Hard Rock & Frozen Soil Grinding: The high-torque excavator drum cutter for sale can grind weathered rock, soft hard rock, and winter frozen soil. It operates reliably with low loss, compensating for the low precision of breakers and the low efficiency of manual grinding.
- Partial Building Demolition & Renovation: For old building partial demolition, wall thinning, and concrete surface polishing, the drum cutter achieves precise partial removal without damaging the overall stable structure of the building, which is irreplaceable for traditional breaking equipment.
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How to Accurately Judge Rotary Drum Cutter Faults (Normal Phenomenon VS Real Failure)
Many operators confuse normal working states with equipment faults, resulting in unnecessary shutdown maintenance and cost waste. Here is a clear and easy-to-understand fault judgment standard for rotary drum cutters.
I. Normal Working Phenomena (Not Faults)
- Slight hydraulic flowing sound and low rotating noise are normal during operation, which are the sounds of normal hydraulic circulation and drum rotation.
- Tiny stone powder and fine debris splashing are normal during milling, belonging to regular material grinding effect.
- Slight drum jitter under heavy load is a normal mechanical reaction, caused by material resistance, and will not damage the equipment.
II. Real Equipment Faults That Need Timely Maintenance
- No rotation or slow rotation of the drum with normal hydraulic pressure. This indicates gearbox wear, hydraulic motor failure, or pipeline blockage, requiring immediate shutdown inspection.
- Abnormal harsh metal friction or collision noise, which means internal gear wear, pick loosening, or foreign object jamming.
- Serious oil leakage at hydraulic joints and gearbox sealing parts, leading to insufficient power and pressure drop.
- Uneven milling effect with obvious grooves and missing cutting, caused by severe pick wear or partial pick falling off.
- Excessive vibration during idle operation, resulting from loose fixing bolts and unbalanced drum body.
III. Daily Quick Inspection Tips
Check pick tightness and wear degree before each work; test hydraulic pipeline sealing; clean residual debris after work; regularly lubricate the gearbox to keep the equipment in optimal working state.
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5 FAQs about YG Rotary Drum Cutter
A: Yes. We have complete models matching 6–50ton excavators. You can select the right model according to your excavator tonnage and hydraulic parameters.
A: Breakers work by high-frequency impact, with large vibration and irregular broken surfaces. The rotary drum cutter adopts continuous rotary grinding, featuring low vibration, high precision, and a smooth finished surface. It is more suitable for fine construction, shaping, and trenching projects, while breakers are only for rough crushing.
A: Very easy. The whole structure is compact with a low failure rate. Daily maintenance only includes cleaning debris, checking picks, and tightening bolts. Regular gearbox oil replacement can ensure long-term stable operation, with extremely low later maintenance costs.
A: No. The operation fully relies on the original excavator control system. After simple training, new operators can master positioning, milling depth, and advancing speed control quickly, with zero professional threshold.
A: When comparing rotary drum cutter price, do not only pursue low price. Focus on overall quality, including high-hardness alloy picks, thickened drum body, and high-quality hydraulic motor. YG factory-direct sales excavator drum cutter for sale balances reasonable price and durable quality, with higher long-term cost performance.
Rotary Drum Cutter Factory Direct Sales-Choose YG Brand
The rotary drum cutter is an indispensable high-precision attachment for modern refined construction. With stable workflow, wide application scenarios, low vibration, and high forming accuracy, they perfectly solve the shortcomings of traditional rough construction equipment.
Whether for municipal renovation, tunnel shaping, pipeline trenching, or slope protection projects, the excavator drum cutter for sale can effectively improve construction quality, reduce rework rate, and save comprehensive project costs.
If you are looking for high-quality drum cutter attachments and professional model matching services, contact YG today. YG provides factory-direct sales prices, complete technical guidance, and reliable global after-sales service to help your projects gain greater market competitiveness and profits!