A drum cutter attachment serves as a high-value excavator upgrade for construction and engineering teams that take on precision surface treatment tasks such as tunnel contour trimming, partial asphalt milling and soft rock layered stripping. Across the global infrastructure maintenance sector, many small and mid-sized contracting teams face a persistent dilemma: large dedicated milling machines require heavy upfront investment and lack flexibility for scattered, small-batch jobs, while conventional hydraulic breakers produce excessive ground vibration and leave rough, uneven finished surfaces. For precision work in dense urban areas or confined tunnel spaces, project teams often struggle to balance construction efficiency, forming accuracy and minimal disturbance to surrounding structures and residents.
Drum Cutter Attachment Technical Specifications:
| Model | YG140 | YG160 | YG180 | YG240 |
| H | 650mm | 820mm | 830mm | 1395mm |
| W | 410mm | 650mm | 780mm | 960mm |
| D | 390mm | 460mm | 480mm | 620mm |
| Excavator weight | 5~10T | 10~15T | 15~21T | 20~24T |
| Max power | 22Kw | 45Kw | 55Kw | 65Kw |
| Speed | 0~120r/min | 0~100r/min | 0~80r/min | 0~90r/min |
| Flow | 40L/min | 100~110L/min | 130~180r/min | 200~250r/min |
| Max Torque | 3200N.m | 5400N.m | 5600N.m | 12800N.m |
Czech Republic: Tunnel Profiling and Renovation
Client Background:
A civil engineering contractor in the Czech Republic was awarded a tunnel renovation project. The tunnel, part of a regional railway line, required profile correction and surface preparation before new lining could be installed. The existing tunnel walls had uneven surfaces, loose rock, and areas of deteriorated concrete that needed removal.
The Challenge:
Tunnel work presents unique challenges. The space is confined, the surrounding rock must remain stable, and the work must proceed without damaging the existing structure. The contractor had previously used hydraulic breakers for similar work, but the results were inconsistent. The breakers created vibration that loosened surrounding rock, and the irregular surfaces required extensive finishing.
The contractor needed a hydraulic drum cutter that could:
- Cut precisely to the required profile without overbreak
- Operate with low vibration to protect the surrounding rock
- Work efficiently in confined tunnel conditions
- Handle both rock and concrete surfaces
The YG Solution :
YG recommended the YG160 drum cutter attachment for the 10-15 ton excavator the contractor was using. The YG160 delivers 45kW of power with 0-100 RPM speed and 5400 N.m of torque. The low vibration characteristic was critical for the tunnel environment, where excessive vibration could compromise the surrounding rock. The 410×650×460mm dimensions allowed the attachment to maneuver in the confined tunnel space.
The carbide cutting picks on the milling head for excavator are designed for easy replacement—each pick can be removed individually without disassembling the drum. The project took approximately two weeks to complete, with the YG160 performing consistently throughout.
Client Feedback:
“The YG drum cutter attachment gave us control we couldn’t get with breakers,” the project manager said. “We could cut exactly to the line without damaging the surrounding rock. The vibration was minimal—we didn’t have to worry about destabilizing the tunnel. We’ve already ordered a second unit for our next tunnel project.”
Peru: Narrow-Vein Mining
The Customer :
A mining contractor operating in Peru was developing a narrow-vein copper deposit. The ore body was less than two meters wide, making it difficult to access with conventional mining equipment. The contractor needed a solution that could extract ore efficiently from the narrow vein without diluting the material with surrounding rock.
The Challenge:
Narrow-vein mining presents unique challenges. The space is extremely confined, and selective extraction is critical. Traditional drilling and blasting methods often cause overbreak, diluting the ore with waste rock. The vibration from blasting can also destabilize the surrounding rock, creating safety hazards.
The contractor had tried various methods—hand-held rock drills, small excavators with breakers, and manual extraction. None delivered the combination of precision and productivity required. The contractor needed a hydraulic drum cutter that could cut selectively within the narrow vein, operate with minimal vibration to maintain ground stability, work efficiently in confined spaces, and produce consistently sized material for processing.
The YG Solution:
YG recommended the YG180 drum cutter attachment for the 15-21 ton excavator the contractor was using. The YG180 delivers 55kW of power with 0-80 RPM speed and 5600 N.m of torque. The low vibration characteristic was essential for maintaining ground stability in the narrow vein. The 780×830×480mm dimensions allowed the excavator milling head to work within the confined space. The operator could position the milling head for excavator precisely against the ore face, cutting selectively to extract ore while leaving waste rock in place.
The project ran for approximately three weeks, with the drum cutter attachment maintaining consistent performance throughout.
Client Feedback:
The contractor extracted the ore with minimal dilution. The selective cutting capability meant the contractor could leave waste rock in place while extracting the ore.
“The YG drum cutter attachment changed how we work in narrow veins,” the site superintendent said. “We can cut exactly where we need to, without taking waste rock. The vibration is low, so the ground stays stable. We’re planning to use this attachment on our other narrow-vein projects as well.”
Key Configurations For Road Milling Work
Road milling projects prioritize work efficiency and uniform milling depth, so configurations with medium-high rotation speed are more suitable.
- Model selection: For large-area municipal road projects, choose wide-width models. For scattered small patching work, narrow and flexible models are more practical, as long as they match your existing excavator.
- Pick angle adjustment: For asphalt pavement, choose a medium angle of 50°–60°, which balances milling efficiency and pick wear resistance.
- Operation parameter setting: Adjust walking speed according to asphalt thickness. Speed up for thin surface milling, and slow down for deep disease treatment.
General Selection Tips For Mixed Scenarios
If your team handles multiple types of work like the two clients in the cases, the horizontal basic model is the most cost-effective choice. You can adapt to different materials by adjusting pick angle and walking speed. If trench excavation accounts for a high proportion of your work, the chain-style model with blind-spot-free design will bring higher efficiency.
If you are comparing different specifications and looking for a reliable excavator drum cutter for sale, contact us with your excavator model and typical materials. We will recommend the right excavator drum cutter for sale for your operation.
