A milling head for excavator is a hydraulic attachment that replaces the standard bucket. Instead of scooping or breaking, it grinds. A rotating drum fitted with carbide-tipped cutting picks spins at high speed, milling through rock, concrete, asphalt, and frozen soil. The drum cuts a thin layer with each rotation, progressively removing material until the excavation is complete. Unlike a breaker that relies on impact force, an excavator milling head uses continuous rotary cutting action. The material is sheared and ground into small, manageable fragments. This makes the excavator drum cutter ideal for applications where precision matters and where surrounding structures must be protected.
The YG series excavator attachment is powered by the excavator’s hydraulic system. The hydraulic motor drives the drum through a gearbox with a 1:1.3 reduction ratio, which increases cutting force and improves efficiency. This design delivers consistent torque even under heavy loads.
Milling Head for Excavator Parameters:
| 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 |
How a Milling Head for Excavator Works?
A milling head for excavator operates on a simple principle: a rotating drum with cutting picks removes material by shearing.
The excavator’s hydraulic system powers a motor inside the attachment. This motor drives the drum through a gearbox, which reduces speed and increases torque. The drum, fitted with tungsten carbide-tipped picks, rotates at speeds from 80 to 120 RPM depending on the model.
As the drum rotates, the picks contact the material. Each pick cuts a small chip, removing a thin layer with every rotation. The operator controls the cutting depth by moving the excavator arm—pushing harder removes more material, pulling back reduces the cut.
The spiral arrangement of the picks ensures continuous cutting contact. As one pick leaves the material, the next pick engages, maintaining a steady cutting action. The angle of the spiral can be adjusted between 45° and 85° depending on the rock hardness and working conditions.
The material removed by a milling head for excavator is consistently sized. Unlike the irregular fragments produced by breakers, the milling head produces small, uniform particles that can be used as backfill or removed easily from the site.
Milling Head For Excavator vs Hydraulic Breaker
Many project managers struggle to select the proper tool between this excavator drum cutter attachment and hydraulic breakers. The detailed comparison below helps you evaluate equipment according to your project requirements.
- Working efficiency: On mudstone, sandstone and weathered rock, the attachment runs 3 to 5 times faster than hydraulic breakers. Continuous rotary cutting eliminates the pause intervals between hammer strikes seen with breakers, greatly shortening overall construction cycles for soft and medium-hard strata.
- Machining precision: It supports millimeter-level cutting control and can form smooth, regular profiles as required by drawings. Hydraulic breakers only produce irregular broken fragments, and operators cannot shape surfaces accurately. Precision demands make this milling attachment irreplaceable for tunnel shaping and pipeline trenching.
- Vibration influence: Low vibration operation avoids secondary cracking damage to nearby buildings and rock formations. Impact shock from breakers easily spreads outward, which may lead to safety hazards in dense urban construction zones.
- Noise compliance: The continuous cutting process generates lower noise levels. It satisfies construction regulations in zones that enforce strict noise limits, where authorities often restrict or fully ban loud hydraulic breakers during daytime or nighttime working hours.
- Reusability of excavated spoil: Materials cut by the milling head maintain uniform lump size and can be reused as backfill on site. Fragments produced by breakers are usually too fine and loose for secondary construction applications.
Guide To Matching The Right Drum Cutter Attachment Model
Selecting a properly matched model directly improves working efficiency and protects your excavator’s hydraulic system from overload damage. Every specification is engineered to pair with excavators within fixed tonnage brackets.
- Small specifications suit 5 ton to 10 ton mini excavators. This lightweight setup fits urban narrow trenching, residential area renovation and small tunnel auxiliary work. Its compact body moves freely in tight spaces where larger attachments cannot operate.
- Mid-range models fit 10 ton to 21 ton excavators. Operators select this specification most often for municipal engineering, medium-scale tunnel construction and surface mining. It balances cutting power and flexibility to handle most regular construction demands.
- Heavy-duty specifications match 20 ton to 24-ton large excavators. These heavy units deliver stronger torque and are dedicated to large-scale open pit mining, major infrastructure excavation and thick concrete removal projects.
- Operators must check critical indicators including required hydraulic flow, maximum torque and rotation speed before purchase. These parameters must align with the hydraulic output specifications of your carrier machine. Share your excavator model and main construction materials, and our team can provide targeted matching suggestions.
Milling Head For Excavator For Sale
YG Machinery focuses on manufacturing reliable excavator attachments suited for construction sites across the globe. All excavator milling head units pass strict factory testing to guarantee stable performance under continuous heavy workloads. We avoid overcomplicated structures and prioritize convenient maintenance for overseas contractors. We stick to proven industrial design and select qualified raw materials to ensure long service life under harsh working conditions.
If you want a durable excavator milling head to handle precision cutting projects, contact our team now. Provide your excavator tonnage and primary working materials, and we can deliver professional model recommendations and detailed quotations.
