The W6/20A2 cutter, part number 2800874, is a road milling pick engineered for asphalt and concrete pavement milling operations. Used on the milling drum of cold planing machines, this consumable cutting tool removes paved surface material during road rehabilitation, resurfacing, and recycling projects. The W6/20A2 designation refers to a standardized tool-holder interface widely used in the pavement milling industry, where the cutter's 20 mm shank diameter fits corresponding W6-series tool holders on the milling drum. Each cutter features a sintered tungsten carbide tip bonded to a steel alloy body, providing the hardness and toughness required to cut abrasive asphalt and concrete mixtures under continuous high-impact loading.
The cutting tip of the 2800874 milling cutter is produced from tungsten carbide using a powder metallurgy sintering process. In this manufacturing method, tungsten carbide powder is compacted under high pressure and then sintered at elevated temperature to form a dense, homogeneous carbide component with a hardness rating suitable for pavement cutting applications. The sintered carbide tip is bonded to the cutter's steel body, which absorbs and transfers impact forces from the milling drum to the cutting edge.
The steel body is manufactured from an alloy selected for toughness and fatigue resistance, allowing it to withstand the repeated shock loads encountered when the cutter strikes aggregate particles, rebar, or uneven pavement surfaces. Each production batch undergoes hardness testing before shipment to verify that the carbide tip meets the specified hardness range. Material test certificates are available on request for commercial users requiring quality documentation.
The 2800874 W6/20A2 cutter is deployed across a range of cold planing and pavement removal applications, including:
Asphalt pavement milling for highway and municipal road resurfacing projects
Concrete pavement removal in road rehabilitation and bridge deck preparation
Surface texturing and leveling prior to overlay placement
Milling around manholes, expansion joints, and road markings
The 20 mm cutting diameter is suited for standard-depth milling passes commonly specified in road maintenance contracts. Milling contractors operating fleets of cold planing machines use these cutters as routine consumables, replacing them as the carbide tips wear down or sustain damage. The W6/20A2 holder interface allows the cutters to be changed quickly on site, minimizing machine downtime between shifts.
Proper handling and inspection of milling picks directly affect cutting performance and total tooling cost per kilometer of milled pavement. Before each milling shift, verify that all cutters are seated securely in their tool holders and that no shank is bent or cracked. During operation, maintain a feed speed consistent with the machine manufacturer's recommendations for the pavement type and milling depth; excessive feed rates increase impact loading and can accelerate tip fracture.
After each shift, remove accumulated asphalt or concrete residue from the cutter bodies and tool holders, as hardened debris can restrict cutter rotation and cause uneven wear. Inspect each cutter for carbide tip loss, body cracking, or shank deformation. Cutters should be replaced when the carbide tip is worn to the point that cutting efficiency declines, or when any crack is visible in the steel body. Store spare cutters in a dry environment and apply a light rust-preventive coating to the steel bodies for long-term storage. Maintaining a usage log per cutter set helps procurement teams forecast replacement intervals and optimize inventory levels.
Part Name | Cutter |
|---|---|
Part Number | 2800874 |
Quality | High Guarantee |
Weight | About 16.55kg/box |
MNQ | 50pcs/box |
Size | 20mm |
Material | Tungsten Steel |
W6/20A2 is a standardized tool-holder and cutter interface specification used in the asphalt and concrete pavement milling industry. The "20" in the designation corresponds to the cutter's 20 mm shank diameter, which fits W6-series tool holders mounted on the milling drum of cold planing machines.
Each box contains 50 cutters, with a total box weight of approximately 16.55 kg. This packaging format is designed for milling contractors who replace cutters in bulk as part of regular drum maintenance.
The 2800874 cutter is designed for milling asphalt pavement and concrete pavement surfaces, including standard road asphalt, asphalt concrete mixtures, and cement concrete. It is used in road rehabilitation, resurfacing, and surface-leveling applications.
Standard delivery time is 7 to 15 working days from order confirmation, subject to order quantity and production schedule. Business buyers with regular milling operations may contact the sales team to arrange scheduled shipments and volume pricing.
