HKM DC20 Drum Cutter

HKM DRUM CUTTERS – DC20

HKM DC20 Drum Cutter is a professional drum cutting attachment for 15–20 ton excavators, designed to deliver high torque and consistent power transfer in demanding applications. With an operating weight of 1,370 kg and torque of up to 15,000 Nm, it provides strong productivity in heavy-duty excavation and profiling work.

DC20 operates across a broad 140–220 l/min oil-flow range and requires 80 kW of power, making it a robust, reliable and low-vibration solution for major infrastructure and tunneling projects. Its 64 picks provide consistent fragmentation even on abrasive surfaces and support the production of reusable backfill material.

With its wide drum arrangement and durable gearbox, DC20 can perform powerful yet controlled excavation in mines, tunnels and thick concrete surfaces where high cutting force and precision are both required.

A 570 mm drum diameter, 380 mm single drum width and 910 mm cutting width provide broad surface coverage for tunneling, wide trenching and heavy excavation. The drum dimensions allow a wider working path to be processed in hard and abrasive ground, supporting higher productivity in infrastructure and mining applications.

KEY FEATURES

• 15,000 Nm torque for demanding heavy-duty applications
• Efficient and homogeneous cutting with 64 picks
• Wide oil-flow range for compatibility with high-flow hydraulic systems
• Durable gearbox assembly for long service life
• Low noise and vibration for improved operator comfort

APPLICATION AREAS

• Tunneling and wide trench excavation
• Thick concrete and frozen-ground excavation
• Mine-site preparation
• Infrastructure and road construction projects

OPTIONAL FEATURES

• Underwater Kit: Insulated system with high corrosion resistance
• High Abrasion Protection Kit: Hardox™ wear protection with a filtered system
• Extended Reach Module: +500 mm extension tube with angled power-transmission support

TECHNICAL SPECIFICATIONS

Frequently Asked Questions (FAQ)

Q: Which excavators is the HKM DC20 Drum Cutter compatible with?
A: The DC20 is designed for excavators and suitable hydraulic carriers in the 15–20 ton operating class. Final compatibility should also be verified against the carrier’s hydraulic flow, operating pressure and mounting dimensions.

Q: What hydraulic flow and operating pressure are required for the DC20?
A: The DC20 operates with an oil-flow range of 140–220 l/min and a maximum operating pressure of 315 bar. Required power is 80 kW. For optimum performance, the carrier’s hydraulic specifications should fall within these operating requirements.

Q: What are the single drum width and cutting width of the DC20?
A: The DC20 has a single drum width of 380 mm and a total cutting width of 910 mm. These dimensions are important when selecting the right model for the available working width and required surface profile.

Q: What applications can the HKM DC20 Drum Cutter be used for?
A: The DC20 can be used for tunneling, wide trench excavation, thick concrete and frozen-ground excavation, mine-site preparation, infrastructure and road construction. It provides controlled, low-vibration cutting and excavation; final suitability should be assessed according to material properties and site conditions.

🤔 Not Sure Which Drum Cutter to Choose?

Send us your excavator make/model and working conditions to identify the most suitable drum cutter for your application. Our sales team can help you select the right model based on carrier weight, hydraulic flow and application requirements.