Excavator hydraulic milling cutter EK 160

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Product overview
The EK 160 Heavy Excavator Chain Cutter is intended for continuous heavy-duty cutting where ground or material resistance is consistently high. Designed for sustained operation and torque stability, it mounts on 35–50 t excavators and runs at a controlled speed (≈60 rpm). The unit handles materials up to 120 MPa uniaxial compressive strength and combines a substantial structural mass (3,650–3,800 kg) with a large torque reserve to provide repeatable cutting behaviour in high-resistance environments.

Benefits

• Reduced energy use versus inefficient swinging or impact methods (up to 40% in comparable conditions)
• Proven cutting capability on high-resistance rock and reinforced concrete up to 120 MPa UCS
• Durability for abrasive and high-contact-pressure operations
• Hydraulic layout optimised for sustained heavy-duty cycles (see recommended oil flow ranges)

Key features & technical advantages

• High torque and cutting force: torque and force ratings support stable penetration in dense rock and reinforced materials
• Controlled mechanical speed for stability: reduced rotational speed maintains consistent chain engagement with lower vibration and shock than impact tools
• Optimised structural configuration: attachment mass and geometry increase stability under high cutting loads
• Durable pick & chain system engineered for abrasive conditions

Performance highlights

• Operating principle: continuous chain cutting between drums distributes force gradually and reduces shock
• Recommended operating speed: approx. 60 rpm (some technical displays reference 65 rpm)
• Designed for sustained, controlled cutting cycles rather than short aggressive bursts

Caractéristiques / spécifications techniques

• Model: EK 160
• Recommended excavator weight: 35 – 50 t (75,000 – 110,000 lb)
• Rated power: 150 kW (200 hp)
• Drum cutter length (A): 2150 mm (85 in)
• Cutting width (B) options: 800 | 900 | 1000 mm (32 | 35 | 40 in)
• Cutter drum diameter (C): 850 mm (33 in)
• Recommended rotation speed: 60 rpm (technical references also list 65 rpm)
• Recommended oil flow: nominally 290–330 l/min (alternative technical display: 350 l/min)
• Max. oil flow: 425 l/min
• Max. operating pressure: 400 bar
• Torque (stated maximum): up to 34,000 Nm
• Torque at 380 bar (technical value): 32,700 Nm
• Maximum cutting force (stated): up to 80 kN
• Cutting force at 380 bar (technical value): 77 kN
• Max. rock compressive strength: 120 MPa
• Weight variants: 3,650 | 3,700 | 3,800 kg
• Pick box / type: PH 32 HD
• Number of picks in cutter drums: 44 | 48 | 56 pcs
• Number of picks in the cutter chain: 63 pcs
• Standard pick: 19/75/70/30 Q (ER 19/75/70/30 Q)
• Standard hole pattern: LB40
• Compatible rotation unit (KRM): KRM70