Chain trencher KTR 120

trackedfor excavatorsfor civil engineering

Product overview
KEMROC KTR 120 is a hydraulic chain cutter attachment for excavators, engineered to cut rock, concrete and other hard materials. It is intended for trenching, profile cutting and preparatory rock removal on excavators within the recommended weight class. Verify carrier lifting capacity and hydraulic supply before installation.

Key specifications

• Recommended excavator weight: 25 – 35 t (55,000 – 75,000 lb)
• Rated power: 120 kW (160 hp)
• Cutting Depth (B): 1000 – 1800 mm (40 – 70 inch)
• Cutting Width (A): 200 – 450 mm (8 – 17.5 in)
• Recommended chain speed: 2.0 – 2.5 m/s (6.6 – 8.2 ft/s)
• Recommended oil flow at 150 bar: 300 l/min (80 gal/min)
• Max. oil flow: 360 l/min (95 gal/min)
• Max. operating pressure: 400 bar
• Torque at 380 bar: 27,200 Nm (20,100 lbf·ft)
• Cutting force at 380 bar: 94 kN (21,100 lbf)
• Max. rock compressive strength: 60 MPa (8,700 psi)
• Weight at max. depth & max. width: 2,700 kg (5,950 lb)
• Pick box: PH 22 Type
• Standard pick: 12/45/38/22 HC
• Standard hole pattern: LB30
• Compatible rotation unit (KRM): KRM60
• Recommended chain slack: 180 mm (7.1 inch)

Compatibility & installation

• Compatible rotation unit: KRM60 (ensure match with carrier mounting)
• Pick box: PH 22 Type; standard pick set 12/45/38/22 HC
• Standard hole pattern: LB30 — check adapter plate and mounting bolts
• Hydraulic requirements: supply oil flow and pressure per specifications; observe recommended and maximum flow limits
• Verify carrier counterweight and lifting capacity before operation

Applications

• Trenching and channel cutting in rock and concrete
• Roadworks, pipeline and cable trench preparation
• Quarry face profiling and preparatory removal
• Demolition of reinforced concrete in confined areas

Maintenance & safety

• Inspect chain, picks and pick box regularly; replace worn picks with specified types
• Operate within recommended oil flow, pressure and chain speed to avoid premature wear
• Ensure operator training and use of PPE during cutting operations
• Follow manufacturer's maintenance schedule and use approved spare parts