Chain trencher KTR 65

tractor-mountedfor excavatorsfor civil engineering

Product overview
KEMROC KTR chain trenchers are high-torque trenching attachments for excavators, engineered for precise trenching in asphalt, concrete and medium-hard rock. Driven by two high-torque hydraulic motors, they feature a housing with spoil discharger and sumping aid for efficient removal of milled material. Adjustable cutter chain lengths provide flexible trench widths and maintenance-free cutter chains reduce service needs.

Key benefits

• Dual high-torque hydraulic motors for maximum cutting force
• Housing with discharge auger and sumping aid for effective spoil management
• Adjustable cutter chain length for trench-width flexibility
• Maintenance-free cutter chains for long service life and reduced downtime

Models and selected technical parameters

• KTR 65
  • Compatible rotation unit: KRM50
  • Cutting depth (B): 1000–1800 mm
  • Cutting width (A): 170–350 mm
  • Cutting force at 380 bar: 48 kN
  • Max. oil flow: 230 l/min
  • Max. operating pressure: 400 bar
  • Max. rock compressive strength: 50 MPa
  • Pick box: PH 22 Type
  • Rated power: 65 kW
  • Recommended chain slack: 130 mm
  • Recommended chain speed: 2.0–2.5 m/s
  • Recommended excavator weight: 18–25 t
  • Recommended oil flow at 150 bar: 190 l/min
  • Standard hole pattern: LB30
  • Standard pick: 12/45/38/22 HC
  • Torque at 380 bar: 12100 Nm
  • Weight at max. depth & width: 1700 kg
• KTR 120
  • Compatible rotation unit: KRM60
  • Cutting depth (B): 1000–1800 mm
  • Cutting width (A): 200–450 mm
  • Cutting force at 380 bar: 94 kN
  • Max. oil flow: 360 l/min
  • Max. operating pressure: 400 bar
  • Max. rock compressive strength: 60 MPa
  • Pick box: PH 22 Type
  • Rated power: 120 kW
  • Recommended chain slack: 180 mm
  • Recommended chain speed: 2.0–2.5 m/s
  • Recommended excavator weight: 25–35 t
  • Recommended oil flow at 150 bar: 300 l/min
  • Standard hole pattern: LB30
  • Standard pick: 12/45/38/22 HC
  • Torque at 380 bar: 27200 Nm
  • Weight at max. depth & width: 2700 kg
• KTR 130
  • Compatible rotation unit: KRM60
  • Cutting depth (B): 1000–2000 mm
  • Cutting width (A): 200–450 mm
  • Cutting force at 380 bar: 81 kN
  • Max. oil flow: 360 l/min
  • Max. operating pressure: 400 bar
  • Max. rock compressive strength: 60 MPa
  • Pick box: PH 22 Type
  • Rated power: 130 kW
  • Recommended chain slack: 180 mm
  • Recommended chain speed: 2.0–2.5 m/s
  • Recommended excavator weight: 25–35 t
  • Recommended oil flow at 150 bar: 300 l/min
  • Standard hole pattern: LB30
  • Standard pick: 12/45/38/22 HC
  • Torque at 380 bar: 22400 Nm
  • Weight at max. depth & width: 3000 kg

Main applications

• Pipeline and cable installation — precise profiling and adjustable trench dimensions
• Rock trenching — trenching in medium-hard rock using high-torque motors and durable cutter chains
• Construction and infrastructure — trenching in asphalt and concrete for roadworks and utility installation

Operation & maintenance notes

• Integrated spoil discharge (discharge auger and sumping aid) moves milled material out of the trench and deposits it alongside the trench
• Maintenance-free cutter chains reduce routine servicing; inspect hydraulic motors, drive components and pick wear regularly

Technical specifications

• Trench width: adjustable from 170 to 450 mm (depending on model)
• Maximum trench depth: up to 2000 mm depending on model
• Suitable cutting materials: asphalt, concrete, medium-hard rock
• Drive: two high-torque hydraulic motors
• Spoil discharge: housing with discharge auger and sumping aid
• Cutter chain: adjustable length, maintenance-free
• Operating pressure: up to 400 bar; model-dependent oil flow and power ratings