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Rotary hydraulic drive system KRX 120for drilling rigs
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Characteristics
- Type
- rotary
- Applications
- for drilling rigs
Description
Product overview
Key specifications
Performance & capabilities
Compatibility & installation
Use cases & recommended conditions
Weight & dimensions
Ordering information
- KRX 120 is a powertool drive designed to operate milling, cutting and drilling attachments on medium‑to‑large excavators.
Key specifications
- Recommended excavator weight: 25 – 40 t
- Rated power: 120 kW (160 hp)
- Torque at 380 bar: 29,800 Nm
- Max. operating pressure: 400 bar
- Max. idle oil flow: 360 l/min
- Recommended idle oil flow: 190 – 320 l/min (alternate entry: 175 – 295 l/min)
- Recommended idle rpm: 65 rpm
Performance & capabilities
- Cutting force at 380 bar: 114.4 kN
- Standard cutter head: length 430 mm, diameter 520 mm
- Drilling diameters: min 270 mm — max 1300 mm
- Drilling depths: up to 4,000 mm at max diameter; up to 7,000 mm at min diameter
- Max. uniaxial compressive strength of ground: 50 MPa
Compatibility & installation
- Hex connection (standard): 160 mm
- Standard hole pattern: LB30
- Length of drive unit: 842 mm
- Pick box type: PH 32HD
- Number of picks (standard): 25
- Standard picks: 17/75/70/30 Q (round shaft) and DT 22/90/70/30 HQ (dragon tooth)
Use cases & recommended conditions
- Suitable for heavy milling, trenching, surface profiling and rotary drilling on rock, asphalt and mixed ground within specified strength limits
- Recommended for excavators of 25–40 t class with hydraulic supply matching the indicated flows and pressures
Weight & dimensions
- Weight without attachment: 540 kg
- Weight of milling attachment: 142 kg
- Total weight (with attachment): 682 kg
- Length of standard cutter head: 430 mm; diameter: 520 mm
Ordering information
- Model name: KRX 120
- Product family: KRX Powertool drives
- Pick box: PH 32HD — number of picks: 25
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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.