Nachi PCR-3B PCL-120 — hydraulic swing motor with planetary gearbox
Nachi PCR-3B and PCL-120 are hydraulic swing motors with an integrated planetary gearbox for mini excavators in the 3.5–5 t class. They occupy the position between the PCR-2B and PCR-4B in the Nachi line, delivering higher output torque than the smaller sizes in the series. Swash plate design with planetary gearbox in a single housing. The gearbox operates on working hydraulic oil with no separate lubricant change required. The built-in shockless relief valve ensures smooth swing start-up and deceleration. The parking brake is integrated into the motor.
Full model range in the section Nachi PCR series.
Installed in equipment
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Case
- CX50B — crawler excavator
- CX55C — crawler excavator
- CX56B — crawler excavator
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IHI
- IS20 — crawler excavator
- IS55 — crawler excavator
- IS60 — crawler excavator
-
JCB
- 85Z — crawler excavator
-
Kobelco
- SK35 — crawler excavator
- SK50 — crawler excavator
- SK60SR-8 — crawler excavator
-
Komatsu
- PC40MR — crawler excavator
- PC50 — crawler excavator
- PC50-7 — crawler excavator
- PC55-7 — crawler excavator
- PC56-7 — crawler excavator
-
Sany
- SY75 — crawler excavator
-
Volvo
- EC45 — crawler excavator
- EC55B — crawler excavator
-
Yanmar
- VIO45 — crawler excavator
- VIO50 — crawler excavator
- VIO55 — crawler excavator
-
Yuchai
- YC35 — crawler excavator
OEM numbers PCR-3B PCL-120
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Nachi
- PCR-3B-12A
- PCR-3B-12A-P-9057A
- PCL-120-18B
- PCL-120-18B-1S3-8620A
- PCL-120-18B-1FS2-8284A
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Case
- PY15V00014F1
Spare parts for Nachi PCR-3B PCL-120
- Cylinder block Rotor
- Ball guide
- Disk Spring
- Friction Plate
- Coupling of drive shaft
- Cylinder block press pin
- Roller Bearing
- Cradle Bearing Set
- Retainer Plate
- Swash plate (cam rocker)
- Piston
- Rotor Spring
- Control Valve Regulator
- Seal kit motor
- Shaft Seal
- Servo Piston
- Drive Shaft motor
- Pressure Override Valve
- Valve plate
- Ball guide washer
- Washer
Repair and service PCR-3B PCL-120
We accept Nachi PCR-3B PCL-120 motors for repair: full diagnostics of hydraulic parameters, assessment of wear of pistons and cylinder block, seal inspection and bench testing after restoration.
Contact us — we will select spare parts and repair PCR-3B PCL-120 with warranty.
Technical specifications verified by the Aspect Plus technical catalog.