
Jeil JMF250 — axial piston swing motor 250 cm³
Jeil JMF250 is a fixed displacement axial piston hydraulic swing motor manufactured by Jeil Hydraulics (South Korea). The largest frame size of the JMF series, designed for heavy crawler excavators in the 34–42 tonne class with high swing platform torque requirements. The design incorporates a built-in spring-applied, hydraulically released brake, a brake delay valve and an anti-reverse valve. Installed in Doosan, Hyundai and Volvo excavators.
Full model range in the section Jeil JMF series
Technical specifications JMF250
- Displacement: 250 cm³/rev
- Max. output torque: 24,858 Nm
- Max. speed (gearbox output): 22.0 rpm
- Max. flow: 288 l/min
- Normal pressure: 320 bar
- Peak pressure: 385 bar
- Brake torque (motor): 1049 Nm
- Gearbox ratio: 15 (Module 14)
- Weight: 440 kg
JMF250 model code structure
Example: JMF250 - R - R - 04 - 05 - 01 - 01 - 1 - 17 - 00 - A - 00 - A
- JMF250 — series type (Swing Drive Motor) and displacement (250 cm³/rev)
- Motor flange: R — integrated gearbox; P — motor only without gearbox
- Output shaft: R — gearbox shaft; S — spline without gearbox
- Ports: 04 — JIS Flange Type I Ø20; 05 — JIS Flange Type I Ø25
- Relief valve setting: 01=190 bar, 02=220 bar, 03=230 bar, 04=240 bar, 05=250 bar, 06=280 bar, 09=320 bar
- Parking brake: 00 — none; 01 — built-in
- Brake release valve: 00 — none; 01 — 4 bar; 03 — 8 bar; 05 — 13 bar
- Anti-reverse valve: 0 — none; 1 — built-in
- Gear ratio: 17, 19, 20, 22, 24
Installed in equipment
-
Doosan
- DX340LC — Crawler excavator
- DX350LC — Crawler excavator
- DX380 — Crawler excavator
- DX420LC — Crawler excavator
- S330LC-V — Crawler excavator
- S340LC-V — Crawler excavator
- S400LC-V — Crawler excavator
- S420LC-V — Crawler excavator
-
Hyundai
- R360LC-7 — Crawler excavator
- R360LC-7A — Crawler excavator
- R370LC-7 — Crawler excavator
- R380LC-9A — Crawler excavator
- R430LC-9 — Crawler excavator
- R430LC-9A — Crawler excavator
- R800LC-7A — Crawler excavator
- R800-7AFS — Crawler excavator
- R800LC-9 — Crawler excavator
- R800LC-9FS — Crawler excavator
- R1200-9 — Crawler excavator
-
Volvo
- EC360 — Crawler excavator
- EC380 — Crawler excavator
- EC700 — Crawler excavator
OEM numbers JMF250
-
Doosan
- K1007545
- K1007543A
- K1004822E
- K1004824B
- K1004824C
- K1004824E
- K1004825B
- 170301-00061
- 170301-00062
- 170301-00062A
- 170301-00062B
- 170301-00062C
- 2401-9309A
-
Hyundai
- 31NA-10160
- 31NA-10170
- 31QC-10130
- 31QC-10130AR
- 31QA-10130
- 31QA-10130AR
- 31ND-13130
- 31ND-13130AR
Spare part numbers JMF250
-
Doosan
- 1.131-00072
- 1.181-00103
- 1.426-00010
- 2.109-00176
- 420-00112
- 1.131-00070
- K9000403
- K9000924
- K9000925
- K9000926
- K9000927
- K9000928
- K9000929
- K9000930
- K9000931
- K9000932
- K9000933
- K9000934
- K9000935
- K9000936
- K9000937
- K9000938
- K9000939
- K9000940
- K9000941
- K9000942
- K9000943
- K9000944
- K9000945
- K9000946
- K9000947
- K9000948
- K9000949
- S2206161
- S2227661
- S5711031
- S6510850
- S8000071
- S8000111
- S8000121
- S8000151
- S8000181
- S8000241
- S8000261
- S8000291
- S8000311
- S8060240
- S8060310
- 2180-1216D154
- 2180-1216D155
Spare parts for Jeil JMF250
- Cylinder block Rotor
- Ball guide
- Disk Spring
- Coupling of drive shaft
- Cylinder block press pin
- Roller Bearing
- Cradle Bearing Set
- Retainer Plate
- Swash plate (cam rocker)
- Piston
- Rotor Spring
- Shaft Seal
- Valve plate
- Ball guide washer
- Washer
- Pressure Override Valve
- Seal kit motor
- Control Valve Regulator
- Servo Piston
- Drive Shaft motor
- Friction Plate
Repair and service JMF250
Diagnostics and repair of motor Jeil JMF250: monitoring operating pressure and leaks, inspection of the piston group and valve plate, and bench testing after repair.
Contact us — we will repair motor JMF250 and select genuine spare parts.
Technical specifications verified by the Aspect Plus technical catalog.