Parker F12-250 high pressure hydraulic motor

SERIES : F12

BRAND : For Parker

Model Size :F12-250

Displacement : 250cm3/rev

Speed : 2700rpm

Maximum Pressure : 480bar

Nominal Pressure : 420bar

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Product Details
Product Model
FAQ

The Parker F12-250 is a bent-axis, fixed-displacement heavy-duty motor. The "250" designation signifies its displacement of approximately 250 cc/rev, making it one of the larger frame sizes in the F12 family.

The Bent-Axis Advantage

Unlike traditional inline axial piston motors, the bent-axis design sets the cylinders at an angle relative to the drive shaft. This geometric layout offers several distinct mechanical advantages:

Higher Volumetric Efficiency: The spherical piston rings provide optimum sealing, minimising internal leakage even at extreme pressures.

Massive Torque Generation: The angled piston stroke maximises mechanical leverage, delivering high startup torque.

Fewer Moving Parts: By eliminating complex swashplate mechanisms, the F12 series reduces internal friction and wear points.

Key Features and Benefits of the F12-250

1. Extreme Pressure Capabilities

The F12-250 thrives where other motors fail. With a continuous pressure rating of 420 bar, it is custom-built for high-pressure closed and open-circuit systems. This allows operators to extract maximum power output without risking premature component fatigue.

2. High Speed and Power Density

Thanks to lightweight pistons and a highly optimised valve plate design, the F12-250 can achieve remarkably high rotational speeds for a motor of its size class. The resulting power-to-weight ratio ensures that machinery remains agile and compact without sacrificing raw pulling or turning force.

3. Thermal Shock Resistance

Industrial and mobile machinery often experience rapid temperature spikes. The F12 series utilises proprietary advanced materials and precision tolerances that allow the motor to endure sudden thermal shifts without seizing or scoring the cylinder barrels.

Real-World Applications: Where the F12-250 Excels

The versatility of the Parker F12-250 makes it a staple across several punishing industries. Wherever high torque and relentless duty cycles are required, you will likely find this motor at work.

Marine and Offshore Winches

On maritime vessels and oil rigs, winches must handle massive loads under corrosive, unpredictable conditions. The F12-250 provides the precise control and high starting torque required to lift anchors, tension mooring lines, or operate subsea cranes smoothly.

Construction and Mining Equipment

From heavy-duty track drives on excavators to the rotary heads of drilling rigs, mining and construction environments demand components that ignore dust, vibration, and extreme shock loads. The robust bearing design of the F12-250 easily handles heavy external shaft loads.

Shredders and Recycling Plants

Industrial shredders encounter sudden, violent torque spikes when processing scrap metal or solid waste. The F12-250's high peak pressure limit (480 bar) allows it to power through stubborn materials without stalling out or damaging the hydraulic loop.

Maintenance and Longevity: Best Practices

To ensure your Parker F12-250 achieves its multi-thousand-hour operational lifespan, adhere to strict system hygiene practices:

Fluid Filtration: Maintain a cleanliness level of at least ISO 4406 20/18/13. High-pressure bent-axis motors rely on a pristine fluid film to protect internal moving components.

Case Drain Management: Never operate the motor without filling the housing with hydraulic fluid first. Ensure the case drain line is correctly routed back to the reservoir with minimal backpressure to prevent shaft seal blowouts.

Regular Inspections: Monitor for changes in case drain flow over time. A sudden increase in case drain leakage is a primary indicator of internal piston wear before a catastrophic failure occurs.

For more information on the F12-250 hydraulic motor, please visit https://www.baolilaihydraulic.com/product/.

Specifications

Frame size F12	-030	-040	-060	-080	-090	-110	-125	-152	-162	-182	-250
Displacement (cm³/rev)	30.0	40.0	59.8	80.4	93.0	110.1	125.0	149.8	163.1	179.8	242
Operating pressure
max intermittent (bar)	480	480	480	480	420	480	480	480	480	480	420
max continuous (bar)	420	420	420	420	350	420	420	420	420	420	350
Motor operating speed [rpm]
max intermittent	7300	6700	5800	5300	5000	4800	4600	4000	4000	4000	3000
max continuous	6700	6100	5300	4800	4600	4400	4200	3700	3700	3700	2700
min continuous	50	50	50	50	50	50	50	50	50	50	50
Max pump self-priming speed
L or R function: max (rpm)	3150	2870	2500	2300	2250	2200	2100	-	-	-	1500
Motor input flow
max intermittent (l/min)	219	268	347	426	465	528	575	608	648	728	726
max continuous (l/min)	201	244	317	386	428	484	525	547	583	655	653
Drain temperature, max (°C)	115	115	115	115	115	115	115	115	115	115	115
min (°C)	-40	-40	-40	-40	-40	-40	-40	-40	-40	-40	-40
Theoretical torque at 100 bar (Nm)	47.6	63.5	94.9	127.6	147.6	174.8	198.4	241	257	289	384.1
Mass moment of inertia
(x10^-3) (kg m²)	1.7	2.9	5	8.4	8.4	11.2	11.2	21	21	21	46
Weight (kg)	12	16.5	21	26	26	36	36	40	40	40	77

Selection Table

F12-250 hydraulic motor
Model No.	Model Code
3787181	F12-250-QF-SV-D-000-000-0
3789250	F12-250-QF-SV-D-000-0000-P0
3789250	F12-250-QF-SV-D-000-000-P
3720870	F12-250-QF-SV-D-406-0000-00
3720274	F12-250-QF-SV-D-447-0000-00
3720717	F12-250-QF-SV-D-502-MUVR-PT
3787182	F12-250-QF-SV-F-000-000-0
3787182	F12-250-QF-SV-F-000-0000-00
3789835	F12-250-QF-SV-F-000-0000-0T
3789242	F12-250-QF-SV-F-000-0000-P0
3720271	F12-250-QF-SV-F-000-0000-PT
3723780	F12-250-QF-SV-F-000-0000-PT
3789242	F12-250-QF-SV-F-000-000-P
3789835	F12-250-QF-SV-F-209-000-0
3784751	F12-250-QF-SV-F-406-000-0
3720619	F12-250-QF-SV-F-406-0000-00
3720365	F12-250-QF-SV-F-501-MUVR-P0
3788912	F12-250-QF-SV-K
3787184	F12-250-QF-SV-K-000-000-0
3787184	F12-250-QF-SV-K-000-0000-00
3784551	F12-250-QF-SV-K-000-0000-0T
3788847	F12-250-QF-SV-K-000-0000-P0
3722386	F12-250-QF-SV-K-000-0000-PT
3788847	F12-250-QF-SV-K-000-000-P
3784551	F12-250-QF-SV-K-209-000-0
3787185	F12-250-QF-SV-K-309-000-0
3788798	F12-250-QF-SV-K-378-000-0
3788798	F12-250-QF-SV-K-378-0000-00
3784968	F12-250-QF-SV-K-397-0000-PX
3721084	F12-250-QF-SV-K-503-MUVR-0T
3721828	F12-250-QF-SV-K-503-MUVR-PT
3787187	F12-250-QF-SV-S-000-000-0
3788838	F12-250-QF-SV-S-000-0000-P0
3788838	F12-250-QF-SV-S-000-000-P
3789180	F12-250-QF-SV-S-384-000-0
3720562	F12-250-QF-SV-S-462-0000-00
3720391	F12-250-QF-SV-S-501-MUVR-P0
3788851	F12-250-QF-SV-T-000-000-0
3788851	F12-250-QF-SV-T-000-0000-00
3789576	F12-250-QF-SV-T-000-0000-P0
3721337	F12-250-QF-SV-T-000-0000-PT
3789576	F12-250-QF-SV-T-000-000-P
3788777	F12-250-QF-SV-T-378-0000-00
3787186	F12-250-QF-SV-X-324-000-0
3722108	F12-250-QF-SV-X-324-0000-P0
3723738	REPAIR SPARE KIT F12-250

Q1: What is the difference between the Parker F11 and F12 series?

A1: While both utilize the bent-axis design, the F12 series is specifically optimized for high-pressure, heavy-duty applications and features upgraded bearings, higher pressure ratings (up to 480 bar peak), and a more robust housing design compared to the F11 series.

Q2: What sealing options are available for this motor?

A2: Parker offers the F12-250 with various sealing compounds, including Nitrile (NBR) for standard operating temperatures and Fluorocarbon (FKM/Viton) for high-temperature applications or specialized synthetic hydraulic fluids.