Bent Axis Piston Pumps
OMFB's bent-axis piston pumps—comprising the HDS, HDT, MDS, and TFP series—are engineered to deliver exceptional performance with reduced noise levels.
This is achieved through a novel internal gear machining technique that enhances the mechanical coupling between the cylinder block and the driving gear, ensuring optimal performance at remarkably low noise levels.
These pumps offer displacements ranging from 12 to 130 cc, with maximum continuous pressures up to 350 bar and speeds reaching 3000 RPM.
Mounting options include UNI 3 bolts, ISO 4 bolts, SAE-B, and SAE-C, available in both single and twin flow configurations.
An optional bypass valve can be directly fitted onto the rear cover of the pump, allowing return flow to the tank through the pump itself, thereby eliminating the need for an additional hose.
This valve safeguards the pump from pressure peaks caused by incorrect operations, such as closed circuits or disconnected couplings.
Notably, the valve assembly is symmetrically designed, permitting a 180° rotation to prevent any installation interferences.
This is achieved through a novel internal gear machining technique that enhances the mechanical coupling between the cylinder block and the driving gear, ensuring optimal performance at remarkably low noise levels.
These pumps offer displacements ranging from 12 to 130 cc, with maximum continuous pressures up to 350 bar and speeds reaching 3000 RPM.
Mounting options include UNI 3 bolts, ISO 4 bolts, SAE-B, and SAE-C, available in both single and twin flow configurations.
An optional bypass valve can be directly fitted onto the rear cover of the pump, allowing return flow to the tank through the pump itself, thereby eliminating the need for an additional hose.
This valve safeguards the pump from pressure peaks caused by incorrect operations, such as closed circuits or disconnected couplings.
Notably, the valve assembly is symmetrically designed, permitting a 180° rotation to prevent any installation interferences.
Characteristics
• Displacement Range – 12 to 130 cc
• Maximum Continuous Pressure – Up to 350 bar
• Maximum Continuous Speed – Up to 3000 RPM
• Mounting Options – UNI 3 bolts, ISO 4 bolts, SAE-B, SAE-C
• Configurations – Single and Twin Flow
• Bypass Valve Option – Available for direct integration
• Maximum Continuous Pressure – Up to 350 bar
• Maximum Continuous Speed – Up to 3000 RPM
• Mounting Options – UNI 3 bolts, ISO 4 bolts, SAE-B, SAE-C
• Configurations – Single and Twin Flow
• Bypass Valve Option – Available for direct integration
Advantages
• Compact Cast Iron Body – Reduced dimensions with high resistance to pressure peaks, accommodating up to 400 bar to meet the demands of modern machinery
• Hardened Splined Output Shaft – Enhanced durability to withstand torque from the PTO
• High-Performance Seals – FKM and reinforced oil seals enable the pump to handle back pressures effectively
• Wide Operating Temperature Range – Special gaskets allow operation between -40°C and +140°C
• Seven-Piston Design – Ensures a consistent load on bearings, resulting in smoother delivery and reduced pulsation
• Optimized Suction Port – Designed to minimize noise levels
• Shaft-Driven Piston Barrel – The proven tapered toothing design allows pistons to operate without radial load, extending fatigue resistance
• Durable Sliding Surfaces – Constructed from aluminum and nitrided cast iron to enhance longevity, even with contaminated fluids
• Tapered Roller Bearings – Provide increased load capacity to withstand high working pressures
• Three-Piece Body Design – Ensures continuous lubrication of bearings
• Optional Bypass Valve – Particularly useful for applications where the pump is continuously driven
• Special Versions Available – Options include SAE shafts and UNF ports to meet specific requirements
• Hardened Splined Output Shaft – Enhanced durability to withstand torque from the PTO
• High-Performance Seals – FKM and reinforced oil seals enable the pump to handle back pressures effectively
• Wide Operating Temperature Range – Special gaskets allow operation between -40°C and +140°C
• Seven-Piston Design – Ensures a consistent load on bearings, resulting in smoother delivery and reduced pulsation
• Optimized Suction Port – Designed to minimize noise levels
• Shaft-Driven Piston Barrel – The proven tapered toothing design allows pistons to operate without radial load, extending fatigue resistance
• Durable Sliding Surfaces – Constructed from aluminum and nitrided cast iron to enhance longevity, even with contaminated fluids
• Tapered Roller Bearings – Provide increased load capacity to withstand high working pressures
• Three-Piece Body Design – Ensures continuous lubrication of bearings
• Optional Bypass Valve – Particularly useful for applications where the pump is continuously driven
• Special Versions Available – Options include SAE shafts and UNF ports to meet specific requirements
Features & Benefits
• Robust Construction – The compact cast iron body offers exceptional strength and durability, making it suitable for high-pressure applications
• Versatile Mounting Options – Multiple configurations ensure compatibility with a wide range of systems and installations
• Enhanced Performance – The seven-piston design and optimized suction port contribute to smooth operation with minimal noise and pulsation
• Operational Flexibility – Capable of handling a broad spectrum of temperatures and pressures, these pumps are adaptable to various demanding environments
• Maintenance-Friendly Design – Features like the three-piece body and shaft-driven piston barrel facilitate easy maintenance and extended service life
• Versatile Mounting Options – Multiple configurations ensure compatibility with a wide range of systems and installations
• Enhanced Performance – The seven-piston design and optimized suction port contribute to smooth operation with minimal noise and pulsation
• Operational Flexibility – Capable of handling a broad spectrum of temperatures and pressures, these pumps are adaptable to various demanding environments
• Maintenance-Friendly Design – Features like the three-piece body and shaft-driven piston barrel facilitate easy maintenance and extended service life
Product focus
The HDT Series represents a line of compact bent-axis piston pumps, specifically engineered for installations with space constraints.
The unique body design simplifies installation, especially when mounted on coaxial PTOs, and accommodates larger truck propeller shafts.
Available in displacements of 75 cc, 84 cc, 96 cc, and 108 cc, the HDT Series combines high performance with a space-efficient footprint.
The unique body design simplifies installation, especially when mounted on coaxial PTOs, and accommodates larger truck propeller shafts.
Available in displacements of 75 cc, 84 cc, 96 cc, and 108 cc, the HDT Series combines high performance with a space-efficient footprint.
Frequently Asked Questions
• What displacement options are available in the bent-axis piston pump series?
The series offers displacements ranging from 12 to 130 cc, catering to a variety of hydraulic system requirements.
• What mounting configurations are supported?
Mounting options include UNI 3 bolts, ISO 4 bolts, SAE-B, and SAE-C, providing flexibility for diverse installation needs.
• Is a bypass valve available for these pumps?
Yes, an optional bypass valve can be directly fitted onto the rear cover of the pump, facilitating return flow to the tank through the pump itself and protecting against pressure peaks from incorrect operations.
• What is the operating temperature range of these pumps?
The pumps are designed to operate efficiently within a temperature range of -40°C to +140°C, thanks to specialized gaskets.
• Are there special versions available to meet specific requirements?
Absolutely, special versions with SAE shafts and UNF ports are available to accommodate unique application needs.
The series offers displacements ranging from 12 to 130 cc, catering to a variety of hydraulic system requirements.
• What mounting configurations are supported?
Mounting options include UNI 3 bolts, ISO 4 bolts, SAE-B, and SAE-C, providing flexibility for diverse installation needs.
• Is a bypass valve available for these pumps?
Yes, an optional bypass valve can be directly fitted onto the rear cover of the pump, facilitating return flow to the tank through the pump itself and protecting against pressure peaks from incorrect operations.
• What is the operating temperature range of these pumps?
The pumps are designed to operate efficiently within a temperature range of -40°C to +140°C, thanks to specialized gaskets.
• Are there special versions available to meet specific requirements?
Absolutely, special versions with SAE shafts and UNF ports are available to accommodate unique application needs.
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