H1 Family of Pumps and Motors

H1 - the New Generation of Hydrostatics

At Sauer-Danfoss, we have been developing advanced components and systems for off-highway mobile machinery for more than 40 years. That experience is at the heart of our H1 solutions.

H1 Family Product Brochure (PDF 4 MB)

Designed for high and medium power needs. H1 offers higher output speeds, lower input speeds and a reduced total installed lifecycle cost.   

PLUS+1™ Compliant for user-friendly control system development. High power density, a compact, flexible design, and an integral electrohydraulic servo piston assembly that controls the speed and direction of the hydraulic flow. 

New Automotive Control (AC) solution. We offer a complete SIL 2 certified (Safety Integrity Level 2 according to IEC 61508) solution that significantly reduces vehicle development, qualification expenses and new product time to market.

H1 Axial Piston Pumps

SD Product	Displacement cm³/rev [in³/rev]	Technical Information	Data Sheet
All H1 Pumps	45-165 cm³/rev [2.75-10.07 in³/rev]	Basic Information (PDF 3 MB) Hydraulic Fluid and Lubricants (PDF 1 MB)	-
H1 Pump	45 cm³/rev [2.75 in³/rev] 53.8 cm³/rev [3.28 in³/rev] 60 cm³/rev [3.69 in³/rev] 68 cm³/rev [4.15 in³/rev] 78 cm³/rev [4.76 in³/rev] 89 cm³/rev [5.44 in³/rev] 100 cm³/rev [6.21 in³/rev] 115 cm³/rev [7.0 in³/rev] 130 cm³/rev [7.0 in³/rev] 147 cm³/rev[8.97 in³/rev] 165 cm³/rev[10.07 in³/rev]	45/53.8 Single (PDF 6 MB) Tandem (PDF 7 MB) 60/68 (PDF 16 MB) 78 (PDF 7 MB) 89/100 (PDF 9 MB) 115/130 (PDF 9 MB) 147/165 (PDF 4 MB)	45/53.8 Single (PDF 0.5 MB) Tandem (PDF 0.5 MB) 60/68 (PDF 1 MB) 78 (PDF 1 MB) 89/100 (PDF 1 MB) 115/130 (PDF 1 MB) 147/165 (PDF 0.5 MB)
H1 AC Pump	45 cm³/rev [2.75 in³/rev] 53.8 cm³/rev [3.28 in³/rev] 60 cm³/rev [3.69 in³/rev] 68 cm³/rev [4.15 in³/rev] 78 cm³/rev [4.76 in³/rev] 89 cm³/rev [5.44 in³/rev] 100 cm³/rev [6.21 in³/rev] 115 cm³/rev [7.0 in³/rev] 130 cm³/rev [7.93 in³/rev]	45/53.8 (PDF 10 MB) 60/68 (PDF 14 MB) 78 (PDF 8 MB) 89/100 (PDF 8 MB) 115/130 (PDF 7 MB)	45/53.8 (PDF 1 MB) 60/68 (PDF 3 MB) 78 (PDF 1 MB) 89/100 (PDF 1 MB) 115/130 (PDF 0.5 MB)

Our H1 pumps feature common design technologies and assembly techniques. Overall, they offer simpler, high performance designs with fewer parts than previous hydrostatic products. Designed for smaller package sizes, our pumps provide design engineers with more freedom and flexibility in system design.

Greater Machine Efficiency

H1 pumps reduce rotating group, control and charge pump losses, which saves fuel consumption, frees power for other vehicle functions and enhances operating performance and productivity. Better efficiency means that you can use smaller engines on some machines, while you also reduce machine heat load and increase power to the ground.

Expanded Functionality

The market is expecting machines with enhanced operator and/or vehicle safety features and H1 offers numerous new options designed to address these issues.

Examples include: 

• A tandem Control Cut Off (CCO) circuit. 
• An Integral Speed Limitation (ISL) circuit.
• Integral pressure filtration with a filter bypass sensor and switch.

H1 Bent Axis Motors

SD Product	Displacement cm³/rev [in³/rev]	Technical Information	Data Sheet
H1 Bent Axis Variable Motor	60 [3.66] 80 [4.88] 110 [6.71] 160 [9.76]	(PDF 7 MB)	(PDF 1 MB) (PDF 1 MB) (PDF 0.5 MB) (PDF 1 MB)

Our bent axis motors are designed to complement the growing family of H1 axial piston pumps. Featuring proven 32 degree bent axis technology, zero degree capability and higher overall efficiency, they offer a number of significant advantages. 

Higher Overall Efficiency

H1 motors provide significant improvements in overall efficiency. An optimized valve segment and piston design helps improve fuel economy and frees power for other vehicle functions, enhancing operating performance and increasing productivity. 

Zero Degree Capability

A key feature of the new H1 motors is their zero degree capability. The ability to seamlessly reduce the angle to zero degrees means there is no torque interruption, or sudden change in speed when switching from, for example, work range to travel range. This enhanced control is not only more precise, but also improves the feel of the system during operation.

Zero degree capability enables accurate anti-slip and torque control functions, which increase vehicle productivity and optimize power utilization. It is also possible to provide wheel assist solutions without the need for additional technology. Even true two-speed applications, for example a crop sprayer, can be supported by our H1 motors. 

Additional features include: 

• Electrical control with IP69 rating
• Improved starting torque
• Low speed capability (25 rpm)