Danfoss Series 40 Variable Axial Piston Motors

Danfoss Series 40 motors is designed for medium power applications with maximum loads of 345 bar [5000 psi]. We provide Danfoss Series 40 Variable Axial Piston Motors repair, sales and maintenance services to keep your equipment running at their peak performance.

Series : Danfoss 40
Axial Piston Variable Displacement Motor
Model : M35 MF, M44 MF, M35 MV, M44 MV, M46 MV.
Minimum Pressure 345/380 Bar (Psi 5000/5511)
Maximum Pressure 415 Bar (Psi 6019)
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Description
Technical Specifications
Product Models
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Danfoss Series 40 Variable Axial Piston Motors is constructed with a parallel axial piston/slipper design and a tiltable swashplate. These motors are built with a rigid, cast iron housing and are compact, making them easy to install in limited-space situations. Danfoss Series 40 variable motors provide high-capacity bearings, that is, a special dust seal for fan drives, and three end cap options for easy integration.

Danfoss Series 40 motors are available in multiple sizes ranging from 35 cm3 to 46 cm3 [2.14 in3 to 2.80 in3] and are rated for loads up to 345 bar [5,000 psi]. The M35, M44, and M46 motor units are members of the Series 40 family of variable-displacement motors. The M35 and M44 variable motors come with direct displacement control and a trunnion-style swashplate. M46 variable motors use a two-position hydraulic servo control and a cradle swashplate construction.

These motors are used in various applications, including agriculture, construction, road building, material handling, forestry, and turf care. Series 40 motors featured high output speed capabilities and proven reliability and performance. These motors can be applied together or combined with other products in a system to transfer and control hydraulic power.

Technical Specifications

Technical Data

Model		Unit	M35 MF	M44 MF	M35MV	M44MV	M46 MV
Model configuration			Fixed	Fixed	Variable	Variable	Variable
Displacement		cm³/rev [in³/rev]	35 [2.14]	44 [2.65]	35 [2.14]	44 [2.65]	46 [2.80]
Weight		kg [lbf]	11 [26]	11 [26]	21 [47]	21 [47]	23 [51]
Mass moment of inertia		kg•m² [slug•ft²]	0.0033 [0.0024]	0.0032 [0.0023]	0.0033 [0.0024]	0.0032 [0.0023]	0.0050 [0.0037]
Rated @ min. disp.			–	–	4200	3900	4500
Maximum @ min. disp.			–	–	5300	4850	5000
System pressure	Nominal pressure	bar [psi]	380 [5511]	345 [5000]	380 [5511]	345 [5000]	345 [5000]
System pressure	Maximum pressure	bar [psi]	415 [6019]	415 [6019]	415 [6019]	415 [6019]	385 [5584]
Case pressure	Maximum working	bar [psi]	1.7 [25]	1.7 [25]	1.7 [25]	1.7 [25]	1.7 [25]
Case pressure	Maximum	bar [psi]	5.2 [75]	5.2 [75]	5.2 [75]	5.2 [75]	5.2 [75]
Speed limits	Rated @ max disp.	min-¹[rpm]	3600	3300	3600	3300	4000
Speed limits	Maximum @ max. disp	min-¹[rpm]	4500	4100	4500	4100	4100
Type of mounting			SAE B	SAE B	SAE B	SAE B	SAE B
Port connections			Side, Twin, Axial	Side, Twin, Axial	Twin	Twin	Side, Twin, Axial
Output shaft options			Splined, Tapered, Straight Key	Splined, Tapered, Straight Key	Splined	Splined	Splined, Tapered
Control options			–	–	DDC	DDC	Hyd. 2-pos.
Loop flushing			Option	Option	Option	Option	Option
Displacement limiters			–	–	Option	Option	Option