B e n t a x i s hydraulic motors MSeries
Contents Definition and main applications of hydraulic motors, advantages of HYDRO LEDUC motors.............. 1 Operating conditions of motors... 2 Determining the right motor...................... 3 Range and characteristics... 4 Efficiency curves.............................. 5 Order code system... 6 Dimensions.............................. 7-15 Flushing valve............................... 16 Speed sensor... 17 ATEX certification... 18 Installation and start-up recommendations... 19 M series motors HYDRO LEDUC hydraulic motors of the M series are of bent axis design, with an angle of 4. They combine high performance and reduced size envelope: - global efficiency of over 9% (guaranteed in most applications); - suitable for use at operating speeds between 5 and 8,8 rpm; - optimized weight and size. Available in displacements from 18cc to 18cc, M motors are suitable for all the main fixed and mobile applications. They are designed for use in either closed or open loop systems. To ensure the best service life from your motors, please take care to follow the installation and start-up recommendations (see pages 2 and 19). Other HYDRO LEDUC product lines............... 21 HYDRO LEDUC also manufactures a range of semi-integrated (plug-in) motors: the MSI series. Literature on request or on our website : www.hydroleduc.com HYDRO LEDUC Head Office & Factory B 9 F-54122 AZERAILLES (FRANCE) Tél. +33 ()3 83 76 77 4 Fax +33 ()3 83 75 21 58
Advantages of M series motors Definition of function Hydraulic motors transform hydraulic flow into rotating speed and hydraulic pressure into mechanical torque. Motor rotating speed is proportional to the flow which is supplied to it. Torque produced is proportional to the hydraulic pressure the motor receives. Main applications of hydraulic motors Typical applications are those requiring high torque within a small size. The hydraulic motor is essential for rotations where: --mechanical solutions are complex or even impossible, --electrical or pneumatic power sources are not available, --environments are dangerous (i.e. risk of explosion or extreme temperatures). Advantages of HYDRO LEDUC motors All structural components are made from similar materials resulting in consistent thermal expansion and exceptional reliability. Choice of increased bearing capacity for longer service life. No gears between plate and rotating barrel yields reduced noise levels. 1 7 piston design, ensuring excellent rotating smoothness and constant torque. Reinforced seals to withstand back pressure on motor drain return lines up to 5 bar. High pressure oil injection on piston heads: this reduces friction, heat and wear. iston heads engaged into barrel: no risk of piston / plate separation. Design and manufactured with motor barrel and valve plate automatically aligned. This guarantees long service life (because no radial mechanical stress).
Operating conditions of M series motors Hydraulic fluid HYDRO LEDUC motors are designed to be powered with mineral based hydraulic fluid. Using other fluids is possible but may require a modified motor. lease contact us with details of fluid. Recommended viscosity: --Ideally : between 15 and 2 cst; --Maximum range: between 5 and 16 cst. Filtration of hydraulic fluid The service life of the motors depends greatly on the quality and the cleanliness of the hydraulic fluid. We recommend minimum cleanliness as follows: --NAS 1638 class 9 --SAE class 6 --IS/DIS 446 class 18/15 Rotating speeds Minimum rotating speed to obtain continuous rotation is 2 rpm (however, in certain conditions, the motor can run at speeds as low as 5 rpm). Maximum rotating speed is given for each model of motor (see page 4). Installation positions HYDRO LEDUC motors are made to operate in all positions. Important note : before start up, ensure the motor is filled with hydraulic fluid. (See section on installation and start-up, page 19). Direction of rotation The motors rotate clockwise or counter-clockwise depending on the direction of hydraulic flow entering the motor. T1 T1 2 T2 T2 CW rotation B A CCW rotation B A Drain pressure It is essential to drain the motor, T1 or T2, to avoid excessive pressures on the shaft seal. Maximum acceptable internal pressure depends on motor rotating speed. However, following these guidelines will avoid problems during operation: --maximum internal pressure ( int) regardless of rotating speed (continuous): 4 bar (6psi); --maximum internal pressure ( int) regardless of rotating speed (peak): 5.5 bar (8psi); --minimum pressure in the motor housing: must be greater than ambient (external) pressure ( ext).
Determination M series motors How to determine the correct motor for your application Calculations using usual mechanical units: N = rotating speed in rpm C = torque in N.m = pressure supplied by the generator (hydraulic pump), in bar Δ = pressure difference between A and B, in bar Disp. = displacement in cc Q = flow in litres per minute η = efficiency (%) 1. Torque supplied by the hydraulic motore Theoretical torque = Torque C = C th x ηmotor Disp. x Δ 2 π = C th For example: a 5cc motor with a of 25 bar will supply a theoretical torque of : 2 N.m. Average global efficiency of the motor is 9%, actual torque is thus: 18 N.m 2. Rotating speed of the motor The rotating speed of the hydraulic motor depends on the flow Q which goes through it, and on the displacement of the motor. Q N = Disp. x 1 Example test bench for motors 3 ➀ Motor ➁ Variable displacement pump ➂ ressure relief valve ➃ Valve Hydraulic motor ➄ ➅ Winch and load weight The receiving organ (winch) ➅ needs to rotate at N = 4 rpm and supply an actual torque of 2 N.m. The hydraulic pump ➀ is capable of operating at pressure up to 35 bar. 1. Calculating the displacement of the hydraulic motor: C th = Disp. x Δ 2 π thus Disp. Cy = 35.9 cc 2. Calculating the flow Q which the pump needs to supply: Q N = x 1 thus Q = 14.36 l/min Disp. In the YDRO LEDUC range, choose a motor with a displacement of 32 cc or 41 cc. Corresponding flow : - for 32 cc motor, Q = 12.8 l/min - for 41 cc motor, Q = 16.4 l/min
Range and characteristics M series motors Characteristics of the M series motors M series motors are suitable for intensive long duty requirements. Designed for both mobile and industrial installations. Typical applications are: --vehicle transmissions; --high power crushers; --forestry equipment; --heavy duty winches... These motors are built to suit all applications to ISO standard 319/2. Displacement (cc) continuous max. speed (1) (rpm) Intermittent max. speed (1) (rpm) Max. flow absorbed (l/mn) Torque bar (m.n/bar) Torque at 35 bar (m.n) Motor max./min. temperature* ( C) Max. allowable pressure continuous / peak (bar) 18 8 88 144.28 98 25 / 11 4 / 45 5.5 25 63 69 158.4 14 25 / 11 4 / 45 11.5 32 63 69 22.5 175 25 / 11 4 / 45 11.5 41 56 62 23.65 227 25 / 11 4 / 45 11.5 5.3 5 55 252.8 28 25 / 11 4 / 45 18 63 5 55 315 1 35 25 / 11 4 / 45 18 8.4 45 5 362 1.27 445 25 / 11 4 / 45 23 9 45 5 378 1.42 497 25 / 11 4 / 45 23 18.3 4 44 435 1.7 595 25 / 11 4 / 45 23 weight (kg) 4 * for wider extreme temperatures, please contact us. (1) for higher speeds, please contact us. For special fluids, please contact us. Acceptable forces applied to motor shaft Fr : radial force measured at mid point of length of shaft. Fa : axial force which tends to push the shaft inwards. Displacement cc 18 25 32 41 5.3 63 8.4 9 18.3 Fr N 4 6 65 7 4 5 65 67 7 Fa N/bar* 2 27 3 4 4 5 6 67 8 * differential pressure between A and B. For other forces, please contact us. Fr Fa = =
Dimensions Efficiency M series motors Efficiency of motors f(displacement) LABORATOIRE HYDRO LEDUC 1 95 9 85 8 Displacement of motorr 18 cm 3 75 9 cm 3 8 cm 3 7 global efficiency (%) 63 cm 3 5 cm 3 41 cm 3 65 32 cm 3 25 cm 3 18 cm 3 Global efficiency of hydraulic motors N of motor = 1 rpm - ISO46 fluid at 25 C 6 55 5 2 4 6 8 1 12 14 16 18 2 22 24 26 28 3 32 34 36 38 4 42 ressure (bar) 5
Order code system M series motors Order code system for M type motor M... A.... M2.... 1 2 3 4 5 6 7 8 9 To obtain the code for your motor, complete the different parameters 2, 4, 5, 7, 8 and 9 in the table on the left, according to the options you require (see table below). 1 Motor Motor M 2 Displacement 18 25 32 41 5 63 8 9 18 3 Mounting flange ISO 319-2 4 bolt A 4 Shaft end DIN 548 splined DIN 6885 keyed W25 W25 W3 W3 W3 W3 W4 W4 W4 W1 W25 W35 W35 W2 B 25 B 25 B 3 B 3 B 3 B 3 B 4 B 4 B 4 D1 B 35 B 35 D2 6 5 Inlet ports A and B SAE flange ports Threaded bottom L rear M N side 1 N1 Q side 1 Q1 rear 6 Drain ports T1 and T2-2 2 2 2 2 2 2 2 2 M2 7 Suitable for use of speed sensor 8 Speed sensor yes 1 no yes 1 no 9 Valves without with flushing valve SV VB Suitability for valves: --no................................. --ccompatible with flushing valve............1
Dimensions M 18 Dimensions 95 +1 2 18.2 12 7 81.1 157 T1: M12x1.5 45 45.2 8 4 51.5 39.2 1 9 95 95 34 T2 : M12x1.5 Shaft end W1 Splined shaft DIN 548 W 25 x 1.25 x 3 x 19 x 9 g + 1 42.5 28 -.5 D1 Cylindrical keyed shaft B 25 DIN 6885 AS 8 x 7 x 32 6 + 1.5 4 -.5 8 M 1 x 1.5 3 28 25 M 1 x 1.5 3 7 22 22 Inlet ports Q Side threaded ports A et B Rear threaded ports A and B 126 145.9 M 22 x 1.5 87 34 6.6 87 77.3 87 M 22 x 1.5
Dimensions M 25 Dimensions 25 +1 8 17.5 T1 : M 16x1.5 118 11 68 74.45 1.2 118 56 125 18 T2 : M 16x1.5 42 151.6 8 Shaft end W1 Splined shaft DIN 548 W 25 x 1.25 x 3 x 19 x 9 g + 1 42.5 28 -.5 D1 Cylindrical keyed shaft B 25 DIN 6885 AS 8 x 7 x 4 5 -.5 75 + 1.5 8 M 1 x 1.5 3 28 25 +.15 +.2 M 8 38.2 22 19 Inlet ports Rear threaded ports A and B M 27x2 depth 16 74.45 59 151.6
Dimensions M 25 Inlet ports Side threaded ports Q N Side threaded ports A and B SAE 1/2" 6 SI 69.8 18.2 12 12 68.6 M8 useful depth 15 148.1 M 27x2 depth 16 4.5 M Rear threaded ports A and B SAE 1/2" 6 SI M8 useful depth 15 146.6 74.45 18.2 4.5 59 9 151.6
Dimensions M 32-41 Dimensions 186.3 +1 25 23.2 8 18 17.5 T1 : M16x1.5 118.2 1 4 56 125 11 69 118 T2: M16x1.5 42 112.7 1 Shaft end W1 Splined shaft DIN 548 W 3 x 2 x 3 x 14 x 9 g 6.2 + 1.5 W2 Splined shaft DIN 548 W 25 x 1.25 x 3 x 18 x 9 g 78 + 1.5 35.2.5 43.5 22 19 M 1 39 M 8 39.4 27 28 Cylindrical keyed shaft B 3 DIN 6685 D1 AS 8 x 7 x 4 75 + 1.5 5.5 8 33 3 +.15 +.2 M 1x1.5 38.9 22
Dimensions M 32-41 Inlet ports L SAE flange ports, bottom SAE 1/2" 6 SI M Rear flange ports SAE 1/2" 6 SI 11 59 M8 depth 15 11 18.2 4.5 59 115 91 77.9 18.2 4 4.5 158 157.7 M8 useful depth 15, drilled depth 18 Side flange ports A and B NorN1 SAE 1/2" 6 SI 12 Rear threaded ports 73.7 46 18.2 152.7 18 4.5 11 M8 useful depth 15, drilled depth 18 77.9 11 12 157.7 75 M 27x2 depth 16 Side threaded ports A et B QorQ1 M 27x2 depth 16 154.2
Dimensions M 5-63 Dimensions +1 32 3 2 118.5 15 1.2 T1 : M18x1.5 13.5.2 125 59 4 16 15 84 5 T2: M18x1.5 26 12 Shaft end W1 Splined shaft DIN 548 W 3 x 2 x 3 x 14 x 9 g 67 + 1.5 W2 Splined shaft DIN 548 W 35 x 2 x 3 x 16 x 9 g 62 + 1.5 35.5 4.5 M 12 43.9 M 12 43.9 27 28 28 32.49 D1 Cylindrical keyed shaft B 3 DIN 6885 AS 8 x 7 x 5 82 + 1.5 D2 Cylindrical keyed shaft B 35 DIN 6885 AS 1 x 7 x 5 92 + 1.5 6.5 8 6.5 1 33 +.15 3 +.2 M 12 43.9 38 +.2 35 M 12 43.9 28 28
Dimensions M 5-63 Inlet ports L SAE flange ports, bottom SAE 3/4" 6 SI M SAE flange ports, rear SAE 3/4" 6 SI 5.8 M1 depth 17 17 75 147 23.8 17 5.8 96.5 75 23.8 49 17 M1 useful depth 17 182 182.2 SAE flange ports, side A and B NorN1 SAE 3/4" 6 SI 136 Side threaded ports M 33 x 2 depth 18 23.8 88.2 M 1 useful depth 17 96.5 13 172.2 5.8 182.2 136 89.8 59 75 Side threaded ports A and B QorQ1 M 33 x 2 depth 18 174.1
Dimensions M 8-9-18 Dimensions +1 32 29 2 122.5 165 1 T1 : M18x1.5 13.5 68 18.2 14 4 165 121 9.5 63 T2: M18x1.5 236 14 Shaft end W1 Splined shaft DIN 548 W 4 x 2 x 3 x 18 x 9 g 72 + 1.5 D1 Cylindrical keyed shaft B 4 DIN 6885 AS 12 x 8 x 56 12 + 1.5 5.5 7.5 12 M 16 48.8 43 4 +.15 +.2 16 48.9 36 37 36
Dimensions M 8-9-18 Inlet ports L SAE flange ports, bottom SAE 1" 6 SI Rear threaded ports M 33 x 2 depth 18 M12 depth 2 23 M 18 x 1.5-6H M SAE flange ports, rear SAE 1" 6 SI 57.2 27.8 15 23 84 M12 useful depth 2 14.3 23.1 SAE flange ports, side NorN1 SAE 1" 6 SI M 18 x 1.5-6H 16 11.6 57.2 84 166 27.8 62.5 84 121 14.3 26 23.1 Side threaded ports QorQ1 M 18 x 1.5-6H 16 11.6 M 33 x 2 depth 18 2.2 27.8 M 12 x 175 useful depth 2 2.2 57.2
117 Accessories M series motors Flushing and resupply valve Used to create flow to cool the motor. This valve is essential for all intensive uses of motors and contributes to long service life, particularly in closed loop transmission applications. The valve takes some hydraulic fluid internally from the return connection port (low pressure) and reinjects it into the motor housing. This is then evacuated via the motor drain line. The flushing and resupply valve is only available for use on motors with side ports (N1 or Q1 in order code). HYDRO LEDUC reference: VBS 9118. Schematic: 16 Dimensions: X Y Motor displacement (cc) X (mm) Y (mm) 32-41 123 215 5-63 141 24 8-9 - 18 157.6 272.3
Accessories Dimensions M series motors Speed sensor The M series motors can be fitted with an induction type speed sensor, to measure rotating speed and also direction of rotation. This accessory may only be used on motors which are suitably adapted to take it (see order code system on page 6, parameter no. 7). HYDRO LEDUC reference: 9244. A F B C View from F 22 17 22 B 7 24.5 Motor displacement (cc) A (mm) B (mm) C (mm) 32-41 161.5 41.6 93.8 9 5-63 178.4 39 11.3 8-9 - 18 2.2 38.5 16.3 Technical data for the sensor: Note: maximum tightening torque = 5 N.m For further information, please contact us. Rated voltage 12 and 24 V DC Residual ondulation max ± 2 V DC Supply current 8 32 V DC Current consumption maximum 33mA at 24 V DC Output frequency 2 Hz 6kHz rotection type I 67 and I 69 k Operating temperature 4 C + 125 C Storage temperature 55 C + 125 C Weight around 95 g
ATEX certification M series motors HYDRO LEDUC motors are certified ATEX. As standard, all HYDRO LEDUC motors are classed in Group II category 2 D T4. On request, motors may be supplied for: - Group II category 2G; - Group II category D T4. In these cases, the motors are not painted and are open to risk of corrosion. Explanation of the different groups: - group II category 2 means it is possible to operate in an ATEX 1 zone (probable gas atmosphere) or ATEX 21 zone (probable dusty atmosphere). - G = may operate in a gas zone. - D = may operate in a dusty atmospere. - T4 : maximum surface temperature of 135 C. recautions regarding ATEX The operating temperatures of the motors must be guaranteed by the end user. Check all parts connected to the motor for conformity with ATEX. Markings on motors Example of ATEX marking on motors: 18 CE II 2 D c T4 (135 C) HL 1 If you have different requirements, please contact us. 1 2 3 4 1 Dimensional control of M motor housing 2 Assembly of M motor 3 Spline cutting (shaft) 4 MSI motors
Installation and start-up M series motors Maximizing service life of bearings In cases where there is a radial force on motor shaft, keeping the direction of that force within the shaded areas shown below will improve service life of the motor. For acceptable radial and axial forces, see page 4. motor in rotation CCW pressure in A gear hub motor in rotation CW pressure in B motor in rotation CW pressure in B pulley hub motor in rotation CCW pressure in A motor susceptible of rotation CCW et CW 7 7 Fr 45 45 Fr Fr Fr Fr B A B A B A B A B A Mounting position of motors HYDRO LEDUC motors can be used in any position. In installations where the position of the motor (H) is above the tank for the drain return, be sure the drain line is always submerged in fluid. If this is not the case, it is necessary to add a check valve on the drain line following the figure below. 19 H.5 bar ensure a of.3 to.5 bar Operating conditions See page 2. Instructions for use Each motor is supplied with an instruction leaflet, also available via e-mail on request mail@hydroleduc.com.
Notes M series motors 2
other product lines piston pumps for trucks HYDRO LEDUC offers 3 ranges of piston pumps perfectly suited to all truck, construction equipment, and TO mount applications. X A AC TXV Industrial applications Variable displacement pumps with Load Sensing control, pressure compensation or other control device. Capable of operating at high pressure, in a small space envelope. SAE shafts and flanges. DELTA SAE micro-hydraulics This is a field of exceptional HYDRO LEDUC know-how: axial and radial piston pumps, of fixed and variable displacement, axial piston micro-hydraulic motors, micro-hydraulic units incorporating pump, electric motors, valving, controls, etc. To users of hydraulic components which have to be housed in extremely small spaces, HYDRO LEDUC offers complete, original and reliable solutions for even the most difficult environments. we are passionate about hydraulics hydro-pneumatical accumulators Bladder, diaphragm and piston accumulators. Spherical and cylindrical accumulators. Volume capacities from 2 cl to 5 litres. ressures up to 5 bar. Accessories for use with hydraulic accumulators. A dedicated R&D team means HYDRO LEDUC is able to adapt or create products to meet specific customer requirements. Working in close cooperation with the decision-making teams of its customers, HYDRO LEDUC optimises proposals based on the specifications submitted.
A passion for hydraulics HYDRO LEDUC Head Office & Factory B 9 - F-54122 AZERAILLES (FRANCE) Tél. +33 ()3 83 76 77 4 Fax +33 ()3 83 75 21 58 HYDRO LEDUC GmbH Haselwander Str. 5 D-77746 SCHUTTERWALD (DEUTSCHLAND) Tel. +49 () 781-948259 Fax +49 () 781-9482592 HYDRO LEDUC SAS with capital of 4 65 euros Siret 319 27 421 19 HYDRO LEDUC L.. 14515 Briar Hills arkway - Suite 116 HOUSTON, TEXAS 7777 (USA) Tel. +1 281 679 9654 Fax +1 281 596 93 Complets catalogues available at: www.hydroleduc.com 1/28 - The information is given as rough guide. Not contractual document. Cancels and replaces previous version. RC Nancy B 319 27 421 Editech.com mail@hydroleduc.com