FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series...

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Technical Catalog High Torque, High Speed Radial Piston Hydraulic Motors FS Series

Transcript of FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series...

Page 1: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

Technical Catalog

High Torque, High Speed

Radial Piston Hydraulic Motors

FS Series

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� � � � � � � � � � � � FS Series Motors

FS SERIES

HYDRAULIC MOTORS� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ! " � � � � � # � � $ � � � � % � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ! " & ! ' & ( ' & ) � � � � � # � % � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ! " * � + � , $ � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ! " & ! & - � � � � . � , $ � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ! " � � � � � / � � + � � % � � � � # � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ! " , � � � � � � . 0 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ) 1 � � � � � # � � $ � � � � % � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ) 1 & ! ' & ( ' & ) � � � � � # � % � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ) 1 * � + � , $ � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ) 1 & 2 � � � � � 3 * � + � , $ � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ) 1 � � � � � / � � + � � % � � � � # � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� ) 1 , � � � � � � . 0 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� " 1 4 � � � � � # � � $ � � � � % � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� " 1 4 & ! ' & ( � � � � � # � % � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� " 1 4 * � + � , $ � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� " 1 4 � � � � � / � � + � � % � � � � # � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� " 1 4 , � � � � � � . 0 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� " 1 � � � � � # � � $ � � � � % � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� " 1 & ! ' & ( � � � � � # � % � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� " 1 * � + � , $ � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �� " 1 , � � � � � � . 0 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �# � � � � � 5 � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �& � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �0 � % % � � # 6 7 � � � % � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � �

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Technical Catalog

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< = > ? @ A B C D E F G H D I FS Series Motors

Crankshaft Design Radial Piston Motors

The main characteristics of this type of motor are high mechanical e� ciency, especially at start-up, and high volumetric

e� ciency. Interchangeable parts enable motors to be built that are tailored to the customer’s speci� c needs. A number of

features distinguish SAI motors from other radial piston designs. The design of the radial motor with the crankshaft and

oscillating cylinders provides very high starting torque e� ciencies as well as other advantages.

Swivelling Cylinder

The cylinder (1) remains aligned with the eccentric path of the crank (3), eliminating side loading between the cylinder

and the piston (2). The articulation of the cylinder-piston assembly is achieved with large diameter trunnions (4) which

ensure low speci� c loads. Larger trunnions (12) increase their strength and sti! ness while reducing speci� c loads. Larger

Trunnions also allow Hydraulic balancing(13), which reduces friction, wearing and heat generation. This enables operation

using higher pressures and speeds.

Double Piston Support Bearing

The pistons transmit their load to the shaft via a hydrostatic bearing (5) and a central roller bearing. The hydrostatic bearing

reduces metal to metal contact ensuring optimal lubrication and low friction. The roller bearing minimizes the friction

between the piston and the spherical piston support ring, reducing heat and wear while improving low speed operation

and starting torque. The mechanical e� ciency of the SAI motor is typically higher than 90% at 400 bar (5800 psi).

Piston Retaining Rings

The piston retaining rings (7) ensure that the piston remains in contact with the shaft in all operating conditions. The

retaining force counteracts the separating force continuously, thus preventing lifting, tilting, or hammering of the piston

during cavitation. This also helps extend the life of the motor as well as reduce the noise generated. SAI motors are

extremely quiet. The noise level can be reduced further by using a back pressure of 5 - 10 bar (70 - 145 psi) on the motor.

Please note that pressure lines and motor support structures can propagate or even amplify the sound from the motor.

Rotary Axial Distributor

Optimal distribution is achieved with short ducts that have wide diameters in the rotary axial distributor (8). This reduces

the power loss when high " ow rates are present and achieves high volumetric e� ciency. Precision machining and high

performance seals provide optimal functionality throughout the life of the motor as well as protecting against thermal

shock. The distributor housing (9) is interchangeable, providing a wide range of pressure ratings, port sizes, and " ow

control options. The motors are available, on request, with a special distributor which ensures silent working conditions. A

radial cylinder injection feed eliminates direct hydraulic axial loading of the motor casing. The large cylinder feed channels

(10) drastically reduce power loss due to drag. Stronger Castings (11) as well as internal reinforcement ribbing increase the

load capacity, as well as allow for higher internal pressures when compared to previous products.

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K L M N O P Q R S T U V W S X FS Series Motors

Pressure Ratings, Back Pressure, and Case Pressure

The motors have listed their continuous and peak operating pressure. The continuous and average operating pressure

should be chosen as a function of the required bearing lifetime (see bearing lifetime graphs). The motors may work at peak

pressures not exceeding 1% per minute, no more than 10 times per hour.

SAI motors are capable of operating with high back pressures with high e� ciency, e.g. for series circuit applications. The

allowable pressures vary as a function of piston diameter and other factors. If the motors are required for an application

with back pressure, contact the technical department for further details. Typical allowable back pressure values are:

Port A Port B

Continuous 3,000 psi 2,200 psi

Peak 5,000 psi 5,000 psi

The case pressure for all motors is independent of the return line pressure. Standard case pressure is 15 psi continuous, 75

psi peak. For higher pressures (up to 350 psi) please contact the SAI technical Department.

Torque

To obtain the theoretical output torque of a motor, multiply the speci! c torque (lb.ft/100 psi) given in the displacement tables by the pressure divided by 100 (psi/100). The graph below shows the output torque variation as the shaft rotates

though 360°. the output torque will vary slightly as the motor rotates, this is due to the cycling of the cylinders and it is part of normal operation.

Typical starting torque e� ciencies are given in the performance graphs of the motors. The starting torque, however, also depends on the starting position of the shaft (see graph above). The motors are capable of operating at low speeds with a high degree of speed stability. The minimum stable speed depends on the displacement of the motor. In general, the motors remain sensitive to # ows of 6 in³/min + motor leakage rate. Best results are obtained with 75-150 psi back pressure and after the circuit has been completely purged of air by running it at 2/3 max speed for 5-10 mins. The output torque does not fall o& at very low speeds or at standstill.

Cavitation and Freewheeling

The design of the motors ensures that they are not damaged if subjected to cavitation, even for prolonged periods of time. The motors will rotate normally even with empty cylinders (i.e. no oil-air, or vacuum), which is useful for disconnecting the motor from the hydraulic circuit (see below). Transitions from normal motor operating mode to free wheeling and hydraulic braking mode can be carried out dynamically. The motors can be disconnected from the hydraulic circuit and be driven externally (freewheeling, free-fall, in case of breakdown, ect.) at speeds of up to the max. speeds given. For higher

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Z [ \ ] ^ _ ` a b c d e f b g FS Series Motors

speeds, please contact our technical department.

The diagram below shows four possible circuit con� gurations for motor disconnection and/or for operation in free

wheeling.

A: It is possible for the motor to run with only partially � lled cylinders, causing a signi� cant increase in noise levels. This

type of circuit is to be avoided for high speed applications.

B: The motor runs with air in the cylinders. This type is ideal for high speed freewheeling applications.

C: The motor runs with inlet and outlet ports connected. This type of circuit is suitable for applications in which it is

necessary to control the speed of the motor. (e.g. with variable throttle).

D: The motors run with air in the cylinders subjected to negative pressure. The motors can operate in these conditions for

several hours without damage or being overheated and absorb very little torque.

Hydraulic Fluids

SAI recommends the use of high quality mineral-based hydraulic oil containing anti-wear, anti-foaming, anti-oxidation,

and extreme pressure additives. Ideal oil temperature is between +86°F to +122°F. Allowable oil temperatures are between

-68°F to +176°F. On request, motors can be supplied to operate with lower (to -104°F) or higher (to +248°F) temperatures.

Oil Viscosity should ideally range from 40 to 60 cSt, and 5 to 3000 cSt is allowable. The choice of oil should be made so that

the viscosity of the oil lies within the given range at its normal operating temperature.

Synthetic " uids (Phosphate Esters, Polyesters, ect) have similar properties to mineral oils and the same pressure, speed,

temperature, and viscosity ratings apply. These " uids may require seals made of a di# erent material, which are available

upon request. If water-based " uids (water-oil emulsions, water-glycol solutions, ect) are used, the following limits apply:

Max continuous pressure: 1,450 psi

Max speed reduction: 50%

Allowable Temperature +50°F to +140°F

The characteristics of vegetable oils vary widely and manufacturers recommendations should be followed. In general,

while lubricating qualities are similar to those of mineral oils, temperature limits may apply and the oil may need to be

changed frequently. The warranty on motors operating with " uids other than mineral oils for high pressure hydraulic

applications is only valid if the application is � rst approved by SAI.

Drain line Position

The position of the drain line must be placed in such a way that there is always su$ cient oil in the casing for lubrication of

the shaft bearing. If the motor has to be installed with the shaft in a horizontal position, the drain line should be connected

to the uppermost drain line port. If the motor is installed with the shaft in a vertical position, the motor casing has to be en-

tirely � lled with oil and the drain line has to be connected in such a way that no air can enter the motor. This is to prevent

the bearing on the motor boy from working without lubrication.

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i j k l m n o p q r s t u q v FS Series Motors

Start Up

Before connecting the pipes, make sure that they are clean and that there is no rust. Before the initial startup, � ll the motor

and the gearbox with oil. In the shared oil versions, the motor has no shaft seal between the motor and gearbox, therefore

the unit can be � lled either from the drain line in the motor cover or the one in the gearbox body. The products are tested

at the factory and do not require a testing period.

Filtration

SAI recommends using � lters with a rating of 25 microns maximum. The preferred rating is 10 microns. SAI products have

good resistance to contaminated oil; however clean oil and an e! cient � ltration system are important for the proper

functioning and reliability of all the components in the hydraulic system. The e! ciency of the � ltering system is reduced

as the � lter elements accumulate trapped particles, therefore the � lters have to be regularly inspected and replaced. it

is recommended to pay close attention at the � rst startup of the hydraulic system or in the event of replacement of any

component for damage or excessive usage. It is advisable to follow the � lter manufacturer’s recommendations for its life

span and cleaning or substitution cycles.

Pipes and Connections

SAI recommends the use of high quality piping and connections for high pressure hydraulic applications. Please follow

manufacturer’s recommendations for pipe sizes. To reduce the e" ects for oil compressibility, use pipes with minimum

possible width and diameter and maximum rigidity, do not use pipes which are smaller than the port connections. To

reduce the e" ects of load loss avoid sharp corners, restrictions, and high # ow speed. The nominal diameter ND of a pipe

depends on the # ow (l/min) and average speed (m/s) . the formula to calculate the minimum recommended diameter,

considering a maximum speed of 6 m/s, is:

������� � ����� ����������������� �

Where:

Q = flow

6 [m/s] = v (average speed)

Page 7: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

w

x y z { | } ~ � � � � � � � � FS Series Motors

Noise Levels

The motors operate at lowest noise levels with a back pressure of 75-150 psi, such as in closed circuits. Pressure lines and

motor support structures can be e� cient noise propagators or ampli� ers. Pressure lines should preferably be made up of straight rigid lengths, � exible corners, � rmly � xed to rigid supports at irregular intervals away from sheet panelling. Motors must be rigidly � xed to solid supports. The motors can be supplied with a special distributor that runs nearly silent in a wide operating range. They can also be supplied with a counterbalanced shaft tor educe vibrations at high speeds. Please contact the SAI technical department for further details.

Distributor Cover Orientation

SAI Motors can be provided with the distributor cover assembled with the distributor arrow pointing towards any one of the � ve positions. To order, use assembly codes DM1, DM2, ... , DM5, etc. (DM1 = standard)

All SAI Motors are bidirectional. The direction of shaft rotation is determined by the direction of the oil � ow. The standard motor con� guration is set to have the input � ow though port A which causes the shaft to move counterclockwise. If the input � ow is though port B, the shaft will move clockwise. Please note if clockwise orientation is needed.

Direction of Shaft Rotation

All SAI motors are bidirectional. The direction of shaft rotation is determined by the direction of oil � ow. Standard motors are supplied so that the � ow entering in port A cause the shaft to rotate clockwise (as seen from the shaft side of the motor). Flow entering port causes the shaft to spin in the counter-clockwise direction. If rotation is desired in the opposite direction, the � ow should be reversed. With the input on the B side and the output on the A side. SAI motors can also be supplied so that the shaft spins in the opposite direction (with input on the A side causing the shaft to spin counter-clockwise).

Bronze Components and Non-magnetic Motors

FS Series motors typically do not contain bronze components. However, when high speed distributors are used (including the standard D40 and D90 Distributors), or when a low speed distributor calls for a DBM wearplate, the motors do contain bronze components. If the hydraulic � uid that is used is not compatible with bronze, select an optional low speed (LS) distributor (no bronze components) or contact our technical department. SAI can also provide motors with up to 70% non magnetic content.

DM1 orientationshown

Page 8: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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FS15 SERIES

Page 9: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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Page 10: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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SHAFT OPTIONS FOR A1/A2 MOUNT

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Page 11: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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Page 12: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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PERFORMANCE DATA

Page 13: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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1) Mean values at rated conditions. For actual admissible loads based on speed, service life, and application/duty, please consult the Plan-Star PSR catalog.

2) Max. peak values , which must never be exceeded. Combined thrust and radial sha! loads might reduce bearing life. Please contact SAI Engineering for accurate life calculation of your speci" c application.

3) Combination of high torque and heavy radial sha! load might require veri" cation of the output sha! . If the following condi-tion is not ful" lled, contact SAI engineering for accurate veri" cation of your speci" c application.

FS15 BEARING CAPACITY GRAPH

Page 14: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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FS15 ORDERING CODES

Page 15: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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FS30 SERIES

Page 16: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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Page 17: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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SHAFT OPTIONS FOR A1 MOUNT

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SHAFT OPTIONS FOR A2 MOUNT

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Page 18: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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Page 19: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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PERFORMANCE DATA

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FS30A4 BEARING CAPACITY GRAPH

1) Mean values at rated conditions. For actual admissible loads based on speed, service life, and application/duty, please consult the Plan-Star PSR catalog.

2) Max. peak values , which must never be exceeded. Combined thrust and radial sha! loads might reduce bearing life. Please contact SAI Engineering for accurate life calculation of your speci" c application.

3) Combination of high torque and heavy radial sha! load might require veri" cation of the output sha! . If the following condi-tion is not ful" lled, contact SAI engineering for accurate veri" cation of your speci" c application.

Page 21: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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µ º µµ ³ µ ¼ µ ¹ µ · µ µ

FS30A4 LIFE FACTOR BEARING CHART

Page 22: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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FS30 ORDERING CODES

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FS507 SERIES

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Page 25: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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à á â ã ä ò æ í ÷ ê ø ù ã â í î á é ïð ò ñ ò ú ç ø ï � î � ð � � á á ï î �ä å � ç é ã � � é ã ù � ê ã � õ ê è ï � á á ïí ø â ã õ ø ï � þ í ý � ô ò ð

à á â ã ä ä æ ç è é è ê ê ã ê ë ã ì� á ù � ò û ð ñ ú ó à á â ã ä ú æ í ÷ ê ø ù ã â � á ù � � ñ ð � ç ø ï � îð � � á á ï î � ä å � ç é ã � � é ã ù � ê ã �õ ê è ï � á á ï í ø â ã õ ø ï � þ í ý � ô ò ð

SHAFT OPTIONS FOR A1 MOUNT

SHAFT OPTIONS FOR A2 MOUNT

Page 26: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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Page 27: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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FS507 ORDERING CODES

Page 28: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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FS50 SERIES

Page 29: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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Page 30: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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SHAFT OPTIONS FOR A1 MOUNT

SHAFT OPTIONS FOR A2 MOUNT

À Á Â Ã Ø Å Ý Ç Ú Ç È È Ã È Û Ã Ü Ã ÂÓ Ñ Þ Þ À Á Â Ã Õ Å ß Ã Þ Ç È Ã É Ê È Ë Ì Ã ÂÍ Î Ï Ð Ð ÑÀ Á  à à Å ß Ã Þ Ç È Ã É Ê È Ë Ì Ã ÂÓ Ñ Ô Õ Ô Ä Ð Ö Ï Î × Ó Ø Ñ À Á Â Ã Ä Ò Å ß È Ç á â Á Á á É Ë Â Ãß Ë á Ä ã Ù Á Á á ä å Ø æ Ä ã Ý Ë á ç äÉ Ê È Ë Ì Ã

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Page 31: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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FS50 ORDERING CODES

Page 32: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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D30ALow � ow rate distributor with axial port connections.

Max Continuous Pressure: 2000 psi.

Max Peak Pressure 4000 psi.

Weight: 5.5 lbs

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D313ALow � ow rate distributor with shuttle valve for high

pressure pilot.

Max Continuous Pressure: 3550 psi.

Max Peak Pressure 7100 psi.

Weight: 9.9 lbs

Page 33: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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D315ALow � ow rate distributor with shuttle valve for high

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Weight: 9.9 lbs

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D317ALow � ow rate distributor with purge valve (5.3 gal/

min at 285 psi) and -16 SAE O-ring ports.

Max Continuous Pressure: 3550 psi.

Max Peak Pressure 7100 psi.

Weight: 9.9 lbs

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Page 34: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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D327ALow � ow rate distributor with shuttle valve for high

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Max Continuous Pressure: 3550 psi.

Max Peak Pressure 7100 psi.

Weight: 9.9 lbs

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D40AHigh � ow rate distributor for applications that require

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Max Continuous Pressure: 3550 psi.

Max Peak Pressure 7100 psi.

Weight: 11 lbs

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Page 35: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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D47AHigh � ow rate distributor with -16 SAE 3000 psi � anges

Max Continuous Pressure: 3550 psi.Max Peak Pressure 7100 psi.Weight: 13 lbs

D47RAHigh � ow rate distributor with -16 SAE 6000 psi � anges

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Page 36: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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D48AHigh � ow rate distributor with direct acting relief

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D481AHigh � ow rate distributor w/direct acting relief valves

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Page 37: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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D707AHigh � ow rate distributor for large 7-piston

motors. 1-1/4” SAE 6000 psi � anges.

Max Continuous Pressure: 3550 psi.

Max Peak Pressure 7100 psi.

Weight: 32 lbs

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Page 38: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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Ç È É Ê Ë Ì Í Î Ï Ð Ñ Ò Ó Ï Ô DistributorsMECHANICAL TACHOMETERS FOR ALL MOTORS

Tachometer drive plug, 1/2”

BSPP thread

Code K

Õ Ö × Õ Ø Ø Ù ÚÕ Û Ö Ü Ö Ý

Tachometer drive, 1/2” BSPP

thread

Code J

Tachometer drive mount for BEI encoder E25

BA (type 6R)

For D3XX Code JB2A

For all other distributors Code JB2

Tachometer drive mount for magnetic switch (12

pulse/rev)

Code JB3

Page 39: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

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à á â ã ä å æ ç è é ê ë ì è í Distributors

Low speed distributors such as D30, D31...D37 can be

supplied mounted on a bronze disc (see � gure). With this disc

these distributors have the same max speed characteristics

as high speed distributors.

î ï ð ñ ò ó ô õ ó ö ÷ ñ ö î ïø ù ú û ü ý þ ÿ ü � � þ � ÿ þ � � � û � � �ø � ú � � � � � � � � � � � � � � � � � ø � � ú ø � � � úø � ú � � � � � � � � � � � � � � � � � � � � � � �� � � � � � � þ � � � � � � � � �� � � � � � � � � � ü � � � � � � � � ! � " ø � # � $ ÿ ú � � % � � "� � � � � � � � � � � � � � � ý & � � � � ' � � � % � � � � � (� � � � � � � � � � � � � � � ý & � � � � ) � � � % � � � ø * ý ' ! " ( � � # ú ÿ ý+ , - . / - 0 / 1 2 3 4 1 5 6 1 7 8 9 : ý � � � � � � � � � � � � � � � � � � � � � � � � & � � � � � � � � � � : � ; � � � � � � � � � � � � � � � � � � � � � � � � � � �� � � � � & � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � : ý � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � � : ü � � � � � � � � � � � � � � < �� � � � � � � � � � � � � � � � � � � � � � & � � � � & � � � � � � � � � � � � � � � � �

Mechanical tachometer for FS15A3.

Tachometer drive mount for magnetic

switch (20 pulse/ rev)

Code RS

High speed option for low

speed distributors

Code HS

Page 40: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

= >

? @ A B C D E F G H I J K G L FP Series

Torque [ft-lb] = ����������� ����������������������

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Torque [ft-lb] = � !"#$#"�%&'()!� *�+�,-..����� � � '!��)'! /001 �

Power [horsepower] = �2�3����*�+�,����

�4�4

Displacement [in³/rev] = ��������2�3����*�+�,�

�����5��������2

Required motor flow rate [gal/min] = ����2�2���������������6����

4�-

Motor efficiency = 72������82����29�������82����29�� : � /00

Output shaft speed (rpm) = 2�2��*�29������ ;<=>����4�-�

2�2�������������?��6���@�5���,2A�����2

COMMON FORMULAE

Page 41: FS Series Catalog - SAI New Catalogs - SAi Hydraulic Motorssaihyd.com/pdf/FS.pdf · I FS Series Motors Crankshaft Design ... motors remain sensitive to # ows of 6 in³/min + motor

SAI Hydraulics Inc. 168 East Ridge Road, Suite 106

Linwood, PA 19061(610) 497-0190 FAX (610) 497-0197

SAI Hydraulics Canada LTD.6105 Boulevard Couture

St. Leonard, PQ H1P 3G7(514) 323-4552 FAX (514) 323-8780

www.saihyd.com