012 017 025 034 047 056 064 084 090 108 130 12.6 17.0 25.4 34.2 47.1 56.0 63.5 83.6 90.7 108.0 130.0

40 40 40 40 40 40 40 40 40 40 35 35 35 35 35 35 35 35 35 35 35 30

8800 8800 7000 7000 6300 6300 6300 5200 5200 5200 5200 8000 8000 6300 6300 5700 5700 5700 4700 4700 4700 4700 300 300 300 300 300 300 300 300 300 300 300

54 74 86 115 145 175 195 215 230 275 285 20 25 40 55 65 80 90 100 110 130 135

2.0 2.7 4.0 5.4 7.5 8.9 10.0 13.3 14.4 17.1 20.5

0.9 0.9 1.1 1.1 2.6 2.6 2.6 7.4 7.4 7.4 7.4

8.5 8.5 9.5 9.5 16.5 16.5 16.5 28.0 28.0 30.5 30.5

Displacement cm3⁄rev. Working pressuremax. intermittent MPamax. continuous MPaRevolutions max. intermittent rpmmax. continuous rpmmin. continuous rpmPowermax. intermittent kWmax. continuous kWStart torque theoreticalvalue Nm⁄MPaMass moment of inertia (x10-3) kg m2

Weight kg

Type

DataconcerningRPMarebasedonmaximumpremittedperiph-eralvelocityforthetaperedrollerbearings.

Sunfab SCM is a rangeof robust axial piston motors especially suitable for mobile hydraulics.

Sunfab SCMisofthebent-axistypewithsphericalpistons.Thedesignresultsinacompactmotorwithfewmovingparts,highstartingtorqueandhighreliability.

MotorSCM012-130 ISOGB

The SCMcoverstheentiredisplacementrange12-130cm3/revatamaximumworkingpressureof40MPa.MPa..

Sunfab SCM’s welldimen-sioned,doubletaperedrollerbearingspermithighshaftloadsandleadtoexcellentspeedcharacter-istics.

Intermittentpowerdataarebasedonmaximumcontinuousspeedandmaximumworkingpressure.

Continuouspowerdataarebasedonmaximumoutputpowerwithoutexternalcoolingofthemotorhousing.

Intermittentdutyisdefinedasfollows:max6secondsperminute,egpeakRPMwhenunloadingoraccelerating.

Sunfab SCM’shighlevelofreliabilityisbasedonthechoiceofmaterials,hard-eningmethods,surfacestructuresandthequalityassuredmanufacturingprocess.

°C 1000 2000 3000 4000 5000 6000 7000 8000 9000

012-034 N 75 0.55 0.27 0.18 0.14 0.11 0.09 0.08 0.07 0.06 H 75 2.46 1.23 0.82 0.61 0.49 0.41 0.35 0.31 0.27 V 90 0.55 0.27 0.18 0.14 0.11 0.09 0.08 0.07 0.06

047-064 N 75 0.55 0.27 0.18 0.14 0.11 0.09 0.08 H 75 2.46 1.23 0.82 0.61 0.49 0.41 0.35 V 90 0.55 0.27 0.18 0.14 0.11 0.09 0.08

084-130 N 75 0.38 0.19 0.13 0.10 0.08 0.06 H 75 1.72 0.86 0.57 0.43 0.34 0.29 V 90 0.38 0.19 0.13 0.10 0.08 0.06

SCM012-084,108-130 SCM012-034 SCM012-084,108-130 SCM012-130

SCM012-034 G SCM047-130 F

A C ESCM012-017 W25x1.25x18x9g W20x1.25x14x9gSCM025 W30x2x14x9g W25x1,25x18x9gSCM034 W30x2x14x9gSCM047–056 W35x2x16x9g W32x2x14x9g W30x2x14x9gSCM064 W35x2x16x9gSCM084–090 W40x2x18x9g W35x2x16x9gSCM108 W45x2x21x9g W40x2x18x9gSCM130 W45x2x21x9g

B DSCM012-017 ∅   25k6 ∅   20k6SCM025 ∅   30k6 ∅   25k6SCM034 ∅   30k6SCM047–056 ∅   35k6 ∅   30k6SCM064 ∅   35k6SCM084-090 ∅   40k6SCM108-130 ∅   45k6

Example

Type:MMotorwithfixeddisplacement

Size:012 Displacementcm3/rev.017025034047056064084090108130

Direction of rotation:W Independent

Shaft seal:N NitrileH Nitrile,highpressureV Viton,hightemperature

Versions, main data

Connection cover S Angled40°totheshaftcenterline K Combi R Sideportconnection V Angled90°totheshaftcenterline

Connections: ISOGthread Flange(SAEJ518,code62)

Type of shaft: Splineshaft(DIN5480)

Keyshaft(DIN6885)

Mounting flange: I4 ISO4-bolt(ISO3019-2)

Choice of shaft seal

Factorsaffectingthechoiceofshaftsealincludethehydraulicmotorhousingpressureandthedrainageoiltemperature.

Subject to design modifications without notice

Temp. Max. housing pressure MPa at rpm Motor SCM Code

Thedrainageoilshouldhaveamaximumtemperatureof75°CwithaNitrileshaftsealand90°CwithaVitonshaftseal.Thesetemperaturesmustnotbeexceeded.

CodeaccordingtoVersions,maindata.

(2x)

G 1⁄2

G3 ⁄4

80 h

8

20

5.75

(60) 20770.795

9 (4x)

8x7x32 6x6x32

W25

x1.2

5x18

x9g

W20

x1.2

5x14

x9g

M10

28

M10

2228

M6 22

28

M6 22

28

2528 2022

.5

4

40

4

4060 60

6

2848

6

2848

+10

G

40°

97

80 h

8

20

5.75

(60) 20970.795

9 (4x)

+10

40°

97

60114.5

50

1⁄2

G 1⁄2

G 1⁄2

22

53117

42

(128)

(2x)

G3 ⁄4

(2x)

G3⁄4

SCM 012-017Dimensions

SCM 025-034

G 1⁄2

(2x)

G3 ⁄4

100

h8

(75) 2097.25

25+10

40°

97

88.4118

11 (4x)

60114.5

50

8x7x40

W30

x2x1

4x9g

M123033

5

5075

2228

M12

2228

7

3560

G 1⁄2

(2x) 3

G⁄4

8x7x406

2853

M10

W25

x1.2

5x18

x9g

2528

5

5075

2228

M10

2228

53117

(128)

42

100

h8

(75) 2077.25

25+10

40°

97

88.4118

11 (4x)

G 1⁄2

G 1⁄2

(2x)

G3⁄4

SCM 047-064

G 1⁄2

7.25(92)

125

h8

242

40°

109

32+10

113.2142.5

13.5 (4x)

7.25(92)

125

h8

240

40°

109

32+10

146.5

5459

75

15375

23.8

23.8

50.8

50.8

19 (2x)19 (2x)

M10

(8x)

M10

(8x)

8x10x50

W35

x2x1

6x9g

3538 M12

5

6092

22

28

8

4173

8x7x50

W32

x2x1

4x9g

30

M12

22

28

33

5

6092

7

3567

7.25(92)

125

h8

70.8

248

40° 11

5

M10 (8x)

32+10

113.2142.5

13.5 (4x)

113.2142.5

13.5 (4x)

G 1⁄2

G 1⁄2

G 1⁄2

G 1⁄2

G 1⁄2

M12

2228

M12

28

W30

x2x1

4x9g

7

3567

153

50.8

19 (2

x)

23.8

22

M12

2228

SCM 090

SCM 084

SCM 108

SCM 108

SCM 108-130

SCM 130

AF F20° 20°

B

Kap

as 1

8 m

m fö

r hå

lsla

g

Generalinstructions

Shaft loadsThelifeofthemotorishighlydependentonthebearinglife.

Thebearingsareaffectedbyoperationconditionssuchasspeed,pressure,oilviscosityandfiltration.Externalloadontheshaft,aswellasitssize,directionandlocationalsoaffectthebearinglife.

Forcalculationofbearinglifeinspecialapplications,pleasecontactSunfabHydraulics.

InstallationThemotorhousingshouldbefilledwithoiltoatleast50%beforestarting.Thedrainagepipeshouldbeconnectedtotopmostdrainageoutlet.

Theotherendofthepipeshouldbeconnectedtotheoiltankatapointbelowtheoillevel.

PipingRecommendedoilvelocityinpressurelinemax.7m/sec.

FiltreringCleanlinessaccordingtoISOnorm4406,code16/13.

Radialload(N)

Bea

ring

life

(h)

PressureClockwise

rotation

PressureAnticlockwiserotation

Optimalforcedirectionofradialload

Temperatures/Housing coolingExcessivesystemtemperaturereducesthelifeoftheshaftsealandcanlowertheoilviscositybelowtherecommendedlevel.Asystemtemperatureof60°Candadrainflowtem-peratureof90°Cmustnotbeexceeded.Cooling/flushingofthemotorhousingcanbeneededtokeepthedrainflowtemperatureatanacceptablelevel.

Suggestedflow:MotorSCM Flushingl/min Cont.RPM 012-034 2-8 ≥2800 047-064 4-10 ≥2500 084-130 6-12 ≥2200

Hydraulic fluidsHighperformanceoilsmeetingISOspecifications–suchasHM,DIN51524-2HLP,orbetter–mustbeused.

Amin.viscosityof10cStisrequiredtokeepthelubrica-tionatasafelevel.

Theidealviscosityis20-40cSt.

Useful formulaes

Required flow rate Q = litres ⁄min.

Speed n = RPM

Torque M = Nm

Power P = kW

D = displacement, cm3⁄revolution

n = speed, revolution ⁄min

P = power, kW

Q = flow rate, litres ⁄min

ηv = volumetric efficiency

ηhm = hydraulic-mechanical efficiency

ηt = overall efficiency = ηv x ηhm

M = torque, Nm

∆p = pressure difference between the hydraulic motor inlet and outlet, MPaMPa

D x n1000 x ηv

Q x 1000 x ηv

D

D x ∆p x ηhm

6.3

Q x ∆p x ηt

60

Q

Qflush

Qflush

Qflush

Housingflushingcanbebuiltupwiththehelpofaflushingvalveortakendirectlyfromthereturnline.Whenthereturnpressureistoolowthisiscompensatedforbyacounterpressurevalve.Thetanklineisconnectedtothehighestpointasinthefigure.

Simplifiedcircuits

Flus

hing

val

ve

Cou

nter

pres

sure

valv

e

Counterpressurevalve

WARNINGWhen the motor is in use:1.Donottouchthepressurepipe2.Bewareofrotatingparts3.Themotorandpipescanreachhightemperatures