Oil Coolers

OMT SS Series

CROSS HYDRAULICS PTY LTD BLUE CATALOGUE Page 2.06

Features

OMT air/oil heat exchangers have been designed to use on the return line of hydraulic systems.

The special structure of the cooler element in alu-alloy increases the conductivity quality, and the brass welding process of the conduits allows a high thermic exchange and a good resistance to pressure, obtained by using qualified materials.

MaterialsFan Steel or hard plasticFan case SteelFan protection Steel or hard plasticRadiating Mass DataMaterial AluminiumNominal Pressure 25 barTest Pressure 35 barMaximum Temperature 120°CFluid CompatibilityMineral oils, hl, hlp, water-oil emulsionInstallationWe recommend to install a by-pass valve in parallel to the heat exchanger, for its protection during start up. Ensure there are no obstacles to the air flow.

Oil Coolers

OMT SS10 Series

CROSS HYDRAULICS PTY LTD BLUE CATALOGUE Page 2.07

Technical Features

Type Frequency Hz

Voltage V RPM Power kW

Dia. Fan

(mm)dB (A) L

(mm)Q Air

(m3/h)Cap. (lt)

Weight (kg) IP

01 50/60 230 2650/3000 0.050/0.046 170 63 125 500 0.28 6 4403 50/60 230/240 2750/3100 0.045/0.043 170 63 125 500 0.25 6 4412 DC 12 4000 0.080 167 64 158 550 0.25 5 6524 DC 24 4100 0.080 167 64 158 550 0.28 5 65

226

200

243

118

oN 4 holes Ø13

126156

55

42

176 Ø

Fan

18

G /h les

1 2 N 2 oo

L

45

176

201226

IN

Thermostat

oN 4 slots 9x13

36OUT

140

104

36

8.5

Suggested oil flow from 5 to 40 (ltr/min)

Correction FactorCST 10 15 20 32 40 50 60 80 100 200

F 0.51 0.66 0.76 1 1.22 1.4 1.6 1.9 2.1 3.4

Pres

sure

drop

Oil flow (lt/min)

)ap()rab(

0

0,1

0,2

0,3

0,4

0,5

0,6

0,7

10000

20000

30000

40000

50000

60000

70000

0 5 10 15 20 25 30 35 40 45

Spec

ific

diss

ipat

ion

heat(η)

Oil flow (lt/min)

(kcal/h °C)

25

30

35

40

45

50

55

60

65

70

5 10 15 20 25 30 35 40

AC

DC

Pressure Drop Diagram (32 cst)

Performance Diagram

Oil Coolers

OMT SS Series

CROSS HYDRAULICS PTY LTD BLUE CATALOGUE Page 2.12

Stock Code Working Temperature ContactT01 36-26°CT02 43-33°CT03 52-42°CT04 65-55°C NA/NOT05 75-65°CT06 85-75°CT07 95-85°C

1 2T

1/2” BSP

Ø 6

Ø 26

Ch 30

67

6183

4 5.2

6

5.9

DIN43650 Connector PG09 cable clamp

Electrical DataMaximum voltage 250VcaMaximum current 16ATolerance ±5°CMaximum fixed hysteresis 15°CElectrical connection DIN43650Protection degree IP65Maximum temperature 130°CMaterialsBody BrassContacts Silver plated

Morsetto 1: apre il circuitoall’aumentare della temperaturaMorsetto 2: chiude il circuitoall’aumentare della temperaturaComune: entrata comune

55

5.19

5.82

0 2

44.5 013.1

1097

8Ø

1/2 NPT CONICOCh. 22

83

12C

Electrical DataTemperature range 0°±90°CTolerance ±5kTemperature differential 6±2kDegree of protection IP40Insulation class ITemperature rate of change <1k/minMaximum head temperature 80°CMaximum sensing bulb temperature 125°CStorage temperature -15°C 55°CTime constant <1’Contacts rating C-1:10(2.5)A/250V~ C-2:6(2.5)A/250V~Output cutoff or switching contactsSwitch action 1BInstallation location normal environmentFairlead type M20x1.5

Temperature Switch

Bimetallic Fixed Temperature Switch

Stock CodeT08

Oil Coolers

OMT SS Series

CROSS HYDRAULICS PTY LTD BLUE CATALOGUE Page 2.13

How to Order

SS20 14 02 P

Type Fan MotorBimetallic fixed

temperature switch

Foot flanges / Electric connection

SS10 01 230V 50/60 Hz Single Phase 00 No Switch P With foot flanges

SS15 03 230/400V 50/60 Hz three phase 01 Fixed switch

36-26°C E With electric connection

SS20 14 230/400V 50/60 Hz three phase B14 02 Fixed switch

43-33°C PE With foot flanges and electric connection

SS24 12 12V CC 03 Fixed switch 52-42°C

SS30 24 24V CC 04 Fixed switch 65-55°C

G2 Arranged for hydraulic motor GR.2 05 Fixed switch

75-65°C

06 Fixed switch 85-75°C

07 Fixed switch 95-85°C

Adjustable switch

08 Adjustable switch 0-90°C