OIL-FREE COMPRESSORS

“Supplying perfectly oil-free compressed Air”

http://www.hanshin.co.kr

Oil-free Double Stage Screw Compressor

CDH series is a revolutionary oil-free screw compressor developed by HANSHIN advancing to a world class compressor company having 37 year compressor manufacturing experience, adopting oil-free airend block of German GHH-RAND who developed the oil-free airend block first in the world in 1952 year. We would like to invite you to the world of a real clean air where you have been longing for.

CDH-460W

COMPRESSED AIR SYSTEMS

CDH-75W

Advantages

▶ ULTRA COATING ROTORS

This coating offers highly efficient corrosion protection even under extreme conditions (approx. 300℃). In addition, it is a decisive factor for improving efficiency : reducing discharge temperature of the airend, increasing volume flow while decreasing power consumption. ▶ STAINLESS STEEL HIGH PRESSURE STAGE ROTOR The stainless steel HP rotor pair is rust-free from condensed water. ▶ INLET BOLW-DOWN SYSTEM Switching of loading & unloading by oil pressure shortens the entire system cycle, thereby reducing power consumption cost. Besides, the maintenace is easy and economical with pneumatically operated.

Features

▶ Absolutely

oil free compressed air cooling type(air/water cooled) ▶ Simple installation with low cost ▶ Minimized maintenance cost ▶ High reliability, performance and efficiency ▶ Designed and manufactured according to ISO 9001 ▶ Easy operation and maintenance ▶ Minimized noise level package ▶ Smoother and quieter operation ▶ Versatile

3 Hanshin Industrial Air Compressors

Airend ▶ Absolutely

oil free compression ▶ Low power consumption ▶ No balance pistons ▶ No rubber diaphragm ▶ Efficient jacket cooling (water or oil) ▶ Slower turning of rotor ▶ Smoother and quieter operation ▶ Less vibration ▶ Leak free oil drains from airend to gear box ▶ Leak free input shaft seal design ▶ Stainless steel HP rotor pair ▶ Enhanced coating of air passages, housings and rotors

■ Low pressure stage LP 1. Large capacity 2. Optimum profile (asymmetrical) : male 3 teeth, female 4 teeth 3. Special coating (no teflon) - resistant against high temperature and pressure - excellent sliding properties 4. Improved sealing effect

■ High pressure stage HP 1. High pressure increase 2. Optimum profile (asymmetrical) : male 4 teeth, female 6 teeth 3. Special coating (no teflon) - resistant against high temperature and pressure - excellent sliding properties 4. Improved sealing effect

■ Highly reliable sealing system

retaining ring

1. Rotors to be fixed in defined position by axial & radial bearings 2. Clearance between rotors to be kept costant by timing gear 3. No air leakage losses from compression chamber via rotor journals 4. No lube oil from bearing to the compression chamber (negative thread)

casing

shaft

oiltank Oil

splash ring

vent hole Air

angular ring

oil-retaining ring

sealing ring

spacer ring

COMPRESSED AIR SYSTEMS

Inlet/Blow down system Movement of inlet on/off valve causes action of blow-down unloading valve. The actuating cylinder of unloading valve is connected to oil system of compressor block. The oil pump is sufficiently sized. (Pneed=2.5bar g, Pposs=25.0bar g) atmosphere

Oil tank

Air inlet

HP downstream

LP upstream

Full loading / No loading mechanism Switching of loading & unloading by oil pressure shortens the system cycle, thereby reducing power consumption cost. Besides, the maintenace is easy and economical with pneumatically operated.

Oil pump The oil pump is driven by driving shaft of airend and delivers oil to actuating cylinder of inlet/blow-down system via oil cooler and oil filter with an optimum volume, thus prolonging the life time of rotors and bearings.

a) Full loading - oil pressure of magnetic valve ① on/off valve opens ② plated of unloading valve closes ③ full-load operation

Oil pressure

b) Unloading - no oil pressure of magnetic valve ① on/off valve colses ② unloading valve opens ③ unloading operation

5 Hanshin Industrial Air Compressors

■ AIR FLOW DIAGRAM

SYMBOLS

DESCRIPTION

LP

1st STAGE

HP

2nd STAGE

CV

CAPACITY CONTROL VALVE

IC

INTER COOLER

AC

AFTER COOLER

F1

SUCTION AIR FILTER

S1

1st DISCHARGE SILENCER

S2

2nd DISCHARGE SILENCER

S3

PURGE SILENCER

M1

MAIN MOTOR

PSV

SAFETY VALVE

SOL

3-WAY SOLENOID VALVE

V1 DS1,DS2

CHECK VALVE 1st / 2nd DRAIN SEPARATOR

PI1

1st DISCHARGE PRESSURE GAUGE

PI2

2nd SUCTION PRESSURE GAUGE

PI3

2nd DISCHARGE PRESSURE GAUGE

PSHL

AIR PRESSURE SWITCH

PDI1

SUCTION FILTER DIFFERENTIAL PRESSURE GAUGE

TE1,2,4,5

TEMPERATURE SENSOR

TIC1

1st DISCHARGE TEMP. INDICATOR & SWITCH

TIC2

2nd DISCHARGE TEMP. INDICATOR & SWITCH

TIC4

MOTOR BEARING TEMP. INDICATOR & SWITCH(FRONT)

TIC5

MOTOR BEARING TEMP. INDICATOR & SWITCH(REAR)

TI1

1st DISCHARGE TEMPERATURE GAUGE

■ OIL FLOW DIAGRAM SYMBOLS

DESCRIPTION

LP

1st STAGE

HP

2nd STAGE

CV

CAPACITY CONTROL VALVE

OC

OIL COOLER

F2

OIL FILTER

S3

PURGE SILENCER

M1

MAIN MOTOR

OP

OIL PUMP

SOL

3-WAY SOLENID VALVE

PV

OIL RELIEF VALVE

PR

OIL REGULATING VALVE

OT

OIL TANK

LG

LEVEL GAUGE

PI4

LUBE OIL PRESSURE GAUGE

PI5

OIL PRESSURE SWITCH

PSL

LOW OIL PRESSURE SWITCH

PD12

OIL FILTER DIFFERENTIAL PRESSURE GAUGE

TE3

TEMPERATURE SENSOR

TIC3

OIL TEMPERATURE INDICATOR & S/W

B

BREATHER

COMPRESSED AIR SYSTEMS

■ CONTROL & MONITORING SYSTEM PRESSURE GAUGE ▶ Air inlet filter condition

indicator ▶ First stage air discharge

pressure gauge ▶ Second stage air

discharge pressure gauge ▶ Oil pressure gauge ▶ Oil filter condition

indicator

TEMPERATURE GAUGE ▶ First stage air discharge

▶ Compressor motor overload shutdown and light ▶ Oil pump motor overload shutdown and light ▶ Fan motor overload shutdown and light ▶ High first stage air discharge temperature shutdown and light ▶ High second stage suction temperature shutdown and light ▶ High second stage air discharge temperature

temperature display ▶ Second stage air inlet

temperature display ▶ Second stage air discharge temperature display ▶ Oil temperature display

shutdown and light

GAUGE

▶ High oil temperature shutdown and light ▶ Low oil pressure shutdown and light ▶ Alarm bell ▶ Bell cancel switch ▶ Reset switch ▶ Start / Stop push buttons ▶ Emergency push button ▶ Low water flow shutdown and light (water cooled)

▶ Oil level gauge ▶ Running timer , load timer ▶ Power light ▶ Oil pump run light ▶ Compressor run light ▶ Compressor load light ▶ Fan run light ▶ Fault light ▶ Manual unload light and switch ▶ Lamp test switch ▶ Water temperature and flow light

※ ELECTRONIC MICOM TYPE MONITOR PANEL IS OPTIONAL.

■ TECHNICAL SPECIFICATIONS CDH 55

CDH 75

CDH 90

CDH 110

CDH 132

CDH 160

CDH 180

CDH 220

CDH 270

CDH 300

CDH 315

CDH 370

CDH 420

2

8.5

12

14.4

17

22.4

26.2

31

36.7

45.8

49.5

51.9

57.1

69.9

2

7.8

11

13

17

19.8

24.5

28.1

36.6

43.5

45.7

49.5

56.9

69.7

kgf/cm

2

7.3

9.7

11.9

14.6

-

21.8

-

28.7

-

41.3

43.5

-

-

KW

55

75

90

110

132

160

180

220

270

300

315

370

420

36.6

43.5

MODELS ITEMS 7.5

kgf/cm

FAD

8.5

3

kgf/cm

(m /min)

10.5

Motor

V

220/380/440

Starting Cooling Type 3

3300/6600

220/380/440/3300 Y- △/Reactor

Reactor

Air Cooled/Water Cooled

Water Cooled

Cooling Water(m /hr)

-

Discharge Pipe Dia(A)

50

65

80

100

Cooling Pipe Dia(A)

-

50

65

80

Lubricant Charge(L)

22

40

75

120

A(mm)

2000

2500

3200

4500

B(mm)

1450

1750

1800

2500

C(mm)

1700

2200

2200

2300

Dimension

Weight(kg)

7.9

2600

2700

9.7

3100

7.6

3250

12.6

3500

15.3

3700

18.4

4200

30

4300

27.6

4500

29.7

4700

32

4800

6700

7000

C

A

B

7 Hanshin Industrial Air Compressors

ANSAN, KOREA

QINGDAO, CHINA

Design&Printing (031)316-1999

#1122-6 SHINGIL-DONG, DANWON-GU, ANSAN CITY, GYEONGGI-DO, KOREA TEL : (82-31) 493-8855 FAX : (82-31) 493-6108~9

JIAOBEI, GONGYEYUAN, JIAOZHOU CITY, QINGDAO, CHINA TEL : (86-532) 8324-2345~7 FAX : (86-532) 8324-2348

www.hanshin.co.kr

NO/E-06.01