DongWoo DTH

D.W 530DongWoo DTH Hammer & Button Bit

Hammer Parts List

Top Sub

Washer(Top Sub)

O-Ring(Top Sub)

Check Valve

Spring

Washer(Shock Absorber)

Shock Absorber

Rigid Valve

O-Ring(Rigid Valve)

Wear Sleeve

Inner Sleeve

12

13

14

15

16

17

18

19

20

21

Piston

Foot Valve

Stop Ring(Piston)

O-Ring(Retainer Ring)

Retainer Ring

Bushing

Pin(Drive Sub)

Washer(Drive Sub)

Drive Sub

Button Bit

01

02

03

04

05

06

07

08

09

10

11

115-6 Kahak-Dong Kwangmyong-City Kyongkido KoreaTEL:+82-2-675-7405, +82-2-675-7423�4 FAX:+82-2-675-8791www.dwdth.com E-mail:dwdth@dwdth.com

Hammer SpecificationsRecommend Hole DIA

Hammer DIA

Cylinder Bore

Piston Stroke

Piston Weight

Length(w/o Bit)

Weight(w/o Bit)

Top Subs Available

609�838(mm)

530(mm)

410(mm)

150(mm)

410(Kg)

2,050(mm)

2,440(Kg)

API 8⅝Reg.pin

Air Consumption

150 PSI (10.5kg/㎠)200 PSI (14.0kg/㎠)250 PSI (17.6kg/㎠)

1760 CFM(50M3/MIN)2540 CFM(72M3/MIN)3500 CFM(99M3/MIN)

D.W 530

D.W 410DongWoo DTH Hammer & Button Bit

Hammer Parts List

Top Sub

Washer(Top Sub)

O-Ring(Top Sub)

Check Valve

Spring

Washer(Shock Absorber)

Shock Absorber

Rigid Valve

O-Ring(Rigid Valve)

Wear Sleeve

11

12

13

14

15

16

17

18

19

20

Inner Sleeve

Piston

Foot Valve

Stop Ring(Piston)

O-Ring(Retainer Ring)

Retainer Ring

Pin(Drive Sub)

Washer

Drive Sub

Button Bit

01

02

03

04

05

06

07

08

09

10

Hammer SpecificationsRecommend Hole DIA

Hammer DIA

Cylinder Bore

Piston Stroke

Piston Weight

Length(w/o Bit)

Weight(w/o Bit)

Top Subs Available

457�650(mm)

406(mm)

310(mm)

150(mm)

265(kg)

1,998(mm)

1,570(kg)

API 8⅝Reg.pin

Air Consumption150 PSI (10.5kg/㎠)

200 PSI (14.0kg/㎠)

250 PSI (17.6kg/㎠)

1,430 CFM(40.5M3/MIN)

2,120 CFM(60M3/MIN)

3,000 CFM(85M3/MIN)

115-6 Kahak-Dong Kwangmyong-City Kyongkido KoreaTEL:+82-2-675-7405, +82-2-675-7423�4 FAX:+82-2-675-8791www.dwdth.com E-mail:dwdth@dwdth.com

D.W 410

D.W 350DongWoo DTH Hammer & Button Bit

Hammer Parts List Top Sub

Washer(Top Sub)

O-Ring(Top Sub)

Check Valve

Spring

Washer(Shock Absorber)

Shock Absorber

Rigid Valve

O-Ring(Rigid Valve)

Wear Sleeve

11

12

13

14

15

16

17

18

19

20

Inner Sleeve

Piston

Foot Valve

Stop Ring(Piston)

O-Ring(Retainer Ring)

Retainer Ring

Pin(Drive Sub)

Washer(Drive Sub)

Drive Sub

Button Bit

01

02

03

04

05

06

07

08

09

10

Hammer SpecificationsRecommend Hole DIA

Hammer DIA

Cylinder Bore

Piston Stroke

Piston Wight

Length(w/o Bit)

Weight(w/o Bit)

Top Sub Available

431.8�558.8(mm)

353(mm)

260(mm)

125(mm)

186(kg)

1,850(mm)

1,180(kg)

API 8⅝Reg.pin

Air Consumption150 PSI(10.5kg/㎠)

200 PSI(14.0kg/㎠)

250 PSI(17.6kg/㎠)

1,280 CFM(36.3M3/MIN)

1,850 CFM(52.4M3/MIN)

2720 CFM(77M3/MIN)

115-6 Kahak-Dong Kwangmyong-City Kyongkido KoreaTEL:+82-2-675-7405, +82-2-675-7423�4 FAX:+82-2-675-8791www.dwdth.com E-mail:dwdth@dwdth.com

D.W 350

D.W 270DongWoo DTH Hammer & Button Bit

Hammer SpecificationsRecommend Hole DIA

Hammer DIA

Cylinder Bore

Piston Stroke

Piston Weight

Length(w/o Bit)

Weight(w/o Bit)

Top Sub Available

304.8�445(mm)

275(mm)

216(mm)

105(mm)

125(kg)

1,754(mm)

624(kg)

API 6⅝Reg.pin

Air Consumption150 PSI(10.5kg/㎠)

200 PSI(14.0kg/㎠)

250 PSI(17.6kg/㎠)

860 CFM(24.4M3/MIN)

1,100 CFM(31.2M3/MIN)

1,700CFM(48.1M3/MIN)

Hammer Parts List

Top Sub

Washer(Top Sub)

O-Ring(Top Sub)

Check Valve

Spring

Washer(Shock Absorber)

Shock Absorber

Rigid Valve

O-Ring(Rigid Valve)

Wear Sleeve

Inner Sleeve

12

13

14

15

16

17

18

19

20

21

Piston

Foot Valve

Stop Ring(Piston)

O-Ring(Retainer Ring)

Retainer Ring

Bushing

Pin(Drive Sub)

Washer(Drive Sub)

Drive Sub

Button Bit

01

02

03

04

05

06

07

08

09

10

11

115-6 Kahak-Dong Kwangmyong-City Kyongkido KoreaTEL:+82-2-675-7405, +82-2-675-7423�4 FAX:+82-2-675-8791www.dwdth.com E-mail:dwdth@dwdth.com

D.W 270

D.W 220DongWoo DTH Hammer & Button Bit

Hammer SpecificationsRecommend Hole DIA

Hammer DIA

Cylinder Bore

Piston Stroke

Piston Weight

Length(w/o Bit)

Weight(w/o Bit)

Top Sub Available

254�304.8(mm)

222(mm)

174(mm)

105(mm)

58(kg)

1,435(mm)

346(kg)

API 6⅝Reg.pin

Air Consumption150 PSI(10.5kg/㎠)

200 PSI(14.0kg/㎠)

250 PSI(17.6kg/㎠)

660 CFM(18.7M3/MIN)

980 CFM(27.7M3/MIN)

1,230 CFM(34.8M3/MIN)

Hammer Parts List Top Sub

Washer(Top Sub)

O-Ring(Top Sub)

Check Valve

Spring

Washer(Shock Absorber)

Shock Absorber

Rigid Valve

O-Ring(Rigid Valve)

Wear Sleeve

11

12

13

14

15

16

17

18

19

20

Inner Sleeve

Piston

Foot Valve

Stop Ring(Piston)

Bit Retainer Ring

O-Ring(Retainer Ring)

Pin(Drive Sub)

Washer(Drive Sub)

Drive Sub

Button Bit

01

02

03

04

05

06

07

08

09

10

115-6 Kahak-Dong Kwangmyong-City Kyongkido KoreaTEL:+82-2-675-7405, +82-2-675-7423�4 FAX:+82-2-675-8791www.dwdth.com E-mail:dwdth@dwdth.com

D.W 220

D.W 180DongWoo DTH Hammer & Button Bit

Hammer SpecificationsRecommend Hole DIA

Hammer DIA

Cylinder Bore

Piston Stroke

Piston Weight

Length(w/o Bit)

Weight(w/o Bit)

Top Sub Available

203�304.8(mm)

181(mm)

148(mm)

100(mm)

38(kg)

1,346(mm)

198(kg)

API 4½Reg.pin

Air Consumption150 PSI(10.5kg/㎠)

200 PSI(14.0kg/㎠)

250 PSI(17.6kg/㎠)

610 CFM(17.2M3/MIN)

810 CFM(22.9M3/MIN)

1,160 CFM(32.8M3/MIN)

Hammer Parts List

Top Sub

Washer(Top Sub)

O-Ring(Top Sub)

Check Valve

Spring

Washer(Shock Absorber)

Shock Absorber

Rigid Valve

O-Ring(Rigid Valve)

Wear Sleeve

11

12

13

14

15

16

17

18

19

Inner Sleeve

Piston

Foot Valve

Stop Ring(Piston)

Bit Retainer Ring

O-Ring(Retainer Ring)

Washer(Drive Sub)

Drive Sub

Button Bit

01

02

03

04

05

06

07

08

09

10

115-6 Kahak-Dong Kwangmyong-City Kyongkido KoreaTEL:+82-2-675-7405, +82-2-675-7423�4 FAX:+82-2-675-8791www.dwdth.com E-mail:dwdth@dwdth.com

D.W 180

D.W 140DongWoo DTH Hammer & Button Bit

Hammer SpecificationsRecommend Hole DIA

Hammer DIA

Cylinder Bore

Piston Stroke

Piston Weight

Length(w/o Bit)

Weight(w/o Bit)

Top Sub Available

152�203(mm)

137(mm)

110(mm)

100(mm)

25(kg)

1,266(mm)

103(kg)

API 3½Reg.pin

Air Consumption150 PSI(10.5kg/㎠)

200 PSI(14.0kg/㎠)

250 PSI(17.6kg/㎠)

410 CFM(11.6M3/MIN)

560 CFM(15.8M3/MIN)

725 CFM(20.5M3/MIN)

Hammer Parts List

Top Sub

Washer(Top Sub)

O-Ring(Top Sub)

Check Valve

Spring(Check Valve)

Washer(Shock Absorber)

Shock Absorber

Rigid Valve

O-Ring(Rigid Valve)

Wear Sleeve

Inner Sleeve

12

13

14

15

16

17

18

19

20

21

Piston

Foot Valve

Stop Ring(Piston)

Guide Sleeve(Bit)

Stop Ring(Guide Sleeve)

Bit Retainer Ring

O-Ring(Retainer Ring)

Washer(Drive Sub)

Drive Sub

Button Bit

01

02

03

04

05

06

07

08

09

10

11

115-6 Kahak-Dong Kwangmyong-City Kyongkido KoreaTEL:+82-2-675-7405, +82-2-675-7423�4 FAX:+82-2-675-8791www.dwdth.com E-mail:dwdth@dwdth.com

D.W 140

ITEMS SPECIFICATIONShock Absorber

Air Swivel

ROD

Hex’s Joint

Spring,Spring Pin

Auger Bit

Oil Lubricator, Adaptor, DTH Hammer outer Case(Screw type), Bando & Bando bushing etc.

Koreatech productes A1 good items

Joint Type SP-60H, SP-80H, SP-120H,SP-240H

NoBearing SP-60H, SP-80H, SP-120H

Bearing SP-60H, SP-80H, SP-120H

2 中管 SP-60H, SP-80H, SP-120H

Screw type 300mm-1500mm

PRD type 270mm-1500mm

SP-60H, SP-80H, SP-120H, SP-240H, 80M, 120M, 120HL, 200S

SP-60H, SP-80H, SP-120H

SP-60H, SP-80H, SP-120H

380mm-800mm

Head Office:1258 Guro-Bondong, Guro-Gu,Seoul, Korea.(4209, Ma-Dong, Joungang Yu Tong)Tel: +82-2-2625-4971~3 Fax: +82-2-2625-4974Mobil Phone: +82-11-270-9798E-mail: Koreatech@hananet.net