HAMMER

NPK Hydraulic Hammers

A better design that combines efficiency, reliability and serviceability.

  • 1. Excellent power-to-weight ratio
  • 2. Unique gas-charged piston maximizes hammer efficiency
  • 3. Simple, two-moving-parts design for reliability
  • 4. Separate ports for the NPK AutoLube system and an air line for underwater use
  • 5. Bottom tie rod nuts for easier serviceability (GH Models)
  • 6. Quick-change tool system with single round retainer pin
  • 7. Variety of tool configurations available
  • 8. Replaceable cylinder sleeves for easy, economical rebuild
  • 9. Tool bushings engineered for quick, easy replacement

Hydraulic Hammer Model and Specification

  MODEL EXCAVATOR WEIGHT (t)  
PH Series Light Class PH-1 2.0~3.5 Innovative
One-Piece Body Model
(EASY – Maintenance , LIGHT -  Wight  Body
POWERFUL & GOOD Performance )
PH-2 3.0~5.5
PH-3 4.0~8.0
PH-4 6.0~9.0
Medium Class GH-6 10~16 Excellent Power to weight ratio
GH-7A 15~18
GH-9 19~21
Medium to Heavy Duty Class GH-10 19~21 Higher impact energy provides greater productivity
GH-12 22~28
GH-15 29~38
GH-18 39~48
Heavy Duty Class GH-23 50~60 Suitable for Quarry and demolition work
GH-30 60~80
GH-40 90~100
GH-50 120


Model

EXCAVATOR WEIGHT

Operating Weight

Oil flow

Blow Frequency

Min. Excavator's refief setting pressure

 

(t)

(Kg)

(l/min)

(bpm)

(Mpa)

PH-1

2.0~3.5

                        150

25~55

 550~1,100

25~

PH-2

3.0~5.5

                        180

25~60

500~1,200

25~

PH-3

4.0~8.0

                        315

45~100

500~1,150

25~

PH-4

6.0~9.0

                        435

50~120

400~1,000

25~

GH-6

10~16

                     1,000

90~150

450~800

25~

GH-7A

15~18

                     1,460

100~180

400~750

25~

GH-9

19~21

                     1,700

150~200

500~650

25~

GH-10

19~21

                     1,810

165~210

430~550

25~

GH-12

22~28

                     2,355

170~220

400~520

25~

GH-15

29~38

                     2,860

200~250

350~450

25~

GH-18

39~48

                     3,350

220~290

300~400

25~

GH-23

50~60

                     4,525

250~320

300~400

25~

GH-30

60~80

                     5,470

280~350

310~390

25~

GH-40

90~100

                     7,750

300~400

240~330

25~

GH-50

120

                  11,300

350~450

210~280

25~