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The HHK S series provides an adjustable stroke of up to 1.5 m (4.9 ft) and up to 20% more efficiency than a traditional free-fall hammer of the same weight. The impact hammer is suitable for driving all types of piles: precast concrete, steel tube, sheet, and timber piles. The design of the hammer frame and drive cap makes for low impact noise and less vibration while piling. All impact energy is concentrated in the centre of the pile. The construction of the hammer makes it possible to use biodegradable hydraulic oils. The hammer is easy to connect to different hydraulic systems and can be operated either by the hydraulic system of the rig or by a separate power pack. Furthermore, it can be mounted on all kinds of leaders or be freely suspended.

Adjustable stroke of up to 1.5 m

Up to 20% more efficiency

Suitable for driving all types of piles

 
Model HHK16SB HHK20SB HHK25SB HHK28SB HHK30SB
RAM WEIGHT 16 000 kg (35 200 lb) 20 000 kg (44 000 lb) 25 000 kg (55 000 lb) 28 000 kg (61 729 lb) 30 000 kg (66 139 lb)
MAXIMUM ENERGY 262 kNm (193 241 ft-lb) 320 kNm (236 019 ft-lb) 400 kNm (295 025 ft-lb) 450 kNm (331 903 ft-lb) 500 kNm (368 781ft-lb)
DROP HEIGHT MAX 1 500 mm (4.92 ft) 1 500 mm (4.92 ft) 1 500 mm (4.92 ft) 1 500 mm (4.92 ft) 1 500 mm (4.92 ft)
BLOWS PER MINUTE 30–100 30–100 30–100 30–100 30–100
PRESSURE 231 bar (3 350 psi) 289 bar (4 192 psi) 244 bar (3 539 psi) 273 bar (3 960 psi) 290 bar (4 206 psi)
OIL FLOW (NOMINAL/MAX) 528/657 l/min (139/174 gpm) 528/657 l/min (139/174 gpm) 831/999 l/min (220/264 gpm) 831/999 l/min (220/264 gpm) 999 l/min (264 gpm)
STANDARD DRIVE CAPS Ø 1 370 / 1 320 mm (54 / 52 in)
Ø 1 720 mm (68 in) Ø 2 290 mm (90 in)
Ø 1 720 / 1 625 mm (68 / 64 in)
Ø 1 370 mm (54 in) Ø 2 290 mm (90 in)
Ø 1 720 / 1 625 mm (68 / 64 in)
Ø 2 290 mm (90 in)
Ø 1 720 / 1 625 mm (68 / 64 in)
Ø 2 290 mm (90 in)
Ø 1 720 / 1 625 mm (68 / 64 in)
Ø 2 290 mm (90 in)
EXTENSIONS 2 / 4t (4 400 / 8 800 lb) 3 / 5t (6 600 / 11 000 lb)
HAMMER LENGTH 7 440 mm (293 in) 8 240 mm (324 in) 8 838 mm (348 in) 9 065 mm (357 in) 9 383 mm (369 in)
HAMMER WEIGHT 29 690 kg (65 468 lb) 34 856 kg (76 844 lb) 46 800 kg (103 176 lb) 51 500 kg (113 538 lb) 55 200 kg (121 695 lb)
RECOMMENDED POWER PACK Junttan 20xCU Junttan 20xCU Junttan 20xCU Junttan 20xCU Junttan 20xCU

HHKSB-Serie models

 
HHK16S(/18/20) Datasheet (PDF) HHK 25S(/28) Datasheet (PDF)

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