Machine Stable is an authorized distributor of the DEVELON brand under HD Hyundai.
PRODUCTS DESCRIPTION
The hydraulic impact hammer is designed for various piling operations, including Fixed Leader Type (round or square), Crane Suspended Type, Offshore Leader Type, and U-Type Leads. It is suitable for onshore and offshore pile driving conditions, as well as batter piles, underwater works over 5 meters, and sheet piling applications. With stable performance and precise control, it ensures reliable energy transfer and efficient operation in demanding environments.
PRODUCTS STRUCTURE

TECHNICAL PARAMETER

| Model | Parameter | AC-3 | AC-5 | AC-8 | AC-11 | AC-12 | AC-14 |
|---|---|---|---|---|---|---|---|
| Hydraulic Impact Hammer | Impact energy (KNm) | 36 | 60 | 120 | 165 | 180 | 210 |
| Working stroke (mm) | 1200 | 1200 | 1500 | 1500 | 1500 | 1500 | |
| Impact frequency (bpm) | 50/100 | 40/100 | 30/100 | 30/100 | 30/100 | 30/100 | |
| Ram Weight (kg) | 3000 | 5000 | 8000 | 11000 | 12000 | 14000 | |
| Lifting method | multicolumn | ||||||
| Size W/O Pile cap | Length (mm) | 4020 | 5150 | 6140 | 6790 | 7155 | |
| Width (mm) | 900 | 900 | 976 | 1100 | 1100 | 1100 | |
| Height (mm) | 1060 | 1060 | 1190 | 1290 | 1290 | ||
| Weight (kg) | 5800 | 8500 | 12000 | 16000 | 18000 | 21000 | |
| Pile cap | L×W×H (mm) | 895×895×745 | 895×895×745 | 920×920×900 | 976×976×1010 | 976×976×1010 | 1260×1200×1050 |
| Weight (kg) | 1100 | 1100 | 1250 | 1380 | 1380 | 2100 |
| Model | Parameter | AC-15 | AC-16 | AC-18 | AC-20 | AC-25 | AC-30 | AC-35 | AC-40 |
|---|---|---|---|---|---|---|---|---|---|
| Hydraulic Impact Hammer | Impact energy (KNm) | 225 | 240 | 270 | 300 | 375 | 450 | 525 | 680 |
| Working stroke (mm) | 1500 | 1500 | 1500 | 1500 | 1500 | 1500 | 1500 | 1700 | |
| Impact frequency (bpm) | 30/90 | 30/90 | 30/90 | 30/90 | 28/85 | 25/70 | 25/70 | 20/65 | |
| Ram Weight (kg) | 15000 | 16000 | 18000 | 20000 | 25000 | 30000 | 35000 | 40000 | |
| Lifting method | Single hydraulic cylinder lifting | Single hydraulic cylinder lifting | |||||||
| Size W/O Pile cap | Length (mm) | 7250 | 7400 | 7160 | 7530 | 7990 | 7950 | 8150 | 8804 |
| Width (mm) | 1100 | 1100 | 1100 | 1340 | 1340 | 1460 | 1674 | 1262 | |
| Height (mm) | 1290 | 1290 | 1290 | 1450 | 1450 | 1900 | 1860 | 1884 | |
| Weight (kg) | 22000 | 23000 | 25000 | 30000 | 36000 | 41000 | 47000 | 53000 | |
| Pile cap | L×W×H (mm) | 1260×1200×1050 | 1260×1200×1050 | 1260×1260×1050 | CUSTOM DESIGN | CUSTOM DESIGN | CUSTOM DESIGN | CUSTOM DESIGN | |
| Weight (kg) | 2100 | 2100 | 2100 | CUSTOM DESIGN | CUSTOM DESIGN | CUSTOM DESIGN | CUSTOM DESIGN |






