STERLING TECHNOLOGY
Sterling Hammer
Sterling Hammer is an existing most powerful hammer in the same class!
Job Applications
Significantly wider offering & 4 market segments enable further success!
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OPEN SPACE
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RIVERSIDE
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SAND FIELD
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WITH AUGER
SPECIFICATION
Sterling Hammer
| Model | Unit | SH25 | SH30 | SH40 |
|---|---|---|---|---|
| Excavator | ton | 20~26 | 28~36 | 36~50 |
| Hammer Weight | Kg / Lbs | 1520 / 3,550 | 1,810 / 3,990 | 2,050 / 4,519 |
| Extension boom weight | Kg / Lbs | 520 / 1,146 | 610 / 1,345 | 700 / 1,543 |
| Setting pressure | bar / PSI | 300 / 4,350 | ||
| Oil Flow | lpm / gpm | 150-170 / 40~45 | 180-220 / 48~58 | 240-260 / 63~69 |
| Centrifugal Force | kN / Tons | 530 / 58 | 580 / 64 | 940 / 103 |
| Frequency | RPM | 3,300~3,600 | 2,800~3,600 | 3,000~3,250 |
| Rotation | deg | 360˚ | ||
| Tilt angle | deg | 90˚ | ||
| Jaw open | mm / inch | 65 / 2.6 | ||
| Dimension [A x B x C] |
mm inch |
1094 x 636 x 1884 43.1 x 25.0 x 74.2 |
1094 x 636 x 1884 43 x 25 x 74.2 |
1,200 x 900 x 1,950 47.2 x 35.4 x 76.8 |
* Specifications above are subject to change without notice.
Strong points of Sterling Hammer
Faster and more powerful
- Faster penetration and puiling up than other vibratory hammers thanks to bigger and centered eccentric weight
Easy maintenance
Low maintenance cost
- Concise structure of components
Rotational mounting
- 360 hydraulic rotation system
Rigid and durability
- Durable structure and rigid rubber cushion
Easy installation & operation
- Concise operation electric kits
Comparison and type of Vibratory hammers
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“N” Company type
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Sterling Technology
| “N” Company type | Sterling Technology | |
|---|---|---|
| Feature | Twist correction hole in the middle of the body Free tilt clamp Arm & Jaw type, indirect clamp cylinder structure Free revolving mounting adapter | Twist correction hole on the mounting adapter Non tilt clamp. Arm & Jaw type clamp. Hydraulic revolving mounting adapter |
| Strong point | Low failure rate/Long life time of clamp cylinder | Low failure rate/Long life time of clamp cylinder One class higher vibratory power than “D” Company |
| Weak point | Low vibratory power Difficult to interlock sheet piles due to free tilt structure Sheet pile is likely to be bent due to free tilt structure Expensive | Non tilt structure – Need an assistant of operator |
Sterling Hammer’s feature
Sterling Hammer’s advantage
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Horizontal Structure
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Vertically Structure
| Sterling Hammer | Traditional Vibro hammer |
|---|---|
| Transverse cushion array minimize a chance of bending of hammer and piles./2 | Longitudinal cushion array causes bending of hammer and pile which leads to damage to cushions and piles. |
Sterling Hammer’s advantage : 15% higher efficiency than the same class hammer
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Conventional Hammer
Conventional Hammer
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15% higher efficiency
Sterling Hammer
| Solution | How to do & Effect |
|---|---|
| Centered double eccentric weights | Unique design of centered double eccentric weights allow better durability of bearings |
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Conventional hammer’s bearings
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Sterling hammer’s bearings
| Conventional hammer’s bearings | Sterling hammer’s bearings | |
|---|---|---|
| Distance from axis A | A=B+C, B > C | A=B+C, B = C |
| Center of gravity | B and C ≠ A/2 | B and C = A/2 |
| Weight distribution | “Bearing B” has more weight than “bearing A”. | Weight of “A bearing” and “B bearing” is the same. |
| Effect | Life time of both “A bearing” and “B bearing” is shorten due to imbalance of their weight. | Longer life time of both “A bearing” and “B bearing” |
Summary of Sterling Hammer’s selling point
| Feature | How to do & Effect |
|---|---|
| Transverse cushion array |
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| Most powerful hammer in class |
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| Centered double eccentric weights |
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| Low maintenance cost |
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