STERLING TECHNOLOGY
STERLING
MULTI-SIDE GRIP PILE DRIVERS
Side grip type excavator-mounted vibratory pile driver

Job Applications
Significantly wider offering & 4 market segments enable further success!
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SEA SIDE
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RIVER SIDE
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HEAD ROOM CONSTRUCTION
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CONFINED SPACE
SPECIFICATION
Side grip type excavator-mounted vibratory pile driver
Model |
Unit |
SG15 |
SG25 |
SG30 |
SG40 |
|---|---|---|---|---|---|
Suitable Excavator |
ton |
14~22 |
20~26 |
28~36 |
36~50 |
Weight (Excl. Mounting Adapter) |
Kg / Lbs |
1,974 / 4,299 |
2,820 / 6,217 |
3,300 / 7,276 |
3,800 / 8,378 |
Setting Pressure |
bar / PSI |
300 / 4,350 |
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Oil Flow |
lpm / gpm |
90-108 / 24~29 |
150-170 / 40~45 |
180-220 / 48~58 |
240-260 / 63~69 |
Centrifugal force |
kN / Tons |
313 / 34 |
530 / 58 |
580 / 64 |
940 / 103 |
Frequency |
RPM |
2,800~3,370 |
3,300~3,600 |
2,800~3,600 |
3,000~3,250 |
Rotation |
deg |
360˚ |
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Dimension (A x B x C) |
mm inch |
1,247 x 1,009 x 2,486 49.09 x 39.72 x 97.87 |
1,510 x 1,039 x 2,765 59.5x40.9x108.9 |
1,534 x 1,039 x 2,886 60.4x40.9x113.6 |
1,750 x 1,039 x 3,070 68.9x40.9x120.9 |
Tilting degree |
deg |
±30 |
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Bottom Jaw open |
mm / inch |
65 / 2.6 |
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Side clamp open |
mm / inch |
288 / 12.33 |
312 / 12.28 |
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Min Pile Grip dia |
mm / inch |
76 / 3 |
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Max Pile Grip dia |
mm / inch |
610 / 24 |
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* Specifications above are subject to change without notice.
FEATURES FOR STERLING SIDE GRIP
Available for a wide ranges of piles
- Sheet piles, H beams, I-H beams, and round-piles
Versatile piling at headroom job site
Versatile piling at a confined space job site
Precise and accurate side clamping
- 360-degree Swivel rotatable grip pads enable precisely and accurately clamping
Quicker and more powerful
- Faster penetration and extraction than other side grip pile drivers thanks to bigger and double eccentric weight
Low maintenance cost & easy maintenance
- Concise structure of components
Rigid and durability
- Balanced counter weighs and rigid rubber cushion
Model selection guide
Please refer to the following selection table for selecting suitable Sterling side grip models for the excavators.
| Excavator size Pile size (length/weight) |
36-50 ton | 28-36 ton | 20~26 ton | 13~22 ton |
|---|---|---|---|---|
| 6m/2800kg | SG40 | |||
| 12m/1900kg | ||||
| 16m/1300kg | ||||
| 8m/2300kg | SG30 / SG25 | |||
| 12m/1800kg | ||||
| 16m/1200kg | ||||
| 6m/1200kg | SG15 | |||
| 8m/1000kg | ||||
| 10m/900kg | ||||
| Suitable piles | ||||
| Sheet piles | width 400-1200mm, depth 200mm | |||
| H-beams/Round-piles | Max 500x300 / Max Dia 610mm | |||
※ Please take into consideration for oil flow/pressure, lifting capacity/stability of excavators, soil and site conditions.
| Model | Unit | SG15 | SG25 | SG30 | SG40 |
|---|---|---|---|---|---|
| Bottom Jaw open | mm / inch | 65/2.6 | |||
| Side clamp open | mm / inch | 337 / 13.2 | |||
| Min Pile Grip Ø | mm / inch | 76/3 | |||
| Max Pile Grip Ø | mm / inch | 610/24 | |||
※ Specifications above are subject to change without notice.
CLAMP OPTION SPECIFICATION
The following clamp selection guide provides the general guidelines for selecting the correct clamp for the different types and sizes of piles
CLAMP OPTION SPECIFICATION
Higher productivity than hydraulic breaker
Thanks to its interchangeable side clamp system, the Sterling Side Grip pile driver can handle all types of piles with its multiple clamps, and it offers quick transfer capability between various applications. Round pile clamp(S) and round pile clamp(L) are an option.
NO NEED TO CHANGE ROUND CLAMP(L) UPTO Ø610mm / 24inch
Contact us for bigger than Ø610mm / 24inch - sterling@sterlingripper.com
CONVENTIONAL PILE DRIVER vs STERLING SIDE GRIP
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Conventional pile driver

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Sterling Side grip pile driver

| Conventional Ripper’s bearings | Sterling Ripper’s bearings | |
|---|---|---|
| Advantages | - | High vibratory power at the same size of bearings |
| - | At least two times longer life time of bearings | |
| - | Higher durability at hard-rock job sites |
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Conventional pile driver

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Conventional pile driver Sterling Side grip pile driver

| Conventional pile driver | Sterling Side grip pile driver | |
|---|---|---|
| Feature |
|
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| Strong point | Low price |
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| Weak point |
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Sterling Side clamping
360-degree Swivel rotatable grip pads enable precisely and accurately clamping - Precise and accurate side clamping clamping
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Conventional Side grip clamping unit

The use of fixed jaws in a four-pad, dual-arm clamping system may lead to insufficient gripping accuracy. Repeated gripping errors can result in structural damage, including cracks in the clamping cylinder and arms.
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Sterling Side grip clamping unit

With 360-degree swivel capability and multi-angle tilt functionality, the jaws can securely grip piles even in corner positions by pivoting and holding firmly. This ensures precise and accurate clamping, even on rough or uneven surfaces.
Solution of Sterling Ripper for Vibratory Ripper’s drawback
| 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 Pile driver's bearings

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Sterling Side grip's bearings

| Conventional Pile driver's bearings | Sterling Side grip'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” |










