Lie 1: “A bigger excavator always needs a bigger hammer.”
Truth about our excavator mounted pile driver: YG150D fits an 8‑12 ton excavator. YG250D fits 20‑25 ton. YG350D fits 25‑35 ton. YG400D fits 35‑45 ton. YG450D fits 40‑55 ton. The attachment is sized to the carrier, not the other way around. Putting a 2.6‑ton piling attachment for excavator on a 10‑ton machine will tip it over. Putting a 1.2‑ton unit on a 50‑ton excavator wastes power. Match the model to your machine. That is what the table is for.
| Model | YG150D | YG250D | YG350D | YG400D | YG450D |
| Eccentric moment(kg*m) | 3.2 | 5.1/5.7 | 7.1 | 9.2 | 11 |
| Speed(rpm) | 2600 | 2600 | 2600 | 2600 | 2600 |
| Excitation force(t) | 24 | 38/42 | 52 | 68 | 81 |
| Operating pressure of oil system(bar) | 200 | 300 | 320 | 330 | 330 |
| Flow demand for hydraulic oil system(lpm) | 100 | 163 | 220 | 260 | 300 |
| Weight(t) | 1.2 | 1.6 | 2.4 | 2.5 | 2.6 |
| Excavator(t) | 8-12 | 20-25 | 25-35 | 35-45 | 40-55 |
Lie 2: “A higher excitation force is always better.”
Truth about our excavator pile driver attachment: Excitation force ranges from 24 tons (YG150D) to 81 tons (YG450D). More force sounds better. But too much force on soft soil makes the pile sink crooked. Too much force on thin steel sheet piles buckles them. The right force depends on your soil type, pile material, and depth. Sandy soil needs less force than clay. Steel sheet piles need less than concrete. Our YG250D offers two eccentric moment options — 5.1 or 5.7 kg·m — so you can dial the force up or down. An excavator mounted pile driver that lets you adjust is better than one that just screams power.
Lie 3: “Faster vibration speed drives piles quicker.”
Truth about our excavator mounted pile driver: All five models run at 2600 rpm. Same speed. Why? Because high‑speed vibration liquefies soil around the pile. That reduces friction. But there is a limit. Too fast, and the pile overheats. Too slow, and the soil does not loosen. 2600 rpm is the sweet spot for steel sheet piles, pipe piles, and concrete piles up to 10 meters long. We do not chase higher rpm numbers. We chase the speed that actually works on the ground.
Lie 4: “You need a separate power pack for every attachment.”
Truth about our piling attachment for excavator: The attachment runs off your excavator‘s hydraulic system. Each model lists the required oil flow and pressure. YG150D needs 100 lpm at 200 bar. YG250D needs 163 lpm at 300 bar. YG350D needs 220 lpm at 320 bar. YG400D and YG450D need 260 and 300 lpm at 330 bar. If your excavator delivers that flow, you are ready. No extra diesel tank. No tow‑behind power unit. Just plug into your machine‘s auxiliary circuit. An excavator pile driver attachment that uses the carrier‘s own hydraulics saves you weight, cost, and hassle.
Lie 5: “Vibratory drivers cannot handle hard clay or rock.”
Truth about our excavator mounted pile driver: Hard ground slows the sinking. That is true. But our units have a built‑in solution. The operating manual describes it: if the pile sinks too slowly, use the excavator arm to press down while vibrating. Or lift the pile a few centimeters and drop it with vibration. The impact plus vibration breaks through stiff layers. Two eccentric shafts inside the housing rotate in opposite directions. They create vertical vibration — not sideways shaking. That vertical force works with the excavator‘s downforce. A piling attachment for excavator that can push, vibrate, and drop is not limited to soft soil.
Lie 6: “Heavier attachment always means more durable.”
Truth about our excavator pile driver: Weights: YG150D (1.2t), YG250D (1.6t), YG350D (2.4t), YG400D (2.5t), YG450D (2.6t). Heavier models have larger eccentric moments (3.2 to 11 kg·m). That is a fact. But durability comes from the bearings, the hydraulic motor seals, and the rubber isolation blocks. Those are not measured in kilograms. Our units use dual eccentric shafts with hydraulic motor drive. The vibration is transmitted through a rubber isolation system that limits shock to the excavator arm. That rubber wears. Replace it. The steel housing does not crack if you stay within the recommended excavator size. An excavator mounted pile driver that matches your machine’s weight class will outlast one that is too heavy or too light.
Lie 7: “You cannot use it for pulling piles (extraction).”
Truth about our excavator mounted pile driver: Vibration works both ways. To drive, the vibration plus the weight pushes the pile down. To extract, the vibration plus the excavator‘s lifting force pulls the pile up. The same high‑frequency vibration liquefies the soil around the pile. Friction drops. The excavator arm lifts. The pile comes out. Contractors use our excavator pile driver attachment for temporary sheet piling on construction sites, cofferdams, and trench shoring. Drive in the morning. Extract in the afternoon. No second machine needed.
One truth they never tell you: Cheap pile drivers shake your excavator apart. They have poor rubber isolation. The vibration travels up the arm, into the slew ring, and into the hydraulic lines. Seals leak. Bolts loosen. The machine you trusted fails.
Our excavator mounted pile driver uses a proper rubber isolation block. Vibration stays at the pile head. The excavator feels a rumble, not a jackhammer. That is why matching the model to your excavator size (8‑12t up to 40‑55t) is not a suggestion. It is a requirement.
YG150D. YG250D. YG350D. YG400D. YG450D. Each has 2600 rpm. Each with adjustable eccentric moment (on select models). Each is designed for U‑type sheet piles, I‑beam sheet piles, Larsen piles, steel pipe piles, and precast concrete piles up to 10 meters long.
You bring the excavator. We bring the attachment that turns it into a pile-driving machine.