At various machinery exhibitions and customer follow-up visits, the most frequently asked question by me was: "Your electric impact tamper looks very quiet, but can its power really compete with that of a fuel engine?" In response to such doubts, I usually don't rush to defend myself but instead directly take them to the test site. I know that for those engaged in construction work, data and the actual depth of the holes are always more persuasive than sales pitches.
To thoroughly understand the upper limit of electric drive, I once personally hosted a comparative experiment. I selected a highly water-saturated clay soil - this was the nightmare of all compacting machinery. I had a classic four-stroke fuel tamper and my electric impact tamper compete on the same field. When I pressed the start button of the electric tamper, the instantaneous burst of torque made the grip of the handrail feel immediately stable. Unlike the fuel engine that needs to wait for the speed to rise, my electric motor can output peak torque at zero speed. I observed that in the first few jumps, the electric tamper could quickly bite the ground, and each landing sound was extremely solid, indicating that the energy was precisely transmitted to the deep soil.
I measured the final compaction data. Within the same ten-minute operation time, the area compacted by the electric impact tamper, its soil density completely reached the acceptance standards for municipal roads. I analyzed the technical logic and found that the output frequency of the electric motor was extremely stable. It wouldn't have power fluctuations like the fuel engine due to unstable throttle control or clogged air filters. This constant impact frequency (I set it at around 650 times per minute) generated a physical resonance effect, making the rearrangement of soil particles more efficient. My advice to those skeptics was simple: Don't be deceived by the volume of the sound. The real power comes from the stable frequency and deep penetration force.
I also tested its performance in slope conditions. Fuel engines often encounter problems with lubricant circulation in an inclined state, even causing cylinder seizure. But when I operated the electric tamper, I had no such concerns. Due to the absence of complex liquid fuel and lubrication systems, I could maintain full power output at a larger slope angle. I saw with my own eyes that my equipment still jumped powerfully on a 45-degree slope base. This reliability gave me confidence in the electricization plan.
If you are still struggling with the power issue, I suggest you pay attention to the "overload capacity" of the motor. The motor I selected has a 200% instantaneous overload protection, which means that when you encounter hard stones or extremely dry ground, the motor can instantly mobilize stronger current to overcome resistance, rather than directly cutting off the engine like the fuel engine. This "stronger when stronger" resilience is exactly what gives me the confidence to export this equipment globally.
