I don't like sitting in the office and watching PPTs. I prefer going to the testing site and experiencing the vibration of the machine myself. To select the best export model for my clients, I tested 10 mainstream jackhammer models on the market within a month. Eventually, the gasoline frog-type jackhammer that I chose completely conquered me in several key aspects.
First, I tested its vibration transmission efficiency. I found that many machines not only transmitted the vibration downward to the ground but also transmitted a large amount of it upward to the operator's arm. I couldn't tolerate such a design. The model I selected had high-elasticity shock-absorbing rubber installed at the armrest. After I personally operated it for two hours, my arm didn't have that numb feeling. I chose it because I care about every worker sweating on the front line.
Next, I tested its "cold start" performance. I placed the machine in a low-temperature environment for the whole night, and in the early morning the next day, I personally pulled the start rope. Many competitors needed to pull it five or more times, but the one I selected burst out with a clear roar on the second pull. I trust this reliability because I know that on the construction site, time is money, and I definitely don't want my clients to waste time on repairing the starter.
I also focused on its transmission belt lifespan. I continuously ran the machine under high-intensity working conditions for 50 hours, and then I removed the protective cover. I found that the high-strength V-type transmission belt I chose had almost no obvious wear or slack. I was so strict because I represent the reputation of Chinese manufacturing. Every machine I selected has my personal professional mark. I tell you it's good because I have checked every screw of it like a picky craftsman.
