1. Is it necessary to add counterweight to order 22 meter long arm?
A: first of all, according to the excavator supporting machine weight, see if it can meet the requirements of 22 meter long arm, and then increase the counterweight according to the proportion.
2. What should we pay attention to when refitting the lengthening arm?
A: from the customer's point of view, we generally suggest that the newly purchased excavator should be refitted with the lengthening arm through negotiation with the manufacturer, because the newly purchased excavator is beyond the warranty period, and it is easy to have sales and service disputes with the manufacturer or agent of the complete machine. For the excavator with a long time, we suggest that the lengthening arm should be refitted, because the service life of the machine is long and the performance of all aspects is poor, Especially the hydraulic system. On the basis of the standard arm, the lengthened arm of the excavator has a certain weight gain, and the load of the old excavator is limited, so it is necessary to select the appropriate length, and the use efficiency is high after refitting the long arm excavator.