ContactsElectric Stacker contactors are generally divided into two parts:

1, walking contactor
2, pump contactor
Electric pallet truck Stacker contactor's main function is to protect the controller core isolation weak part, the principle is a small electrical current voltage input to control the big break, to control various actions stacker purpose.
Is the ultimate parts, such as wheel motors, such as the lifting motor with the central controller isolation between the important parts, no isolation contactor protection stacker controller will burn, contactor failure, will generally result in a stacker battery indicator, a horn sound, but according to a former retreat back does not respond, did not hear the "pop, pop" sound pull action. (Contactor action sounds, close Stacker can obviously hear the case)
Because electric stacker working in small DC voltage 24V, but the current state of the limit peak current 170A, the vehicle only part of the circuit in the wire part is controlled on-off contacts, so contacts requirements are relatively high . Especially the contact material requirements, quality-related contacts in a number of pull, release the aging process will lead to contacts in the contacts formed within the current hit potholes traces, which will result in a depression at the contact point less, the formation of fault of poor contact, is a significant pull popping sound, but still does not work.
After testing, electric stacker owners contactor must use imported parts, our factory is used in large quantities of U.S. imports Curtis contacts and weak control section to install two pipes relief, play a stabilizing circuit protection. After testing, the effect is obvious, long working hours without failure. The contactors are various brands of domestic instability, material effects No, not long after use of time, there will be contacts are loosening.
Import and domestic prices generally differ contacts 3-4 times. In electric stacker which circuit components, contactors are not expensive parts, but an important component part of the core.