GJ-1 A2B switch is used for lifting wire rope anti-volume limit an electrical automatic protection switch. It is an appropriate weight of the hammer supporting the use of hook up and down movement to hold up or disconnect or turn-on switch, put down the hammer to achieve the purpose of automatically cut off the hoist power supply connected braking system to limit rope over volume, and reach hook in the purpose of a certain height within the lift.
GJ-1 :to reach the peak normally open ( hook across the boom, loop disconnect)
GJ-3: to reach the peak normally closed (hook met crane, closed loop)
1, applies to DC and AC voltage 12 ~ 380V; Rated current: 5A.
2, rated current: 10A
3, supporting the external hammer weight: ≥ 1.7kg.
Our company was registered in the early of 2002, and is a national high technology enterprise, with the registered capital of 5 million Yuan, and annual sales value of more than 3000 million Yuan. We staff more than 60 people. Our company has a united, efficient and high quality research and development team, including 2 mechanical engineers, 3 electrical engineers, 5 electronic engineers, 2 software engineers and 15 experienced technical service engineers, independently specialized in singlechip automation instrument R&D and production. At the same time, our company keeps long-term technical cooperation with Huazhong University of science and technology, the newcomer survey design institute and Zhengzhou machinery institute of scientific research, to safeguard the domestic leading technical strength.
Our company independently develops such products as WTZ series crane microcomputer lifting weight limit devices (overload limit devices or load limit devices); WTL series crane microcomputer torque limit manometers; WTM series crane microcomputer integrated signal monitor WTF series microcomputer wind speed gauges, WTG series microcomputer intelligent height instruments and opening apparatus, WTSD series microcomputer speed limit manometers; DXZ series travel limit devices (height limit devices); WTS series microcomputer water meters, SAG-WT-1213 absolute photoelectric encoders, WSB series acoustic sootblowers, etc, totally 10 series and more than 40 kinds. Our products are widely used in power, chemical, steel making, metallurgical, construction, construction and other industries.