ZWZA, ZWZ3 series DC electromagnetic drum brake
Application:ZWZA and ZWZ3 series DC electromagnetic drum brakes are mainly used for deceleration and parking braking of various mechanisms in electromagnetic cranes, DC drives or DC power grids for lifting, port loading and unloading, and metallurgical machinery. It is not recommended to use various lifting, port loading and unloading, and metallurgical machinery driven by communication.Compliance with standards:The connection dimensions and braking torque parameters of ZWZA and ZWZ3 series brakes comply with JB/ZQ4386-86, and the technical requirements comply with JB/T7685-2006 standard. This series is mainly used to replace the old ZWZ series products.The connection dimensions and braking torque parameters of ZWZA series brakes comply with the GB6334-86 standard. The technical requirements comply with JB/T7685-2006 standard. This series is mainly used to replace the old products of ZWZ3 and ZWZ □ series.Main features:▲ Interlocking type equal clearance device and automatic tile positioning device can always maintain equal clearance of both sides of the tile without adjustment, completely avoiding the phenomenon of one side of the brake pad floating against the brake wheel due to uneven clearance;The main swing hinge points are equipped with self-lubricating bearings, which have high transmission efficiency, long service life, and do not require lubrication during use;The brake spring is arranged inside the square tube and equipped with a ruler, allowing users to easily read the braking torque value, eliminating the hassle of measurement and calculation;▲ The brake pad is a (with card slot) card mounted integral molding structure, which is very convenient and fast to replace. It is equipped with brake pads of different materials such as semi metal (asbestos free) hard and semi hard, soft (asbestos free), etc. for users to choose from;The new type of armature positioning device can always maintain a good fit between the armature and the magnetic yoke;▲ Normally closed design, (power-off) spring brake, (powered on) electromagnetic release.Working conditions:◆ Environmental temperature: -20 ° C to+40 ° C;Relative humidity: ≤ 90%;Working system: continuous (S1-100%) and intermittent (S3-25%, 40%, 60%, operating frequency ≤ 720c/h) working system;Power supply voltage: DC 110V, 220V;There are no explosive hazardous media, gases or conductive dust in the surrounding working environment that can corrode metals and damage insulation.Basic parameters:● Product model: ZWZA-400,ZWZA-500,ZWZA-600,ZWZA-700.ZWZA-800、ZWZ3-400,ZWZ3-500,ZWZ3-600,ZWZ3-630,ZWZ3-700,ZWZ3-710,ZWZ3-800Applicable wheel diameter: 200-800mmBraking torque: 32-10000Nm
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