A single beam bridge crane is a lifting equipment that is horizontally suspended above workshops, warehouses, and material yards for material lifting. Due to its two ends resting on tall cement columns or metal supports, it has a bridge like shape. The bridge of a single beam overhead crane runs longitudinally along the tracks laid on both sides of the elevated structure, making full use of the space below the bridge to lift materials without being obstructed by ground equipment. It is a type of lifting machinery with a wide range of applications and a large quantity.Application scopeSingle beam bridge crane is an important tool and equipment for achieving mechanization and automation of the production process in modern industrial production and lifting transportation. Therefore, single beam bridge cranes are widely used in indoor and outdoor industrial and mining enterprises, steel and chemical industries, railway transportation, port terminals, logistics turnover and other departments and places.Precautions(1) Each crane must be clearly labeled with its rated lifting capacity.(2) During work, no one is allowed to be on the bridge or transported with hooks.(3) No one is allowed to drive a crane without an operating license or under the influence of alcohol.(4) During the operation, it is necessary to concentrate and avoid talking, smoking, or doing unrelated things.(5) The car should be cleaned thoroughly; Do not place equipment, tools, flammable materials, explosive materials, and dangerous goods indiscriminately.(6) Overloading of cranes is not allowed.(7) The following situations are not allowed to be lifted: mechanical parts are overloaded; Signal unclear; Diagonal pull; Objects buried or frozen in the ground; There is someone on the suspended object; Flammable, explosive, and hazardous materials without safety protection measures; Overloaded liquid items; The steel wire rope does not meet the requirements for safe use; The lifting mechanism is malfunctioning.(8) When the crane operates on a line without obstacles, the hook or lifting device and the bottom of the lifted object must be at least 2 meters above the ground. If crossing an obstacle, it must be 0.5m higher than the obstacle.(9) For lifting objects weighing less than 50% of the rated lifting capacity, two mechanisms are allowed to operate simultaneously; If the lifting capacity of an object exceeds 50% of the rated lifting capacity, only one mechanism can operate.(10) Bridge cranes with main and auxiliary hooks should not raise or lower the main and auxiliary hooks simultaneously (with special exceptions).(11) Do not weld or hammer on the lifted object, and do not work underneath the object (if supported).(12) Inspection or maintenance work can only be carried out after a power outage and when a power outage operation sign is hung on the switch. If live working is necessary, safety measures must be taken for protection and a dedicated person must be assigned to take care of it.(13) Do not litter from the car.(14) Limit switches and interlock protection devices should be checked regularly.(15) It is not allowed to use limit switches as a parking method.(16) When there is a problem with the lifting brake, it is not allowed to lift heavy objects.(17) The suspended object is not allowed to run over people or equipment.(18) When welding a certain part of the crane, a dedicated grounding wire should be set up and the machine body should not be used as a grounding wire.(19) When the hook is in the lower limit position, there must be at least two safety rope loops left on the drum.(20) Cranes are not allowed to collide with each other, let alone use one crane to push another crane for work.(21) When lifting heavy objects, liquid metals, explosive and dangerous goods, it is necessary to slowly lift them 100-200mm off the ground to test the reliability of the brake.(22) The voltage of the lighting fixtures used for repair and inspection must be below 36V.(23) All electrical equipment enclosures of bridge cranes should be grounded. If the car track is not welded to the main beam, welding ground wire measures should be taken. The grounding wire can be made of galvanized flat iron with a cross-sectional area greater than 75mm2, bare copper wire with a cross-sectional area of 10mm2, or galvanized round steel with a cross-sectional area greater than 30mm2. The grounding position of the driver's cab or crane body should be more than two. The grounding resistance between any point on the crane and the neutral point of the power supply should be less than 4 Ω.(24) Regular safety technical inspections should be conducted, and pre inspection and pre repair work should be done well.

Universal bridge crane: a general purpose bridge crane, mainly including hook bridge crane, grab bridge crane, electromagnetic bridge crane, dual-purpose bridge crane, and three purpose bridge crane.Structural compositionThe general bridge crane is mainly composed of a large vehicle operating mechanism, a small vehicle operating mechanism, a lifting mechanism, and electrical equipment. The two ends of the bridge are supported by running devices on elevated tracks above the factory building or outdoor freight yard, and run longitudinally along the tracks; The crane trolley runs horizontally along the trolley track on the main beam of the bridge.Basic parametersThe basic parameters of a general bridge crane include:1. Rated lifting capacity. When there are main and auxiliary hooks, the rated lifting capacity is expressed in fractions, where the numerator represents the lifting capacity of the main hook and the denominator represents the lifting capacity of the auxiliary hook.2. Span. Also known as span, it refers to the distance between two parallel tracks on which a crane travels. The span of a crane is generally 1.5 meters smaller than that of a workshop, with each 3 meters of span being a level, ranging from 10.5 meters to 31.5 meters. A span greater than 31.5 meters is considered non-standard.3. Speed. The speed is determined by the busy workload of the crane, with lower speeds for light work and faster speeds for heavy work. The lifting capacity is small, but the speed can be faster. If the lifting capacity is large, the speed should be slowed down, otherwise it will be detrimental to safety.The speed of a general bridge crane includes four aspects:One is the speed of the large vehicle. There are three types of moving speeds for large vehicles: 80, 100, and 120m/min;The second is the speed of the car. The moving speed of the car is generally 40m/min;The third is the lifting speed of the hook. Generally 8-20m/min;The fourth is the lifting height. The standard lifting height of the hook is 12m, with each additional 2m being a level up to 32m.

There are three types of operating rooms for double girder bridge cranes: separated, closed, and insulated. The entrance to the control room platform of the double girder bridge crane is divided into three types: side, end, and top. H is the height increase of the large vehicle buffer. Double beam bridge cranes are divided into indoor and outdoor types. When placing an order, technical requirements such as high and low temperature of the working environment and the type of power supply should be specified. Additional overload limiters, large screen displays, and various protective devices have been added to further enhance safety during use.IntroductionThere are three types of operating rooms for double girder bridge cranes: separated, closed, and insulated.2. The entrance to the control room platform of the double beam bridge crane is divided into three types: side, end, and top.3. H is the height added to the buffer of the large vehicle.4. Double beam bridge cranes are divided into indoor and indoor types. When placing an order, technical requirements such as high and low temperature of the working environment and the type of power supply should be specified.5. Overload limiters, large screen displays, and various protective devices have been added to further enhance safety during use.6. Double girder bridge cranes generally use aerial operation methods, which are different from other ground operated cranes. Air operation refers to having a separate small operating room under the crane, while ground operation involves the operator holding a remote control.CharacteristicsThe double beam bridge crane is mainly composed of a bridge frame, a large vehicle operating mechanism, a small vehicle, electrical equipment, etc. According to the frequency of use, it is divided into three job levels: A5, A6, and A7. The operation and control of the hook bridge crane are all completed by the driver. Main parameters of double beam bridge crane:1. Lifting capacity: 5-10 tons, 16/3.2-50/10 tons, 75/20-100/20 tons, 100/32 tons, 125/30-250/50 tons, 300/40 tons, 350/75 tons, 400/80 tons, 600/150 tons2. Span: 10.5-31.5 meters, 13-31 meters.3. Lifting height: 6-22 meters.

European style electric hoist is a new type of electric hoist that our company has introduced and digested foreign * * technology, using imported configurations, new materials, and new processes to achieve lightweight, modular, maintenance free, and high-tech content.Adopting German imported lifting motors and reducers. The integrated compact design of the lifting motor, reducer, drum, and lifting limit switch saves users space. Modular design enhances the reliability of the mechanism while effectively reducing maintenance time and costs.It has faster and more lifting speeds and multiple pulley ratios to choose from. The standard trolley operating mechanism is controlled by a frequency converter, with a speed of up to 20 meters per minute, allowing for small swinging and precise positioning of the lifted items during the trolley's movement, ensuring safe and reliable lifting of precision and valuable items.         Lifting mechanismDesign strictly in accordance with the relevant standards of FEM.Technical features:Aluminum alloy reducer housingSmooth operation with low noiseLifetime lubrication (within the safe usage cycle)Double disc electromagnetic disc brake         1. Roll drumThe drum is made of high-quality seamless steel pipes processed by CNC machine tools. After precision machining, the rope groove on the drum, combined with the rope guide, can effectively prevent the occurrence of loose and tangled ropes.         2. Steel wire ropeThe steel wire rope adopts high-strength imported steel wire rope with a tensile strength of 2160 N/㎡, which has good safety and long service life.         3. Rope guideThe standard rope guide is made of engineering plastic with strong wear resistance and good self-lubricating performance, which greatly reduces the wear of the steel wire rope, the main load-bearing safety component, and enhances the safety of the lifting mechanism. At the same time, heavy-duty rope guides made of ductile iron can also be provided for different usage conditions.         1. Lifting motorThe lifting adopts a dual winding squirrel cage variable pole motor, achieving a speed ratio of 1:6 between fast and slow. The motor casing is made of aluminum alloy and has good heat dissipation performance. A fan is installed at the end of the lifting motor to enhance the cooling effect. Thermistors (or thermal switches) are embedded in the windings of all lifting motors to prevent possible motor overheating.The insulation level of the motor is F and the protection level is IP54.For variable frequency lifting motors, encoders can be installed directly on the fan shaft end of the motor.Technical features:Low starting current, high torqueSoft start, good acceleration performanceLong design lifespanTechnical parameters comply with FEM and HMI standardsHigh speed, low noise         2. BrakesThe lifting motor is equipped with a dual disc electromagnetic disc brake. The brake is integrated at the end of the motor, and when the motor is powered off, the brake will automatically close to prevent the load from slipping. The brake clearance of the brake does not need to be manually adjusted after being set (the clearance can be adjusted by the brake spring). When the thickness of the brake pad is lower than the set value, an additional monitoring switch can automatically sound an alarm and prompt the user to replace it. The dual disc electromagnetic disc brake is safe and reliable, with a braking torque not less than 1.8 times the rated torque of the motor, and a braking frequency of up to 1 million times. It does not require maintenance during the safe use cycle.Technical features:Fast action and high reliabilityMaintenance free, self-adjustingDustproof design, long service life         3. ReducerThe reducer housing is made of aluminum alloy material, which is lightweight and corrosion-resistant. The semi greasy lubricant inside the fully sealed box ensures that all gears receive sufficient lubrication, and there is no need to replace the lubricant during the designed safe use period.Each gear that has undergone surface hardening and high-precision grinding treatment ensures the smooth operation of the reducer.Technical features:Small size, light weightSmooth operation with low noiseCorrosion resistant, maintenance free         4. Security protectionThe upper and lower limits of the wire rope electric hoist adopt precise gear transmission limiters, which can reliably cut off the power circuit and stop the motor when the hook is in the upper (or lower) limit position.★ Overload protector: The wire rope electric hoist adopts an electronic overload protector (with a safety monitor) to ensure that the total lifting weight will not exceed the rated lifting capacity of the bridge; When the tension of the steel wire rope exceeds 105% of the rated value, the overload protection device will automatically cut off the lifting circuit.★ Security Monitor (optional): Multiple functions can be implemented according to user requirements:Calculate the remaining safe working cycle of the lifting mechanismAccumulated lifting working timeAccumulated overload timesAccumulated starting times of lifting motorOverheating protection and alarm for lifting motorOverload protection and alarmBrake pad thickness warningDisplay fault information and maintenance prompts                  Operating mechanism1. The operating mechanism adopts a three in one structure of "electric motor+gearbox+running wheel", with double-sided drive on the double beam small frame.2. Operating frequency conversion speed regulation reduces the shaking of suspended objects during operation, enhances operational safety, and reduces the time required for operation cycles, thereby improving production efficiency.3. All bearings are self-lubricating and oil containing, and their arrangement can effectively absorb horizontal forces.4. All gears of the reducer undergo surface carburizing, quenching, and hardening treatment. In order to reduce noise, all gears must be ground or shaved, and the gearbox does not require oil change during its service life.5. The reliability of the brake is over 1 million times.The protection level of the entire walking mechanism is IP54, and the insulation level of the driving motor is F.7. The entire system is designed according to maintenance free requirements.

electric double-beam bridge crane

Double girder gantry crane

Universal bridge crane: a general purpose bridge crane, mainly including hook bridge crane, grab bridge crane, electromagnetic bridge crane, dual-purpose bridge crane, and three purpose bridge crane.Structural compositionThe general bridge crane is mainly composed of a large vehicle operating mechanism, a small vehicle operating mechanism, a lifting mechanism, and electrical equipment. The two ends of the bridge are supported by running devices on elevated tracks above the factory building or outdoor freight yard, and run longitudinally along the tracks; The crane trolley runs horizontally along the trolley track on the main beam of the bridge.Basic parametersThe basic parameters of a general bridge crane include:1. Rated lifting capacity. When there are main and auxiliary hooks, the rated lifting capacity is expressed in fractions, where the numerator represents the lifting capacity of the main hook and the denominator represents the lifting capacity of the auxiliary hook.2. Span. Also known as span, it refers to the distance between two parallel tracks on which a crane travels. The span of a crane is generally 1.5 meters smaller than that of a workshop, with each 3 meters of span being a level, ranging from 10.5 meters to 31.5 meters. A span greater than 31.5 meters is considered non-standard.3. Speed. The speed is determined by the busy workload of the crane, with lower speeds for light work and faster speeds for heavy work. The lifting capacity is small, but the speed can be faster. If the lifting capacity is large, the speed should be slowed down, otherwise it will be detrimental to safety.The speed of a general bridge crane includes four aspects:One is the speed of the large vehicle. There are three types of moving speeds for large vehicles: 80, 100, and 120m/min;The second is the speed of the car. The moving speed of the car is generally 40m/min;The third is the lifting speed of the hook. Generally 8-20m/min;The fourth is the lifting height. The standard lifting height of the hook is 12m, with each additional 2m being a level up to 32m.

Universal bridge crane: a general purpose bridge crane, mainly including hook bridge crane, grab bridge crane, electromagnetic bridge crane, dual-purpose bridge crane, and three purpose bridge crane.Structural compositionThe general bridge crane is mainly composed of a large vehicle operating mechanism, a small vehicle operating mechanism, a lifting mechanism, and electrical equipment. The two ends of the bridge are supported by running devices on elevated tracks above the factory building or outdoor freight yard, and run longitudinally along the tracks; The crane trolley runs horizontally along the trolley track on the main beam of the bridge.Basic parametersThe basic parameters of a general bridge crane include:1. Rated lifting capacity. When there are main and auxiliary hooks, the rated lifting capacity is expressed in fractions, where the numerator represents the lifting capacity of the main hook and the denominator represents the lifting capacity of the auxiliary hook.2. Span. Also known as span, it refers to the distance between two parallel tracks on which a crane travels. The span of a crane is generally 1.5 meters smaller than that of a workshop, with each 3 meters of span being a level, ranging from 10.5 meters to 31.5 meters. A span greater than 31.5 meters is considered non-standard.3. Speed. The speed is determined by the busy workload of the crane, with lower speeds for light work and faster speeds for heavy work. The lifting capacity is small, but the speed can be faster. If the lifting capacity is large, the speed should be slowed down, otherwise it will be detrimental to safety.The speed of a general bridge crane includes four aspects:One is the speed of the large vehicle. There are three types of moving speeds for large vehicles: 80, 100, and 120m/min;The second is the speed of the car. The moving speed of the car is generally 40m/min;The third is the lifting speed of the hook. Generally 8-20m/min;The fourth is the lifting height. The standard lifting height of the hook is 12m, with each additional 2m being a level up to 32m.

Universal bridge crane: a general purpose bridge crane, mainly including hook bridge crane, grab bridge crane, electromagnetic bridge crane, dual-purpose bridge crane, and three purpose bridge crane.Structural compositionThe general bridge crane is mainly composed of a large vehicle operating mechanism, a small vehicle operating mechanism, a lifting mechanism, and electrical equipment. The two ends of the bridge are supported by running devices on elevated tracks above the factory building or outdoor freight yard, and run longitudinally along the tracks; The crane trolley runs horizontally along the trolley track on the main beam of the bridge.Basic parametersThe basic parameters of a general bridge crane include:1. Rated lifting capacity. When there are main and auxiliary hooks, the rated lifting capacity is expressed in fractions, where the numerator represents the lifting capacity of the main hook and the denominator represents the lifting capacity of the auxiliary hook.2. Span. Also known as span, it refers to the distance between two parallel tracks on which a crane travels. The span of a crane is generally 1.5 meters smaller than that of a workshop, with each 3 meters of span being a level, ranging from 10.5 meters to 31.5 meters. A span greater than 31.5 meters is considered non-standard.3. Speed. The speed is determined by the busy workload of the crane, with lower speeds for light work and faster speeds for heavy work. The lifting capacity is small, but the speed can be faster. If the lifting capacity is large, the speed should be slowed down, otherwise it will be detrimental to safety.The speed of a general bridge crane includes four aspects:One is the speed of the large vehicle. There are three types of moving speeds for large vehicles: 80, 100, and 120m/min;The second is the speed of the car. The moving speed of the car is generally 40m/min;The third is the lifting speed of the hook. Generally 8-20m/min;The fourth is the lifting height. The standard lifting height of the hook is 12m, with each additional 2m being a level up to 32m.

Universal bridge crane: a general purpose bridge crane, mainly including hook bridge crane, grab bridge crane, electromagnetic bridge crane, dual-purpose bridge crane, and three purpose bridge crane.Structural compositionThe general bridge crane is mainly composed of a large vehicle operating mechanism, a small vehicle operating mechanism, a lifting mechanism, and electrical equipment. The two ends of the bridge are supported by running devices on elevated tracks above the factory building or outdoor freight yard, and run longitudinally along the tracks; The crane trolley runs horizontally along the trolley track on the main beam of the bridge.Basic parametersThe basic parameters of a general bridge crane include:1. Rated lifting capacity. When there are main and auxiliary hooks, the rated lifting capacity is expressed in fractions, where the numerator represents the lifting capacity of the main hook and the denominator represents the lifting capacity of the auxiliary hook.2. Span. Also known as span, it refers to the distance between two parallel tracks on which a crane travels. The span of a crane is generally 1.5 meters smaller than that of a workshop, with each 3 meters of span being a level, ranging from 10.5 meters to 31.5 meters. A span greater than 31.5 meters is considered non-standard.3. Speed. The speed is determined by the busy workload of the crane, with lower speeds for light work and faster speeds for heavy work. The lifting capacity is small, but the speed can be faster. If the lifting capacity is large, the speed should be slowed down, otherwise it will be detrimental to safety.The speed of a general bridge crane includes four aspects:One is the speed of the large vehicle. There are three types of moving speeds for large vehicles: 80, 100, and 120m/min;The second is the speed of the car. The moving speed of the car is generally 40m/min;The third is the lifting speed of the hook. Generally 8-20m/min;The fourth is the lifting height. The standard lifting height of the hook is 12m, with each additional 2m being a level up to 32m.

New type of double trolley bridge crane

Electric double beam metallurgical crane