Top Quality Remote Control LH Model Double Girders or Beams Electric Hoist EOT Crane

Product introduction：

LH model Electric Hoist Double Girder Overhead Traveling Crane is a light duty lifting equipment, it is widely used in factories,plants,warehouse, workshop to lift goods or assemble machine,it is not frequently used in a day.

LH model Electric Hoist Double Girder Overhead Traveling Crane is composed with Girder frame, Crane traveling device, and trolley with lifting and moving device, festoon cable and electric control system. The control mode is pendent line control,remote wireless control,cabin control. The lifting unit is electric hoist. The working class is A3 or A4. There are paved rail for the trolley move on the main girder.

The crane girders are of welded girder construction. This result in lower dead weights with a high degree of vertical and horizontal rigidity and smaller wheel loads being transmitted to the crane runway.

Mechanical parts:

1.Both sidesof all the steel plate of crane are pretreatedby pretreatment production line,Sand blasting– Primer spray–Primer drying. Eliminate the inner stress of steel plate, increase the adhesive force of the steel structure. Ensure the appearance and anti corrosion quality.

2.Steel plate cutting adapt whole sets laser CNC plasma cutting machine from Germany, very fast cutting speed, little deformation, High precision,  Deviation could be controlled within 1mm, it insure the raw material at high quality standard and can reach top level in the industry.

3.The welding of main beam adapt high efficiency and intelligent welding robot, Henan Mine Crane Co.,Ltdare No.1 enterprise who adapt this high technology machine. The welding joint inside of the main beam adapt advanced MAG welding, adapt Ar+CO2 mixed protective gas, The 4 welding joint outside of the main beam adapt automatic submerged-arc fillet welding machine.

4.The welding of main beam adapt radiographic inspection and ultrasonic flaw detection for the welding joint and fillet weld position

5The welding of end beam adapt double gun gantry submerged arc welding, highly welding quality ensure the stable quality of the crane effectively.

6.Adapt the steel plate rolling drum and wireless steel tube, Henan Mine Crane Co.,LTD has a set of steel plate rolling drum producing and processing line which is industry-leading level. From prebending by 1250t press machine, to Edge rolling by three-roller plate roll, at last the longitudinal joint and circumferential joint of drum are welded by automatic welding center and drum processed by heavy duty CNC horizontal machine tool.

7.The wheel and wheel axle are treatedby high efficiency quenching and tempering, it can eliminate the internal stress effectively and ensure the processing precision,The trolley frame, drum, and bogie frame and related big welding structure are treated by Annealing in the natural gas annealing furnace to ensure the Machining accuracy after welding. Henan Mine Crane Co.,Ltdhave car bottom natural gas annealing furnace, the furnace chamber inside size (length*width*height) is 10000mmx4000mmx4000mm, this annealing furnace can satisfy the Stress-Relieving annealing treatment after welding for the trolley frame, drum, bogie frame, balance beam, spreader and all kinds of welding structure on the crane, Only Henan Mine Crane Co.,Ltd has this ability in China Crane Hometown.

8According to the demand of customer, our crane could be equipped with the high technology anti-swing mechanism which has been apply as the patent of our Henan Mine Crane Co.,Ltdgroup. This is theleading level technology. Henan Mine Crane Co.,Ltd take the head in achieve the best and better management, best and better manufacturing, promote the further enhance for the product quality.

9.Henan Mine Crane Co.,Ltdhas top advanced processing and manufacturing equipment and processing technology in the crane industry all over China, at the same time, Henan Mine Crane Co.,Ltdtake the head in achieve the best management, best manufacturing, Try the best to ensure the Henan Mine Crane Co.,Ltd product quality and satisfy the demand of customer.

Safe system:

Weight overload protection device

Emergency stop system

Over current Protection, Short-circuit Protection

Phase sequence protection

Zero position protection, No-Voltage protection, convenient and simple operation.

Protective earth conductor is fitted as standard

Voltage lower protection system

Current overload protection system

High protection level IP44,IP54,IP55

Long and cross travel limit switch

Anti-falling protection of trolley and crane prevents from accidental falling

High quality long time bearing polyurethane materials buffer fixed at the end of trolley travelling and crane travelling to prevent over traveling

Safety hook latch used for avoiding the lifted material out off from the hook

Audible and visual alarm device to inform the person stay near by the travelling crane

Rain Cover for lifting mechanism of outdoor cranes, electric cabinet and driving mechanism

Technical parameters

Design standard

Crane design standard GB 3811.

General Purpose Overhead Crane design standard GB/T14405

Manufacturing and tolerances of rail installation GB/T10183.

Crane wheel standard:JBT 6392

Crane test specification and procedures GB/T5905.

Crane electric control equipment JB/T4315.

Important application wire rope GB8918.

Carbon structure steel GB/T700.

Low alloy high strength structure steel GB/T1591.

Welding joint radiographic inspection standard JB928.

Steel welding joint manual ultrasonic flaw detection way GB11345.