Product introduction:
QL Double girder electric overhead traveling crane with hanging beam paralleling to beam consists of Main beam, end beam, Lifting trolley, crane long traveling mechanism, cabin and electric control system.QL Double girder electric overhead traveling crane with hanging beam paralleling to beam is one kind of heavy duty lifting equipment, it is usually used in steel mill plant indoor workshop to to lift long material,for example, steel billet,steel rebar bundles,steel billet bundles,etc.QL Double girder electric overhead traveling crane with hanging beam paralleling to beam has reasonable and robust structure,light dead weight,high bearing capacity,low cost maintenance, superior performance,long service life.
Normal capacity are 5+5t,10+10t,16+16t, the span is 10.5m-31.5m, lifting height 6-30m, working class is A6,A7. Control model: cabin control,remote control,pendent line control.Working voltage: 380V-50/60Hz3Ph,400V-50/60Hz3Ph,415V-50/60Hz3Ph,440V50/60HZ, 220V60HZ3Ph.
Technical parameters
| Lifting weight(T) |
5+5 |
7.5+7.5 |
10+10 |
16+16 |
| Span(m) |
10.5~31.5 |
| Max Lifting height(m) |
6~30 |
| Working class |
A5 A6 |
| Speed(m/min) |
Main Hoisting |
12.9,15.66 |
10.4,15.3 |
8,8/0.8 |
7,7/0.7 |
| Speed(m/min) |
Trolley Cross Traveling |
43.8,44.6,42.4 |
| Speed(m/min) |
Crane Long Traveling |
90.7,101.4,112.5 |
| Motor Type |
Heavy Duty Slipring Motor |
| Motor (Kw) |
Main Hoisting |
26,30 |
34,45 |
42,55 |
63,90 |
| Trolley Cross Traveling |
2.5,4,6.3 |
| Crane Long Traveling |
2*4,2*5.5,2*7.5,2*8.5,2*11 |
| Control mode |
Pendent line control,Remote control,Cabin control |
| Recommended Rail model |
38kgs/m,43kgs/m,QU70 |
| Power source |
3Ph A.C 50Hz 380V |
Mechanical parts:
Double welding box girder, beam deflection with DIN/FEM standard
Steel Material: Chinese standard Q235B,Q345B, and Q355E
Manual brush painting,One alkyd iron red primer painting, two alkyd orange enamel finish painting
Epoxy zinc-rich primer painting for one bottoms and two sides of 120μm thick, to achieve a long lifespan, beautiful appearance and good luster.
The girder and end beam are connected together by high strength bolts to ensure the structure strength and precision of the whole machine.
The end beams are equipped with flat wheel or double rim wheels, anti-friction bearings, buffer blocks and derailment preventing plate.
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
5.The welding of end beam adapt double gun gantry submerged arc welding, highly welding quality ensure the stable quality of the crane effectively.
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 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
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.
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