It is prohibited to use the equipment in the combustible, explosive
or corrosives environment.
Epoxy zinc-rich painting for one bottoms and two sides of **0μm
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
end plate
Maintenance walkway is located on one side of the main girder,
consisting of flower pattern plate, ***0meters handrail.
1. Both side of all the steel plate of crane are
pretreatment by pretreatment production line,
Sand blasting*- Primer spray*-Primer drying. Eliminate the
innerstress of steel plate, increase the adhesive force of
the steel structure. Ensure the appearance and anticorrosion
quality.
2. Steel plate cutting adapt whole sets Messer 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, Weihua are 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.
6. Adapt the steel plate rolling drum and wireless steel
tube, Weihua has a set of steel plate rolling drum producing
and processing line which is industry-leading level. From
pre-bending by ***0t 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 and treating by 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. Weihua have car bottom natural gas annealing
furnace, the furnace chamber inside size (length*width*heigh)
is ****0mmx***0mmx***0mm, 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 Weihua
has this ability in China Crane Hometown.
8.Weihua has top advanced processing and manufacturing
equipment and processing technology in the crane industry all
over China, at the same time, Weihua take the head in achieve
the best and better management, best and better
manufacturing, Try the best to ensure the Weihua product
quality and satisfy the demand of customer.
Safety protection system
a. Overload protection in the event of overload, the hoist
unit switches off and only the lowering motion is
possible
b. Long and cross travel limited by means of preliminary
and final limit switches or Wireless anti-collision
device
c. Anti-falling protection for the Three-in-One electric
motor of trolley and crane prevents from accidental
falling
d. All movements can be switched off by actuating the
emergency-off switch at the control station via a main
contact
e. High quality long time bearing polyurethane materials
buffer fixed at the end of trolley travelling and crane
travelling to prevent over traveling
f. Safety hook latch used for avoiding the lifted material
out off from the hook
g. Audible and visual alarm device to inform the person
stay near by the travelling crane.
h. Rain Cover for lifting mechanism of outdoor cranes,
electric cabinet and driving mechanism
i. Protective earth conductor is fitted as standard
j. Voltage lower protection system
k. Current overload protection system
Control way:
Pendent line control
a. *6V control voltage safety for human being.
b. Easy to control, no additional driver necessary, operate
following the travelling of crane and hoist
c. Double step with emergency to achieve safety stop
d. Connected with the electric trolley suspended under
trolley
e. Protection class IP*5
f. Operation life not less than **0,**0 times
Remote control
a. Taiwan Yuding or world famous brand,
b. *4V control voltage safety for human being.
c. Remote distance: not less than **0meters,
d. Easy to control, no additional driver necessary, to
operate more freely on the ground
e. Tens thousands of connection frequency points,
non-interference with each other
f. Two steps push or joystick station with emergency
stop.
g. Protection class IP*5
h. Operation life: not less than **0,**0 times
