الوصف
Widely used QD type 20t overhead double
girder cranes
Brief
introduction of widely used QD type 20t overhead double girder
cranes
1. QD model overhead crane with hook is mainly used inside
workshop. It is divided into two working classes: A5 and A6
according to the use grade and load-up condition.
2. There are three kinds of method for entering the platform of
cab from the side, from the end and from the top.
The figure is the side enterance; arrowhead A shows the end
entrance; the top entrance is at the place there is no door.
3. The cab can be either fixed at the left end or at the right
end; the figure shows that the cab is fixed at left end.
4. Safe slide wire or angle iron can be used for electric
conduction of the crane; it can be either at the opposite side of
the cab or at the same-side of the cab.
Main
parameters ofwidely used
QD type 20t overhead double girder cranes
|
Main hook capacity
|
t
|
20
|
20
|
20
|
20
|
|
Aux hook capacity
|
t
|
5
|
5
|
5
|
5
|
|
Span
|
m
|
16.5
|
19.5
|
16.5
|
19.5
|
|
Main hook lifting height
|
m
|
12
|
12
|
12
|
12
|
|
Aux hook lifting height
|
m
|
14
|
14
|
14
|
14
|
|
Duty
|
|
A5
|
A5
|
A6
|
A6
|
|
Main hook speed
|
m/min
|
7.2
|
7.2
|
9.7
|
9.7
|
|
Aux hook speed
|
m/min
|
12.7
|
12.7
|
12.7
|
12.7
|
|
Crab travelling speed
|
m/min
|
40
|
40
|
40
|
40
|
|
Trolley travelling speed
|
m/min
|
71
|
75
|
94
|
87
|
|
Max wheel load
|
kn
|
178
|
191
|
183
|
197
|
|
Total power
|
kw
|
55.6
|
55.6
|
69
|
69
|
Product show
of widely used
QD type 20t overhead double girder cranes
Features
ofwidely used
QD type 20t overhead double girder cranes
Beam
High technique, torsion-free box girders, no welding one whole
type, strong and beautiful
Electrical parts
Siemens brand/Schneider brand
Motors
Frequent starting , reversing & braking, dust proof
construction foot / flange mounted TESC / TEFC , Sq. cage motors
with integrated safety brakes, insulation class F-H, IP54
protection for hoisting, CT & LT motions. Squirrel Cage
Induction Crane duty motors of reputed make (Motors may be used
preferably of JIAMUSI/WUXIHONGDA make), CDF25%, Totally enclosed,
fan cooled, Insulation Class-F & confirming to relevant
latest GB/T 1032-2005.
Brakes
Independent Hydraulic Brake Conical rotor type or "Fail to safe"
action type Electro-hydraulic drum / disc brakes type to be
provided to hold the mechanism in position instantaneously as
soon as the power supply is 'OFF' either accidentally or
intentionally for all motions.
Gear Box
Accurate hob cut helical / spur gears & pinions having
hardness 250 to 350 BHN made from carbon alloy steel, smooth
operation & long life, can equipped with SEW/ABB brand high
quality gear box.
Electrical Panel
Modular design, ease to install and maintain, reliable operation,
fuses less circuitry, ducted wiring and compact terminals. Motor
overload protection to prevent overloadingIf cabin control, it
can be equipped with Air-conditioning and with easy and conveniet
control panel.
Limit Switch
For over Hoisting and Over lowering: Shunt, adjustable type. Two
way lever type for CT both direction and LT both direction of
reputed make.Safety limit switches for stoppers will be provided
to prevent over traveling in all motions.
Control Panel
Through Cabin Control as also with Master Controller with Push
Button for ON, OFF, UP, DOWN, Forward, Reverse, Left, Right,
Bridge Light & Emergency Stop. Operating safe Voltage
36Volts, hanging in the end of Bridge Girder.The control panel of
crane should consist of Fuses, reversing air breakers, step down
transformer, relay etc. The wires / cables should be numbered as
per circuit diagram. Circuit diagram covered with sheet to be
provided on the inside of panel door.
Safety
-
Weight overload protection
device.
-
Top quality polyurethane
buffer.
-
Crane travelling limit switch
and lifting limit switch.
-
Voltage lost protection
function,when power is failuire then it needs reset all
function to start working.
-
Emergency stop system,in case
of emergency,the operatore could use emergency stop to
cut off power and stop the crane operation immediately to
protect human and relevant property.
-
Current overload protection
function.
FAQ
1.Is your product
customized?
Thanks for your question, yes.because the working condition is
different, all our products are cuztomized, depending on the
detail require, so if you give us more information, the accurate
solution we can prepare for you.
2.What the information
should i provide when i am inquiry?
Thanks for your question, the more information you provide, the
accurate solution prepare for you! The information such as
lifting height, lifting capacity, span, power source or other
specials you provide will be much apprciated.
3.How many operation
methods for my selction?
Thanks for question. The standard operation methods we provide is
pendent controller with push s, meanwhile,we also can
provide remote control with push s or the cabin.
4.The space of my
workshop is limited, can the crane ok for me?
Thanks for your question. For low headroom workshop, we have
special products. The details demension our engineer will be
design for you.
5.Do your side can
provide lifting tools?
Thanks for your question. Yes, we can provide any kind of lifting
tools such as hook, electricmagnetic, grab...
NOTICE:
As
this kind of crane is customized, in order to offer you most
suitable design and best solution, please confirm following
information when you send inquiry.
1.
Lifting capacity.
2. Span length.(rail center to rail center)
3. Lifting height.(hook center to ground)
4. Have you installed the rails? Do you need us supply the rails?
How long is it?
5. Power supply: Voltage.
6. Working condition: which material to lift? temprature?
7. Would be better if you have drawings of your
plant.
Come to us! The best installation team is
ready for you!
| بلد: |
China |
| نموذج رقم: |
-
|
| سعر فوب: |
2000 ~ 30000 / Unit ( Negotiable ) (قابل للتفاوض)
أحصل على آخر سعر
|
| الموقع: |
- |
| سعر الحد الأدنى للطلب: |
2000 per Unit |
| الحد الأدني للطلب: |
1 Unit |
| تفاصيل التغليف: |
plastic woven cloth, high quality strong plywood crate |
| موعد التسليم: |
20-30 days |
| القدرة على التوريد: |
100 Unit per Week |
| نوع الدفع: |
T/T, L/C, Western Union |
| مجموعة المنتج : |
Double girder overhead crane
|
