HUAXIA TOWER CRANE QTZ31.5(315B)

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Thank you for choosing the product of Huaxia Group. Please read the Brief Introduction carefully to know the tower crane well.

The tower crane is a hydraulic tower crane with swing top, horizontal jib and mobile trolley. It has the hoisting moment for315Kn.m;the maximum hoisting load of 3t and the maximum working radius of 39m.The hoisting height of anchoring tower crane is 25m and that of climbing tower crane is 100m.

The tower crane has ingenious design, beautiful shape and simple structure .It is easy to operate and maintain, and is safe and at a reasonable price .It is an ideal construction machines for construction enterprises. It has hoisting mechanism, swing mechanism, top-rising mechanism and radius mechanism, which can work individually or cooperatively to make a high efficiency. The top-rising mechanism is used to raise or lower tower. The hoisting mechanism has 3-speed electronic motor respectively for high, medium and slow hoisting speeds. It has flexible swing mechanism and radius mechanism and slewing mechanism for vertical and /or horizontal transportation of building materials in one time.

The tower crane has complete and sensitive protection devices such as hoisting weight limiter, hoisting moment limiter, hoisting height limiter, radius limiter and swing limiter to ensure of regular operation. It also has rest platform, guardrail and other protection devices. Driver’s cab is at a side of rib and has big space and wide visual field.

The tower crane has excellent performance and is suitable for hoisting in short civil or industrial buildings or loading or unloading in ports or goods yards

The products of Huaxia Group are your best choices of construction machines.

3 Main technical Parameters

Name

Unit

Index

QTZ31.5

Nominal hoisting moment

kN.m

315

Max. hoisting weight

t

3

Rated hoisting weight at jib nose

t

0.734

Working radius

m

2.5~39

Height

Independent

m

25

Attached

m

100

Hoisting

Speed

Ratio.

2

Hoisting

speed

m/min

42/21/7

Swing speed

r/min

0.45/0.7

Radius speed

m/min

33

Top-hoisting speed

m/min

0.7

Weight(independent)

t

19.5(21)

Ballast weight

t

5

Max. swing radii

m

39.75

rear swing radii

m

10.37

Max. working wind speed

m/s

20

Max wind speed for top rising

m/s

13

Working temperature

-20~40

4 Technical Parameters of Main Parts

Name

index

hoisting structure

Electric

motor

model

YZS200L1-4/8/24

power

kW

15/15/4

Rotating speed

r/min

1440/730/220

Decelerating motor

model

JZQ400

Central distance

mm

400

ratio

15.75

Arrester

model

YWZ-200/25

Braking moment

N.m

200

Hydraulic propeller

YT1-25

Steel wire

6*19-12.5-1670-I-right twisted

swing mechanism

Epicyclical reducer

model

XX4-63

Reducing ratio

195

fluid coupling

YOX-220A

Slewing ring

011.32.1120

Electric

motor

model

YD112M-6/4  B5

Power

kW

2.2/2.8

Rotating speed

r/min

950/1440

radius changing mechanism

Electric

motor

model

Y100l2-4

Power

kW

3

Rotating speed

r/min

1430

reducer

model

WCJ-120

Reducing ratio

38

Steel wire

6*19-6.2-1570-I-right twisted

Lifting mechanism

Electric

motor

model

Y100L2-4  B5

power

kW

3

Rotating speed

r/min

1430

Hydraulic oil cylinder

HSGK-125/90-1320

Rating pressure

MPa

16

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Q:Which kind is better, gantry crane or tower crane?
Each has advantages, the use of different conditions, the use of different cranes, tower cranes can not move, but the lifting height can be very high, the door machine has tracks can be vertical and horizontal movements, lifting height, tower crane is not high.
Q:did Robert Crane from Hogan's hero's commit suicide?
no, he was brutally murdered
Q:How did Romans make columns in roman times Without cranes?
Columns weren't one piece - they were stacked. They had cranes of a type the used human lifting power.
Q:a crane 10 is moving across a frictionless surface at 3/s. if you wish to bring the crate to a stop, how much?
What is a 10 crane? what is 3/s ? once you have numbers that mean something, plug them into the following equation Kinetic Energy in J if m is in kg and V is in m/s KE = ½mV²
Q:can some one give me contact details for O & K Marine Crane Manufacturer?
there okorder.com/
Q:What is the maximum weight an industrial crane can lift?
It depends on the definition of an industrial crane and the installation. It is possible to lift hundreds of tonnes but standard industrial cranes on I beams usually limited to 15-25 tonnes for cost and building requirements.
Q:how do cranes get assembled ? on building sites?
They use hydraulic mobile cranes, (they're telescopic). I watched a crane being disassembled on a building site near my home. How did they do it before they had these mobile cranes? In Switzerland, in places where there are no roads they use helicopters.
Q:crane signals?
There are hand signals which are used by men not operating a larger crane for hoisting,lowering,stopping, holding and slow. There are more but you would get a better idea in the link below. Scroll to pictures. 2nd link is a place to purchase placards or magnetic backed visuals.
Q:Where can i buy a claw/crane machine that you see in pizza parlors and arcades?
This Site Might Help You. RE: Where can i buy a claw/crane machine that you see in pizza parlors and arcades? some people call it a crane, others say claw but the point is...where can i get one? i dont want a huge one, and i dont want a small one. A medium size one. the shops have to get them from somewhere right? oh, and i'd rather not get one from Ebay. is there a business or something? thank you!
Q:What makes a crane so strong?
Cranes are built using a structural technique called a truss which is characterized by looking like a series of triangles connected together. That structure prevents the members from having to resist any bending loads. All of the truss members experience only tension and compression, no bending. That is an extremely efficient structure which is why they can be so strong without being monstrously heavy. Or if you prefer the short answer, engineers make the crane so strong.

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