QY75E Truck Crane

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Brief introduction

Equipped with the longest boom among like products, reliable hydraulic security device and the imported variable

pump, valve and lock, and the electric proportional control system as well as the energy-efficient truck crane chassis, QY75E truck crane lifting performance outperforms its competitors. PLC control technology is applied to electrical control

system and makes it much simpler, more stable, reliable and durable. Its appearance embodies the brand culture of Beijing Jingcheng Heavy Industry Co., Ltd and is the symbol of high quality.

Specification

Max. rated capacity

75000 kg

Max. traveling speed

75 km/h

Gradeability

40%

G.V.W.

45930 kg

    Front axel load

19930 kg

    Rear axle load

26000 kg

Min. turning radius

12 m

Main boom

 

    Section

Five - section U

    Length fully retracted

11.8 m

    Length fully exended

45 m

    Telescoping speed

135 Seconds

    Elevation speed

-2° to 81°:70 s

Jib

Two sections articulating jib, equipped with a one - way pulley at boom end

    Length

10 m and 18 m

Hoisting system

Variable speed hoist with double grooved drum and anti-swing wire rope;

 

Variable-displacement motor,proportionally control the speed of the hoist;

 

Main hoist is equipped with built-in normally closed brake and balance valve.

   Line pull

61.25 kN (6,250 kg)

   Line speed

130 m/min at the fourth layer

   Wire rope

Diameter···20 mm

 

Length···230 m

Outriggers

Four H-type hydraulically controlled outriggers; Independent horizontal and vertical movementcontrolled form each side of carrier and the superstructure cab.

 

Each outrigger is equipped with hydraulically controlled check valve. Electronic crane level indicators.

Outriggers footprints

Horizontal·······7800mm

 

Longitudinal·······6000mm

Chassis manufacturer

JCHI

Chassis model

Overall width cab 8×4

Engine

 

   Model

ISLe37540 (or35)

   Type

6 cylinder in line, common rail

   Displacement

8.9 L( Tier IV / National III )

   Rated poer

276 kW / 2100 r / min

   Max. torque

1550 N·m / 1400 r / min

Gearbox

16 speeds forward, 2 reverse

Slewing system

1.7 r / min Free slewing

Hydraulic system

 

    Hydraulic pump

Tetragenous gear pump driven by engine through P.T.O

    Control valve

Multiple control valves actusted by pilot pressure with integral pressure relief valve

    Hydraulic oil tank

Capacity 823 L

   Oil filter

Return oil filter

Safety devices

Relief valve

 

Hydraulic lock

 

Working range and load indicator

 

Overwinding auto control alarm

 

Counter balabce valve

 

Load indicator

 

Height limiter

 

Overwinding control alarm

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Q:What is the hook crane technique?
Of course, different conditions, tonnage, work conditions but also their own long practice to grasp
Q:How many car cranes are there?
A truck crane is usually a crane that is modified on a car chassis.
Q:What is the usefulness of the revolving center of the crane?
The center of the truck crane is the center of the rotary joint, is connected to the car and get off the site of the key components of the hydraulic.
Q:Is the crane (a truck crane) a truck?
From the concept of definition, since the "construction machinery for non-transport vehicles", it is equivalent to not engage in road transport operations, you do not need to apply for transport business license.
Q:What is the advantage of a car crane?
Larger, mobile cranes will increasingly show its importance.
Q:What are the truck cranes getting off the system and the car system?
If your system is a hydraulic or electrical system, then it is divided by the center of the rotating cylinder, and slewing support similar
Q:What is the reason for the jitter of the crane boom
Once the air into the hydraulic circuit, it will increase the oil elasticity, reduce the hydraulic drive stiffness, the telescopic cylinder impact and crawling phenomenon, causing the boom when the telescopic jitter.
Q:What are the shortcomings of a car crane?
But its high price, is not currently accepted by most domestic users
Q:What is the development trend of truck cranes in China?
China's automobile crane production enterprises in order to survive and develop in the field, need to do a lot of things
Q:What are the four kinds of truck cranes?
adjusting the length of the boom), the boom of the boom the elevation angle of the adjustment boom

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