70t YTQU70 Construction Hydraulic Crawler Crane

Main Technical Parameters

Unit

YTQU70

Maximum hoisting capacity of

YTQU70 Hydraulic Crawler Crane

t

70

Maximum hoisting torque of

YTQU70 Hydraulic Crawler Crane

t·m

70×3.8

Length of main arm of

YTQU70 Hydraulic Crawler Crane

m

13~58

Length of auxiliary arm of

YTQU70 Hydraulic Crawler Crane

m

9~18

Total maximum length of main arm and auxiliary arm of YTQU70 Hydraulic Crawler Crane

m

43+18

Luffing angle of main arm of

YTQU70 Hydraulic Crawler Crane

°

30-80

Rope lifting and lowering speed of main winch of YTQU70 Hydraulic Crawler Crane

m/min

0~100

Rope lifting and lowering speed of auxiliary winch of YTQU70 Hydraulic Crawler Crane

m/min

0~100

Rope lifting and lowering speed of hoist boom of YTQU70 Hydraulic Crawler Crane

m/min

0~76

Slewing speed of YTQU70 Hydraulic Crawler Crane

r/min

0~2.3

Travelling speed of YTQU70 Hydraulic Crawler Crane

km/h

0~1.3

Gradeability (with basic arm and keep the cab rearward)

%

30

Engine rated output power/rotation speed

of YTQU70 Hydraulic Crawler Crane

kw/r/min

160kW/2200rpm

Model of engine of YTQU70 Hydraulic Crawler Crane

Cummins 6CTAA8.3-C215

Total weight (with basic arm and largest hoisting hook)

t

66

Ground pressure of crawler (with basic arm)

Mpa

0.074

Counterweight mass of

YTQU70 Hydraulic Crawler Crane

t

22.5

Crawler gauge of

YTQU70 Hydraulic Crawler Crane

mm

3300~4830

Wheel track of crawler of

YTQU70 Hydraulic Crawler Crane

mm

5100

Width of crawler of

YTQU70 Hydraulic Crawler Crane

mm

800

Maximum transportation weight for a single piece

t

39

Maximum transportation dimensions for a single piece (length X width X height)

mm

8135×3300×3445

1. YTQU70 Hydraulic Crawler Crane excellent performance of engine: 6CTAA8.3-C215 horsepower Cummins diesel engine, strong power, reliable performance, economic and environmentally friendly.

2. High strength, reliability and stability of YTQU70 Hydraulic Crawler Crane chassis. The retractable chassis structure of YTQU70 Hydraulic Crawler Crane has an extended folding bracket. The length and width of crawler during the working period are respectively 5955 and 4830, while the width of crawler plate during the working period is 800. The ground pressure is small and the stability of complete vehicle is good. The pitch diameter of the slewing bearing reaches 1602 mm with large bearing capacity and strong impact resistance. The built-in planet gear reductor and high torque running motor have a large driving force and strong gradeability.

3. The single rope of the lift winch of YTQU70 Hydraulic Crawler Crane has large pull force and quick lifting speed: 107 main pump (double-pump) drives 160 motor. Due to large pull force, the working efficiency becomes high. (The multiplying power of main lift with 70t weight is 10, while the multiplying power provided by some manufacturers is 12)

4. Convenient and flexible operation: hydraulic control system adopts pilot handle operation and fine motion function; it is convenient and flexible; the slewing mechanism possesses controlled free skating function; the operation is stable and shock-free. (The operator can sit inside the cab to extend or withdraw the crawler when he is operating the crawler crane manufactured by Yutong Heavy Industries. However, the operator should go to the lower-vehicle platform and manually extend or withdraw the crawler when he is operating the crawler crane manufactured by some other manufactures. In this condition, the security becomes poor.)

5. Capable of long-time large-power working: the independent radiating system of YTQU70 Hydraulic Crawler Crane equipped on hydraulic system can guarantee the hydraulic system to work for long time and with large power.

6. High safety of YTQU70 Hydraulic Crawler Crane: It is equipped with safety devices such as swing locking device for rotary table of upper-vehicle, anti-overturn device for boom, and over-rolling protection device for winch. Moreover, it is also equipped with limiting device for the lifting of arm frame and lock mechanism for winch ratchet.

7. User-friendly design of YTQU70 Hydraulic Crawler Crane: A-shaped frame, lift cylinder, air-conditioning, adjustable seat (which can be adjusted forwards, downwards, leftwards and rightwards) and pilot main switch for cutting off the power source when driver gets off the vehicle, etc. Efficient, convenient and safe electric pump is provided. The maximum counterweight weight is 6 tons, so 8 tons truck crane can be used for assembly. This can reduce installation costs for users.

Engine model of YTQU70 Hydraulic Crawler Crane

Dongfeng Cummins 6CTAA8.3-C215

Rated Power of Engine (Kw)

160

Rated speed of engine (rpm)

2200

Master pump of YTQU70 Hydraulic Crawler Crane

GuizhouLiyuan Hydraulic

Main valve of YTQU70 Hydraulic Crawler Crane

Fengyang Hydraulic

Hoist reductor

Tai’an Xin Chuang

Travelling reductor of YTQU70 Hydraulic Crawler Crane

Tai’an Xin Chuang/ Qingdao Haili Makes Full of Gear Box Co., Ltd

Travelling motor

Shanghai Electric

Hydraulic oil cooler assembly

Xinxiang Zhenhua

Hydraulic oil cylinder

Fushun Yongmao

Seat of YTQU70 Hydraulic Crawler Crane

Zhejiang Tiancheng

Crawler assembly of YTQU70 Hydraulic Crawler Crane

Made in China

Luffing speed reductor

Tai’an Xin Chuang