CQUY550 Hydraulic Crawler Crane

CQUY550 Hydraulic Crawler Crane
CQUY550 Hydraulic Crawler Crane
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Technical Features

1. CQUY550 hydraulic crawler crane adopts advanced Cummins QSB6.7 Diesel Engine.

2. Its main boom ranges from 13 to 52 meters and auxiliary boom is within the range from 9.15 to15.25 meters. When the length of the main boom reaches 42 meters, the crane could install accessory booms of 9.15, 12.20 or 15.25 meters, with their fixed angle of 10° or 30°.

3. Both main and auxiliary lifting winches possess unique free fall function with the max pull capacity of single layer achieving 12t.

4. The parts are lightweight for transportation, with the max weight of not more than 31t. Boom backbone tube uses thin boom steel tube with light weight, high strength and load-bearing capacity.

5. The hydraulic crawler crane has its hydraulic system adopting Rexroth hydraulic components with high reliability, stable operation and low failure rate.

Technical Data
Max rated lifting capacity: 55t
Max rated capacity × working range: 55×3.7=203.5t

DescriptionsUnitData
Length of standard boomm13~52
Length of fixed jibm9.15~15.25
Max length of boom plus fixed jibm43+15.25
Boom angleº30~80
Working speedRope speedHoistm/minHigh 70Low 35
Lowerm/minHigh 70Low 35
Boom risem/min45
Boom lowerm/min45
Swing speedr/minHigh 2.7 Low1.8
Travel speedkm/h1.1
Main lifting multiplying power9Max single line pull15t
Gradeability (with basic boom and the cab in the rear)%40
Rated power output/rotation speed of diesel engineKW/r/minCummins QSB6.7 142KW/2200
Weight of whole machine (with basic boom)t55
Ground pressure(with basic boom)MPa0.069
Counterweightt17.8
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