QY20B Truck Crane uses self-made truck crane special chassis, with powerful engine and fully-covered decking plate.
Main and auxiliary winches realize low speed with heavy load and high speed with light load, high working efficiency.
4-section telescopic boom of all-round boom profile, 1-section side-mounted jib, single cylinder for front support elevating, fully hydraulic drive, and double H-shaped outriggers.
Well-equipped safety devices such as automatic load moment limiter (AML), overload and over-wind cut-out device, etc., greatly improved safety in operation.
Two cabs ergonomically designed conform to ISO standard, fan, heater and air conditioner equipped acc. to requirement. Driver's cab is left semi-mounted, fitted with damping and adjustable seat. Operator's cab is right semi-mounted, equipped with LCD monitor for display of crane various motions.

Classificatory

Item

Unit

Parameter

Engine

Model

6C250-2

Outline dimension

Overall length

mm

12000

Overall width

mm

2500

Overall height

mm

3300

Wheel base

Axle 1

mm

5000

Axle 2, Axle 3

mm

1350

Track

Front wheel (Axle 1)

mm

2090

Rear wheel (Axle 2, Axle 3)

mm

1865

Mass

Total mass in travel state

kg

24850

Axle load

Axle 1

kg

6998

Axle 2, Axle 3

kg

17980

Travel performance

Travel speed

Max. travel speed

km/h

72

Min. stable travel speed

km/h

4

Turning diameter

Min. turning diameter

m

20

Min. turning diameter at boom tip

m

24

Min. ground clearance

mm

270

Approach angle

(?

21

Departure angle

(?

11

Braking distance (at 30km/h with full load)

m

9.5

Max. grade-ability

%

35

Exterior noise at acceleration

dB(A)

88

Fuel consumption for 100km

L

35

Power

Engine rated output

kW/(r/min)

184/2200

Engine rated torque

N.m/( r/min)

958/1400

Engine Rated speed

r/min

2200

Classificatory

Item

Unit

Parameter

Lifting performance

Max. total rated lifting capacity

t

20

Min. rated working radius

m

3

Turning radius at turntable tail

m

3.38

Max. load moment

Base boom

kN.m

833

Fully extended boom

kN.m

458.6

Outrigger span

Longitudinal

m

4.97

Lateral

m

5.4

Lifting height

Base boom

m

10.2

Fully extended boom

m

31.7

Fully extended boom + Jib

m

39.9

Boom length

Base boom

m

10.1

Fully extended boom

m

31.2

Fully extended boom + Jib

m

31.2+8.15

Working speed

Boom raising time

s

75

Boom full extension time

s

95

Max. swing speed

r/min

3

Hoist speed

(single line at 3rd layer)

Main winch

Full load

m/min

40

No load

m/min

90

Aux. winch

Full load

m/min

30

No load

m/min

60

Noise limit

Crane exterior noise

dB (A)

=118

At seated position

dB (A)

=90