High Capacity and Long Reach Excavator
technical data
20
Maximum payload at maximum reach
RB VC20 concept offers G up to 22m/72ft reach and 1.6m 3/2.1yd 3 capacity G Moving counterweight – perfect equilibrium G Ultra low ground pressure – safer operation G Direct pull on bucket FEATURES 4 Models available VC20 - 15
VC20 - 17
VC20 - 20
VC20 - 22
Maximum Reach
(m) (ft)
15.5
50’ 10”
17.0
55’ 9”
20.0
65’ 7”
22.0
72’ 2”
Maximum Depth
(m) (ft)
6.0
19’ 8”
7.0
23’ 0”
8.3
27’ 3”
10.0
32’ 10”
Max Depth
(m) (ft)
8.0
26’ 3”
-
-
11.5
37’ 9”
-
-
(m) (ft)
9.6
31’ 6”
8.3
27’ 3”
12.0
39’ 4”
10.4
34’ 1”
(m) (ft)
7.0
23’ 0”
-
-
8.8
28’ 10”
-
-
(with Deep Dig insert)
Discharge Height Discharge Height
(with Deep Dig insert)
Bucket Size at Maximum Outreach (Standard Attachment) Silt
(litres) (cu. yd)
1600
2.10
1300
1.70
1000
1.31
800
1.05
Excavating
(litres) (cu. yd)
1400
1.83
1100
1.44
900
1.18
700
0.92
at Full Reach (kg) (lbs)
3300
7280
2500
5510
1950
4300
1500
3310
Max. Load
(Bucket & Contents)
SPECIFICATIONS VC2O-15 Maximum Weight
(tonnes) (lbs) (kg/cm2)
Ground Bearing Diesel Engine Hydraulic Pump
(lbs/in2)
VC2O-17
VC20-20
VC20-22
34.1
75180
34.8
76730
34.3
75630
35.0
77180
0.48
6.8
0.49
6.9
0.48
6.8
0.49
6.9
(kw) (hp)
115.5
155
115.5
155
115.5
155
115.5
155
(litres/min) (US/gals)
2x150
2x40
2x150
2x40
2x150
2x40
2x150
2x40
Hydraulic Pressure
(Bar) (psi)
305
4300
305
4300
305
4300
305
4300
Pilot Controls - Hydraulics
(Bar) (psi)
34
480
34
480
34
480
34
480
(Litres) (US/gals)
490
130
490
130
490
130
490
130
Hydraulic Oil Capacity(Litres) (US/gals)
460
122
460
122
460
122
460
122
Fuel Capacity
Travel Speed
(km/hr) (mph)
Swing Speed
(rpm)
5.1
(m/min) (ft/min) (tonnes) (lbs)
Bucket Line Speed Bucket Pull
0 - 2.6 0 - 1.6
0 - 2.6 0 - 1.6
-
5.1
50.0
164
8.0
17640
0 - 2.6 0 - 1.6
-
5.1
50.0
164
8.0
17640
0 - 2.6 0 - 1.6
-
5.1
-
50.0
164
50.0
164
8.0
17640
8.0
17640
MACHINE DIMENSIONS VC2O-15
VC2O-17
VC20-20
VC20-22
A Width of Standard Track Links
850
34
650
34
650
34
650
34
B Width of Tracks
3610
11’ 10”
3610
11’ 10”
3610
11’ 10”
3610
11’ 10”
C Length of Tracks
4650
15’ 3”
4650
15’ 3”
4650
15’ 3”
4650
15’ 3”
D Height of Tracks
1050
3’ 6”
1050
3’ 6”
1050
3’ 6”
1050
3’ 6”
E Height of Operators Cab
3150
10’ 4”
3150
10’ 4
3150
10’ 4
3150
10’ 4
F Width of Upper Works
3230
10’ 7”
3230
10’ 7”
3230
10’ 7”
3230
10’ 7”
G Clearance under machine
435
1’ 5”
435
1’ 5”
435
1’ 5”
435
1’ 5”
H Minimum Transit Height
3700
12’ 2”
3700
12’ 2”
3700
12’ 2”
3700
12’ 2”
J Overall Length
12420
40’ 9”
14100
46’ 3”
14900 48’ 10”
16500
54’ 2”
K Tail Swing
3080
10’ 1”
3080
10’ 1”
3080
10’ 1”
3080
10’ 1”
L Boom Point Height
3250
10’ 8”
3500
11’ 6”
3200
10’ 6”
3500
11’ 6”
20
PERFECT EQUILIBRIUM The RB VC (Variable Counterbalance) Series of machines are unique – extending the bucket arm outwards automatically moves the boom-mounted counterweight backwards, keeping the machine in perfect equilibrium. The patented VC system provides high capacity at long reach, and maintains a low ground bearing pressure during the digging cycle. The VC’s sliding counterweight is ALWAYS in the correct position, and being boom mounted the counterweight speeds up the lift out during digging.
DIRECT PULL ON THE BUCKET A rope directly connected to the bucket is operated by a powerful hydraulic winch to provide speedy bucket filling, better penetration and increased productivity.
ENVIRONMENTALLY COMPATIBLE The long reach capability of the VC product is ideally suited to the handling of hazardous waste material, slurry ponds, environmental clean up operations and refuse tips in cities. The long reach of the VC keeps the operator safe and well away from the unknown or contaminated materials being handled.
VC PRECISION ON WATERWAYS The VC machine is as ideally suited for maintaining waterways and channels as it is for cutting new ones. The Variable Counterbalance concept is particularly beneficial in soft ground conditions where the near perfect weight distribution prevents damage to the bank. Mounted on a pontoon the VC gives yet further flexibility working at extreme radii. The direct pull of the hydraulic winch gives high bucket force regardless of the arm position and the hydraulic bucket ram always ensures superb penetration.
SEA DEFENCE & COASTAL PROTECTION The extreme reach of the VC series excavators makes the machine ideally suited for sea defence projects and coastal protection work.
VC ADAPTABILITY
WORKS WHERE MAN CANNOT TREAD When the going really gets tough, the fitment of ‘Bogmaster’ crawlers allows a VC to work where a man cannot walk. Ground pressures as low as 0.17kg/sq.cm. (2.4lb/sq.in.) can be achieved.
VC’s in drainage applications often alternate as efficient high speed weed cutters and weed rakes. The weedcutting control is mounted on the main control valve.
RB Cranes Ltd Thrumpton Lane, Retford, Nottinghamshire, DN22 7AN, England Tel +44 (0)1777 711 630
A Langley Holdings Company
Due to our policy of continual product improvements all designs and specifications are subject to change without advance notice.
Fax +44 (0)1777 710 604 www.rbcranes.co.uk