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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


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