M462 C / M - 231
Technical Specifications

Item 1 Container
(for tunneling machines AVN 250 - 1200)
L = 4,2 m
W = 2,45 m
H = 3 m
Without pipe opening in container bottom double wing door on front end shash window on front end door at side wall dividing wall between aggregate room and steering room with door fully insulated container.

In the container are:

Aggregate room
a) hydraulic device
hydraulic pump for jacking station 30kW motor quadrupole 0 - 38 ltr. /min infinitely adjustable jacking speed 0- 45 cm min. max. 500 bar hydraulic pump for cutter head 75 kW motor, guadrupole, 0 - 180 ltr./min. infinitely adjustable, max. 250 bar with installed pump for oil cooling and filtration 87 ltr./min.

Steering pump for steering cylinder/bypass 2,6 ltr. / 500 bar with installed double pump 8,5 ltr. / min, 4,6 l/min for auxiliary operation.

Oil tank 1000 ltr. capacity mineral oil HLP 46
- with oil cooler

b) compressor
Technical data
capacity 255l / min.
electrical power 1,9 kW
motor 200v

c) electrical installation
supply 380 V / 50 Hz +/- 2%
these phase current with all safety functions and contractors thyristor steering:
slurry pimp 30 kW
feed pump 30kW

d) heating 3 kW

Operating room a) control panel for operation and survey of tunneling machine - steering computer - full visualization of the measurement data on color monitor and complete mistake display. - printer to print out measuring data - the following data is indicated - speed of cutting head - direction of cutting head - torque cutting head - bypass open / closed - slurry and feed valve open / closed - flow meter in slurry and supply line - measurement of pressure at suction pipe of slurry lines - stroke steering cylinders - thrust pressure in jacking station - microphone - rotational speed of slurry and feed pump Measurement data: - X/Y coordinates - roll over - longitudinal tilt - direction angle - advances distance - date / hour b) cable checking stand for 37 lead steering cable c) central heating 5 kW d) 2 flow meters NW100 e) remote control for jacking frame

Item 2 Pump system
Slurry pump haft (RPL) 30 kW
feed pump (KSB) 30 kW
flow 100 m3 / h
both pumps are infinitely adjustable 0-1500 U/min
length e-cable shaft + feed pump 15 m
length e-cable tunnel pump 10x25 m

Item 3 slurry hoses shaft and connection to sediment tank
ND 100
- gate valve to close the lines in case of change of pipes
- connection lines in shaft (for shaft depth 10 m)
- connection lines shaft - sedimentation tank for approx. 25m³

Sediment tank approx. 25 m3 (local made)

Item 4laser
Laser MTL 75 with height and horizontal adjustment, 300 m lens, laser capacity 3 mW, connection cable and transport case

Item 5 Bentonite injection device
Bentonite pressing plant with mixer approx. 25 ltr. / min conveying capacity, infinitely adjustable, 25 bar compressing pressure, volume of mixture and stacking box each approx. 100 ltr. compacte equipment, weight 200 kg drive power pump 3+3kW, pump is operated directly from control panel.

Item 6 Connection lines 114 m
Hydraulic 4 hoses
a) 38 St. drive AxB, L= 6m, 30S
b) 19 St. steering cylinder, L= 6m
c) 19 St. leakage oil, L=6m
d) electric (1 cable) 13x9 m machine cable 37-pole
e) bentonite line: 19x6 m NW 16

Item 7 Microtunnelling Machine AVN 500 / 665
- conical crusher
- hydraulically driven cutter head
- cross section slurry line NW100
- standard cutter head for soil category 2-5 with cutting tools
- shield with cutting wheel and drive
- machine pipe
- trailing tube

with the following installations
- 3 hydraulic gearing motor
- 3 steering cylinders with integrated measuring system, operating pressure max. 500 bar, high pressure filter in P-line
- cutter head equipment with hard metal tools
- steering valves for steering cylinders for valve steering
- 2 ball valves NW 100 for water and slurry circulation
- ball valve for bypass
- laser target, dimensions 160 x 100 mm
- measurement of pressure in slurry circulation of suction pipe to excavating chamber
- microphone
- material ST 37, with ST 52 armouring at certain points
- 1 connection for bentonite in trailing tube
- 3 bentonite nozzles in trailing tube
- integrated electronic stroke measuring system in steering cylinders
- 1 trailing tube, l = 2 m with tailskin for polycrete pipe NW 500

Technical data for AVN 500 / 665

Outside diameter - 665mm
Overall length - 2000 mm
torque left / right - 23000 Nm
rotational speed - 0-15 U / min
max. steering power per cylinder - 350 kW
steering angle left / right - 3,6 o
steering angle up / down - 4,2 o
steering angle diagonal - 4,2 o

Item 8 Jacking frame for pipe length 2 m / shaft D- 3,2m
- max. pipe outside diameter 970 mm
- shaft dimensions d- 3,2m
- jacking frame according to MH design
- pressure ring with running wheels
- 1 adapter ring for jacking of the choosen jacking pipe Mayer Pipe polycrete and launch ring
- with 3 strokes a 2 m pipe is jacked
- a=2954 mm; b=1950 mm; h=1150 mm
- weight 5,7 to

Item 9 slurry lines NW 100
112 meter on pipe pallet

water circulation 2 lines
- 50 pipe pakets, l=2m with muff coupling completely mounted at guide rails
- each 3 sets of pipes for length compensation, l=2,1m, l=1,9m
- connection peaces for the shaft

Item 10 Launch seal, d=665mm
for rectangular shaft with connection pipe.

Survey installed power

cutter head - 75kW
centrifugal pumps - 30kW
compressor - 2,2kW
steering pump - 2,6kW
jacking pump - 30kW
steering - 5kW
light, heating and plugs approx - 10kW
bentonite pump - 10kW