Wyssen Skyline Cranes

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Wyssen
Skyline Cranes
Wyssen Seilbahnen AG
Swiss Made Quality since 1926
About Ourselves
Our Customers
Our Products
Wyssen Seilbahnen AG has been
working in the construction of
material ropeways since 1926. With
the introduction of the Skyline Crane
in 1939 by Wyssen, a new decade was
started in the way mountain forests
could be harvested economically
and ecologically. Still today Wyssen
Switzerland is leading the market in
the section of Skyline Cranes and
Material Ropeways. The latest models
Carriages of Wyssen are setting the
standards of todays developement
in this business. Top qualtity,
functionality, reliability, operational
and easy to use are the characteristics
of our products.
Our customers are quality conscious
companies for whom the flexibility,
continuous innovation and enormous
cableway know-how are
important
facts. Thanks to the continuity and
availability of machines and replacement
parts over decades, we will continue
to serve our large and ever increasing
number of regular customers to their
complete satisfaction.
Sled Yarders (cable winches) are
used as traction or braking machines
for driving cableways to transport
the carriage of the skyline crane or
cableway.
Our Staff
Our greatest strength consists of our
qualified and motivated employees.
The majority of these live in the
immediate vicinity, and have been
with our company for many years.
Logging Companies still constitute
the core business of the company. More
and more installations are also going
to specialised Cableway Companies,
who take over the often very
demanding transportation of materials
for the construction of mountain aerial
tramways, gas pipelines, pressure lines
for hydroelectric power plants, bridges
etc.
Ski Resort Companies use in addition
to systems for avalanche conrol also
skyline crane accessories or cable winches
(Sled Yarders) for the maintenance work
on their own cable cars or ski lifts, as
well as retrieving winches.
Owners of Mountain Cabins often
find an economical solution for the
transportation of material to their
remote houses.
Carriages are moved on the skyline
cable by the sled yarder with the help
of the mainline cable. In principle,
the load that is being transported
is suspended on the carriage and
transported along the skyline cable.
Motorised Skyline Cranes are
equipped with a engine to move the
hoisting cable, which is wound around
a drum on the carriage. The standard
model is pulled using a sled yarder.
Motorised skyline cranes are used on
construction sites.
Single-Line Cableways are selfdriven units for smaller payloads in the
range of 200 to 500 kg.
Cableway Accessories for the
installation,
maintenance
and
operation of cableways, such as cable
tensioning
equipment,
cableway
intermediate supports, cable support
saddles for intermediate supports,
cable clamps, safety belts for climbing
towers, pulley-blocks etc.
Avalanche Control Systems are used
for the artificial release of avalanches
in order to safeguard ski slopes, roads,
settlements or other installations.
Special Installations
In this section, almost everything is
produced that has something to do
with a ropeway, even in the remotest
way. These include, for example a
bungee-jumping ramp with a retrieval
winch, which was installed on the wall
of a dam, or a transportation cableway
for the transportation of gravel in a
gravel pit that shortens a long detour
for trucks in an elegant way by crossing
a river.
2
Wyssen Seilbahnen AG
3713 Reichenbach
Tel. +41 33 676 76 76
Fax. +41 33 676 76 77
[email protected]
http://www.wyssen.com
Seilwinden
W-10 and W-15
W30 bis
SledW200
Yarders
Wyssen sled yarders are the traction machines.
Unsurpassed in quality, service life and performance.
Wyssen Sled Yarders
As a result of decades of experience
in the construction of sled yarders,
and thanks to the continuous further
development, high-performance machines
have been created that are characterised
above all by their mobility, excellent
quality, high performance, safety and
long service life.
Thanks to their lightweight construction
from high quality materials, Wyssen sled
yarders find a wide range of applications
in forestry and in the construction
industry. They are predominantly used
as the drive units of skyline crane
installations, as the traction unit for
heavy skyline cables, as drives for
sloping elevators and as installation or
retrieval winches. When fitted with a
circular drive disc, it can also be used as
a circular drive for material cableways.
The sled runners, which are available in
narrow or wide style according to your
wishes and the type of sled yarder, offer
a good cross-country capability; these
are therefore suitable as mounting
winches.
is free of wear, allows high-speed runs
with heavy loads.
Thanks to the wide range of options
available, Wyssen sledyarders can be
adapted to the individual requirements
of each individual customer. All spare
parts are always available for delivery
ex-stock.
The large drum diameter ensures a very
long service life for the mainline cables.
In the models with a hydrostatic drive,
the speed, traction and
the direction of the drum
rotation is fully adjustable
to the given circumstances
with a single control lever.
With the skyline crane,
loads can be hauled,
hoisted, carried uphill and
lowered using the winch.
Downhill runs are usually
controlled by the air
brake.
This
high-performance
brake,
which
W-10 Standard
W-10, W-10 Cableway, W-10 Crawler Sled Yarder and W-15
Main Dimensions (in mm)
W-10
Standard
W-10 crawler
W-15
Wide Model A
Model B
model
Length
Width
Height
Drum ø
Drum width
Total weight in kg (without cable)
1,700
1,100
730
220
850
430
1,700 750
800 220 500
345
1,620
900
1,030
220
500
630
2,100
953
670
318
700
830
2,100
953
670
318
700
830
Capacity of the Cable Drum
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
5.0 mm
1,130 m
1,920 m
1,130 m
6.0 mm
730 m
1,250 m
730 m
7.0 mm
580 m
980 m
580 m
8.0 mm
400 m
680 m
400 m
9.0 mm
310 m
530 m
310 m
10.0 mm
280 m
480 m
280 m
12.0 mm
14.0 mm
16.0 mm
4
2,420 m
1,820 m
1,360 m
1,120 m
918 m
606 m
457 m
340 m
2,420 m
1,820 m
1,360 m
1,120 m
918 m
606 m
457 m
340 m
W-10 traction and speed
Hydraulic motor model
Empty drum Half-full drum
Full drum
Parabolic pulley (W-10 cableway only)
m/s
max.
kg
max.
m/s
max.
kg
max.
m/s
max.
kg
max.
m/s
max.
kg
max.
80 ccm
100 ccm
160 ccm
1.26
1.01
0.63
900
1,100
1,800
1.60
1.28
0.80
700
886
1,417
1.94
1.56
0.97
580
727
1,169
2.03
1.63
1.02
607
761
1,224
0.59
3,200
0.79
2,400
0.95
1,980
0.33
5,300
0.46
4,040
0.57
3,300
W-15 traction and speed
Model A
fast running
Model B slow running
W-10 crawler sled yarder
W-15 with air brake
Models
Model
Motorisation
Power Transmission
Brake Systems
Options and
Accessories on Request
W-10
Standard
model
-Petrol engine 13 kW
/ 18 hp electric and
manual start
- Electric motor 11 kW
-hydr. 80 ccm
-hydr. 100 ccm
-hydr. 160 ccm
Holding brake:
-Disk brake directly on
the drum
W-10
Wide
model
-Petrol engine 13 kW
/ 18 PS electric and
manual start
- Diesel 15 kW / 20 PS
electric and manual
start
-Electric motor 11 kW
-hydr. 80 ccm
-hydr. 100 ccm
-hydr. 160 ccm
-2-stage hydraulic engine
-Dead-man‘s brake
(hydraulic spring
loaded)
- El. distance indicator
-Connection for
additional units such
as reel drive, etc.
-Circular drive wheel
(parabolic pulley)
- Remote control
- Overload safety
device
- Slack cable safety
device
- etc.
W-15
- Air-cooled diesel motor 26 kW / 35 PS
-Hydrostatic drive,
fully adjustable
Optional driving brake:
-Air brake
- Centrifugal brake
5
W-30 to W-200 Sled Yarders
Power packages for the forestry and construction industries!
W-90/180 standard model
Main Dimensions (in mm)
W-30
W-40
W-90/180
W-200
Length
Width
Height
Drum ø
Drum width
Total weight in kg (without cable)
2,900
1,175
1,220
474
832
1,572
2,900
1,175
1,220
474
832
1,680
3,450
1,495
1,480
484
1,152
2,770
4,900
2,300
1,600
966
1545
6,800
Capacity of the Cable Drum
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
Cable ø
W-200 on Störebäelt Bridge DK
9.0 mm
1,960 m
3,250 m
9.5 mm
1,880 m
2,740 m
3,830 m
10.0 mm
1,630 m
2,580 m
3,320 m
10.5 mm
1,390 m
2,300 m
3,200 m
11.0 mm
1,340 m
2,030 m
2,830 m
12.0 mm
1,110 m
1,850 m
2,560 m
13.0 mm
890 m
1,480 m
2,050 m
14.0 mm
840 m
1,250 m
1,730 m
15.0 mm
675 m
1,080 m
1,680 m
16.0 mm
604 m
1,000 m
1,390 m
18.0 mm
1,110 m
20.0 mm
22.0 mm
25.0 mm
3,640 m
2,960 m
2,390 m
1,920 m
1,730 m
W-40 in use
6
W-30 standard model with air brake
Traction and Speed (depending on gearbox arrangement)
Empty Drum
Half-Full Drum
Full Drum
W-30
Traction
Speed
2,750 kg – 5,520 kg
0 – 10.5 m/s
2,250 kg – 4,730 kg
0 – 12.6 m/s
1,880 kg – 3,945 kg
0 – 14.7 m/s
W-40
Traction
Speed
2,670 kg – 6,560 kg
0 – 9.2 m/s
2,165 kg – 5,335 kg
0 – 11.9 m/s
1,665 kg – 4,100 kg
0 – 14.6 m/s
W-90/180
Traction
Speed
3,540 kg – 8,680 kg
0 – 8.2 m/s
2,880 kg – 7,050 kg
0 – 10.6 m/s
2,215 kg – 5,425 kg
0 – 13.1 m/s
W-200
Traction
Speed
1,500 kg – 13,500 kg
0 – 8 m/s
1,300 kg – 11,500 kg
0 – 9.3 m/s
1,100 kg – 10,200 kg
0 – 10.6 m/s
Models
Model
Motorisation
Power Transmission
Brake Systems
Options and
Accessories on Request
W-30
-Diesel engine
44 kW / 59 hp
- Turbo-diesel
55 kW / 75 hp
- Electrical with
fully adjustable
-Mech. 6-stage gearbox
- ditto with fluid turbo
clutch
- Hydrostatic drive,
fully adjustable
Holding brake:
-Shoe brake mounted
directly in the drum
Optional driving
brake:
-Air brake
- Eddy current brake
W-40
-Diesel engine
44 kW / 59 hp
- Turbo-diesel
55 kW / 75 hp
- Electrical with
continuous control
W-90/180
- Diesel engine
133 kW / 180 hp
- Electrical with
fully adjustable
W-200
-Diesel engine
150 kW / 200 hp
- Electrical with
continuous control
fully adjustable
-Dead-man‘s brake (hydraulic spring
loaded)
- Wide sledrunners
- El. distance indicator
- Spray protection
- Protective plates/ cover
- Luggage carrier
- Suspension gear
- Unimat drive
(Circular drive consists
of a frame, a lined double section wheel drive,
a counter wheel and 2
self a ligning blocks)
- Circular drive wheel
(parabolic pulley)
- Free-wheel for air
brake
- Cable guide roller
- Overload safety device
- Slack cable safety
device
- Remote control
- Operator cabin
- Transport trailer
- Oil-cooled gearbox
- etc.
-Mech. 8-stage gearbox
plus 4 reverse gears
7
Contents
Motorised Skyline Crane Page 14
Single-Line Cableway Page 15
Sled Yarders Pages 4 – 7
Carriages Pages 10 – 13
Accessories Pages 16 – 18
HY-2 Carriage
The perfect carriage for your mobile skyline crane.
The latest development is the extremely
compact, remote controlled Wyssen
carriage HY-2.
The patented system is fabricated from
high strength steel, 4 times stronger
than common steel.
Thanks to the remote control, the
operator in the forest can stop and
secure the carriage at the exact right
location.
The carriage travels over the heavyduty Wyssen support saddles.
The mechanical mainline safety feature
activates an emergency stop if the
mainline is parted. In the event that
severe swinging motion causes the grip
to clamp to the side of the skyline, the
clamping process would be repeated
until the carriage stops.
An unintentional release by slackening
of the mainline while passing a tower
is prevented by the control system
The mainline clamp allows the carriage
to be released while the load is raised
or lowered, permitting movement to a
new location and re-clamping to the
cable.
This facilitates the sideways pulling of
the load and protects the remaining
timber growth from damage.
As soon as the hook is drawn tight
into the carriage, the skyline grip
automatically releases, allowing travel
of the unit. When under tension, the
hook is secured against rotation,
preventing damage to the mainline.
Technical Data HY-2
Length
Width
Height
Hydraulics
Main cable
Mainline cable Carriage weight Load capacity Advantages
. Extremely compact and rugged
. Remote control with normal radio
. Mainline-cable clamp
. Very fast switch-over
. Cable break safety device with automatic re-gripping
. Controller monitors the travelling speed
. Large maintenance-free dry battery for months of operation without
900 mm
290 mm
800 mm
100 bar
14 - 32 mm
9 - 13 mm
appr. 350 kg
3,000 kg
recharging
10
On top the open, heavy
duty anti-derail system
Big size wheels
protect the skyline
Protected
antenna
Entire chassis fabricated from high
strength 8 mm steel
(equivalent to 41 mm common steel)
For profiles without towers, the
derail guards can be locked
Maintenance free chain drive with
automatic tensioner
Charging outlet for external connection to 110 VAC or solar battery
charger
State-of-the-art FSI
computer controller
Proven grip system design,
adjustment for cable diameter just by exchanging lower
clamp
Heavy duty mainline safety
brake
Large battery with 50Ah for
months of operation without
charging
Large hydraulic accumulator
Proven curved mainline
cable guide
Oversize sheave to protect
mainline
Hook with anti-rotation feature
Skyline sheave with integral
grip - patented
Flat-bottom for secure placement on the ground
Grip allowance for mainline
diameter from 9 to 13 mm
Choker Ring
The super-light solution
for the Choker procedure
Advantages
• Weighs only 1.25 kg
• Fast installation without tools
• Sling encloses ring
• Large contact area means cable sling is protected
• Hardened
• Maximum safety
• If ring breaks, load remains hanging in sling
• Solid / rugged
• For slings ø 11 - 13 mm
Wyssen FSI Carriage Control
State-of-the-art microcomputer controller
Used universally in all Wyssen carriages
•
•
•
•
•
•
•
•
•
Controlled by common radio (Motorola GP 340 or ICOM IC-F34GS)
Conventional time control possible (without radio)
Automatic activation/shut-down based on usage
Gripping cable during the trip when speed exceeds
preset limit no longer possible
Emergency stop if speed exceeds pre-programmed overspeed limit
Accidental gripping on tower saddles is prevented
All parameter settings are adjustable by the user (speeds, gripping and
delay time)
Display of battery charge status
Protected against clamping when the battery is low
11
HY-4 and HY-7 Carriages
The ideal unit for long-distance cableways.
The HY-4 and HY-7 carriages are
characterised by 4 guide pulleys and
a pendulum to support the load hook
and to relieve the mainline cable while
travelling. As a result, the mainline
cable will not be damaged, even by the
heaviest impacts due to long timber
loads.
Various options are possible:
- Remote radio control of the
clamping to the skyline cable
- Mainline cable clamp in the
pendulum
- 3-cable drum slack-pulling device
- Motorised slack-pulling device with
the power unit as trailer
For the transportation of long and
heavy goods, a trailer with a transport
bar is installed.
Technical Data
HY-4
HY-7
Length
1,270 mm
1,560 mm
Width
280 mm
390 mm
Height
900 mm
1,116 mm
Hydraulics
100 bar
100 bar
Skyline cable
14 - 36 mm
up to max. 45 mm
Mainline cable
9 - 16 mm
up to max. 20 mm
Carriage weight up to max. 320 kg
approx. 630 kg
Load capacity
4,000 kg
7,000 kg
Time switch with clamping and delay time
The carriages are all equipped with
a mainline cable breakage safety
device.
Advantages of the HY-4 and the HY-7
. Novel conception with very few moving parts
. Self-contained compact construction with moving parts on the inside
. Easy to service despite the compact construction
. Minimum wear to skyline cable due to 4 large glide pulleys
. Minimum wear to mainline cable through the increased size of the lifpulley
. ting
Plenty of room for the simplified pull-in of the mainline cable
. Smooth passage over the supports thanks to the 4 guide pulleys
. Passes over large and small WYSSEN support saddles
. Complete construction made from high-grade steel
. Safety guards to prevent derailment from the skyline cable,
fast travelling across saddles
. allowing
Large swinging angle of pendulum
. Very careful handling of the skyline cable thanks to the special clamping
. grove
Screwed construction, allowing the chassis to be dismantled into small
parts
. replaceable
Standard cable breakage safety device
12
Options
In addition to the standard models, the HY-4 and HY-7 carriages can also be fitted with the following
options (can also be retro-fitted):
HY-4F radio switching
For moving over short distances with
the load docked
Traction cable clamp HY-4Z
For travelling with lowered load
.
.
Advantages
Clamp integrated into the load
pendulum
• With the hook fully withdrawn, the
load is docked in the pincers
• Can be retrofitted to any HY-4
Advantage
Precise clamping and release at the
touch of a button
Hooks swings out for clamping
during slow descent
.
HY-4M motorised slack-pulling device
HY-4MF, HY-4MZ
.
.
..
.
Advantages
The hook rarely jumps out, even in
horizontal runs
On request, the slack pulling
procedure can start automatically
Traction adjustable from 50 - 400 kg
The mainline cable always remains
pre-tensioned up to the winch
Das Zugseil bleibt immer
vorgespannt bis zur Winde
Clamp
Speak
Open
The HY-4M is also available with
radio switching or mainline cable
clamp.
.
.
.
.
Does not have to be raised when
clamping during slow descent, even
with load
Remote control integrated into
hand held radio
Electronic time release
remains active if the wireless
communication is interrupted
Protected against clamping when
travelling too fast
• Protected against clamping when
the battery is low
Trailer Carriage
For the hoisting, transportation,
lowering and laying of long and
heavy parts, such as pressure pipes
and gas pipelines
.
.
Advantages
The trailer is directly controlled
from the carriage
More safety and load capacity
Load hooks for the HY-4
Model
1
2
3
4
1 normal hoisting hook
2 lightweight hoisting hook 3a normal choker spindle
3b lightweight choker spindle
made from aluminium 4 large hoisting hook up to cable ø 12 mm
up to cable ø 12 mm
up to cable ø 12 mm
18 kg
8 kg
10 kg
up to cable ø 12 mm
up to cable ø 16 mm
5 kg
35 kg
13
Motorised Skyline Crane
More hoisting force, more cable capacity, more power.
Wyssen Motorised
Skyline Crane
The new Wyssen motorised skyline
crane models are equipped with a
hoisting winch with increased cable
capacity and lifting force.
The remote radio control can be
expanded from two to any number of
transmitters.
The hydrostatic drive is powered by a
diesel engine.
The cable drum is locked at standstill
using a spring loaded hydraulic brake.
The Motorised Skyline Crane is fitted
with a hydraulically-driven slackpulling pulley, whereby the lifting
cable is always wound in under tension
without danger of cut in.
The minimum and maximum filling
level of the drum is monitored with
limit switches.
The carriage is equipped with cable
derailment guards.
The upper end position is controled by
a hoist limit switch.
The carriage travels over the Wyssen 2.5
and 5 ton skyline cable support saddles.
The 2.5 m long transport bars can be
used without a trailer carriage.
Technical Data
MSK 2 Motor power 55 kW / 75 hp Lifting force direct hoist up to 3 t double hoist up to 6 t 4-fold hoist up to 12 t 6-fold hoist Lifting speed up to 1.2 m/s Length 2‘935 mm Width 673 mm Weight without cable ca. 1‘200 kg Drum ø
470 mm Cable storage ø 11 240 m ø 12 200 m ø 13 160 m ø 14 150 m ø 15 125 m ø 16 115 m 14
MSK 3
55 kW / 75 hp
up to 3 t
up to 6 t without trailer
up to 12 t with trailer
up to 18 t with trailer
up to 2 m/s
3‘585 mm
950 mm
2‘300 kg
470 mm
500 m
390 m
330 m
310 m
260 m
220 m
Single-Line Cableway
The cost-effective solution for your transport problem
Wyssen Single-Line
Cableway
MES200 und MES400
Are particularly suitable for material
transportation to remote farms, alpine
huts, clubhouses, holiday homes,
construction sites, avalanche guards,
forest planting, exploratory sites, guard
posts, orchards, vineyards and other
similar objects.
Operation
For up - or downhill trips, just start the
engine and engage the gear. The carriage
drives to the opposite station on its own,
stops automatically at the adjustable
buffer stop on the cable, turns off the
engine and activates the brake.
Passenger Transport is Strictly
Model MES 200
MES 400
Load capacity Empty weight, approx. Skyline cable Travelling speed Air-cooled patrol engine With electrical starter on request
Maximum inclination Loading deck dimensions LxBxH 200 kg
263 kg
ø 11 mm 6x19
0.7 m/s
9.5 kW / 13 PS
Forbidden
400 kg
575 kg
ø 16 mm 6x31
0.7 m/s
13 kW / 18 PS
100 %
135x75x75 cm
100 %
200x86x100 cm
MES 500HY/2
For horizontal transport solution.
The carriage travels over intermediate
supports, support saddles for curves
with an angle of up to 9° and
downholder saddles (for intermediate
stations).
.User friendly
.Low operating costs
.Quick installation
.One skyline cable (main cable)
.No mainline cable
.Self-running
.Runs horizontally and in
gradients
.changing
Automatic stops at
Advantages
intermediate stations can be
switched on at the MES
Low cost
.
Technical Data
Load capacity 500 kg
Hydraulic gearbox
Two driven rollers
Petrol engine: 13 hp
at 3,600 rpm, air-cooled
Automatic spring-powered brake
Can be stopped or started manually
or automatically at any position.
15
5
Accessories
Thanks to our wide range of products, we are able to
offer you everything to do with material cableways
Support Saddle and
Draw Shackles
Spar Tree Saddle
Spar Tree Block
Pulley Blocks
Compass and Terrain
Measuring instruments
Cable Spool Drive
Tensiometer
Automatic Tensioning Device
For technical details and prices, please request our Accessories catalogue.
16
Wedge Cable Clamps with Double
Clips
Wedge Cable Clamps with Single Clips
Wyssen and DQT
intermediate
support material
Tensioning Cable Clamps
U-Clamps to
DIN 1142
Shackles
Donkey
lifts
Securite
Cable Clamps
Aluminium Rollers for Shackle
Cable Slings
Body Belts and
Climbers
For technical details and prices, please request our Accessories catalogue.
17
Accessories
Thanks to our wide range of products, we are able to
offer you everything to do with material cableways
Cable Tensioning
Clamps
Mainline Cable
Supporting
pulley
Splicing Tool
Endless Cable
Sling
Tripple Pulley Block
Multi-Tree Anchorages
Wyssen Blocks
Habegger Rope Hoists
Maasdam Rope Hoists
Anchor plates
Guyline
Cables
For technical details and prices, please request our Accessories catalogue.
18
Wyssen Skyline Crane
The productive and economic material transport and logging in the mountains.
Our system
can be used to harvest
timber from entire valley
slopes with the minimum of
development costs and the carriage,
which transports the load, requires
only one Skyline cable with a single
mainline cable.
Loads are yarded in one easy operation from either side over the entire
length of the Skyline, are raised to the
clamped carriage on the Skyline where
they are transported up or downhill
and then lowered to the roadside
landing. Note that since the logs are
directly yarded to the carriage, the
Felled and bucked timber
(1) Yarding logs
(2) Yarding bundled
smallwood
high upward lift (as
applied from the mainline
cable) aids to raise one end
of the logs and lift them over obstacles so that „hang ups“ are generally avoided.
The Sled Yarder is used for both the
installation and operation of the
Wyssen Skyline Crane. The mainline
cable, which is stored on the drum of
the sled yarder, hauls the loaded or
unloaded carriage uphill.
The Wyssen Carriages can be remotely
controlled by radio or
work automatically
as soon as it comes
to a stop and clamps
to the Skyline cable.
Then, by providing a
„slack“ mainline cable
from the sled yarder,
the carriage load hook
is lowered where it
can be attached to
the load. The load is
then raised to the carriage and when the
load hook is engaged
inside the carriage, the
clamp mechanism will be
released from the Skyline.
The load can then be transported up
or downhill as required.
Environmentally, the forest
ground and most residual trees
are protected by the Wyssen
Skyline Crane, while still providing a
sound economic alternative for the
harvesting of timber on steep mountainous slopes.
The Skyline is usually anchored
and tensioned to trees or buried logs (deadman anchors).
Under its own power the
sled yarder pulls itself to
the top operating station
on the mountain. It can
also be transportet by
helicopter.
During downhill operation the carriage is braked by the mainline cable
with the air-brake supplying the necessary retarding force to regulate the
speed. Fitted inside the drum of the
sled yarder is a another large braking
system which acts to stop, or slow the
mainline cable drum and carriage as
required.
19
OUR AGENCIES
Switzerland & all other countries
Wyssen cableways AG
CH-3713 Reichenbach
Tel.: +41 33 676 76 76
Fax : +41 33 676 76 77
E-Mail: [email protected]
Internet: www.wyssen.com
Italy
Alpifuni S.A.S. KG
Brantenbachstrasse Nr. 10
IT-39055 Leifers (BZ)
Tel. +39 0471 951 066
Fax +39 0471 593 491
Mobile phone: +39 335 657 5151
Germany
Haas Maschinenbau
Am Auwald 20
DE-87541 Vorderhindelang
Deutschland
Tel. +49 8324 933 73 0
Fax+49 8324 933 73 50
E-Mail: [email protected]
www.haas-maschinenbau.com
France
Mabboux S.A.R.L.
555, rte. de St. Anne
FR-74700 Sallanches
Tel./Fax +33 450 479 174
Mobile phone: +33 660 831 884