Setron

Spiral, lateral and pre-stressing armouring strands are fitted into one half of the mould. It is then filled with the exact pre-determined amount of concrete liquid required, before it is mated and locked with the other half.

After the lateral strands have been tensioned the mould is spun horizontally at approximately 500 rpm. The liquid concrete spreads uniformly in the mould, is pressed onto the mould wall and is thereby highly compressed. The centrifugal forces at play in the mould compress the concrete at up to 20 times the force gravity, achieving strengths up to 115N/mm2.

The special compression achieved by the spun concrete process means that the pole reaches 80% of the final strength within approximately twelve hours.

After removal from the mould the pre-tensioning strengths of the strands in the concrete are introduced. Towers with diameters over 2.4 m are produced using the vibration method with a concrete quality of B55, and a maximum section length of 2.5 m. In the future towers will be produced up to 7 m in diameter and section length up to 3.8 m.

These sections, cylindrical or conical, are then post-tensioned while being mounted together on-site and thereby achieve excellent stiffness at heights over 100 m.

One of the projects was the installation of a GRP antenna pole on a building used for agricultural purposes. For safety reasons, an antenna pole made of GRP was selected. The combination of steel for the area at the base of the pole and GRP inside and outside the pole is easy to achieve by means of modular construction. The lower part of the antenna pole is made of steel and is thus extremely resilient. Owing to the non-conductive properties of the fiberglass-reinforced plastic, the top part of the pole is made of GRP. The necessary antenna and electric cables are installed on the outer facade of the building.

Industry Sectors

TELECOMMUNICATIONS

Our top priorities are orientation to the interests of our customers, and maximum-possible customer satisfaction.

More than 7,000 antenna towers has been produced with heights from 10 to 130 meters, and up to 4 meters in diameter. These systems include poles executed as spun concrete, as well as steel and plastic poles. With over 30 years of experience in spun-concrete technology, Pfleiderer is the leading manufacturers of antenna mounts in Europe.

We support you with all services required for planning, implementation, and commissioning of a telecommunications network. Our turnkey package includes planning and design of base stations, project implementation (including steel and antenna structures, electrical engineering, lightning protection, etc.), as well as the construction and commissioning of systems- technology facilities. In addition to our offer for open-area sites and roof locations, we also provide the infrastructure required for outdoor and indoor locations, rooms for systems technology, and container locations in turnkey procedures. We guarantee closeness to our customers and fast problem solutions onsite.

In cases in which new construction is not possible, or if the authorities do not grant a building permit, you can profit from our efficient detail solutions for replacement construction, special foundations, retrofitting with existing structures, as well as reinforcement of telecommunications poles. Structural stability and optimal utilization of your location are always our top priorities in such projects.

GRP - A Clear Advantage
Top Quality - Greater Safety

We make it easier to implement antenna poles in open areas and on roofs in many different ways.

Smooth, homogeneous surfaces
Non-conductive - fully insulated owing to the material properties (protection against lightning)
The pole is weather and corrosion resistant - No need to remove corrosion or to paint the pole
Insensitive to UV radiation
GRP poles are extremely scratch resistant
Poles can be coloured in any attractive, sun-fast RAL colour

Simple to Assemble - Easy to Transport

The GRP antenna poles and mounts can be completely pre-assembled in the factory. This considerably shortens the installation time. Assembly and transport are no longer a problem due to the low dead weight (see also Technical Details).
Our poles can be supplied with an optional tipping base plate. This makes it possible to mount the antennas, ladders and cable ways already on the ground.

Manufacture

In a patented spinning procedure the poles are manufactured in chrome-plated steel moulds using glass fibre composites with polyester resin. The glass-fibre reinforcement with its high tensile strength is optimally aligned according to the direction of the load. The strong centrifugal forces exerted during the production process cause the compaction of the reinforcement and matrix materials.

Clever detail solutions

It is becoming more and more difficult to find acceptance among the general population for the integration of radio transmission facilities in urban areas. We likewise consider it part of our responsibility to counter this pressure.

We combine trends with the latest in technology, and thereby create innovative products customized for your requirements. In a pilot project together with a customer, we have developed our so-called lamp mast with integrated antenna units. The special feature of this pole is that the antennas for UMTS, GSM, and radio link system can be hidden in the supposed lighting units. These lighting components are made of electromagnetically permeable fiberglass-reinforced plastic, which ensures favorable transmission of radio telecommunications signals.
Public debate on the optical effects of transmitting stations has directed prime attention to the topic of the cladding of poles and antennas. One highly promising alternative is a pole very cleverly disguised as a tree. We also offer effective solutions for poles on building roofs. Design elements enclose the antenna mount and enable it to optimally match the surrounding townscape.

Projects

TRIPOD in Ulm / Germany
Technical Data
Height: 80 m
Antenna wind area: 150 m²
Material: Steel plate girder
Year of Construction: 1998

Microwave Radio Tower (Collector) / Germany
Network for mobile telecommunication stations via microwave technology. Pfleiderer towers permit an antenna capacity up to 250 m² for microwave radio antennae up to 4 m diameter and guarantee a microwave stiffness at even most extreme weather conditions.

Mobile and Microwave Radio Tower
Simple mounting of working platforms and pedestals at the concrete tower permits efficient tower utilisation resp. antenna
mounting in the vertical tower segment.

Multi functional tower Madrid / Spain
High performance in development and production permit maximum flexibility.

Combination possibilities with:

GSM/UMTS-Antennae
Microwave Radio Antennae
Advertising Space
Lighting and Floodlights
Weather Station
Other functional Utilisation

Roof top site in Bielefeld, Germany
A fibreglass-reinforced antenna carrier on top of a building
Technical Data
Height: 7,5 m
Partition: one piece
Climbing: Soll Y-Climbing Ladder
Cable Duct: C-Rails
Antennae: Sector-and
Microwave Radio Antennae
Year of Construction: 2000

Roof top site in Spain
A central fibreglass-reinforced antenna carrier on top of a building.
Technical Data
Height: 10 m
Partition: 4-part
Working Platform:

= 1 m

Camouflage Tree Tower in Neumarkt (Germany)
Special Solution for a sophisticated Site Design.
Technical Data
Tree Species: Pine Tree
Height: 12 m
Delivery Heights: 10 - 30 m and/or special lengths
Cable Management: internal
Antennae: Sector- and Microwave Antennae
Year of Construction: 2001

The Tower Pool Park / Germany shows a wide range of products.

Spun Concrete Antenna Tower
Steel Monopole
Steel Lattice Tower
Fibreglass-reinforced Plastic Pole
Temporary Towers
Camouflage Tree Tower for GSM/UMTS-Antennas
Mobile Tower Foundations
Cable Suspension Bridges
Container for Systems Technologies

List of reference/Germany

GSM/UMTS-Network Operator	System Suppliers	PMP-Operator	Miscellaneous
Deutsche Telekom AG Deutsche Funkturm GmbH DeTeImmobilien T-Mobile Deutschland DeTeLine E-Plus Mobilfunk GmbH Vodafone D2 O2 (former Viag Interkom) Mobilcom Multimedia Arcor (GSM-R)	Ericsson Siemens Nokia Nortel Dasa Motorol	Broadnet Callino Firstmark, etc.	Public Broadcasting Corporation Public Authorities (Railway, Police, Military)

List of references/International

Austria

CONNECT AUSTRIA
MAXMOBIL
MOBILCOM
TELERING

Czech Republic

RADIOMOBIL
SIEMENS

Egypt

MISRPHONE
NEC

Finland

SONERA

France

BOUYGHUES TELECOM
FRANCE TELECOM

Great Britain

ORANGE

Hungary

WESTEL

Ireland

DIGIFONE
ESAT
ESB

Japan

NEC Japan
NTT DoCoMo

Poland

ALCATEL
CENTERTEL
ERICSSON
PTC
SIEMENS

Portugal

TELECEL

Spain

AMENA
TELEFONICA MOVILES
VODAFONE

USA

AMERICAN TOWER
BELL SOUTH INT.
CROWN CASTLE
ROHN IND.

wholesale air max|cheap air jordans|pompy wtryskowe|cheap huarache shoes| bombas inyeccion|cheap jordans|cheap sneakers|wholesale jordans|cheap china jordans|cheap wholesale jordans|cheap jordans|wholesale jewelry china|cheap jerseys