Elastomer Technologies & Systems
De-Icing
De-Icing Systems
Aerazur develops and manufactures pneumatic de-icing systems for aircraft.
The supply of such systems include the pneumatic elastomer de-icers and all the valves used for air control and supply as well as the controller managing system operation (cycles, data centralising, etc.).
These systems guarantee efficient protection of the wings, tail section and possibly the air intakes, for flights under icing conditions.
When ice begins to accumulate on the wings, the de-icers are inflated and deflated cyclically to break it up and cast it off. The icing cycle frequency (short or long cycle) depends on the conditions encountered as defined by JAR and FAR 25 Appendix C as well as on the application (type of airfoil, aircraft speed, altitude, etc.).
The heated de-icing system is mainly used to protect the engine propellers during anti-icing (continuous heating at minimum power to prevent ice accretion: preventive system).
- Applications
- DASH 8Q400 (DE HAVILLAND)
- C27 J (ALENIA LOCKHEED)
- Y 8 (SHAANXI AIRCRAFT)
- ECLIPSE 500
- BA 609 (BELL / AUGUSTA)
This is accomplished by a heating element embedded in an elastomer matrix directly bonded to the surface to be protected.
The Dash8-400 has been the first aircraft on which Aerazur supply full systems. The 4 system on this aircraft
are the following:
- Pneumatic De -icing system
- Ice Detection system
- Windshield Anti-ice controller system
- Door Seal system
Aerazur makes the initial ice accretion calculations at the inception of wing design then designs and supplies the entire system. This partnership makes Aérazur a leader for de-icing.
Electrical De-Icing
Aerazur proposes a complete range of electrical heaters in various thickness and dimension. Those heaters can be used for Engine Air Intake.
Aerazur also propose electrical de-icers to be fitted on propeller blades.
The new technology was developed with Ratier FIGEAC on the Transall military application.
The flat or in shape de-icers are made for metallic and composite propellers.
Aerazur was selected to provide de-icers for the new Ratier NP 2000 propeller blade version for the E2C application.
Pneumatic De-Icers
The de-icers produced by Aerazur are shaped like rubber blankets covering the ice accretion aera. In these blankets are located narrow tubes that can be inflated by compressed air.
The cyclic inflation of these tubes breaks and lifts the ice in the air.
- Applications
- ATR 42 ; ATR 72
- DE HAVILLAND: DASH 6 ; DASH 7 ; DASH 8-100 ; DASH 8-200 ; DASH 8-300 ; DASH 8-Q400
- BREGUET 1150
- AERO COMMANDER
- G 222 / C27 J
- NORD 262
- PIPER NAVAJO
- PIPER AZTEC
- DORNIER 28 and 28 D
- BEECHCRAFT 90, 99
- HAWKER SIDDELEY 748
- FOKKER F 27
- FAIRCHILD FH 227
- LET 410
- EUROCOPTER SUPER PUMA
- CASA C 295
- TBM 700
Two main designs are manufactured by Aérazur:
- Built-up: This design allow manufacturing de-icers with 2 independent redundant circuits or complex
three-dimensional shapes like engine air-intakes.
- Stitched: Aérazur has introduced an unique design stitched on a computer controlled sewing machine,
ensuring perfect reproducibility of shapes and regularity of stitches, resulting in significantly higher life
expectancy than competing designs.
Airborne Fuel
Armoured Vehicles Fuel Cells
Aérazur is the leader for design and production of flexible tanks for armoured vehicles and tanks.
The outstanding feature of these flexible tanks for armoured vehicles is their flexibility and elastic potential,
allowing them to fit snugly against structures of all shapes, even the most complex, thereby saving space, and
making them capable of withstanding structure movements over rough ground.
In addition, Aérazur can
provide a variety of technical solutions, such as:
- Explosion-proof and antisloshing foam
- Self-sealing wall
- Aerazur's main customers
- KRAUSS-MAFFEI: Leopard II
- MAK: Wiesel and Obusier 2000
- PANHARD ERC 90
- THYSSEN-HENSCHEL: Luchs
- OTO MELARA: M113A3/SIDAM 25
- And many cars manufacturers who need protection for cars for VIP or military persons...
Helicopter Fuel Cells
The division is the world leader for the fuel cells for civilian helicopter and military helicopters.
International standards governing flexible tanks for helicopters have evolved and guarantee optimal safety for the occupants. Flexible tanks for helicopters must be able to withstand crashes, as well as be self-sealing for military rotorcraft.
Aérazur and Amfuel have strengthened their position by developing their own mixtures and coated fabrics, which has allowed the development very lightweight skins while satisfying crash resistance specifications.
- Applications
- EurocopterEC 120, Tiger, Dolphin, Super Puma
- Agusta A 109, A 119, AB 139, AB 212, AB 412
- SikorskyS92, CH-53
- Bell complete line
- Denel Aviation: Rooivalk
Amfuel is ISO 9001 registered and meets all US military and OEM quality standards. They embrace 5 S and lean manufacturing programs and are a world leader in supplying fuel cells for military and commercial market. Recently developed light weight energy absorbing constructions were developed for the now closed Comanche program. These new developments are now being offered for new programs and fleet upgrades.
- Applications
- Bell full line
- Boeing CH46, CH47,MH47,AH64
- Sikorsky CH53
Self sealing to US Mil Spec and crash worthy constructions to FAA and US Mil Spec are available.
AIRCRAFT Fuel Cells
The division designs and manufactures fuel cells for numerous military and commercial aircraft manufacturers.
Commercial airplane manufacturers select our fuel cells for their longevity, ease of maintenance and replacement.
The main characteristic of the division is its capacity of closely match the customer needs. Aérazur manufactures fuel cells from from 1 liter to 10000 liters for the Airbus MRTT.
- The division supplies fuel cells as original equipment
- Canadair CL 215 and 415
- Challenger 604 , Global Express
- Learjet 31, 40,45,60
- Fokker F 27 and F 50
- Dassault Falcon 2
- Twin Commander (Aéro Commander)
- All Long Range A/C for Airbus family
- IAI G200 and 150
Many military aircraft manufacturers rely on the division for their fuel cells, for the quality of the products and for the numerous options to improve aircraft survivability and plot safety. Most relevant options are anti sloshing, inexplosibility and self-sealing.
- The group supplies fuel cells as original equipment:
- Dassault Mirage III, IV and V, Jaguar and Super Etendard
- IAI Kfir and Cheetah
- IAR 93 and 99
- KC/RC 135, B-52, S-2, A-10, EA-6, F-5, T-38
- F-15, F-16, F-18
Other Applications
Drones, missiles and support equipment.
Aérazur flexible fuel cells are installed on many tactical missiles like:
- The Matra apache / Storm Shadow
- EADS NSM/ASMPA
- Aerospatiale ANS, as well as numerous drones and RPV worldwide as the Sagem Sperwer
Fuel System
Aérazur has extensive expertise in design, development, qualification and certification support of fuel systems for helicopters, small aircraft , drones and missiles. Aerazur has been selected to supply the complete fuel system for the AB139 from Agusta/Bell , the H425 from Harbin Aircraft and the 1000 additional Litres for the Resco version of the Super Puma with Eurocopter.
A typical fuel system includes:
- The storage system, mainly including the flexible tanks, filling port, fuel and water drain valves and vent
lines.
- The gauging system, including fuel gages and discrete level detectors and an electronic software system capable
of:
* Sending stimuli to and reading the fuel gauges/level detectors
* Converting the signals to fuel quantity by the digital image of the fuel tank geometry contained in the
software
* Communicating with the onboard avionics by standard links (e.g. ARINC 429)
* Automatically diagnosing system failures
- The fuel feed line, mainly including pumps, check valve, filters, distribution valves (shut-off, cross feed),
pressure sensor, pressure switches, and the control and display panels located in the cockpit.
Fluid Logistic
Collapsible Tanks for Storage
Purpose:
To settle fast deployment fuel storage depot.
Concept:
Foldable, light weighted, quickly operational on all kinds of location and resistant to bad climatic conditions.
The storage tanks are collapsible autoportable structures with a capacity amounting to 210,000 gal to the French and US Mil Spec.
Collapsible Tanks for Transport
Purpose:
To adapt a storage capacity for the transport of liquids on all tactical vehicles (hydrocarbons, drinking
water...)
Concept:
These flexible tanks are stowed on flanges the tactical vehicle by means of adjustable streps. Their unit
capacity is from 500 to 200 000 litres. These tanks are approved by the US DOT for the transportation of class 9
Hazardous materials.
Spas Tanks
Purpose:
Thermal spring storage
Concept:
This tank is foldable and quickly set up. Its parallelepiped shape avoids any contact with the ambient air.
The whole tank is made of polyamide fabric in which elastomer is rubbed. An interior barrier wall guarantees a perfect compatibility of the material with the stored water.
Seal
1. Inflatable seal for tank turret or aircraft cockpit
2. Vapour seal sealing membrane for the aviation industry
3. Gammastop © radiation protection sheet replacing lead
4. Sealing skirt for oil storage (refinery tanks) and nuclear applications
Oil
Certain oil tanks are equipped with a floating roof to eliminate the gas phase that collects above the oil,
thereby considerably reducing evaporation losses, which is advantageous ecologically, economically and also for
safety reasons.
The annular space between the tank skirt and floating room is equipped with sealing systems which complete this
vapour release prevention effort which protecting the oil against external contamination.
Aérazur makes its own Nitrile, Neoprene and Viton coated fabrics in different thicknesses and on various textile backings to product floating roof seals with interesting properties, such as very good resistance to the products stored, and against abrasion and aging.
Our line of products:
- Delta Seal flexible foam seals
- Double shell or Tube Seal fluid seals
- Flaps for metal joints
- Green Seal compressible seals
- Secondary lip seals
Aérazur/ZODIAC also makes floating roof rainwater drainpipes called Hose-Drains.
Nuclear
Aérazur / ZODIAC is the specialist in flexible membranes for floating roof tanks for storage and
sealing of secondary system demineralised water used in nuclear power generation.
The outstanding feature of these elastomer membranes is that they are fully tight against the external
environment (no presence of oxygen), thereby preserving the initial characteristics of the product stored.
Composites Products
Starting in 1947, Aérazur Composites has been designing and manufacturing composite parts and subassemblies for the Aerospace and Defence industries. In close cooperation with its customers and basing on a rich and varied experience, Aérazur Composites has become one of the most innovative companies in these fields.
Static or moving parts for engines and engines nacelles on commercial and military aircraft (CFM 56, GE 90 , M 53 families for instance) as well as structural parts for optronics or sonar systems, enclosures for emergency floatation or escape systems are examples of the various techniques mastered by Aérazur Composites. These products are manufactured in France in a newly built plant located NW of Paris, in a location with privileged connexions via motorways or international airports.
Coated Fabric
Our manufacturing site at Caudebec les Elbeuf in northern France specialises in the production of " rubber "
and elastomer coated Textile Supports. We have been manufacturing coated, impregnated and glazed fabrics in
sheets and strips for more than 40 years, thanks to our long experience in the formulation of elastomers and
their combination with selected textile supports.
Each year, we produce more than seven million square meters of fabric and other sheets using appropriate
industrial tools.
We have an integrated series of equipment including open and internal mixers, coating looms, calanders and three
continuous rotary vulcanising machines (Auma) so that we can fulfil the demands of a wide range of sectors such
as:
Glazed fabrics for pneumatic boats, coated fabrics and elastomer sheets for industry, the military,
aeronautics, cosmetics, fluid logistics with special fabrics for fuel storage and transport tanks for the army,
for water, oils, pollution abatement uses, barrages and inflatable products, sealants, and membranes for the
nuclear and petroleum industries.
A very wide range of elastomers is manufactured, including nitriles (NBR), hydrogenated nitriles (H-NBR),
polychloroprenes (Neoprene ©), polyethylene chlorosulfones (Hypalon ©), natural rubber (NR), SBR,
Silicone, Fluoro-carbons (Viton ©), Butyl (IIR) and EPDM etc. We therefore have a wide choice for a large
number of applications and for many sectors.
We also use a wide variety of textile supports that are combined with the elastomers such as Polyamide,
Polyester, glass fibre, Kevlar ©, Cotton and Nomex ©, etc. to give a great choice of combinations
adapted to the specifications and customer requirements.
Our technical capacities include:
Rubber sheets from 0.5 mm to several millimeters thick, coated or glazed fabrics with widths of 1500 mm or more
and from 300 g to more than 4 kg/m2, on textile supports giving a resistance of several tonnes. Our experience,
our ISO 9001 quality accreditation and our commitment in terms of the environment through our ISO 14001
certification, are major factors that are appreciated by our customers in Europe and throughout the world.
Aerazur is universally recognized for the quality of its rubberised fabrics:
- wide range of colours
- high technology in many fields: temperature, fire resistance, resistance to abrasion, ageing ,etc.
Our test laboratory with a wide range of test equipment enables us to develop new complexes at regular intervals. We are ready to study any request for new materials.
Other Applications
Aérazur is present in various industrial fields providing a high variety of products based on
elastomers process.
- Coated fabrics
- Cutted joints
- Protection bellows
- Rapid rivers buoys
