ALDUR 240: Sintered Ceramics

Resistant to chemical abrasion

Aldur 240 is a technical ceramic which offers exceptional resistance to abrasion. It provides efficient protection against chemicals. Its remarkable mechanical features allow manufacturing of 1.5 to 75mm thick coating.
Aldur advanced characteristics make it really resistant to sliding abrasion.

Download Aldur documentation

APPLICATIONS

Aldur 240 is made of a complex mix of powders with 92% pure alumina (Al203). The powder is mixed and compressed under very high pressure. At this stage, the piece can be cut and machined. Once the block is ready, it is put in the oven at 1500°C. By the end of the process, ALDUR 240 gains an extremely compact structure with high density and extended hardness which enables much better resistance than any other usual material.

ALDUR 240 retains its characteristics unchanged at high temperature (1200°C). It is not responsive to atmospheric agents, chemicals and acids (except for hydrofluoric acids).
Aldur® is a trade mark registered by Produr.

The following equipments can be made of Aldur :

  • Injection nozzle
  • Cyclones
  • Crushers
  • Feeders
  • Splitters
  • Pipes
  • Conveyors
  • Silos
  • Hoppers
  • Fan scroll
  • Cones
  • Chutes
  • Concrete mixers
  • Pneumatic and hydraulic conveyors pipes

 USUAL PROGRAM: gluing of standard tiles

Thickness (mm)ShapeSize (mm)
1,5 to 610 x 10 mm or 20 x 20 mm tiles on pannels to glue344 x 344 ou 500 x 500
6 to 75Tiles to glue or weld100 x 100 ou 100 x 150


Aldur 240 tiles are available in many sizes. If you need special formats, we can make specific tailored parts to fit in your facilities.

Please contact us.

MECANICAL CHARACTERISTICS

Density3,57
Mohs Hardeness (diamond reference= 10)9

Abrasion resistance (appropriate cases)

Superior to DURHART(1)

(1) see technical sheet

FIXING TECHNIQUES

  • Gluing : epoxy, silicone or polyurethane
  • Welding on a blocking metal cap glued in a conic hole with silicone or polyurethane
  • Vulcanisation on rubber or rubber + steel (Algum range products)

Non-contractual. Produr reserves the right to change products characteristics at any time without notice.

DURHART 200 : Molded ceramics

The molded protection which adapts to any shape

Durhart 200 is an electrofused ceramic which gives great abrasion resistant performances.
All kinds of formats can be molded to shape abrasion resistant coatings. Durhart 200 provides resistance to thin aggressive tangential particles, even with high speed, or bigger elements with moderate shocks (e.g. hoppers or chutes).

APPLICATIONS

Durhart 200 is made of a mix of pure metal oxides  (mainly Alumine, Zircone and Silice), melted in an electric oven at very high controlled temperature (over 1800°C). The mix is then molded in sand casts with the desired dimensions.

Durhart 200 ALDUR 240 retains its characteristics unchanged at high temperature (1500°C). It is not responsive to atmospheric agents, chemicals and acids (except for hydrofluoric acids).

Durhart can be used in many cases :

  •  Pneumatic or hydraulic conveyors parts
  •  Crushers coatings
  •  Transfer chutes
  •  Cyclones
  •  Hydrocyclones
  •  Hoppers
  •  Splitters cones
  •  Walls and floors coatings

The shape of Durhart 200 parts (tiles, pipes, bends, cones, nozzles) depends on the structure to be protected.
Blocking mortar type is determined by equipment operating conditions : environment and temperature.

FABRICATION PROGRAM

  • Standard pipes
  • Standard tiles
  • Special tailored parts
Thickness (mm)ShapeSize (mm)
25 to 50 

Sealing or gluing tiles

20 x 150 to 250 x 250
25 PipesMini Ø50 inside
30BendsMini Ø50 inside

 

NB: Please contact us for special sizes, tailored parts or specific requirements

MECHANICAL FEATURES

Density3.5
Mohs Hardness (diamond reference= 10)9

Abrasion resistance (appropriate cases)

3 to 5 times Superior to DURZALT (1)

(1) See technical sheet

Fixing techniques

After adjusting and calibration of each Durhart 200 part, fixing is performed by either:

  • mortar adapted to operating conditions (temperature or chemichals)
  • bolting on the part through a counter-bored hole. An intermediary layer of thin flexible material must be laid beforehand.
  • welding of metal inserts casted in the part during the molding operation

Download DURHART documentation

Durzalt 40 : melted basalts

The power of basalt for your equipments

Durzalt 40 is made of high quality melted basalt with great abrasion resistance performances.
Any shape of abrasion resistant coatings can be made by molding.
Durzalt 40 provides resistance to thin aggressive tangential particles, even with high speed, or bigger elements with moderate shocks. It provides more efficient wear resistant protection than metals and greater savings.

Durzalt 40 is obtained by controlled fusion of natural basalts coming from selected volcanic slides. Crushed precisely to the right size, it is then melted at 1250°C.

Durzalt 40 is then cast in sand or metal molds to get the good shapes.

Applications

Durzalt 40 is specifically recommended to treat severe abrasion zones with moderate impacts. Durzalt’s great sliding features facilitate the flow of substances in:

  • Hoppers
  • Chutes
  • Chain conveyors
  • Pipes for pneumatic or hydraulic  conveyors
  • Cyclones
  • Hydrocyclones
  • Splitter cones
  • Walls coating
  • Industrial flooring

The shape of Durzalt 40 parts (tiles, pipes, bends, cones, nozzles) depends on the structure to be protected.
Blocking mortar type is determined by equipment operating conditions: environment and temperature.
Colours of Durzalt 40 vary from red-brown to bright black depending on the mould type.
Durzalt 40 retains its characteristics unchanged at high temperature (350°C). It is not responsive to atmospheric agents, chemicals and acids (except for hydrofluoric acids).

FABRICATION PROGRAM

  • Standard pipes
  • Standard tiles
  • Special tailored parts
Thickness (mm) ShapeSize (mm)
30 to 50

Sealing or gluing tiles

200 x 150 to 250 x 250
18 to 25PipesMini Ø50 inside
25BendsMini Ø50 inside

NB: Please contact us for special sizes, tailored parts or specific requirements

MECANICAL CHARACTERISTICS

Density 3.0
Mohs Hardness (diamond reference= 10)8
Résistance à l’abrasion dans les cas adaptés6 à 7 fois supérieure à l’acier.

FIXING TECHNIQUES

After adjusting and calibration of each Durzalt 40 part, fixing is performed with mortar adapted to operating conditions (temperature or chemicals).

Download DURZALT documentation