rESOURCES

Cantrex uses Aluminium billets of Prime quality from the leading and largest manufacturers of the world. It enters into the year long contract with these selective producers to ensure the materials of consistent quality is always available through out the year for our customers.​

Content Sourced from : Aluminium Extruders council

Extrusion Process

In the aluminum extrusion process, log is the starting stock for the extrusion operation. The logs are cut into desired extrusion billet is the length charged into the extrusion press container. Billet size will vary based on a number of factors, including the requirements of the extrusion press and design.

Direct Extrusion Process

In the aluminum extrusion process, log is the starting stock for the extrusion operation. The logs are cut into desired extrusion billet is the length charged into the extrusion press container. Billet size will vary based on a number of factors, including the requirements of the extrusion press and design.

Image courtesy : aluminium extruders council

Once the desired shape for the finished profile has been developed and the appropriate aluminum alloy selected, an extrusion die, and associated tooling, is produced. In the actual extrusion process, the aluminum billet (a cast “log” of extrusion feedstock) and extrusion tools are preheated. During extrusion, the billet is still solid, but has been softened in a furnace. Note: The melting point of aluminum is approximately 1,220° Fahrenheit (660° Centigrade). Extrusion operations typically take place with billet heated to temperatures in excess of 700°F (375°C), and — depending upon the alloy being extruded — as high as 930°F (500°C).

The actual extrusion process begins when the press ram starts applying pressure to the billet within a container.

As pressure is applied, the billet is first crushed against the die, becoming shorter and wider until its expansion is restricted by the container walls. Then, as the pressure increases, the soft (but still solid) aluminum has no place else to go and begins to squeeze out through the shaped die to emerge on the other side as a fully formed profile. The formed profile is cut off at the die and the remainder of the metal is removed to be recycled. After it leaves the die, the still-hot extrusion may be quenched, mechanically treated, and aged to impart desired metallurgical properties and physical performance.

After sufficient aging, whether in an aging oven or at room temperature, the profiles are moved to other areas of the plant and it is finished as per the customers need.

Powder coating:
Prior to powder coating the profiles are buffed and cleaned to remove the atmospheric weathering of the aluminium before it under goes the process of Cleaning,Reactive Organic Chemical Coating, Drying and powder coating . Then they are passed through curing oven to ensure the powder is evenly spread and coated in the extrusion profile. The chemicals and paint are bought from USA and are applied confirming to the AAMA standards

Cantrex also manufactures Wood grain finish on the products. Presently the materials are bought from USA supplier and Italian suppliers to give an excellent finish.

Content Sourced from : Aluminium Extruders council

Other Products

Anodised Products : 

  • Cantrex supplies
  • Entrance doors materials
  • Shop fronts
  • Curtain wall systems and Sliding windows.

Aluminium Coils:

  •  Cantrex offers a wide selection of colours and gauges in pre-painted aluminum coil.

*Custom colours are available by request.  Minimum order.*

Aluminium Sheets: 

  • We supply aluminium sheets in following gauges of 8 x 4 sizes
  • aluminium threaded sheets in plain, powder coated and Wood finish ranges

Aluminium Grills: 

Cantrex deals in an extensive range of Aluminium extruded grills to fulfill the discerning customer needs These grilles are made up of superior grade raw material sourced from a trust able and experienced dealer in the market. Fabricated with high quality pure aluminium these grills are strong and sturdy in nature and ensure long lasting service .

*These materials are available in 8 x 4 size in different colours like white, black etc.*

Glass: 

  • We deal in float glass for window, Door and Shop front.
  • We have clear, Euro grey Bronze glass is available Mostly we stock 6mm glass.
  • We can provide cut glasses as per your need.
  • We can also offer container loads for the following sizes and thickness.