Material Manufacture

How simple...

Material Manufacture

It’s almost unbelievable that from several basic raw materials can come an exceptionally high-quality material with excellent sorption and desorption characteristics, capable of meeting demanding safety and environmental protection standards.
The uniqueness of this highly porous material rests partially in its capability to absorb acetylene even without the presence of a solvent.
In the picture, at 5000x magnification, we clearly see the high porosity of the calcium silica hydrate crystalline structure (photomicrograph). Each small change in composition or manufacturing technology of this calcium silicate with fibreglass can lead to significant changes in material properties. Our entire manufacturing process is thus fully automated, meaning that:

  • the processes necessary during each individual step are computer-controlled and checked,
  • during its journey down the manufacturing line, each cylinder is monitored by a database system that carefully ensures adherence to ISO 9001 quality standards.

Mixing

It all begins in huge hoppers supplying silica sand and lime to the mixing apparatus. Fibreglass is also added in the appropriate amount. Automatic material feeding ensures an exact ratio of raw materials, and thus also the high quality of the end product. To achieve ideal durability, we even use demineralised water from our own treatment facility.

Hardening

After precise machine mixing, the resultant paste used to fill cylinders, which are then sent to modern curing ovens. Inside the ovens, the material undergoes drying and curing according to an optimum temperature curve. Precise adherence to temperature is very important for the quality of the sorption material, which is why once again the operation of all ovens is computer-controlled.

Painting

After they cool, the cylinders are hung on a conveyor that passes through the entire sandblasting and painting line. First they are thoroughly cleaned of all remnants and dirt by a steel bead blasting process, and then they receive their proper coat of paint. The paint is applied electrostatically in sealed chambers, which ensures much better substrate adhesion than with standard spray application. For durability, the cylinders are first primed and then painted with the final coat. All water-soluble epoxy or polyurethane-based paints are both perfectly ecologically safe and possess superior abrasion resistance.

Filling

The cylinders are then filled with a solvent – acetone or DMF. A computer once again controls precise dosage according to the size and type of cylinder. UL1 and UL2 materials can be used to fill all acetylene cylinders of any type, brand or size. We can offer cylinders from practically all major manufacturers, or the customer can supply his own cylinders. Upon request, the cylinders can also be filled with a small amount of so-called saturation acetylene.

Final Inspection

All information on each individual cylinder is stored in computer memory, where it is available to the inspection team during the final preparation of cylinders for shipment. Thanks to careful final inspection, we for example had only a 0.0004% return rate in 2006 (these were not related to fill material characteristics nor to safety).

Prices

In order for us to always be able to give you the best price possible, we must adjust our prices flexibly according to variations in the price of steel (and thus also cylinders) and first and foremost of acetone and DMF. Thus for current pricing, please write us at or call us at +420 475 668 863.

Certificates

TUV NORD

The service provides


LINDE VÍTKOVICE a.s.
Hrbovická 155
400 01 Ústí nad Labem

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