JAP TRADING, s.r.o. > Key business lines > Manufacturing

Manufacturing

Manufacturing within JAP TRADING, s.r.o. has been a separate division since 1998. Taking into account continuous production expansion in the company, the manufacturing develops on a running basis and the most significant investments are made in it.

Working and measuring graphite electrodes

Individual worksites carry out full machining of graphite electrode tapered threads of all diameters, i.e. 150 - 610 mm including nipples.

Part of this operation is also a semi-automatic line for measuring standard parameters such as length, diameter, weight, specific weight, electric resistivity and bending strength.

Due to growing production requirements a new automatic machining centre is going to be put into operation soon, with the capacity of 12,000 t/year.

Measuring line 1 Sorting tables Electrode marking Measuring strength values

Impregnation of graphite electrodes

This operation was started in 2009 as a result of R&D in the area of reducing electrode consumption by burn-off.

Impregnation technology rests in saturating graphite electrodes with a chemical solution followed by subsequent heat treatment. The electrodes adapted in this way show not only a longer operating life but also better physical parameters.

Briquetting and pelletization of raw materials for metallurgy and foundry industry

Installed equipment enables processing various undersized and dust materials in required shapes and dimensions. The operation is equipped with three briquetting lines with the total capacity of 30,000 t/year.

A new facility comprises mobile equipment for processing of fine dust waste into pellets.

Processing graphite products

This operation unit focuses on machining graphite semi-finished products to the final product shape, such as graphite bars, blocks, crucibles, capsules, moulds, insulation rims and others.

The worksite is equipped with a modern CNC milling machine, lathes, and a vertical and horizontal band-saw with diameter up to 800 mm.

Repairs of sliding gates of casting ladles

A complete line for repairs of sliding gates enables putting repaired gates back into operation with the aim of lowering the cost of new gates. The operating life of refurbished ceramic gates can be fully compared to new gates. Depending on the level of wear, gates can be refurbished repeatedly.

Production of refractory repair materials based on magnesite for electric arc furnaces

For the repair of steel furnace bottoms or slag lines and the furnace door repair, the production of alkaline unmould mixtures under the JAMAG trade-name has been launched. This product based on magnesite is prepared in continuous mixing equipment with the capacity of 8 t/hour. The mixture is packed in big-bags.

Metal-processing

This operation unit produces various machinery parts for both our own needs and job-order manufacture.

Machinery equipment

  • Centre lathes SU 50, SU 90
  • Flat-grinding machine BS 300
  • Milling machine FG32, Atmos
  • Drilling machine VO32, VO50
  • Wire straightening machine with cutting device (max. diam. 8 mm)
  • Sheet shears (th. 10mm)
  • Band-saw for metals (max. diam. of cut material – 450 mm)
  • Eccentric presses max. 63 t
  • Hydraulic press 100 t
  • Welding aggregates MIG/MAG, TIG methods, plasma
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