Development milestones
2025 year — The heat-treatment area was expanded, including the commissioning of a new chamber electric furnace and a machine for surface hardening by high-frequency (HF) induction with numerical (CNC) control.
2024 year — Production was developed for a profiled tube with a groove Ø 25.4 mm (torsion shaft hollow), wall thickness 2 mm.
2018 year — In the second quarter, a new size is planned to be introduced:
- Rectangular tubes:
80 × 15 mm
In the third quarter, the start of production is expected for a special profile made of galvanized steel with stiffening ribs for greenhouses.
2017 year — The range of flat-oval tubes we produce was expanded with the following sizes:
- Rectangular tubes:
20 × 10 mm,
25 × 12 mm,
32 × 16 mm
2016 year — We established production of hexagonal-section tubes in "turnkey" sizes No. 17 and No. 15.
2014 year — A new 200 kW semiconductor welding generator was installed on the TESA 6-30 mill. The following new tube sizes were introduced:
- Round tubes:
∅ 60 mm - Square tubes:
10 × 10 mm
12 × 12 mm
35 × 35 mm - Rectangular tubes:
37 × 17 mm
50 × 20 mm - Flat-oval tubes:
35 × 15 mm
35 × 20 mm
40 × 20 mm
45 × 25 mm
50 × 30 mm
2012 year — The product range of our enterprise was expanded with the following new tube sizes:
- Round tubes:
∅ 40 mm
∅ 45 mm
∅ 48 mm - Rectangular tubes:
45 × 10 mm
30 × 25 mm
35 × 20 mm
45 × 15 mm
35 × 25 mm
35 × 30 mm
45 × 20 mm
50 × 15 mm
40 × 35 mm
45 × 30 mm
55 × 20 mm
45 × 35 mm
60 × 10 mm
28 × 25 mm - Flat-oval tube:
38 × 16 mm
A new KON-250 profile-grinding optical machine was commissioned, enabling manufacture of roll-tooling with outer diameters up to 250 mm. A band‑saw machine model APG 300 Plus SAF for batch cutting of tubes into blanks was installed in the finished goods warehouse. A line for grinding rectangular and square tubes was acquired.
2010 year — The company expanded the range of produced tube products and increased production capacity. The following new tube sizes were introduced:
- Round tubes:
∅ 19 mm
∅ 42 mm - Rectangular tubes:
40 × 25 mm
15 × 10 mm
20 × 10 mm
25 × 10 mm
30 × 10 mm
40 × 10 mm
50 × 10 mm
50 × 30 mm
60 × 20 mm
New technological equipment was purchased to modernize existing tube-welding mills:
- a cutting device of the “flying shear” type with a digital length-control system to replace the flying saw on the TESA 6-30 mill;
- a 200 kW solid-state generator for HF tube welding to replace the existing 100 kW tube (valve) generator on the WU-2.00 mill.
Reconstruction of the transformer substation was completed — an additional 630 kW transformer and an automated energy accounting and control system (ASKUE) were commissioned. By the end of 2010 we planned to commission a new automatic tube-bending machine capable of processing tubes with diameters 10–76 mm, wall thickness 0.5–3 mm and lengths up to 6000 mm. The machine allows automatic spatial mandrel bending of tubes by the winding method (bending radius 1.5 D – 250 mm) and by the push method (bending radius: 8 D – ∞).
2009 year — In the second half of 2009, it is planned to commission a new longitudinal coil slitting line for coils 500–1250 mm wide and 0.5–4.0 mm thick.
Summing up 2009, the following main and most significant events can be highlighted:
- A storage area for raw coils was created. Equipping the area with a gantry crane allows a substantial stock of raw coils to be kept on a limited footprint.
- A new longitudinal cutting unit APR 0.8–4.0×1300 was installed and successfully commissioned; it provides slitting of coils 0.8–4.0 mm thick, up to 1300 mm wide, with weights up to 12 tonnes.
- The complete cycle of manufacturing roll tooling was mastered in-house, including geometry calculation and finishing with profile grinding.
- The finished goods warehouse was re-equipped and its storage capacity increased, enabling the company to meet customer requests on the day of inquiry.
2008 year — During 2008, the WU-2.00 mill was modernized:
- New profile-forming stands were installed (which deform the round mother tube into a profile of the required configuration in the calibration mill line); the equipment was manufactured by Atticon Machinery (USA).
- A new 3-roll welding stand was installed; the equipment was manufactured by Atticon Machinery (USA).
- A new packing machine was installed, providing programmable stacking of finished tubes into packages of specified shapes and sizes.
- Round-section tubes are stacked into hexagonal packages; rectangular and square-section tubes are stacked into rectangular and square packages. The equipment was manufactured by Assm (Czech Republic).
2005 year — June 2005 — preparation for the production of profile tubes 20×20, 25×25 and 30×30 mm was completed, as well as for a special 9.4 mm size for thread rolling for lamp fittings.
From 2000 to 2005, CJSC BelTEN, together with OJSC Severo-Angarsky GMK (now CJSC Razdolin Periclase Plant), implemented a large-scale program to create and introduce into the operating production of OJSC SAGMK (CJSC RPZ) a fundamentally new technology for grinding periclase electrical-grade powders, providing the highest technological (flowability, apparent density) and electrical-insulating properties in the production of electric heating elements (TENs). Within this program, our specialists performed the following work:
- studied the physical parameters of periclase electrical-grade powders that affect their technological and consumer properties;
- proposed a new powder grinding technology using centrifugal-impact crushing;
- selected process equipment and supervised its manufacturing;
- conducted acceptance tests of the grinding complex with processing of a trial batch of raw material (fraction 20–0 mm) of 5 tonnes at CJSC BelTEN;
- adjusted the grinding complex and worked out the crushing process modes on the premises of CJSC RPZ.
In addition, CJSC BelTEN has cooperated for more than five years with the Institute of Solid State Physics (IFTP) of the National Academy of Sciences of Belarus on creating an industrial technology for producing a new generation of flat electric heaters based on metal-ceramics. The key advantage of metal-ceramic heaters over existing types of electric heaters (TENs, cast-iron hotplates) is a significant (20–30%) saving of electrical energy used for cooking. In the second half of 2005 CJSC BelTEN will produce the first batch (5,000 units) of tabletop electric hotplates with metal-ceramic heaters.
2002 year — In the second half of 2002 it is planned to master production of a tube with a diameter of 25 mm.
2004 year — Production of profiled tube 40×20 and round tube with diameter 8 mm was established.
2001 year — The range of tubes produced by CJSC BelTEN was supplemented with new sizes:
- Round tubes:
∅ 20 mm; - Rectangular tubes:
15×15 mm;
30×20 mm.
The geography of partners expanded due to deliveries of tubes to the Lithuanian market.
2000 year — Production of tubes with diameter 10 mm was mastered.
The product range was expanded — together with INNOVENT LLC (Moscow) production of AO-EVO heating units under the trade name "Zefir" with nominal capacities of 15 and 24 kW was established.
1999 year — Start of export shipments of tubes. Ukraine became the first importing country of our products.
1995 year — CJSC BelTEN began implementing a project to create a tube-welding production.
Two years later, installation of equipment began on the company’s own production site in the village of Kuntsevshchina, Minsk district.
In the second half of 1998, the first batches of tubes with diameters 16 and 12 mm made of low-carbon and stainless steels passed comprehensive technological tests and were recognized as suitable for TEN manufacture.
1993 year — Closed Joint-Stock Company BelTEN was established in February 1993 to organize production of tubular electric heating elements (TENs).
At present, more than 1,000,000 TENs of over 3,000 sizes are.
