Buflex SEM Reeling Cable

Buflex SEM Reeling Cable

Buflex SEM is a high-performance medium-voltage reel cable featuring a 3+3 symmetrical core structure (3 phase conductors + 3 grounding conductors). The conductors are made of highly flexible bare copper conforming to IEC 60228 Class 5, insulated with EPR (ethylene propylene rubber), and features a double-layer PUR (polyurethane) outer sheath with a torsion-resistant reinforced braided layer. Rated voltages range from 3.6/6 kV to 12/20 kV, with a maximum operating temperature of 90°C (250°C during short circuits), a dynamic bending radius of 10 times the outer diameter, a maximum winding speed of 120 m/min, maximum tensile load of 20 N/mm² × copper cross-sectional area.

  • iso-certification
  • ce-certification
  • ccc-certification
  • ul-certification
  • abs-certification

Buflex SEM Reeling Cable Construction

Conductor : Flexible plain copper class 5 IEC 60228
Insulation : EPR
Protective earth conductor : Flexible plain copper class 5 IEC 60228
Semi conductive layer : On earth conductors
Outer sheath: PUR Double layer with anti twisting reinforcement

Buflex SEM Reeling Cable Application

  • Port and Terminal Cranes: Ship-to-Shore Container Cranes (STS), Rubber-Tired/Rail-Mounted Gantry Cranes (RTG/RMG), grab unloaders, etc.
  • Mining and Bulk Material Handling: Bucket wheel excavators, stackers/reclaimers, etc.
  • Tunnel Engineering: Tunnel Boring Machines (TBMs), which place high demands on the impact resistance and tensile strength of cables.

Buflex SEM Reeling Cable Technical Data

  • Max. tensile load: 20 N/mm2 of copper cross section
  • Reeling speed: up to 120 m/min
  • Nominal voltage: 3.6/6 kV to 12/20 kV
  • Max. surface temperature: 
  • – fixed installation: – 40 °C up to + 80 °C
  • – mobile operation: – 25 °C up to + 80 °C

Buflex SEM Reeling Cable Feature

  • Advantages of PUR Sheathing: Compared to traditional neoprene sheathing, PUR sheathing is thinner and lighter, with a typical reduction in outer diameter of 12–20% and a weight reduction of 18–28%, while offering significantly better abrasion resistance than rubber materials.
  • Torsion Resistance: A high-strength synthetic fiber braided mesh (torsion-resistant reinforcement layer) is embedded between the two layers of the jacket, effectively preventing the cable from twisting into a spiral shape during repeated winding.
  • Weather Resistance: Resistant to oil, UV rays, ozone, and moisture, making it suitable for harsh outdoor environments such as ports and mines.

Buflex SEM Reeling Cable Specification

Number of cores and nominal cross-sectionNumber of cores and nominal cross-sectionOuter diameterWeight approx.Tensile load
(mm2)Min. (mm)Max. (mm)(kg/km)(N)
3.6/6 (7.2) kV
3 x 25 + 3 x 10353819002100
3 x 35 + 3 x 10384123002700
3 x 50 + 3 x 10414428603600
3 x 70 + 3 x 16454838005160
3 x 95 + 3 x 1649.55347006600
3 x 120 + 3 x 255457.559008700
3 x 150 + 3 x 2557.561.5695010500
6/10 (12) kV
3 x 25 + 3 x 10353819002100
3 x 35 + 3 x 10384123002700
3 x 50 + 3 x 10414428603600
3 x 70 + 3 x 16454838005160
3 x 95 + 3 x 1649.55347006600
3 x 120 + 3 x 255457.559008700
3 x 150 + 3 x 2557.561.5695010500
8.7/15 (18) kV
3 x 25 + 3 x 10353819002100
3 x 35 + 3 x 10384123002700
3 x 50 + 3 x 10414428603600
3 x 70 + 3 x 16454838005160
3 x 95 + 3 x 1649.55347006600
3 x 120 + 3 x 255457.559008700
3 x 150 + 3 x 2557.561.5695010500
12/20 (24) kV
3 x 25 + 3 x 10444726502100
3 x 35 + 3 x 1044.547.529002700
3 x 50 + 3 x 1045.54933003600
3 x 70 + 3 x 1649.55343005160
3 x 95 + 3 x 165356.551006600

Why Huadong Cable

Our vision is to become an internationally renowned cable brand. Customer satisfaction, employee advancement, and corporate growth are our service tenets. High standards, globalization, and building an international brand are our business philosophy.

About HuaDong

Henan Huadong Cable Co., Ltd., established in 1999, is a state-level high-tech enterprise integrating scientific research, production, and trade. Deeply engaged in the Belt and Road Initiative, Huadong Cable exports its products to over 130 countries worldwide, covering regions including Europe, South America, North America, the Middle East, Africa, Asia, and Oceania.

HuaDong Technology

HuaDong Cable focuses on technological research and development, employing 60 professionals with senior technical titles and holding over 100 invention and utility model patents. The company has assembled a team of experienced technical engineers to ensure the quality of its cable products.

Main Products

Our main products: Marine cables, power cables, overhead cables, fire-resistant cables, low-smoke zero-halogen cables, rubber cables, high-temperature resistant cables, instrumentation and control cables, solar cables, and other products.

ISO, SGS, BV CERTIFICATION; TECHNICAL PATENTS AND PRODUCT CERTIFICATION

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TECHNICAL AND CLIENTS

130+

Export Countries

100+

Technical Patents

3 billion+

Annual Productivity

400+

Employees

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Please feel free to contact us if you have any questions.

TECHNICAL & SALES SUPPORT

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