Medium-Frequency Resistance Welding Syst

Bihler B 5000

Complete medium-frequency resistance welding system, manufactured 2016, consisting of the B 5000 inverter control cabinet (S/N 29636) paired with the Bihler ET 70 welding transformer (70 kVA, S/N 82641). Both units are year-matched and original to each other. MF 5000 digital welding controller with 14" color display, closed-loop current/power/energy regulation, tool management, production data logging (PDE/MDA), and NC axis interface. Frequency adjustable 1,000–5,000 Hz. Original operating manual included.

Manufacturer: Otto Bihler Maschinenfabrik GmbH & Co. KG,
Type: B 5000
Serial No.: 82641
Year: 2016
Power supply: 400 V, 3-phase, 50 Hz
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Control voltage: 24 VDC
Total connected load: 50 kVA (standard); max. fuse 125 A
Inverter frequency: adjustable 1,000–5,000 Hz in steps
Short-circuit switching capacity: 6 kA
CE marked
Welding Transformer — Nameplate Data Type: ET 70.0.G-10000/4
Rated power at 50% duty cycle: 70 kVA
Secondary voltage (U₂₀): 4 V, up to 3 V (U₂ₙ), stepped (4 tap positions)
Input voltage: 500 V / 1000 Hz
Secondary current at 50% ED (Iₙ): 10 kA (rated), cos φ: 0.9
Short-circuit voltage (Uₖ): 5%
Short-circuit current (Iₖ): 10 kA
Cooling flow: 6 l/min
Insulation class: F