Required by BMW and meets the requirements for Ford

Product Overview

The Wieländer+Schill BSP 03 Stud Welding Machine (BMW Part No. BMWA9500748) is a specialized 220 V short-cycle drawn arc welding system designed for auto body shops & collision repair centres. Its primary purpose is the safe, non-destructive removal of high-strength structural punch rivets (body-bound rivets) found on modern BMWs and other advanced aluminum/steel-intensive vehicles.

By welding a stainless steel draw pin (pulling stud) directly onto the head of the factory punch rivet, the BSP 03 allows technicians to extract the rivet using a dedicated mechanical pulling tool. This process eliminates the need to drill out hardened rivets, preserving the structural integrity of the surrounding sheet metal. Engineered for reliability, it features automatic voltage stabilization and immense power reserves to handle challenging repair scenarios seamlessly.

Key Features

• Short-Cycle Drawn Arc Technology: Delivers rapid, highly concentrated DC welding current to securely attach draw pins to factory rivets without burning through the thin automotive sheet metal.

• Drill-Free Rivet Extraction: Specifically developed to weld stainless steel draw pins (Ø 5 or 6 mm) to body-bound punch rivets, enabling clean removal of structural fasteners without enlarging the original mounting hole.

• Automatic Voltage Stabilization: Features stepless, bidirectional regulation of the charging voltage. The machine automatically maintains the required voltage, ensuring consistent weld penetration even if the shop experiences mains voltage fluctuations (-10% to +15%).

• High Power Reserves: The robust 3-phase 220V architecture provides electrical capacity for difficult, high-resistance welding tasks on advanced high-strength steels.

• Comprehensive OEM Package: The BMW-approved setup includes the BSP 03 control unit, a heavy-duty stud welding gun, dual earth cables with vice grips, a dedicated shop trolley, and an initial supply of V2A-SA stainless steel draw pins.

Technical Specifications

Ideal Use Cases & Applications

• BMW Structural Repair: An OEM-recommended necessity for BMW-certified collision centres performing structural teardowns, complete panel replacements, and sectioning.

• Punch Rivet Removal: The absolute best method for removing hardened, factory-installed self-piercing rivets (SPRs) and body-bound rivets without tearing the parent metal.

• High-Strength Steel (HSS) Teardown: Essential for disassembling modern vehicle architectures where drilling out ultra-hardened fasteners is either impossible, highly time-consuming, or strictly prohibited by the manufacturer.

Common Questions (FAQs)

Q: How does this machine actually remove rivets?
A: The BSP 03 itself does not pull the rivet. It uses drawn arc technology to instantly weld a stainless steel draw pin onto the head of the existing factory rivet. The technician then uses a separate mechanical extraction tool (like a puller) to grip the welded pin and pull the rivet cleanly out of the panel.

Q: Does it require a specialized power supply?
A: Yes. Because it is a heavy-duty industrial welder, the BSP 03 requires a dedicated 3-phase, 400V electrical connection. It is not designed to run on standard 110V or 220V single-phase outlets found in residential garages.

Q: Can I use this welder for standard dent pulling on exterior panels?
A: While its primary purpose in this OEM configuration is welding 5mm and 6mm pins for rivet extraction, Wieländer+Schill offers adapter sets (sold separately) that can expand the BSP 03's capabilities to include standard auto body dent pulling studs.

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