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Bolzenschweißtechnik bsk + BTV GmbH
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FL 6,3 tab connector on a metal surface
STUD WELDING ELEMENTS – CAPACITOR DISCHARGE

Tab connectors
FL 6,3

Single earth tab connector
Tab connector with a 6.3 mm tab width and ignition tip for capacitor discharge stud welding. For manual and fully automatic welding processes.
6.3 mm tab width | 0.8 mm material thickness | Single version | Special versions on request
FL 6,3 TAB CONNECTOR

CONNECTOR TAB.
6.3 MM.
CAPACITOR DISCHARGE.

 
The FL 6,3 is a single earth tab connector. Its angled tab and welding base with ignition tip allow it to be joined to metal components using capacitor discharge welding. The version is selected to suit the material and welding task.

More about applications →

Welded FL 6,3 tab connector in a control cabinet
Type FL 6,3 – single earth tab connector
Welding process Capacitor discharge
Tab width b₁ 6.3 ±0.1 mm
Material thickness c 0.8 +0.05 mm
Height l 12 ±0.8 mm
materials Steel, stainless steel, brass and aluminium according to the dimensional sheet
FL 6,3 tab connector with angled tab and ignition tip before welding
PRODUCT DESCRIPTION

FL 6,3 tab connectors for capacitor discharge welding.

The FL 6,3 tab connector has a 6.3 mm wide tab, an angled foot and a welding base with an ignition tip.

The manufacturer’s dimensional sheet lists copper-plated steel 4.8, stainless steel A2-50, brass CuZn37 and aluminium AlMg3. Other materials are possible by agreement.

The ignition tip melts during welding. The existing welding base and the geometry of the tab connector remain intact.

View dimensions and materials →

DIMENSIONS

FL 6,3 tab connectors
Dimensions according to the manufacturer’s dimensional sheet

FL 6,3 dimensions · manufacturer’s dimensional sheet
Dimension Value in mm
c +0.05 0,8
l ±0.8 12
l₁ ±0.2 8
d ±0.1 1,5
b ±0.2 8
b₁ ±0.1 6,3
g ±0.8 10

Approximate weight: 0.93 kg per 1,000 steel pieces (St. 37), calculated using 7.85 kg/dm³.

Material selection and order codes
Material Designation according to the dimensional sheet Order code
Steel 4.8 / St. 37, copper-plated 01-063-0010
Stainless steel A2-50 / 1.4301 02-063-0010
Brass CuZn37 / MS 63 03-063-0010
Aluminium AlMg3 04-063-0010

Order enquiry

Please specify type FL 6,3, material or order code, and quantity. Other materials and special versions are possible by agreement.

Dimensions and tolerances are taken from the manufacturer’s FL 6,3 dimensional sheet. The stated weight refers to 1,000 steel pieces (St. 37). Please have the required material and availability confirmed with your enquiry.

Download FL dimensional sheet (German) →

APPLICATIONS

Applications for
FL 6,3 tab connectors

FL 6,3 tab connectors are welded onto metal components using capacitor discharge welding. The following application areas remain relevant – including domestic appliances and commercial kitchen equipment within equipment manufacturing, and decorative applications within metal construction.
Control cabinet & enclosure manufacturing
01

Control cabinet & enclosure manufacturing

General sheet metal fabrication
02

General sheet metal fabrication

Electrical engineering & electronics
03

Electrical engineering & electronics

Equipment manufacturing
04

Equipment manufacturing

Facade & metal construction
05

Facade & metal construction

Medical & laboratory technology
06

Medical & laboratory technology

FL 6,3 tab connector after welding with a flat weld collar
PROCESSING

Stud welding
with capacitor discharge

Capacitor discharge stud welding releases the energy stored in a capacitor. The tab connector’s ignition tip melts; the welding base and workpiece surface are briefly melted and joined under pressure. A suitable holder maintains the orientation. The process and parameters are matched to the material and welding task.
 

More about the process →

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SUITABLE EQUIPMENT

Equipment for
FL 6,3 tab connectors

CDP-99M capacitor discharge stud welder

CDP-99M

Capacitor discharge unit for tip ignition

Learn more →

CONTACT-M stud welding gun for the contact method

CONTACT-M

Contact method for capacitor discharge welding

Technical documentation →

Automation – CNC system

Automation & CNC

For automated applications

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FAQ

Frequently asked questions
about FL 6,3 tab connectors

What does FL 6,3 mean?

FL 6,3 denotes the single earth tab connector with a 6.3 mm tab width. Further dimensions and tolerances are specified in the manufacturer’s dimensional sheet.

Which materials are available?

The manufacturer’s dimensional sheet lists copper-plated steel 4.8, stainless steel A2-50, brass CuZn37 and aluminium AlMg3. Other materials are possible by agreement.

What is the function of the ignition tip?

The ignition tip on the welding base initiates the welding process and melts during it. The angled geometry and welding base remain intact.

What changes during welding?

The ignition tip melts and the welding base is joined to the workpiece. The original drawing shows the states before and after welding. The FL dimensional sheet does not specify a general reduction in length during welding.

What should be considered when selecting the connector?

The connector, material, base material, installation space and welding task must be compatible. Suitability for the specific electrical and mechanical application must be checked against its requirements.

Are ceramic ferrules required?

FL 6,3 is processed using capacitor discharge welding. RF ceramic ferrules are not used with this process.

Which equipment is suitable for FL 6,3?

The manufacturer’s page lists CONTACT-M, CDP-99M and the RAPIDOR QF automatic welding head as examples. A suitable holder, process and parameters are selected for the component and material.

Are special versions available?

Other materials and special versions are possible by agreement. Please send the required geometry, material, quantity and application requirements.

FL 6,3 tab connector for custom welding applications
SPECIAL DESIGNS

Tab connectors to
your requirements

In addition to the listed standard dimensions, further dimensions and materials are available on request. We review a suitable version for your application.

Enquire about a special design →