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FX 3-A Stud Fusion machine

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Technical Data
Documents
Features & Applications
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Compact and easily portable power supply base unit for fusion welding F-BT threaded studs to steel

  • Application: Fastening to steel
  • Battery voltage compatibility: FX 3-A
  • Certificates: CE

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Technical Data

Application
Fastening to steel
Battery voltage compatibility
FX 3-A
Certificates
CE
Charger type
C53
Operating Temperature Range
5° C - 40° C
Power (max.)
5.3 kW
Power regulation
Yes
Power source type
Battery platform
Rated voltage
52.8 V
Storage temperature range
-20 - 50 °C
Tool body weight
12.8 kg
Weight
12.8 kg
Width
434 mm

Documents

Technical information
Certificate
Material safety datasheet
pdf Cordless Stud Fusion (CSF) Technical Manual 09/2025, English [ 6.2 MB ]
pdf Cordless Stud Fusion (CSF) Technical Manual 05/2023, Revision 2 02/2025, English [ 5.8 MB ]
pdf Cordless Stud Fusion (CSF): F-BT Visual Examination Catalogue - OTR/5724148/03, 2025-05-02, including grinding, English [ 1.3 MB ]
pdf Cordless Stud Fusion (CSF): F-BT Visual Examination Catalogue - OTR 5724148/02, 2022-11-14 , English, Arabic, French, German, Indonesian, Italian, Korean, Spanish, Thai, Turkish, Vietnamese [ 3.6 MB ]
pdf WPS F-BT-MR (EU-2) Version 01, 07/2025, English [ 318.4 KB ]

Features & Applications

Features

  • Hilti Stud Fusion is a revolutionary welding method which helps you avoid the high costs, specialist operators, inconsistency and rework associated with traditional welding
  • Save time and labor – Stud Fusion is faster, safer and can be performed by non-specialist, trained operators. Eliminate the trial-and-error of traditional welding: simply select the type of threaded stud you’re working with, then this unit adjusts itself to the recommended settings for all working conditions
  • Safer jobsites and yards – this cordless welding system works entirely without heavy gas cylinders, power cords, angle grinders, fumes or light radiation
  • Get what you spec – the smart features of Hilti Stud Fusion make repeatable and more consistent fastenings to steel easier to achieve, even under tough jobsite conditions
  • Simplify and standardize fastening design – engineering support is available via the PROFIS Modular Support Engineering software suite, or by phone, in person or on the jobsite with Hilti Design and Engineering Support

Applications

  • Mobile welding fusion unit, containing a gas can and rechargeable battery, to power the Hilti Stud Fusion hand tool
  • Fastening to steel in polluted/corrosive environments (up to C5) for higher tensile loads or thinner base materials, and preserving the base material integrity
  • Steel fastening in wind, oil and gas offshore installations – cable tray/ladder supports, non-critical pipe supports, multi-disciplinary supports and other equipment fastenings
  • Steel fastening in oil and gas onshore installations – cable tray/ladder supports, non-critical pipe supports, multi-disciplinary supports and other equipment fastenings
  • Shipbuilding – block alignment, fastening false ceilings, raised floors, inspection grids and manholes, water spray separators; fastening of internal and external furniture and outfitting (lamps, switches, junction boxes etc.); support for electric/piping/ventilation services

For approval or certificate information, please see individual items.

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