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Stud Welders

Arc Stud Welders
Inverter Arc Stud Welders
Capacitor Discharge (CD) Stud Welders
Production Welders / Automated Stud Welding
Stud Welders for Rent

Click on a stud welder for features and specifications.

Sunbelt Stud Welding ships throughout the United States and internationally.

View short informational videos on Arc and CD Stud Welding.

Arc Stud Welders

Arc Stud Welder Selection Guide

ARC-110

ARC-110
Shielding Gas Version

ARC-800

Visar 1200

ARC-656

ARC-800

ARC-1200

ARC-1850

ARC-3000

Inverter Arc Stud Welders

IT 1002

IT 2002

IT 90

Capacitor Discharge (CD) Stud Welders

CD Stud Welder Selection Guide

CD 212

CD 212P

CD 312

CD 512

CD Table Top

CDi-502

Capacitor Discharge (CD) Stud Welder - CD-1502

CDi-1502

Capacitor Discharge (CD) Stud Welder - CD-3101

CDi-2302

Capacitor Discharge (CD) Stud Welder - CD-3102

CDi-3102

HBS Pegasar 500 accu - Battery Powered

Capacitor Discharge (CD) Stud Welder - Battery Powered - Pegasar 500 ACCU INSULATION

HBS Pegasar 500 accu Insulation - Battery Powered

Production Stud Welders & Automated CNC Stud Welding Machine

CNC stud welders automate stud placement using programmable multi-axis motion, precision positioning, and intelligent welding controls. Designed for high-volume manufacturing, these CNC stud welding machines deliver repeatable weld quality, consistent positioning, and efficient production for ARC and Capacitor Discharge stud welding applications. 713-939-8903

Sunbelt Stud Welding supplies production stud welders, CNC stud welding machines, and automated stud welding components for manufacturers requiring fast, repeatable stud placement. Our systems support Capacitor Discharge (CD), Drawn Arc, and Short Cycle ARC stud welding for high-volume production environments. Whether you need a compact production workstation or a fully programmable multi-head CNC welding system, our equipment delivers precise positioning, consistent weld quality, and reliable industrial performance.

CNC Stud Welding Equipment

ARC-800 AT

Capacitor Discharge (CD) Stud Welder - CD-1502 AT

CDi-1502 AT

CDMi-2402

CDMi-3202

IT 1002 AT

IT 90 AT

IPC 90

Stand-alone control unit for integrating stud welding into production lines.

System integrators for integration into production lines
Controls up to 5 welding heads
Stud welding process self-sufficiently controlled by HBS components
Parameter monitoring for weld quality
M3 to M8, dia. 3 to 8 mm (#4 to 5/16")

The IPC 90 is an automated stud welding system engineered for integration into production lines. It controls the stud welding process through HBS automation components for consistent, repeatable weld quality.

The IPC 90 supports studs from M3 to M8 (3–8 mm) or #4 to 5/16 in., making it suitable for high-volume production requiring small- to medium-diameter fasteners.

Yes. The IPC 90 is built for stud welding automation and can be integrated into production lines using PLC-controlled manufacturing cells and custom automation systems.

The IPC 90 can control up to five welding heads, allowing multiple welding stations or synchronized production processes within a single automated system.

The IPC 90 can be configured for ARC stud welding or capacitor discharge (CD) stud welding, depending on the welding application, stud size, and production requirements.

Parameter monitoring continuously verifies critical welding values throughout each weld cycle, helping maintain consistent weld quality and improve process traceability.

The IPC 90 is commonly used in automotive manufacturing, sheet metal fabrication, HVAC, electrical equipment, appliance production, and OEM manufacturing where repeatable stud welding is required.

Yes. The IPC 90 can be integrated into custom automation cells and configured to meet specific production layouts, welding sequences, and manufacturing requirements.

CPW Series

CPW Series - CNC Production Welder - Data Sheet Download PDF

Entry-level CNC stud welding machine with one welding head.

Entry-level CNC stud welding machine with 1 welding head
High speed with highest positioning accuracy by robust machine base frame
Working with different work piece heights on a working range of 23.6 in x 16.5 in x 4.7 in (600 mm x 420 mm x 120 mm)
M3 to M8 (dia. 10/12/12,7 mm only possible with modification)
#4 to 5/16" (dia. 3/8" to 1/2" only possible with modification)

The CPW Series is an entry-level CNC stud welding machine designed for automated production. It combines CNC positioning, automatic stud feeding, and programmable welding controls for repeatable stud placement.

The CPW Series provides ±0.05 mm positioning repeatability and approximately ±0.2 mm welded stud placement accuracy, making it suitable for precision production applications.

The CPW Series can weld up to 30 studs per minute depending on configuration, stud size, material, and application requirements.

The machine provides a CNC working range of 600 × 420 × 120 mm (23.6 × 16.5 × 4.7 inches) for processing components with different workpiece heights.

Yes. The CPW Series includes automatic stud feeding and supports up to three different stud lengths per welding head for efficient production workflows.

The CPW Series supports M3 to M8 studs (3–8 mm) or #4 to 5/16 inch studs as standard, with larger diameters available through modification.

CNC stud welding is commonly used for sheet metal fabrication, automotive components, HVAC equipment, electrical enclosures, appliances, and OEM manufacturing.

The CPW Series uses a high-performance IEC 61131-3 PLC controller with a 9-inch touchscreen interface for machine operation and parameter management.

Yes. The CPW Series automates stud positioning, feeding, and welding cycles to improve production speed, consistency, and repeatability.

Unlike manual systems, the CPW Series uses CNC-controlled positioning and automated feeding to achieve repeatable weld locations and consistent production quality.

MPW Series - MPW 1010 / 2010 CNC Multi Production Welders

MPW Series - CNC Production Welders 1010 and 2010 - Data Sheet Download PDF

High performance CNC stud welding machine (with up to 4 welding heads)
Highest speed possible with high positioning accuracy through rugged design
Very short set-up time (a.e. automatic calibration of Z-axes)
M3 to M8 (dia. 10/12/12,7 mm only possible with modification)
#4 to 5/16" (dia. 3/8" to 1/2" only possible with modification)

The MPW 1010/2010 is a high-performance CNC stud welding machine designed for automated production environments. It combines multi-axis positioning, automatic stud feeding, and multiple welding heads for fast and repeatable stud installation.

The MPW Series is designed for higher production demands with up to four welding heads, larger working areas, faster traverse speeds, and multi-stud-length feeding capability compared with entry-level CNC stud welding systems.

A multi-head CNC stud welder is ideal when production requires multiple stud patterns, higher output, reduced setup time, and repeatable welding across large or complex components.

The MPW Series provides ±0.05 mm positioning repeat accuracy with welded stud placement accuracy up to ±0.15 mm on steel, depending on material, fixture design, and application requirements.

The MPW Series supports Capacitor Discharge (CD) stud welding, Drawn Arc stud welding, and Short Cycle Drawn Arc welding for different materials, stud sizes, and production applications.

The MPW Series can achieve production rates of up to 40 studs per minute, depending on the welding unit, stud type, spacing, and programmed positioning sequence.

Yes. The MPW 2010 provides an extended working range of 1,250 × 2,250 mm, making it suitable for larger components requiring automated stud welding over a wider production area.

Yes. The MPW platform can be adapted for specialized manufacturing processes, including additional automation functions and application-specific production requirements.

PC-S Production Center Standard Manual

PC-S Production Center Standard Manual Stud Welder - Data Sheet Download PDF

All variations of stud welding
With manual or automatic stud feeding (30% faster)
Welding Range - #4 to 5/16", dia. #4 to 5/16", (M3 to M8, dia. 3 to 8 mm); dia. 3/8" to 1/2" (dia. 10 to 12.7 mm) only possible with modification
Stud Length - 0.31" to 1.57" (8 to 40 mm) other dimensions on request
Stud Welding Head - KAH 412, alternative: KAH 412 LA (mechanical length compensation - gap)
T-slot work plate - 19.69" x 14.76" (500 x 375 mm)

The PC-S is a manual production stud welding workstation designed for repeatable stud welding applications. It combines a stable work platform, adjustable welding head positioning, and optional automatic stud feeding for improved production efficiency.

The PC-S operates as a manual stud welding system with an optional automatic stud feeder. The automated feeding option improves workflow speed by reducing manual stud loading during production.

The PC-S supports M3 to M8 (3–8 mm) studs or #4 to 5/16 inch studs as standard. Larger stud diameters may be possible with application-specific modifications.

Yes. The PC-S is designed for low- to medium-volume production where manufacturers need consistent stud placement, improved operator efficiency, and a dedicated welding workstation.

The PC-S can be configured for multiple stud welding processes, including ARC stud welding and Capacitor Discharge (CD) stud welding, depending on the selected welding unit.

Yes. The PC-S supports customization options including automatic stud feeding, workpiece fixtures, pneumatic clamping, machine covers, and custom handling solutions for specific production requirements.

Stud Welding Heads for Automated Stud Welding

KAH 412 - Automatic Stud Welding Head with Digital Display

KAH 412 - Data Sheet Download PDF

Especially suitable for thin metal sheets from 0.5 mm
Digital display (1/100 mm) for the position of the welding piston using integrated measuring system
Direct reading for the adjusted plunge and lift dimension
Pushbutton detent system to facilitate changing the feeding tube
Electronically controlled

Yes. The KAH 412 is an automatic stud welding head designed for CD and ARC stud welding with automatic stud feeding. It provides precise lift and plunge adjustment with digital piston position monitoring for consistent production welding.

The KAH 412 supports Capacitor Discharge (CD) stud welding, Drawn Arc stud welding, Short Cycle Drawn Arc welding, and Gap welding depending on the selected system configuration.

The KAH 412 supports stud welding on mild steel, stainless steel, aluminum, and brass. Material selection depends on the welding process, stud type, and application requirements.

Yes. The KAH 412 is designed for thin metal sheets from 0.5 mm thickness, making it suitable for applications requiring controlled welding parameters and reduced risk of sheet deformation.

The integrated digital display provides piston position measurement in 0.01 mm increments, allowing precise adjustment of lift and plunge settings for repeatable stud welding results.

The KAH 412 supports studs from M3 to M8 (3–8 mm) or #4 to 5/16 inch as standard. Larger diameters up to 10–12.7 mm may be possible with modifications.

Yes. The KAH 412 is designed for automated stud welding systems with automatic stud feeding and can be integrated into CNC welders, robotic welding cells, and production automation equipment.

KAH 412 LA - Automatic Stud Welding Head with Length Compensation

KAH 412 LA - Data Sheet Download PDF

Especially suitable for thin metal sheets from 0.5 mm
Automatic compensation of length tolerance of welding elements through integrated length adjustment
Manual or fully automatic stud feed possible (welding element is automatically pushed through the feed tube in the chuck)
Welding on painted sheets possible (clean, smooth and flat surfaces and grounding required)
Individual adjustment options for optimum welding results

The KAH 412 LA is an automatic stud welding head for ARC and CD stud welding with integrated length compensation. It supports automatic stud feeding and delivers repeatable weld quality in CNC, robotic, and automated production systems.

The KAH 412 LA automatically compensates for stud length and workpiece height variations, maintaining consistent lift and plunge settings while reducing manual adjustments during production.

Yes. The KAH 412 LA is engineered for welding thin sheet metal from 0.5 mm and provides precise control for applications where dimensional accuracy and minimal distortion are important.

Yes. The KAH 412 LA can weld on painted sheet metal when the surface is clean, smooth, properly grounded, and compatible with the selected stud welding process.

Yes. The KAH 412 LA supports both manual and fully automatic stud feeding, allowing seamless integration into automated stud welding and CNC production systems.

The KAH 412 LA includes automatic length compensation for stud and workpiece tolerances, while the KAH 412 features digital lift and plunge adjustment without integrated length compensation.

VBZ-3 Fully Automatic Weld Stud Feeder

Fully Automatic Stud Feeder for stud welding elements with a flange

VBZ-3 Fully Automatic Weld Stud Feeder - Data Sheet Download PDF

Feeding unit VBZ-3 for quick, fully automatic feeding for welding elements with flange according to current standards
Fully automatically feeding of welding elements from dia. 3 to dia. 8 mm (with flange); (other dia. on request)
Length from 8 to 50 mm (no rebuilding)
Feed Speed - Up to 30 studs/min (depending on welding element and feeding tube)
Air Pressure Connection - 6 bar/800 liter/min
Special feeding units on request

The VBZ-3 fully automatic weld stud feeder feeds up to 30 studs per minute, depending on the welding element size and feeding tube. Actual cycle time also depends on the welding machine and head paired with it.

The VBZ-3 feeds flanged studs from dia. 3 mm to dia. 8 mm (#4 to 5/16"), in lengths from 8 mm to 50 mm, without rebuilding the feeder for different sizes in that range. Other diameters are available on request.

Yes. Sunbelt pairs the VBZ-3 feeder and KAH 412 or KAH 412 LA automatic welding head with AT-series Arc and CD stud welders, so an existing manual platform can run automated feeding without a full machine replacement.

The VBZ-3 runs on 115V, 60Hz, 1.8A (other input voltages available) and requires a 6 bar / 800 liter/min air supply. Its exhaust air is pulse-controlled, so it doesn't draw air continuously between cycles.

The VBZ-3 is built specifically for flanged stud welding elements manufactured to current standards. It's not designed for non-flanged or specialty studs outside its rated dia. 3–8 mm range without custom feeding units.

Yes. The VBZ-3 is designed to pair with an automatic welding head, such as the KAH 412 or KAH 412 LA, which handles stud placement and firing in sync with the feeder's output.

Yes. Feed speed and stud handling depend partly on the feeding tube used, and tubes can be matched to the specific stud diameter and length within the feeder's standard range.

What Is a CNC Welder?

A production stud welder/CNC welder is a CNC or automation-ready stud welding machine built to run a fixed weld cycle repeatedly with little operator adjustment. It combines a welding power source (Arc or CD), a positioning system (CNC axis or fixed bench head), a welding head, and an automatic stud feeder. The machine automatically positions the welding head, executes the programmed weld sequence, and repeats the process with high positional accuracy for production manufacturing. This setup covers stud welding automation for parts with a defined stud pattern, without the added cost of a multi-axis industrial robot.

Unlike an automated robotic welding system designed for flexible motion, CNC welding machines provide controlled linear-axis movement for repetitive welding patterns and accurate part layouts.

Material Compatibility

Carbon Steel

Mild Steel

Stainless Steel

Galvanized Steel

Aluminum

TECHNICAL SPECIFICATIONS
Note	Specifications vary by machine configuration and production requirements.
Welding Process	Drawn Arc, CD, Short Cycle ARC
Positioning System	CNC Servo-Controlled X-Y-Z Axes
Stud Diameter	M3 to M8+(application dependent) M10-M12 with modification (⅜” to ½” with modification)
Stud Length	0.31" to 1.57" (8 to 40 mm)
Motion Accuracy	CNC programmable positioning
Repeatability	Determined by machine configuration
Programming	CNC Controller, PLC, HMI
Communication	Standalone RS232
Operation	Standalone or integrated production line
Monitoring	Digital weld parameter verification

HOW A CNC STUD WELDER RUNS A CYCLE
Load the part in a fixture (jig) or on the CNC table. Position the head on programmed coordinates (CNC models) or a fixed bench location (PC-S). Feed the stud through the automatic feeder (VBZ-3 or other integrated feed system). Weld using the programmed Arc or CD parameters. Advance to the next weld point or part.

INDUSTRIAL APPLICATIONS
Industry	Applications
Sheet Metal Fabrication	Panels, brackets, electrical enclosures
Automotive	Chassis, battery trays, structural components
HVAC Manufacturing	Equipment panels, insulation pins
Electrical Equipment	Cabinets, switchgear, grounding studs
Structural Fabrication	Anchor studs and production assemblies
OEM Manufacturing	Precision repetitive stud welding
Appliance Manufacturing	Panel assemblies, enclosures, mounting studs for washers, dryers, and ranges
Defense	Military-grade weld studs, armored vehicle panels, shipboard fabrication
Aerospace	Airframe brackets, lightweight panel fasteners, structural stud assemblies
Rail	Car body panels, floor studs, grounding and cable-hanger applications
Heavy Equipment	Machinery frames, fabricated housings, structural brackets
Energy	Wind tower internals, solar racking, switchgear and enclosure studs
Food Processing Equipment	Stainless steel panels, sanitary enclosures, corrosion-resistant stud fasteners

Frequently Asked Questions

A CNC stud welder (CPW, MPW series) moves the head on programmed axes. An Automatic-series machine (CDMI, IT) is a manual-platform stud welder with an automation function added, typically paired with a fixed welding head and stud feeder.

Most systems support Drawn Arc, Capacitor Discharge (CD), and Short Cycle ARC stud welding, depending on the machine configuration.

The IPC 90 controls up to 5 welding heads. The MPW series runs up to 4 heads on one CNC platform. The CPW series and PC-S run a single head.

No, unless they have the automatic functions.

Most production and automation-ready models run M3 to M8 (#4 to 5/16"), with M10 - M12 (dia. 10-12.7 mm) (⅜” to ½”) available on modified components. Check the individual data sheet for exact ranges.

Yes. Sunbelt Stud Welding manufactures and distributes stud welding equipment, including production and automated CNC welders, from Houston, Texas, and ships nationwide and internationally.

A CNC stud welder holds positional accuracy within ±0.1–0.3mm, with programmable current, plunge, and arc time controlling weld quality. This precision on a CNC welding machine ensures consistent stud placement across every part.

CNC stud welding machines typically achieve 400–1,500 welds per hour, depending on stud size and part layout. CD cycles run 1–6 milliseconds of arc time, while drawn-arc runs 0.1–0.6 seconds per weld.

Yes. CNC welders weld stainless steel studs using CD or drawn-arc processes matched to material thickness (typically 1–4mm), with adjusted current and shielding to prevent discoloration and maintain corrosion resistance.

Yes. A CNC welding machine connects via PLC/I-O signals and standard protocols (Ethernet/IP, Profinet) to sync with conveyors and fixtures, supporting continuous-flow production without manual part transfer between stations.

Usually, yes. CNC stud welding relies on part-specific fixtures to hold consistent X/Y/Z positioning across the full run. Fixture design is typically finalized during setup for each part family.

Yes. A CNC stud welding machine can store multiple weld schedules, adjusting current, lift, and plunge per diameter (commonly M3–M20), allowing diameter changes without full machine reprogramming or manual recalibration.

Benefits of CNC Stud Welding

CNC production welding reduces operator involvement while improving positioning accuracy and weld consistency. Automated stud feeding and programmable motion minimize production variation, reduce scrap, and increase throughput, making CNC stud welding ideal for high-volume manufacturing.

BENEFITS OF CNC STUD WELDING
High Positional Accuracy	Programmable multi-axis motion ensures precise stud placement on every cycle.
Repeatable Weld Quality	Controlled current, voltage, and timing eliminate operator-to-operator variation.
Reduced Setup Time	Stored programs and automatic Z-axis calibration speed up changeovers between jobs.
Automatic Stud Feeding	Pneumatic or mechanical feed systems deliver studs continuously without manual handling.
Lower Scrap Rates	Consistent parameters and digital monitoring prevent cold welds and misalignment rework.
Improved Process Control	PLC/HMI interfaces centralize diagnostics, parameter storage, and production settings.
Production Traceability	Digital weld parameter logging creates a documented quality record for every stud.
Continuous Operation	Designed for non-stop duty cycles in high-volume manufacturing environments.

Why Choose Sunbelt Stud Welding Houston?

Sunbelt Stud Welding Houston supplies high-tech CNC stud welding machines, automated welding systems, and custom automation solutions for manufacturers across the United States and internationally. Our systems are engineered to improve productivity, maintain weld consistency, and integrate with modern production environments.

WHY CHOOSE SUNBELT STUD WELDING HOUSTON?
Over 40 Years of Expertise	Trusted stud welding experience since 1980.
Technical Application Support	Guidance on choosing the right welder, gun, and weld schedule for your parts.
Installation Assistance	Hands-on setup support to get your system running correctly from day one.
Nationwide Service	Parts, repairs, and support available across the U.S., with overnight shipping options.

Why HBS?

Sunbelt partners with HBS Welding Systems, a premium German manufacturer of stud welding equipment, giving customers access to proven, internationally trusted production systems.

WHY HBS?
Experience	40+ years in stud and nut welding technology
Manufacturing Origin	Manufactured in Dachau, Germany
Global Reach	Exported to more than 70 countries worldwide
Product Range	Full product range — manual units, semi-automatic systems, and fully automated CNC machines
Recognition	Backed by industry patents and international engineering awards

Need a Custom CNC Welding Solution?

Tell us your requirements, and Sunbelt Stud Welding Houston, TX, will match you with the right CNC welding machine or custom solution for your application.

Call: 713-939-8903

More information on Production Welders

Video - CNC - Automated Bench Welder

Video - Stud Welding with an Automatic Stud Feeding System.

Sunbelt Product Catalog - download PDF or .zip file

Stud Welders

Stud Welding Guns

Automation

Weld Studs

Parts and Accessories

Shipbuilding / Offshore & Hangers

Insulation Installation

Stud Welder Rentals

Used Equipment for Sale

Stud Welders

Arc Stud Welders

Inverter Arc Stud Welders

Capacitor Discharge (CD) Stud Welders

Production Stud Welders & Automated CNC Stud Welding Machine