BACK TO PRODUCT
OTC WELBEE W400 AC-MIG
The high-light for high-quality AC/MIG welding
PRODUCT SPECIFICATION
OTC DAIHEN®
Welbee Series
WB-W400 Digital Welding Machine
High-Performance Industrial Inverter Platform
Precision Welding Performance
The OTC Welbee WB-W400 is an industrial-grade digital inverter designed to deliver high-quality welding results with stable arc control. Engineered for durability and high-duty cycle applications, this machine provides a robust 30-400 A output range, making it a reliable workhorse for heavy-duty metal fabrication and manufacturing environments.
Core Technical Advantages
- • Advanced Inverter Tech: Ensures stable, low-spatter welding performance.
- • Heavy-Duty Cycle: 40% duty cycle at 400A for sustained operation.
- • Industrial Build: IP23 protection class for demanding shop floors.
- • Digital Control: High-precision output settings for consistent weld quality.
Technical Specifications
| Model | WB-W400 |
| Output Range | 30 – 400 A |
| Input Voltage | 400 V |
| Duty Cycle | 40% / 400 A |
| Mass | 86 kg |
Professional Insight: The WB-W400’s high 92V no-load voltage and wide output range allow for excellent arc striking and stability, which is critical when working on specialized industrial alloys.
Our Products
High quality industrial products for welding, robotic automation, and manufacturing solutions.
OTC INSULATOR FOR BTAW-400 PN U5626X00
The OTC U5626X00 is a genuine replacement insulator designed specifically for the OTC...
OTC NOZZLE FOR BTAW-400 PN:U5377G01
The OTC U5377G01 is a genuine replacement shielding nozzle designed specifically for...
OTC BT5000-30D (3.0M)
The OTC BT5000-30D is a heavy-duty, air-cooled CO2 / MAG / MIG welding torch from the...
OTC BT5000-60Z (6.0M)
The OTC BT5000-60Z is a heavy-duty, extended-reach air-cooled CO2/MAG/MIG welding tor...
OTC BT3510-60Z (6.0M)
The OTC BT5000-45Z is a heavy-duty, air-cooled CO2 / MAG / MIG welding torch from the...
OTC BT5000-45Z (4.5M)
The OTC BT5000-45Z is a heavy-duty, air-cooled CO2 / MAG / MIG welding torch from the...
OTC BT3510-30Z (3.0M)
The OTC BT3510-30Z is an advanced, air-cooled CO2 / MAG / MIG welding torch engineere...
OTC BT3514-30Z (3.0M)
The OTC BT3514-30Z is a high-performance, air-cooled CO2 / MAG / MIG welding torch fr...
OTC ACCUTIG 500P
AC/DC TIG welding machines with thyristor control, 7 welding modes, and up to 500A ou...
OTC DA-300P
Digital AC/DC TIG welder with pulse control, ideal for aluminum, stainless, and mild...
OTC A-70
Air plasma cutting machines with 70A current and up to 35mm cutting capacity, perfect...
OTC DCT-35
Digital air plasma cutter with robust performance, ideal for on-site metal cutting ta...
OTC DCT-60
Digital air plasma cutter with powerful 60A output, suitable for cutting thick steel...
OTC FD-VC4
4 kg payload collaborative welding cobot, 37 kg lightweight, ISO‑compliant safety, hi...
OTC FD-VC4L
cobot with 1,317 mm reach and ±0.02 mm accuracy, ideal for safe, precise, and flexibl...
OTC TOUCH SENSOR
touch sensors (FD‑WDS/WD‑H, FD‑QD) enable real‑time seam & deviation detection for ro...
OTC ARC SENSOR FD‑AR
performs real-time through-arc seam tracking, correcting weld path deviations on mid-...
OTC LASER SEARCH
detects weld joint position & gap pre-weld, boosting precision, speed, and integr...
OTC LASER TRACKING SENSOR FD‑QT / FD‑QTS
dynamically tracks weld seams, adjusting torch position with ±0.4 mm precision at spe...
OTC LASER TRACKING SENSOR FD‑QF
detects weld seam position & profile in 0.3 s with ±0.2 mm precision—stable even...
OTC DAIHEN 1-Axis positioner
OTC Daihen 1-Axis positioners (250 – 1,000 kg payload) add synchronized rotational mo...
OTC Positioner 1PB250
OTC DAIHEN 1PB250 is a 1-axis robot positioner for 250 kg loads. Fast, precise, and f...
OTC Positioner 1PB500
The OTC 1PB500 is a robot-compatible 1-axis positioner for 500 kg loads. Precise, pow...
OTC Positioner 1PB1000
The OTC 1PB1000 is a heavy-duty 1-axis positioner built for 1,000 kg loads. Perfect f...
OTC Positioner 2PF300
Boost your welding precision with the OTC 2PF300 dual-axis positioner. Compact, relia...
OTC Positioner 2PF500
OTC 2PF500 dual-axis positioner handles up to 500 kg, delivering stable and precise w...
OTC Positioner 2PF1000
OTC 2PF1000 2-axis positioner supports up to 1,000 kg for heavy-duty robotic welding....
OTC Slider 1SB
OTC DAIHEN 1SB is a belt-driven linear slider for light-duty robotic welding. Compact...
OTC Slider 1SR
OTC DAIHEN 1SR is a rack-and-pinion linear slider with up to 500 kg payload and 10 m...
OTC Slider 1SR-P
OTC DAIHEN 1SR-P is a high-precision linear slider with 1,000 kg capacity and ±0.05 m...
OTC WELBEE P402L
MIG/MAG inverter welder 30–400 A, DC/DC pulse & CBT‑EX low‑spatter mode, 400 V in...
OTC FD-V80
is the perfect solution for businesses looking to enhance productivity, lower operati...
OTC FD-V6LS
7-axis long-reach robot, 6 kg payload, 2 006 mm reach, ±0.08 mm repeatability—ideal f...
OTC FD-V25 (S2)
Thanks to its increased payload, this mid-range handling robot is suitable for a wide...
OTC CPTX-I 500-2W MAG
500 A MAG/MIG synergic inverter welder, water‑cooled with trolley, 100% duty cycle—bu...
OTC TIG TORCH
Simple and excellent Durable structure ... m Excellent operability as it is lightweig...
OTC Contact Tip | A-Tip (40L, 45L)
Standard Tip for CO2/MAG welding (normally-installed tip for Blue Torch Ⅱ)
OTC Contact Tip | MAG-Tip (40L, 45L)
MAG-tip has a further larger mass and largely-enhanced thermal capacity compared to T...