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  • Welding Rectifier 400
Welding Rectifier 400

Welding Rectifier 400

CWR-400D
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Overview

Welding Rectifier 400 (CWR-400D) for everyday heavy stick welding

The CRUXWELD Welding Rectifier 400 (CWR-400D) is a 400 amp welding rectifier for MMA (stick) welding on 415 V three-phase power. It gives 50–400 A of constant-current output with an 80 V open circuit voltage, and it is fan cooled.

The rectifier and transductor design gives a smooth, steady arc with little spatter. Current control is stepless through the front-panel knob or a remote pendant, and arc force can be adjusted for the electrode you are running. It handles all common electrodes, including 6010 and 7018.

Welding current
50–400 A
Open circuit voltage
80 V
Cooling
Fan cooled
Power supply
415 V, 3-phase

Common uses

Fabrication shops running stick welding all dayConstruction and erection sitesStructural steel and plate workMaintenance departments

Why it is a workshop staple

Stepless current
Electromagnetic transductor control for smooth adjustment across 50–400 A.
Arc force adjustment
Tune the arc for the electrode type you use.
Remote pendant option
Change current without walking back to the machine.
Built to last
Heavy-duty transformer and a rugged mechanical build for varied site conditions.

Frequently asked questions

Rectifier or inverter: which should I buy?

A transformer-rectifier like the CWR-400D is simple, rugged and tolerant of rough site conditions. An inverter such as our ARC 400 is more compact. Tell our technical team how and where you weld, and they will suggest the better fit.

What current range does this 400 amp welding rectifier cover?

50–400 A, constant current, with an 80 V open circuit voltage.

What supply does it need?

415 V three-phase (±15%), 50/60 Hz.

How do I get the price?

WhatsApp +91 88008 82983 with your delivery location for a quotation.

Related machines

Need help matching a model to your job?

Send your job details to our technical team on WhatsApp or book a video call. CRUXWELD is a GeM Registered OEM Manufacturer with 45+ years of welding expertise. Engineered, assembled and tested in India. Supported Worldwide.

Having a problem with this machine? Lamps, fault codes and the checks you can do yourself: Transformer and rectifier troubleshooting →
Weld or cut not right? ARC welding problems → · Order spares →

Accessories

  • Manufactured with most robust and rugged mechanical architecture specially suited for rugged management at different environmental conditions
  • Configuration of well designed rectifier and transductor unit gives smooth and steady arc with minimal spatter and precise weld
  • Output current regulation through electromagnetic transductor resulting stepless and smooth current control
  • Welder friendly operation – Vast range of current selection through the medium of conveniently regulator knob & arc force adjustment provided on the front panel or remote current control pendant.
  • Highly robust and reliable welding rectifier mainly appropriate for remote and open construction sites
  • Easy arc striking is possible with any type of electrodes because of High O.C.V. machine
  • Excellent welding output characteristics for all electrodes including 6010 & 7018
  • Heavy duty transformer design for trouble free operation over the years
  • Double thermal insulated winding hence no burning of coil

Description

SpecificationUnitCWR-400D
Input voltageVolt415±15%
PhaseNo3
FrequencyHz50/60
Input KVA @ 100% duty cycleKVA26
Input currentAmps45
Welding current rangeAmps50-400
Open current voltageVolt80
Welding current @60% duty cycleAmps400
Welding current @100% duty cycleAmps310
Protection classClassIP23
InsulationClassH
CoolingTypeFan cooled
Output characteristicTypeCC
Dimensions (LxWxH)mm840x705x905
Weight (approx)kg240

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Welding Rectifier 400

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