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Cea Convex Mobile 251 Multi Process Welder – 400v

SKU: 004785
  • Tackle diverse welding projects with a single machine
  • Achieve professional-grade results with effortless control
  • Boost productivity with quick program selection and consistent wire feed
  • Maximise portability for convenient on-site welding
  • Reduce running costs with energy-saving features
  • Maintain peace of mind with built-in diagnostics and security

£2,339.00 ex. VAT     £2,806.80 inc VAT

Worldwide Delivery
Rated excellent on Google
Over 50 years welding expertise
Free delivery over £85 inc. VAT

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Take command of your welds with the CEA Convex Mobile 251, the ultimate multiprocess welder for professional and DIY enthusiasts alike. This compact powerhouse packs a three-phase welding punch, delivering exceptional performance for MIG/MAG, MMA (stick), and TIG (DC) with Lift TIG ignition. Conquer a wide range of materials and projects, from intricate sheet metal repairs to robust steel fabrication, with the power and precision you demand.

The CEA Convex Mobile 251 boasts user-friendly features that elevate your welding experience. Synergic control puts you in command with pre-set programs for optimal welding parameters based on material, gas, and wire diameter. No more guesswork – simply select your program and weld with confidence. The intuitive “Smart Program” key grants instant access to your preferred settings, while the four-roll wire feeder ensures smooth, consistent wire delivery for flawless welds.

Built for portability and efficiency, the CEA Convex Mobile 251 is your ideal companion for on-site jobs, maintenance applications, auto body repairs, and light fabrication. The compact design allows for easy transport, while the energy-saving function optimizes power consumption by activating cooling systems only when necessary.

For added peace of mind, the CEA Convex Mobile 251 features an auto-diagnostic system for troubleshooting and password-protected access for partial or full equipment lock down.


  • Multiprocess welding capabilities (MIG/MAG, MMA, TIG (DC) with Lift TIG)
  • Synergic control with pre-set programs for optimal welding parameters
  • User-friendly “Smart Program” key for quick program selection
  • Four-roll wire feeder for smooth and consistent wire delivery
  • Compact and portable design for easy on-site use
  • Energy-saving function for efficient power consumption
  • Auto-diagnostic system for troubleshooting
  • Password-protected equipment access

What’s In The Box

  • Convex Mobile 251
  • 4 rolls for wire Ø 0.8 – 1.0mm



Additional information
Weight 21 kg
Dimensions 65 × 30 × 39 cm
Free Delivery

Free Delivery




400v 3


Click and Collect:
Free Click and Collect with no minimum spend from our warehouse on the Empress Park, Southampton with on-site parking. Once your order has been processed, we will advise you when it is ready for pickup.  Just want advice?  No problem.  Feel free to call in to speak to one of our friendly experts.

EWS Fleet Coverage Areas: 
Southampton | Eastleigh | Winchester | Alton | Farnham | Petersfield | Havant | Hayling Island | Waterlooville | Fareham | Portsmouth | Gosport | Chichester | Arun | Worthing | New Forest | Christchurch | Salisbury | Wiltshire | Test Valley | Basingstoke and Deane | West Berkshire | Reading | Hart | Waverley | East Hampshire | East Dorset | Hampshire | Bournemouth | Poole | Lymington | Ringwood | Verwood | East Preston | Goring-by-Sea | Lancing | Shoreham-by-Sea | Steyning | Bramber | Horsham | Adur

Nationwide Delivery (all items excluding gas cylinders):
Free UK mainland (England, Scotland and Wales) delivery on orders over £85 inc. VAT.
UK mainland delivery is £7.50 inc. VAT on orders under £85 inc. VAT.
UK islands and Northern Ireland shipping costs may vary.

UK Delivery for Gas Cylinders:
Shipping costs for gas cylinders are calculated at checkout once the delivery postcode is entered.

International Delivery:
Please contact us for an accurate delivery quote.

Three phase input 50/60 Hz V +15%
Input Power @ I2 Max kVA 10 8,5 11
Delayed Fuse (l eff) A 16 10 16
Power Factor / cos φ   0,74/0,99 0,69/0,99 0,77/0,99
Efficiency Degree   0,89
Open circuit voltage V 60 60 60
Current range A 10-250 5-250 10-250
Duty cycle at (40°C) A 100% 180 180 180
A 60% 200 200 200
A % 250(35%) 250(35%) 250(35%)
Wires Ø mm 0.6-1.2
Coil Ø mm 300
Standards   EN 60974-1 • EN 60974-5 • EN 60974-10
Protection Class IP 23S
Insulation Class   H
Dimensions  mm 650
 mm 300
 mm 388
Weight kg 21

Machine Servicing

We can repair all makes and model welding machines using genuine manufacturer parts.


Successfully calibrated welding equipment can maximise performance through high quality welds. A certified calibration by us will ensure that your welding machine runs to its best capabilities.

Cea Convex Mobile 201 Multi Process Welder - 230v Hero

Cea Convex Mobile 251 Multi Process Welder – 400v

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£2,339.00 ex. VAT     £2,806.80 inc VAT
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