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Sealey SR123 Spot Welder with Digital Timer
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Welding Spare Inside Lens for 38392 and 38271- 42941, Draper
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Draper 52336 Leather Welders Gauntlets
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Technical Specification
PRODUCT NUMBER 252882528725298603001025299MIGHTYMIG170MINIMW120i25113
Input Supply 230230230230400
Warranty 242424
Input current 2516161650
Electrode Size (max) 20
Electrode Size (min) 20

Q 1. What thickness of steel can the Sealey SR123 spot weld?

A. The SR123 is rated for 2 + 2mm. Maximum welding current is 6300A. It is designed for automotive body panel repairs, general sheet metal fabrication, and light industrial production.

Q 2. What power supply does the Sealey SR123 require?

A. The SR123 requires a 230V supply. If you are unsure whether your supply is adequate, consult a qualified electrician before installation.

Q 3. What is the duty cycle of the Sealey SR123?

A. The SR123 has a duty cycle of 0.015. Duty cycle is measured over a 10-minute period — a 60% duty cycle means 6 minutes of continuous welding followed by a 4-minute cool-down. Operating at lower amperages increases available run time.

Q 4. What accessories are included with the Sealey SR123?

A. The SR123 is supplied with 120mm welding arms. Additional consumables are available separately through PartsForMachines.com.

Q 5. How heavy is the Sealey SR123?

A. The SR123 weighs 11kg and includes a carry handle for transport between locations. It can be moved by a single person and is suited to workshop use.

Q 6. What materials can the Sealey SR123 weld?

A. The SR123 is primarily suited to mild steel.

Q 7. Does the Sealey SR123 have thermal overload protection?

A. Yes. The SR123 is fitted with automatic thermal overload protection that cuts output if the machine exceeds safe operating temperature. It will restart automatically once it has cooled. Operating within the rated duty cycle minimises the frequency of thermal interruptions.

Q 8. Can the spot welder be used on galvanised steel?

A. Spot welding galvanised steel is possible but produces zinc fumes — adequate ventilation or fume extraction is essential. Zinc coatings also accelerate electrode wear, so check electrode condition regularly when welding zinc-coated materials.

Q 9. Can the Sealey SR123 weld galvanised steel?

A. Yes, but with precautions. Zinc coating produces fumes during spot welding — adequate ventilation or fume extraction is essential. Zinc also accelerates electrode tip wear, so inspect tips more frequently when welding galvanised material. Test on scrap of the same gauge first to confirm the weld schedule.

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