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SIP 25113 25KVA Pneumatic Column Spot Welder,  Input Supply - 400V, Single Phase
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Technical Specification
PRODUCT NUMBER 252882528725299SR1236030010
Warranty 2424
Dimensions 440x110x185mm
Duty Cycle 0.015
Length (mm) 100100
Voltage (V) 230230230230230
Weight (kg) 1201201132

Q 1. What thickness of steel can the SIP 25113 spot weld?

A. The 25113 is rated for Mild Steel 5+5mm (flat) / 20+20mm (bar). It is designed for automotive body panel repairs, general sheet metal fabrication, and light industrial production.

Q 2. Does the SIP 25113 require a 3-phase supply?

A. Yes. The 25113 requires a 3-phase 400V supply and must be hardwired by a qualified electrician. It is designed for professional workshop and industrial environments where 3-phase power is available.

Q 3. What is the duty cycle of the SIP 25113?

A. The 25113 has a duty cycle of 25KVA @ 50%. 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 electrodes does the SIP 25113 accept?

A. The 25113 accepts electrodes of Ø 20mm in diameter. Compatible rod types include rutile and basic electrodes for mild steel, and specialist stainless and cast iron rods where relevant.

Q 5. Is the SIP 25113 suitable for site or mobile use?

A. The 25113 is primarily designed for workshop use. Check the specification for weight and portability details.

Q 6. What metals can the SIP 25113 weld?

A. The 25113 welds mild steel and stainless steel. Use the appropriate electrode type for each base metal.

Q 7. Does the SIP 25113 have thermal overload protection?

A. Yes. The 25113 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 SIP 25113 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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