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A. The SIP 05004 is designed for use with SIP 05783 and 05787 (and 6 more). Plasma nozzles are machine-specific — always confirm your plasma cutter model before ordering. Using an incorrect nozzle damages the torch body and produces poor cut quality.
A. The nozzle orifice size determines the plasma arc diameter and kerf width. The 05004 has a 1.7mm orifice. A worn nozzle with an enlarged orifice produces a wider, less precise cut. Replace when you notice increased kerf width or reduced cut quality.
A. Replace nozzles when the orifice shows visible enlargement or distortion, when cut edge squareness deteriorates, or when dross increases at correct speed settings. Replacing nozzle and electrode together as a set gives the best results — mismatched wear states cause arc instability.
A. Common causes: moisture in the air supply (use an inline dryer/filter), incorrect air pressure, excessive pierce height (use a piercing shield), cutting above the machine's rated capacity, and slow travel speed. Correct settings dramatically extend nozzle life.
A. Yes — best practice is to replace nozzle, electrode, and diffuser as a set. The three components wear together; leaving worn components alongside new ones limits the performance improvement and shortens the life of the new parts.
A. Consult your plasma cutter manual for the specified inlet pressure — typically 4.5–6 bar (65–90 PSI). Insufficient pressure causes rapid nozzle erosion and double-arcing. Excessive pressure reduces cut efficiency and blows out the plasma column.
A. Double-arcing (arc splitting between electrode and nozzle) is usually caused by a worn nozzle orifice, contaminated nozzle, incorrect standoff distance, or moisture in the air supply. Replace the nozzle and check air supply quality — do not continue cutting with a double-arcing machine as it damages the torch body rapidly.
A. Only use manufacturer-specified nozzles in your plasma cutter. Generic nozzles may have incorrect orifice geometry, different orifice diameter tolerances, or sub-standard copper alloy that wears faster. Using non-specified nozzles risks arc instability, poor cut quality, and accelerated torch body wear.
A. MIG tips and nozzles are torch-specific. Check your machine's torch type — common types include MB14, MB15, MB25, and MB36. The contact tip thread size must match your torch body. The tip bore size must match your wire diameter. Using the wrong tip or nozzle will cause poor wire feed and inconsistent welds.
A. Yes — the SIP 05004 is UK stocked for fast despatch. Check current availability at PartsForMachines.com.
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