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Tig Torches – WP-18 4M TIG Torch and WP-18 8M TIG Torch Auto pencil Head – LH Bullnose

Price range: R1 569,75 through R2 317,25 Incl. vat

Technical Specifications (Typical / Example Values)

Spec 4M Version 8M Version
Cooling Method Water‐Cooled Water‐Cooled
Cable / Hose Length 4 metres 8 metres
Current Rating (DC) ≈ 350 A ≈ 350 A
Current Rating (AC) ≈ 250 A ≈ 250 A
Tungsten Electrode Size Range 0.5 mm – 4.0 mm 0.5 mm – 4.0 mm
Duty Cycle High, often near 100% (depending on water cooling & setup) Similar
Rear Connections / Bullnose Thread LH Bullnose thread connectors; possible variants 35‑50 connector, UNF/LH etc. depending on supplier. huarui-cn.com+1

Applications & Uses

  • Industrial fabrication, heavy steel, aluminum, stainless where heat management is critical.

  • Robotic or automated welding where fast consumable changes are beneficial.

  • Long weld seams, plate welding, pressure vessel work.

  • Workshops or field rigs where longer hoses are needed; 8M model helps reduce moving equipment.


What’s Included / Optional Add‑Ons

  • Torch head with auto‑pencil LH bullnose tip / nozzle setup

  • Cooling water hoses, power cable of selected length (4M or 8M)

  • Standard consumables (collet, collet body, nozzle/cup, back cap) – check if included depending on supplier

  • Optional larger nozzle visuals or gas lens versions depending on bore size needed

  • Rear connector adapters (if needed); ensure matching LH bullnose or specified connector style


Maintenance & Compatibility Tips

  • Ensure your water cooling system (flow rate, temperature, hose diameters) matches torch requirements. Underflow or too warm coolant reduces performance.

  • Select proper tungsten size and nozzle diameter for current and bead size to maintain gas shielding and arc stability.

  • Check bullnose fittings regularly; left‑hand threads resist loosening but still require proper torque and sealing.

  • Keep ceramic cup and nozzle clean; spatter blocks gas flow and reduces shield.

  • For auto‑pencil heads: ensure spare pencil parts are stocked (nozzles, consumables) for quick swap and minimal downtime.

Description

WP‑18 Auto‑Pencil Head TIG Torches – 4M & 8M | Water‑Cooled LH Bullnose

The WP‑18 Auto‑Pencil Head TIG Torches are high‑performance, water‑cooled, left‑hand (“LH”) bullnose style torches featuring a “pencil‑head” or auto‑pencil design for fast change‑over of consumables and enhanced precision. Available in 4‑metre and 8‑metre cable/hose lengths to accommodate both bench, field, and automated setups. Ideal for welders or automation rigs that need reliable, high‑amp performance with quick consumable swaps.


Key Features

  • Auto‑Pencil Head
    Designed for quick change of cups / nozzles; slim profile bullnose tip allows easier access to tight joints or weld seams. Good for robotic or automated arms or setups where space is limited.

  • Water‑Cooled Construction
    Helps manage heat buildup, enabling higher continuous current without overheating. Essential for prolonged welds or heavy materials. Provides better durability over air‑cooled in demanding or continuous use.

  • LH Bullnose Connector
    Left‑hand threaded bullnose fittings for nozzle or hose connections. Secure fit, resistant to loosening under hydraulics/vibration. Ensure compatible bullnose threads for any hose or consumable you use.

  • Two Length Options

    • 4M version: lighter, more manageable for bench, manual TIG welding, small workstations.

    • 8M version: extended reach ideal for large assemblies, robotic cells, or larger machines where extra hose/cable length is needed without moving the power source.

  • High Current Capacity
    Rated for high amperage (typical WP‑18 specs are in the ~350 A DC, 250 A AC region, depending on cooling and nozzle sizes) with capacity to accept tungsten sizes from about 0.5 mm to 4.0 mm, enabling flexibility for light to heavy TIG work.

  • Consumables & Compatibility
    Comes with standard WP‑18 style consumables: collets, collet bodies, back caps, ceramic cups, etc. Multiple nozzle bore sizes (6 mm, 8 mm, 10 mm, etc.) which are available for matching the weld bead size and gas flow. Rear connector options include LH threaded or DIN style fittings in some variants.

Additional information

WP-18 4M TIG Torch Auto pencil Head - LH Bullnose/ WP-18 8M TIG Torch Auto pencil Head - LH Bullnose

WP-18 4M TIG Torch Auto pencil Head – LH Bullnose, WP-18 8M TIG Torch Auto pencil Head – LH Bullnose

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