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

R1 569,75

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.

SKU: WP-18 4M TIG Torch Auto pencil Head – LH Bullnose/ WP-18 8M TIG Torch Auto pencil Head – LH Bullnose Category: Welding equipment and accesories Tags: 4m TIG torch, 8m TIG torch, auto pencil head TIG torch, high amperage TIG torch, LH bullnose TIG torch, pencil TIG torch, slim TIG torch head, water-cooled TIG torch, WP-18 TIG torch

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.