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Orbital Service Portable Tungsten Grinder
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The Orbital Service Tungsten Grinder features an ultra-lightweight, compact design, making it ideal for grinding, cutting, and squaring TIG welding tungsten electrodes wherever the job takes you. Designed for fast, precise operation, it delivers consistent results both in the workshop and on site.

Key Features:

Preset grinding angles of 22.5° and 30°
Compatible with 1.0 mm, 1.6 mm, 2.4 mm, and 3.2 mm tungsten electrodes
Grinding, squaring, and cutting functions in one compact unit
High angular accuracy thanks to preset grinding angles for all electrode sizes
Ultra-lightweight design, weighing only 1 kg
Longitudinal grinding improves arc ignition, arc stability, and electrode service life
Designed for small-batch production and on-site applications
Precise cylindrical grinding for consistent electrode preparation
High grinding performance for shorter machining times
No setup time required, reducing overall workload and increasing productivity

Product Details

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Tungsten Sharpening FAQs

Straight answers to the questions people ask most when choosing and using equipment for sharpening TIG tungsten electrodes.

Why does the shape of the tungsten tip matter?

The tip shape controls how the arc behaves. A sharper point gives a narrower, more focused arc that suits thin material and low current, and is easy to start. A blunter tip, or one with a small flat on the end, handles higher current without the tip melting and gives a more stable arc with deeper penetration.

A poorly ground or irregular tip makes the arc wander, flicker or start badly. Grinding the tip properly and consistently is one of the easiest ways to improve TIG weld quality.

Why use a dedicated tungsten grinder instead of a bench grinder?

A dedicated grinder holds the tungsten at a fixed, repeatable angle, so every tip comes out the same, and it grinds with a wheel used only for tungsten. This avoids contaminating the tip with other metals, which would affect the arc. Many also catch the dust.

A general bench grinder is harder to control, the angle varies, and a wheel that has ground steel will pass particles onto the tungsten. If you do use a bench grinder, use a wheel kept only for tungsten.

What angle and shape should I grind?

It depends on your current, the material, the tungsten type and the machine. In general, a longer, sharper taper gives a narrower, more focused arc for thin work and low current, while a shorter, blunter taper tends to cope better with higher current and gives deeper penetration. For DC work a small flat at the tip is often used.

For AC welding, including aluminium, the tip is often blunter or lightly rounded, but this varies with the tungsten type. Follow the guidance from your machine and tungsten makers, then adjust by trial welds.

What is a wet grinding system and how does it differ from dry?

In a wet system, a liquid is used at the grinding wheel to keep the work cool and to trap the fine tungsten dust, so less dust is released into the air. Dry systems usually have an extraction or filter instead.

Some grinders supply a liquid for wet cutting and grinding. Follow the maker's instructions for the correct liquid and its disposal. Whichever system you use, treat the dust with care and keep to the maker's guidance.

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