The chainaxe is a chain weapon built around a motorised, monomolecular-toothed blade, and it’s the blunt, savage cousin of the chainsword. It matters because it’s the signature weapon of Khorne Berzerkers and the World Eaters, and one of the few weapons that tells you what kind of fighter is holding it before they’ve swung.
What the chainaxe actually is
Take an axe head, run a loop of monomolecular chain teeth along the open edge, and drive it with a motor. That’s the whole idea. The teeth tear through flesh and armour with relative ease, and the long haft gives you leverage a chainsword just doesn’t have.
That leverage is the trade-off. You get a heavier strike per blow, but less control and precision. Where a chainsword can be wielded with a bit of finesse, the chainaxe is a simpler, more savage affair.
Single-edged and double-edged versions both exist. Each open edge carries its own chain loop, so a double-sided axe still works if one side gets fouled. They come in one-handed and two-handed patterns too. Teeth are recorded as being made from ceramite or adamantium, depending on the pattern.
Who carries one
Before the Horus Heresy, chainaxes were standard issue to Legiones Astartes assault squads during the Great Crusade. That use faded among the Astartes and the Astra Militarum afterwards, though assault-minded chapters like the Flesh Tearers, Carcharodons and Space Wolves still field them.
These days it’s far more common among renegades and traitors. It’s the favoured weapon of the Khorne Berzerkers, and it’s been tied to the World Eaters Legion for ten thousand years. As Berzerkers have appeared in other Legions, the chainaxe has spread across Chaos forces generally.
The Imperium hasn’t abandoned it entirely. The Orestes Mk IV and Mk XII assault chainaxes are Astra Militarum patterns, reportedly inspired by the huge chain weapons carried by Legio Tempestus titans. Ork chainaxes are a separate story again.
- Khornate chainaxe: heavier, more powerful, built to punch through heavy armour.
- Great chainaxe: two-handed, used by Jakhal cultists.
- Castir-pattern chain greataxe: enormous double-sided head with two independent chain assemblies, swung in wide arcs. Few can lift it, let alone survive a hit.
- Excoriator chainaxe: used by the Rampagers of the World Eaters.
- Headsman’s axe: a Night Lords weapon.
Why it matters
The chainaxe is a statement of intent. It’s favoured by people who’d rather attack than defend, and who like the terror the thing causes as much as the damage.
In game and lore terms, it’s the clearest visual shorthand for Khorne worship outside the daemons themselves. If you see one, you’re probably looking at a Berzerker, a World Eater, or someone who’s about to become a problem.
Key facts
- The chainaxe is a chain weapon: an axe head with motorised monomolecular teeth running along the open edge.
- The long haft gives heavier strikes but less control than a chainsword.
- Double-edged versions have a separate chain loop per edge, so one side can foul without killing the weapon.
- It was common in Legiones Astartes assault squads during the Great Crusade, then fell out of favour with the Imperium.
- It’s now the signature weapon of Khorne Berzerkers and is closely tied to the World Eaters Legion.
- Notable patterns include the Khornate chainaxe, the Castir-pattern chain greataxe, the Orestes Mk IV and Mk XII, and the Night Lords’ Headsman’s axe.
FAQ
Is a chainaxe better than a chainsword?
It hits harder thanks to the longer haft and heavier head, but you lose precision and control. It’s a trade, not an upgrade.
Who uses chainaxes in Warhammer 40k?
Mostly Khorne Berzerkers, the World Eaters, and other Chaos forces. Some assault-focused Space Marine chapters and Astra Militarum regiments still use them too.
What are chainaxe teeth made of?
Sources list both ceramite and adamantium depending on the pattern, so it varies by weapon.