When engineers search for heavy‑load conveyor chains, they often come across M‑series sizes. Unlike ANSI or A/B‑series roller chains in inch pitch, these are metric‑designed according to ISO 1977 and DIN 8167 standards.
There are three widely‑used variants:
- M series: Standard solid‑pin construction, good for general heavy conveying.
- MT series: Also solid‑pin, optimized for higher breaking loads on longer conveyor runs.
- MC series: Hollow‑pin design, convenient for mounting cross‑rods or special attachments without fully disassembling the chain.
One important detail: The number after M (such as M40, M80, M112) indicates the minimum breaking load in kN, not pitch size. That is a frequent misunderstanding for new purchasers.
These chains are frequently seen in sugar mills, metallurgy plants and paper factories. At our factory, we notice many replacement orders come from old European‑built lines. If attachments or non‑standard pitches are required, drawings are always recommended before production.
