Product Description
Gunnebo M & MF Master Links (Grade 100)
Gunnebo M and MF Master Links are heavy-duty, welded alloy steel links designed for use with Grade 100 chain slings and other lifting assemblies. The M series features a consistent round profile, while the MF series incorporates an engineered flat to accept certain compatible fittings (such as components from the GrabiQ lineup or Crosby S-1325 Omega Links). This versatility makes them a reliable choice for both standard chain sling assemblies and specialized rigging applications.
Key Features:
- Manufactured from quenched & tempered, fine grain alloy steel sourced from European mills.
- Individually proof-tested and certified to values shown in specifications.
- Meets or exceeds requirements of EN 1677-4, ASTM A952/A952M, AS 3775.2, and AS 3776:2015.
- Fatigue rated to at least 20,000 cycles at 1.5x WLL.
- 5:1 design factor (required for chain, wire, or synthetic rope applications).
- Traceable through unique Product Identification Codes (PIC), marking includes: grade, chain size, “SWE,” “Gunnebo,” and BG/DGUV ID (H32).
- Compatible with chain, wire rope, and synthetic rope assemblies.
Identification & Markings:
- M: Single-type master link (round profile).
- MF: Single-type master link with engineered flat.
- Other variants include MT (master link assembly), MFH (engineered flat for DIN style crane hooks), and MFX (enlarged with engineered flat).
- Markings include Gunnebo brand, country of origin (Sweden), and full traceability code.
Specifications:
- Working Load Limits (WLL) range from 4,408 lbs to 275,500 lbs depending on size.
- Proof loads from 11,016 lbs up to 689,299 lbs.
- Available in sizes from 7/32" chain up to 1-1/4" chain, with larger capacities available in heavy-duty M models.
- Engineered flat thickness designed for secure seating with compatible couplers and links.
Whether you choose the M series for traditional round links or the MF series with engineered flats for enhanced compatibility, Gunnebo master links deliver strength, consistency, and long service life in demanding lifting operations.