Markussens Trawl Blocks

The BMM Trawl Blocks – Closed Series are heavy-duty rigging blocks designed for demanding marine, fishing and industrial applications. These blocks feature full side-plates (“closed”) construction, offering added strength and protection in adverse conditions. According to the spec listing, models such as K130, K170, K215, K230, K240, K300 and K400-2 offer working load limits (WLL) from 4 ton to 15 ton at a 5:1 safety ratio, with corresponding test loads up to 30 ton.

Features

• Full side-plate (closed) construction for enhanced strength and durability
• Wide range of sizes & load ratings (e.g., K130 up to K400-2) with WLL from ~4-15 ton (depending on model) at 5:1 factor
• Top fittings configurable - swivel eye, swivel fork, shackle eye, icedavit eye & more—making them adaptable to different rigging set-ups
• Options for upgrades such as flame-hardened sheave (“H” suffix) for higher wear resistance
• Durable design suited to marine and high-stress environments—ideal for fleets, training centres or serious rigs

Specifications

Download

Information Manual