Why choose a BMM block:

Top quality – long lifetime

Blocks from BMM is recognized as top quality among people in the fishing world.   BMM have produced blocks to the commercial fishing fleet since 1972. Today BMM has export to more than 40 countries and BMM is market leader in blocks.

Galvanized blockhouse

• Hot dip galvanization provides the best protection against corrosion in the harsh and salty conditions at sea. (the blockhouse is dipped in a zink bath).

Quality bearings in sheave and top fitting        

• Spherical roller bearings in sheave – best bearing type for the application.
• Thrust bearing in top fitting – best bearing type for the application

Hardened sheave / stainless sheave

• BMM recommends hardened steel sheaves for steel wire ropes.

If the sheave material is to soft, then the rope will indent/mark the sheave and these indentations may produce sharp edges within the sheave which may damage the wire rope and the sheaves could experience excessive wear.

• BMM recommends stainless steel sheaves for fiber ropes (Dyneema ropes).

Stainless steel should be used to avoid rust on the surface which will abrade the fiberrope as sandpaper.

• The stainless steel sheaves can be replaced with hardened steel sheaves and visa versa in the blocks if the vessel decides to switch from type of rope.

High strength:

• The blocks have safety factor 5:1.
• The WLL on the top fitting is 2 times the WLL (2 x line pull)
• The blocks are supplied with 3.1 test certificate and tested in own test benches.
• RMRS certification available upon request

Test certificate with individual product- & certificate no

• BMM blocks are tested on own test facilities and can be supplied with BMM-test certificate. The blocks are stamped with individual product- & certificate numbers and also shows date of production. The individual number secures easy replacement of spareparts (sheaves, bearings etc..)

Easy access to spareparts

BMM always keep stock of spareparts.   The individual number secures easy replacement of spareparts (sheaves, bearings, etc.)

With grease nipples where needed  

• Greasing on regular basis is important

Various top fittings to suit all connections onboard.

• All blocks can be supplied with top fitting to suit all connection onboard.
  • Swivel oval eye
  • Swivel fork for shackle bow
  • Swivel eye for shackle pin
  • Swivel icedavit topfitting for hinge suspension
  • Custom made top fittings can be made to suit with existing hinge onboard a trawler

Hinge suspension provides better guidance:

• BMM can supply hinge suspension for blocksizes above sheave diameter of 370 mm.