44mm aluminum mastbase block Harken

The 44mm aluminum mastbase block is an essential piece of equipment for optimising halyard routing at the foot of the mast on your sailboat. Its lightweight, low-profile design allows the blocks to be compactly grouped in a small area, ideal for efficient, ergonomic installation on a modern yacht mast.

Designed to offer maximum resistance to transverse loads, this block features a high-performance bearing system combining a PTFE composite bearing and side bearings. This technology reduces friction and ensures smooth, efficient operation, even under high tension. This halyard block has a working load of 340 kg and a breaking load of 680 kg.

The 44 mm sheave is made from hard-anodised aluminium, a material renowned for its strength and resistance to corrosion, ensuring extra durability in demanding marine conditions. The rounded cheeks have been specially designed to prevent premature halyard wear, ensuring better rig retention.

Compatible with the Nautitech 482, this block is an ideal choice for yachtsmen and sailors looking for a high-performance, robust and reliable piece of equipment for their halyard rigging.

Harken 44mm aluminum mastbase block technical specifications :

• Type : Fixed mast foot pulley
• Sheave diameter : 44 mm
• Sheave length : 73 mm
• Width : 22 mm
• Height : 57 mm
• Weight : 95 g
• Max. rope diameter : 10 mm
• Screws : 6 RH mm (2 fasteners)
• Maximum working load : 340 kg
• Breaking load : 680 kg
• Sheave material : Hard anodised aluminium
• Bearing system : PTFE composite bearing + high-strength side bearings
• Special feature : Rounded/flared jaws to reduce halyard wear
• Compatibility : Nautitech 482 and other sailboats requiring a high-performance halyard transmission
• Use : Ideal for manoeuvring at the foot of the mast, suitable for cruising and racing.