Ronstan makes blocks (pulleys) for a wide range of marine and general applications. Innovative Ronstan blocks are found on boats of all sizing, ranging from racing dinghys to large cruising boats.
About Ronstan Core Blocks
Ronstan Core Blocks Series are a true
all round solution. A tuned 2-stage bearing system provides excellent
across the full
working load range with an integrated thrust bearing feature
and the resilience
to handle high dynamic or static loads. Acetal sheave, alloy
cheeks and stainless fixings complete the durable package. For
reliability and a long service life, these Ronstan blocks are the right
halyards and control line applications for cruising and racing.
About Ronstan Orbit Blocks
Ronstan Ball Bearing Orbit Blocks Series boast
the highest strength-to-weight ratio available. Less friction
provides you with ultimate performance. This is achieved through
all-composite reinforced polymer materials
and a Dyneema® rope link head. Their precision design allows
the optimum number of ball bearings in loaded areas and eliminates
them in inactive areas. Ineffective mass is reduced even further
through fibre-reinforced composites in the block head, cleat
arms and beckets. The incredible Series 20 Orbit Block is capable
of loads up to 250kg (550lb) while weighing a mere 9 grams. It's
so light that it needs to be lashed down!
About Ronstan All Purpose Blocks
Ronstan Series All purpose (AP) blocks
a great all around solution. Self-lubricating Acetal polymer
races perform equally well with dynamic loads and high static
For durability and a long service life, these Ronstan blocks are
a great choice for sheets, halyards and control line applications
for cruising and racing as well as general purposes.
About Ronstan Utility Blocks
Ronstan Utility Blocks feature stainless steel cheeks and Acetal
sheaves ensure a long service life with virtually no maintenance.
Hollow rivets in the
Ronstan utility block heads can be fitted with shackles, which can also be
add a becket for extra purchase.
About Ronstan Pivoting Lead Blocks
Ronstan Pivoting lead blocks come in several different versions and configurations. Ronstan Pivoting Low Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers. Maintains alignment with a variable line entry-angle. The line passes through the centre of the pivot support, remaining as close to the deck as possible.Ronstan 60-75 Series Pivoting Low Lead blocks are a low profile solution for leading halyards or other rig sail controls back to cleats or jammers.
About Ronstan Exit Boxes
Exit boxes are a specialy type of Ronstan block that allows lines to enter a mast, boom or hull. Ronstan exit boxes are avaiable in several sizes in both single and double sheave configurations.
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