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Ronstan Series 40 blocks re-launch

Ronstan Series 40 Blocks

  • The perfect balance of strength, performance, and reliability
  • Class-leading dynamic and static load ratings
  • The highest available in this size of performance blocks
  • Extremely versatile
  • A multitude of possible systems right up to a 12:1 purchase mainsheet system


Featuring class leading strength, accommodating rope diameters up to 10mm, and available in 23
individual configurations, Ronstan’s Series 40 Orbit Blocks™ are the most capable blocks of their size.
Impressive load ratings ranging from 400 – 1000kg (HHL versions) create opportunities for more
applications which may have previously required the use of a larger block. Ronstan’s two stage
bearing system ensures high efficiency across the full load range in both dynamic and static load
applications.


Highlights include the RF48109 and RF48109HL lashing blocks, which feature rotating cheeks for
optional snatch block functionality. Multiple sheave packages up to quad and quin blocks allow for
the creation of 12:1 purchase mainsheet systems for performance multihulls like F18’s and Nacra
17’s.

Unmatched Capability


 Ronstan’s Series 40 Orbit Blocks™ feature class leading load ratings and can accommodate lines up
to 10mm. The improved capability of the new 40mm range creates opportunities for more
applications on larger boats that may have previously required a larger block.

  • Available in 23 configurations including up to quad and quin sheave packages
  • Working Loads from 400kg – 1000kg
  • Unique 2-stage ball bearing system ensures impressive performance when loads increase

Versatility Through Strength


Ronstan’s new Series 40 Orbit Blocks™ are the strongest 40mm blocks available, featuring working
loads from 400kg-1000kg. Matched with a wider sheave profile able to accommodate up to 10mm
lines, Ronstan’s newest block range is suitable for many applications which previously required
larger 50mm or 55mm blocks. Available in 23 unique configurations for a diverse span of potential
applications.

  • Halyard, vang and backstay applications on boats to 9m (30 ft)
    Mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and
    sportsboats to 8m (26 ft)
    Control line applications on larger yachts
  • Snatch block functionality on RF48109 and RF48109HL
    Ratchet blocks feature replaceable ratchet sheaves for ease of maintenance
  • Halyard, vang and backstay applications on boats to 9m (30 ft)
  • Mainsheet systems and spinnaker sheets on dinghies, off-the-beach catamarans and
    sportsboats to 8m (26 ft)
  • Control line applications on larger yachts
  • Snatch block functionality on RF48109 and RF48109HL
  • Ratchet blocks feature replaceable ratchet sheaves for ease of maintenance

When shopping for new blocks, what factors are the most important to consider? For most,
it’s a combination of performance, strength, and price. Ronstan’s Series 40 Orbit Blocks™
are designed to provide the best possible performance when you need it most. As loads
increase, the 2-stage bearing system sets them apart from the competition by combining
the highest working loads available in a 40mm package with efficient, low friction
performance across the full load range.


With 23 blocks in the range, there’s no shortage of rigging possibilities. Choose from blocks
with classic swiveling shackle heads, lightweight snatch blocks with lashing attachment, or
doubles, triples, quad, and quin blocks. For specialty applications, stand-up blocks, cheek
blocks, and High Load blocks with stainless steel sheaves are also available. All with class
leading load capacity and the ability to accommodate up to a 10mm line diameter. There’s
never been a better time to upgrade.

View the range today to find out more, or contact a member of the sales team here.