SKU: 36023271532

Ronstan Series 55 Ratchet Mount Orbit Block - Single Cleat Swivel - Auto

Sale price$154.85 Regular price$172.06
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Ships within 48 hours · Estimated delivery Aug 17 - Aug 22

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Description

Ronstan Series 55 Ratchet Mount Orbit Block - Single Cleat Swivel - AutoSeries 55 Ratchet Mount Orbit Block Single Cleat Swivel Auto Features: Up to 20: 1 holding power Smooth easing of sheets High performance cleating Automatic Ratchet Block Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes*. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when

Series 55 Ratchet Mount Orbit Block - Single Cleat Swivel - Auto

Features:

  • Up to 20:1 holding power
  • Smooth easing of sheets
  • High performance cleating

Automatic Ratchet Block

Now you can enjoy the flexibility of setting up your ratchet blocks to suit yourself. Ronstan is the only company that offers a ratchet block with both auto and manual engagement modes*. In the auto mode of the ratchet mechanism engages when load is applied, but switches off when it's released. This lets the sheet run out smoothly and freely-great for rapid easing of the sheet and for gybing asymmetric spinnakers. In manual mode, the ratchet mechanism can be switched on or off as required. This is the preferred mainsheet set-up for may top sailors. Try the block in both modes and see which you prefer - you really can't go wrong.

* Selected Series 55 models.

 Awesome ratchet block holding power

Quite simply, Ronstan Ratchet Orbit Blocks™ have the highest holding power available. The sophisticated NC-machined sheave features Generation 2 of our patented sheave cross-hole geometry. Its holding power is up to 21:1, almost double that of our nearest competitor. The unique sheave design has 12 gripping faces which directly resist loaded line movement. Traditional designs have only 8 faces with an angled resistance to line movement. Our Generation 2 design has straight resistance faces which both distribute the load and minimize rope wear. These faces are offset from the radial line, to draw the rope down into the gripping area when under load. 

Materials:

  • Sheave: Anodized Aluminium
  • Ball Bearings: High compression strength carbon black Acetal
  • Frame/Cheeks: Toughened, glass fiber reinforced Nylon
  • Rope Link: UV stabilized, multi-strand impregnated SK75 Dyneema®
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 36023271532

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4.8 ★★★★★
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Amazon Customer
Lexington, US
★★★★★ 5
Good ink
Color: BCMY
I like this ink, it has never failed me. You do have to be careful when using it or it will make a mess. It is hard to remember which needle was used for the color, the second time they are used. Washing them out still leave a small amount of color but not so much that it will change the color.
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Reviewed in the United States on March 9, 2026
J
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JM TX
Chelsea, US
★★★★★ 5
Exelente
Color: BCMY
Excelente tinta para sublimación. Los colores salen vivos y muy bonitos en las impresiones. Las botellas son fáciles de rellenar y compatibles con mi Epson EcoTank. Hasta ahora la calidad me ha gustado mucho y las impresiones quedan nítidas y profesionales. Muy recomendada para comenzar en sublimación
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Reviewed in the United States on May 18, 2026
L
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Lupita Arroyo
Carnegie, US
★★★★★ 5
Tintan para sublimar
Color: BCMY
Es justo lo que buscaba.
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Reviewed in the United States on May 16, 2026
J
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jerry
Natrona Heights, US
★★★★★ 5
5 star 🌟 would recommend
Color: BCMY
Amazing love the colors would buy again
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Reviewed in the United States on March 21, 2026
K
Verified Purchase
Kellie S.
Natrona Heights, US
★★★★★ 4
Great color, not easy to refill
Color: BCMY
Love this ink, but I do wish that it was easier to fill. I have to use a syringe to refill my ink... I'm using an epson ET 16600.
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Reviewed in the United States on January 3, 2026

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