SKU: 65149385932

Ronstan Series 55 Rt Orbit Block Single Swivel Head

Sale price$81.29 Regular price$90.32
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Description

Ronstan Series 55 Rt Orbit Block Single Swivel HeadSeries 55 Ratchet Orbit Block Single Swivel Head Auto & Manual 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

Series 55 Ratchet Orbit Block™ - Single - Swivel Head - Auto & Manual

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.


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 Sheave Cross-Hole Geometry. Its Holding Power Is Up To 21:1, Almost Double That Of Our Nearest Competitior. The Unique Sheave Design Has 12 Gripping Faces Which Directly Resist Loaded Line Movement. Traditional Designes 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 Minimise Rope Wear. These Faces Are Offset From The Radial Line, To Draw The Rope Down Into The Gripping Area When Under Load.

Features:
  • Up To 20:1 Holding Power
  • Smooth Easing Of Sheets
  • High Performance Cleating
  • Swivel Shackle Head For Unlimited Block Rotation.
  • Stainless Steel Shackle Head For Ultimate Durability And Compatibility With Harsh Fixing Points.
  • Automatic & Manual Ratchet Block


Applications:
  • Mainsheet Systems And Spinnaker Sheets On Dinghies, Sportsboats And Small Keel Boats To 8M(26')
  • Halyard, Vang And Backstay Applications On Boats To 8M(26')
  • Spinnaker Sheets On Sportsboats And Small Keel Boats (Lateral Lead Blocks)


Materials:
  • Sheave: Hard Anodised Aluminium
  • Ball Bearings: High Compression Strength Carbon Black Aceetal
  • Frame/Cheeks: Toughened, Glass Fiber Reinforced Nylon
  • Rope Link: Uv Stabilized, Multi-Strand Impregnated Sk75 Dyneema&Reg;
  • Head Fitting: Grade 316 Stainless Steel


Specifications:
Sheave Ø:55Mm(2')
Max. Rope Ø: 10Mm(1/2')
M.W.L.:250Kg(550Lbs)
B. L.:650Kg(1,430Lbs)
Weight:82G(2.9Oz)
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: 65149385932

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4.6 ★★★★★
Based on 8 reviews
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C
Verified Purchase
Chris White
Natrona Heights, US
★★★★★ 4
Good Tool
Size: One Size, Style: Bottle Opener
This thing is great at opening bottles, and it has a Klein handle. Perfect for the electrician in your life, even if that's yourself. I had to knock off a star because the handle is not quite as good as other Klein tools. The plastic is not as clear. The TIP-IDENT bottlecap marking is off-center and not fully printed. The bottle opener sticks out at a slight angle. This does not affect the performance, but it does detract from the novelty somewhat.
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Reviewed in the United States on March 10, 2023
A
Verified Purchase
Amanda L. Day
Natrona Heights, US
★★★★★ 5
expands work space effectively
Initially it was a bit challenging to set up as I was not fortunate enough to have assistance (the instructions tell you that you need two people for part of the installation process). I also had to play around with placement a bit as my available installation space was extremely limited and neither of the listed/'suggested mounting situations worked for me; however, with some head-scratching and debating with myself, I finally figured how to make it work how and where I needed it it, and all was good!! It functions well, and holds adequate weight, and looks really good with the light lacquer finish...the only thing I will say to a potential buyer is to make sure you have room to walk past it easily when its closed down because it still sticks out a few inches even when closed down...overall, very happy with this item and would purchase again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 13, 2014
M
Verified Purchase
mike litchfield
Cuba, US
★★★★★ 5
Works great
Is there a little expensive but they work great to add counter space. My wife liked it so much I bought a second one.
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Reviewed in the United States on June 11, 2026
P
Verified Purchase
Placeholder
Omaha, US
★★★★★ 4
Looks great.
Nice quality with sturdy hardware. Size could be a little larger.
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Reviewed in the United States on August 30, 2025
S
Verified Purchase
Stephanie Adams
Cuba, US
★★★★★ 5
Great addition to my sewing table!
I ordered two of these to give me a little more room on my sewing table. One for the backside and one for the left side. Worked out great! Very sturdy and not hard to install (followed directions). I just extended when I need room and fold when not in use. I would recommend these to anyone who just needs a little more table/room.
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Reviewed in the United States on May 12, 2020

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