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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
For Your Every Summer RSVP, with Code: SUMMER15
Description
Ronstan Series 40 Rta Orbit Block Auto Single Swivel HeadSeries 40 Ratchet Orbit Block Single Auto Swivel Shackle Head Automatic Ratchet With Automatic Models, 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. Awesome Ratchet Block Holding Power Quite Simply, Ronstan Ratchet Orbit Blocks Have The Highest Holding Power Available. The Sophisticated Nc
Series 40 Ratchet Orbit Block - Single - Auto - Swivel Shackle HeadAutomatic Ratchet
With Automatic Models, 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.
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. The Series 40 Delivers Up To 14:1 Holding Power, Almost Double That Of Our Nearest Competititor.
The Unique Sheave Design Has 8 Gripping Faces Which Directly Resist Loaded Line Movement. Traditional Designs Have 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.
Simple And Secure Attachment
The Dyneema&Reg; Link Is Easily Fitted And Is Retained Securely By A Moulded Retainer Clip. The Flexible Link Can Be Left With One End Attached To The Block When Fitting - No More Lost Shackle Pins.
The System Is Compatible With Dyneema&Reg;/Spectra&Reg; Strops, Webbing And Carbon Connection Points - Much More So Than Steel Loop Tops Or Shackles.
Smooth Easing Of Sheets
With Auto Models The Sheet Runs Out Smoothly And Freely As Soon As The Ratchet Mechanism Disengages.
Low Profile Stand-Up Kit Allows 0 Or 90 Alignment
Stand-Up Kits Feature A Clatter-Free Rubber Boot. You Can Attach The Dyneema&Reg; Link So That The Block Is Aligned With The Stand-Up Base Or Across It. It'S A Neat Low-Profile Solution Which Allows Full Articulation.
Features:
- Up To 14:1 Holding Power - Highest Available!
- Smooth Easing Of Sheets
- Fully Automatic Load Sensing Ratchet Engagemen
- Swivel Shackle Head For Unlmited Block Rotation
- Stainless Steel Shackle Head For Ultimate Durability And Compatibility With Harsh Fixing Points
Applications:
- Dinghy Mainsheet Systems
- Mainsheet Fine Tune Systems On Sportsboats & Small Keel Boats
- Mainsheet Systems On Sportsboats Using Rf7 Mainsheet Swivel Cleat Unit
- Spinnaker And Job Sheets On Dinghies - Especially Modern Asymmetric Classes
- Control Line Applications On Larger Yachts
Materials:
- Sheave: Hard Anodised 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&Reg;
Specifications:
Sheave Ø:40Mm(1-9/16')
Max. Rope Ø: 9Mm(5/16')
M.W.L.:175Kg(385Lbs)
B. L.:500Kg(1,100Lbs)
Weight:44G(1.5Oz)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.6 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 5
Muy bueno y bastante amplio
Color: White, Style: Adjustable Width
Es bastante amplio como para acomodar varios extensores, ademas fácil de colocar y no tiene muchas piezas
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Reviewed in the United States on June 7, 2025
★★★★★ 4
Solid and strong
Color: Black, Style: Fixed Width
It's strong enough to hold it's shape. I attached it with 2 screws, and was able to put 2 power strips inside.
It's a bit annoying to have the big "StarTech.COM" logo on the front, so I mounted it backwards, facing the wall. The whole point of a black tray is to hide things and blend in, not advertise for "StarTech"! So minus 1 star for that.
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Reviewed in the United States on January 1, 2022
★★★★★ 5
Good quality
Color: Black, Style: Fixed Width
I used this to replace the cheap plastic one that came with my uplift desk.
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Reviewed in the United States on May 1, 2024
★★★★★ 5
Large enough to hold power strips
Color: Black, Style: Fixed Width, Color: Black, Style: Fixed Width
Very solid and clean looking. I used 2 under each table in a classroom to hide everything. See before & after pics. Note - I mounted the mini PC in a VESA bracket flat under the table top to hide that as well.
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Reviewed in the United States on March 30, 2023
★★★★★ 5
Well made
Color: Black, Style: Fixed Width
Nice steel trough for me to put all my computer cable in so my rabbit stops chewing them.
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Reviewed in the United States on July 14, 2023