Ronstan Series 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-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® 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®/Spectra® 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® 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®
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)
- Product Name: Ronstan Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head
- UPC Number: 9316800459513
- Shop by Brand: Ronstan
Welcome to the Everest Marketplace Seller Storefront, where we're on a mission to equip you with the gear that'll have you thriving in the great outdoors like a legendary Yeti. Whether you're into hunting, fishing, survival, or more, you've stumbled upon the right place!
Got questions about our products? Need to make a return or can't find what you're looking for? Reach out to us at 1-866-806-0934 or drop us a line at info@everest.com.
And hey, if you happen to be a seller with products listed under the Everest storefront, let's chat so we can match those items to your very own kingdom!
Shipping & Returns
All sellers will furnish tracking information for shipped products, whenever relevant. This tracking data enables you to keep tabs on the status of your shipment. If you purchase products from several sellers in one order, you will receive tracking information from each respective seller.
Following the dispatch of your order, Everest.com will send you an email notification containing the tracking details. Kindly ensure that the email address provided during the checkout process is accurate and up to date.
Returns are only accepted for products bought directly from Everest.com. To qualify for a return, the product must be unused, in its original condition, and with the original packaging intact. Some products may be exempt from the return policy. Should you wish to initiate a return, please reach out to the seller directly within 7 days from the date of delivery.
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In stock
We prioritize serving those who serve nature. Everest represents the boundless outdoors. Find out how we give back.
Ready to wrestle Yetis over prices? Everest is up for the challenge with our Price Match guarantee.
meet marcus
The Story of Marcus Moose
In the vast wilderness the Everest marketplace, a legendary customer service character emerged—Marcus Moose. With a passion for the outdoors rivaling even the mightiest Yeti, Marcus's mission was clear: guide people to embrace nature's wonders. Marcus, the guardian of adventure, ensured no one was left behind. The wilderness awaits, and with Marcus by your side, your wildest dreams are just a hoofstep away.
Shipping & Returns
All sellers will furnish tracking information for shipped products, whenever relevant. This tracking data enables you to keep tabs on the status of your shipment. If you purchase products from several sellers in one order, you will receive tracking information from each respective seller.
Following the dispatch of your order, Everest.com will send you an email notification containing the tracking details. Kindly ensure that the email address provided during the checkout process is accurate and up to date.
Returns are only accepted for products bought directly from Everest.com. To qualify for a return, the product must be unused, in its original condition, and with the original packaging intact. Some products may be exempt from the return policy. Should you wish to initiate a return, please reach out to the seller directly within 7 days from the date of delivery.
We prioritize serving those who serve nature. Everest represents the boundless outdoors. Find out how we give back.
Ready to wrestle Yetis over prices? Everest is up for the challenge with our Price Match guarantee.
meet marcus
The Story of Marcus Moose
In the vast wilderness the Everest marketplace, a legendary customer service character emerged—Marcus Moose. With a passion for the outdoors rivaling even the mightiest Yeti, Marcus's mission was clear: guide people to embrace nature's wonders. Marcus, the guardian of adventure, ensured no one was left behind. The wilderness awaits, and with Marcus by your side, your wildest dreams are just a hoofstep away.
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-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® 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®/Spectra® 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® 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®
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)
- Product Name: Ronstan Series 40 Ratchet Orbit Block™ - Single - Auto - Swivel Shackle Head
- UPC Number: 9316800459513
- Shop by Brand: Ronstan
Welcome to the Everest Marketplace Seller Storefront, where we're on a mission to equip you with the gear that'll have you thriving in the great outdoors like a legendary Yeti. Whether you're into hunting, fishing, survival, or more, you've stumbled upon the right place!
Got questions about our products? Need to make a return or can't find what you're looking for? Reach out to us at 1-866-806-0934 or drop us a line at info@everest.com.
And hey, if you happen to be a seller with products listed under the Everest storefront, let's chat so we can match those items to your very own kingdom!
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