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Ronstan Series 40 Auto Ratchet Block - Swivel Head
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Ronstan Series 40 Auto Ratchet Block - Swivel Head

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Ref: RORF46100
£47.20
Delivered from £3.00, Click Here for Delivery Options

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Next Day Delivery available - See Delivery below for more details
In Stock - Stock Info


The popular Ronstan Series 40 Auto Ratchet Block is now available with a Shackle Swiveling head.

On this automatic model, 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.

• Up to 14:1 holding power - highest available!
• Smooth easing of sheets
• Fully Automatic load sensing ratchet engagement
• Swivel shackle head for unlmited block rotation.
• Stainles steel shackle head for ultimate durability and compatibility with harsh fixing points.

Sheave Ø - 40 mm
Max. Rope Ø - 9 mm
M.W.L. - 175 kg
B. L. - 500 kg
Weight - 44 g

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. 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
A swivelling shackle is used for attaching the block, which allows for unlimited twists of the block.

Smooth easing of sheets
With auto models the sheet runs out smoothly and freely as soon as the ratchet mechanism disengages. When engaged, and with manual models, the sheave cross - hole geometry eliminates the 'shuddering' ease-out that you can expect from traditional v-groove ratchet blocks.
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This product can be delivered by the following options depending on you location.

Mainland UK excluding Scottish Highlands
Standard Delivery - £3.00, FREE if you spend over £100
Priority Delivery - £4.00
Next Day Delivery - £6.95, if the website says the item you order is not in stock we will send it as soon as we can.
Saturday Delivery - £25
Shop Collection - Order online we will get your order ready and call you when it's ready to collect


Rest of the UK
For orders to the rest of the UK, shipping charges for this product are shown below. Where you order multiple items the final shipping charges will be shown in the checkout.
AreaStandard DeliveryPriority DeliveryNext Day Delivery
Isle of Man / Isle of Scilly£3.00£4.00£10.00
Isle of Wight£3.00£4.00£10.00
Jersey / Guernsey£3.00£4.00N/A
Northern Ireland£3.00£4.00£10.00
Scottish Highlands£3.00£4.00£10.00
Scottish Islands£3.00£4.00£10.00

* If the shipping is higher than you would expect, there is an option in the checkout that you can choose and we will advise the best price of shipping we can.
**We will contact you to advise the cost of shipping after you have placed your order. At this point you may continue or cancel your order, we wont take any payment from your card until you have confirmed the shipping charges.

Europe & Rest of the World
For orders to Europe and around the world, shipping charges and options will be shown in the checkout. They will appear once you have entered you address, so we know where you would like your order shipped.

If no shipping charges are calculated, we will contact you to advise the cost of shipping. At this point you may contine or cancel your order, we wont take any payment from your card until you have confirmed the shipping charges.


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