Please select your home edition
Allen Brothers

New Allen 40mm Flip Flop Block

by Allen 9 Jun 15:30 BST
New 40mm Flip Flop © Allen

Flip flop blocks are designed to pivot around a central fixing point, this keeps the rope close to the deck, mast or boom whilst still allowing the block to articulate to the correct lead angle, ensuring friction stays as low as possible whilst still guiding the rope to where it needs to go.

The new 40mm flip flop block range features a laser-cut stainless-steel body and backing plate, guaranteeing each one is finished to the exact same measurements and quality finish. This precision manufacturing style allows for maximum strength in the smallest form possible.  

All three versions of the new flip flop block range include a 40mm dynamic sheave Twin rows of stainless-steel ball bearings running on a stainless-steel axle, with a nylon sheave to guide the rope.

The cam cleat versions feature two locations to install the dynamic sheave. Simply undo and remove the bolt holding the sheave in place and relocate it in either fixing hole on the main body. These two options allow the flip flop block range to be installed and used in a wider range of applications.

A clevis pin holds the main flip flop body to the backing plate. This clevis pin is the central flip flop /pivot point for the block. Removing the clevis pin will part the body and backing plate, allowing for easy access to the backing plate as well as giving the option to install the body either way up.

The backing plate has fixing hole centres of 60.3mm. This makes the range easily interchangeable with existing products on the market.

This new flip flop block range is ideal for use on many different classes of boats and in a wide range of applications:
  • Upgrade to J70 spinnaker halyard cleat.
  • F18, Nacra 17 spinnaker halyard cleat
  • Small keelboat pole launcher system.
  • Dinghy and small keelboat spinnaker or jib sheet turning point.
  • Dinghy jib sheet cleat.
  • Keelboat outhaul cleat.
  • Keelboat backstay system.

Maximum Working Load The 40mm flip flop block range is rated to a maximum working load of 150Kg. This is the load at which the Dynamic sheave will start to deform and will no longer work as designed.

Its important to remember, that this is the loading at the sheave, so for example, if used in a spinnaker halyard system the load of the spinnaker is shared between all the fittings in the system.

40mm Flip Flop Block
40mm Flip Flop Block
40mm Flip Flop Block with Allenite Cam Cleat
40mm Flip Flop Block with Allenite Cam Cleat
40mm Flip Flop Block With Cam Cleat
40mm Flip Flop Block With Cam Cleat
Follow us on social media
Copyright © 2022 Allen Brothers, All rights reserved.

Related Articles

Allen to showcase new products at METS
The first 'normal' METSTRADE show since the Covid pandemic Allen are extremely pleased to be exhibiting this year at the first 'normal' METSTRADE show since the Covid pandemic. Posted on 11 Nov
New: Allen High Roller Blocks
High performance block for high stakes sailing Introducing the new high roller block range. A high performance block designed for high stakes sailing. The high roller block range is our first range of roller (needle) bearing blocks, suitable for highly loaded and fast running lines on sports boats. Posted on 27 Oct
New ILCA Mainsheet Blocks from Allen
18 months of development and testing comes to fruition This new set of ILCA mainsheet blocks has been under development and testing for the past 18 months, and we are now pleased to announce the new blocks are now in stock and ready to improve your sheeting experience! Posted on 29 Sep
Allen's Hatch Cover Bag
Quickly and easily maximise storage space on your dinghy Looking for a place to stash your snacks, drinks bottle or even a few spare parts whilst out on the water? There's only so many things you can shove in the front of your PFD, so fitting a hatch cover bag will quickly maximise storage space on your dinghy. Posted on 11 Aug
The lightest and strongest
The new TiiTAN block's breaking load is 1250kg A key feature within the TiiTAN bearing system is the use of a precision plain bearing washer. When the TiiTAN is exposed to extreme static loads, which would normally cause damage to the internal bearing system, it changes to a plain bearing block. Posted on 2 Aug
The new TiiTAN Block
Charting new territory for the small pulley market Introducing the TiiTAN Block, the latest high-performance sailing pulley from Allen. The TiiTAN is a further development of the industry-leading XHL block range and is charting new territory for the small pulley market. Posted on 14 Jul
New Allen Product Range: DB Deck Organisers
Lead or divert control lines and halyards with minimal friction Lead or divert control lines and halyards with minimal friction. The Allen DB deck organiser range is available in 20, 30 and 40mm sheave sizes. All feature two lightweight aluminium cheeks, three dynamic bearing sheaves, a becket and nuts and bolts. Posted on 7 Jul
Allen ILCA Wear Protectors
Stop the damage which can be caused by the mainsheet traveller blocks Introducing the ILCA Wear Protectors, a product designed to stop the damage which can be caused by the mainsheet traveller blocks, ensuring your boat stays protected. Posted on 26 May
How to service Ball Bearing Cam Cleats
A vital part of most control systems on both dinghies and yachts Cam cleats are a vital part of most control systems on both dinghies and yachts. Without them, you would have to hold onto the rope for hours or make the rope off around a horn cleat, not ideal if you want to quickly adjust something! Posted on 9 May