Categories
- Accessories
- Ball Stoppers
- Barton Fuel Whistle
- Boat Care & Cleaning Products
- Burgees & Wind Indicators
- Canvas
- ClamSeal
- Clothing
- Drain Sockets & Bungs
- Fast Wrap
- Hooks & Clips
- Labels & Stickers
- Lights & Guards
- Man Ship Deck Fills
- Door Cabinet Latch Push Button
- Man Ship Dorades
- Race Packs
- Railfast
- Reflective Tape
- Riggers Tape
- Sail Repair Tapes
- SkyDock
- Splicing Tools
- Sta-Plug
- Wear Pads
- Wind Instruments
- PROtect Tapes
- Rubbaweld
- Blocks
- Sheaves
- Block Accessories
- Allen High Load & XHL Blocks
- Blocks for Sails
- Cheek & Foot Blocks
- Deck Organisers
- Halyard & Control Blocks
- Ratchet Blocks
- Sheave Exit Boxes
- Snatch Blocks
- Stanchion Mounted Blocks
- Stand-Up Blocks
- Vertical Blocks
- Classic Dinghy Blocks - Allen
- Dynamic Bearing Blocks - Allen
- Light Plain Bearing Blocks - Allen
- Mainsheet Blocks & Jammers - Allen
- Plain Bearing Blocks - Allen
- Stainless Steel Wire Blocks - Allen
- V Cleat Blocks - Allen
- High Load Blocks - Antal
- Looper Series - Antal
- Mainsheet Systems - Antal
- Mini Stainless Steel Blocks - Antal
- OPF Series Blocks - Antal
-
Stainless Steel Classic Blocks - Antal
- 65mm Stainless Steel Classic Blocks - Antal
- 75mm Stainless Steel Classic Blocks - Antal
- 90mm Stainless Steel Classic Blocks - Antal
- 120mm Stainless Steel Classic Blocks - Antal
- 150mm Stainless Steel Classic Blocks - Antal
- 180mm Stainless Steel Classic Blocks - Antal
- Foot Blocks - Antal Stainless Steel Series
- Halyard Blocks - Antal Stainless Steel Series
- Stopper Deck Blocks - Antal
- XXL Blocks - Antal
- Barton Marine Series Blocks
- Classic Wooden Blocks - Barton
- Industrial Snatch Blocks - Barton
- Stainless Steel Blocks - Barton
- Wire Rope Blocks - Barton
- Schaefer Series Blocks
- Wire & Utility Blocks - Schaefer
- Cars & Tracks
- Allen Self Tacking Jib System
- Allen Sliding Fairleads & Sheet Lead
- Allen Tracks & Accessories
- Allen Traveller Cars
- Dinghy Traveller - Barton
- End Stop - Antal
- Genoa Cars & Sliders - Barton
- Genoa Cars - Schaefer
- Genoa Systems - Antal
- Halyard Systems - Antal
- Life Rail System
- Mainsail Traveller Systems - Antal
- Mainsheet Tracks & Travellers - Barton
- Outhaul Sliders & Cars - Antal
- Self-Tacking Systems - Antal
- Spinnaker Pole Cars
- T-Track & Accessories - Antal
- Travelers - Schaefer
- Track - Schaefer
- Track Slides & Accessories - Schaefer
- 4Race Tracks & Accessories - Antal
- Track Slides - Allen
- Cleats & Clutches
- Clutches
- Quick Cleat by Barton
- Jam Cleats - Allen
- Mainsheet Jammer - Allen
- Mast & Deck Cleats - Allen
- Pump Action Cleat - Allen
- Swivel Cleats - Allen
- V Cleats - Allen
- Cam Cleats
- Clamcleat®
- Mast & Deck Cleats
- Roller Cleat - Antal
- Schaefer Aluminium Cleats
- Stainless Steel Cleats & Chocks
- Nylon Cleats - Barton
- Hardware
- Soft Links
- Low Friction Rings
- Dog Bones
- Boom Brake
- Boom Vang & Yacht Rod
- Boomstrut
- Chainplates
- Davits, Hoists & Lifts
- Deck Bushes
- Exit Plates
- Fairleads
- Gooseneck Fittings
- Halyard locks and hook racks
- Inspection Hatch
- Lacing Eyes & Eye Straps
- Mast Gates & Steps
- Mast & Boom Straps
- Miscellaneous Hardware
- Miscellaneous Spar & Rigging
- Rigging Pins
- Rowlocks & Sockets
- Rudder and Tiller Accessories
- Self Bailer
- Shackles
- Snatch Fairleads & Lacing Hooks
- Spinnaker Poles & Accessories
- Stanchions
- Stay & Vernier Adjusters
- Terminals
- Thimbles
- Toe Strap Plates & Buckles
- Toggles
- Trapeze & Hiking Equipment
- U Bolt & Pad Eyes
- Hatches & Ports
- Houdini Marine Deck Hatches
-
Houdini Marine Windows
- Houdini Marine Combination Windows
- Houdini Marine Direct Bonded Windows
- Houdini Marine Fixed Windows
- Houdini Marine Frameless Hinge Out Windows
- Houdini Marine Full-Drop Windows
- Houdini Marine Half-drop Windows
- Houdini Marine Hinged Windows
- Houdini Marine Hopper Windows
- Houdini Marine Sliding Windows
- Inspection Hatch
- Man Ship Hatches
-
Man Ship Portlights
- Man Ship Economy Opening Ports
- Man Ship Elliptical Opening Ports
- Man Ship Fixed Ports A
- Man Ship Fixed Ports B
- Man Ship Fixed Type Portholes
- Man Ship Fricative Hinge Ports
- Man Ship Heavy Duty Ports
- Man Ship Marine H-Trim
- Man Ship Opening Ports with Storm Covers
- Man Ship Oval Opening Ports
- Man Ship Rectangle Opening Ports
- Man Ship Round Opening Ports
- Man Ship Ventilator
- Man Ship Windows
- Stainless Steel Glass Saloon Door
- YS Portlights
- Man Ship Accessories
- Hatchseal Tape
- Plumbing
- Rope & Cord
- LIROS Dinghy Ropes
- LIROS Ropes XTreme Technology
- LIROS Performance Ropes
- LIROS Ropes Custom Performance
- LIROS Cruising Ropes
- LIROS Mooring & Anchoring
- LIROS Sailmaker
- LIROS Shockcord & Attachments
- LIROS Whipping Twine & Cords
- LIROS Kite / Flightsport
- LIROS Flightsport
- LIROS Outdoor
- LIROS Tools & Equipment
- LIROS Traditional Ropes
- LIROS Ropes Natural Fibre
- LIROS Ropes Theatre & Stage Rigging
- LIROS Climbing Ropes
- LIROS Safety Line & Arborist
- LIROS Ropes Offroad
- LIROS Industrial
- LIROS Barrier Ropes
- PROtect Rope
- Sail Systems
- Antal Batten Receptacles
- HS and FB Track & Accessories - Antal
- Fibreball Systems - Full Batten
- Hook Carriages - Full Batten Systems
- HS Guide Systems - Full Batten
- Battslides - Schaefer
- Furling Gear & Swivels
- Sail Hardware
- Schaefer Lazy Jack
- Schaefer Reefing
- Tuff Luff
- PROtect Tapes Headfoil
- Lazy Jack Kits - Barton
- Reefing Kit - Barton
- Winches
- Electric Winches - Antal
- Hydraulic Winches - Antal
- Line Driver - Antal
- Manual Winches - Antal
- Maxi winches - Antal
- Pedestals for Winches - Antal
- Winches for Classic Boats - Antal
- Antal Accessories & Spare parts
- XT Race Winches - Antal
- XT Winches - Antal
- Barton 'Wincher'
- Barton Composite Winches
- Barton Snubber winches
- Schaefer Winch Handles
- Allen Winch Handles
- Barton Winch Handles and Accessories
Allen Snatch Blocks
Author: Allen Brothers Date Posted:1 March 2021
A snatch block is a variation of pulley that has been designed to allow quick attaching and releasing of lines.
They work by having an opening mechanism for the side cheek, there are several different styles available on the market, but our range comes with a simple hinge mechanism that allows the side cheek to open a bit like the famous gull-wing car door or an oyster shell.
Our snatch block range is available with either a 30 or 40mm sheave, both of which feature the Allen dynamic bearing technology. Two rows of stainless-steel ball bearings running on a stainless-steel axle.
Our smallest snatch block, A4475, comes without a locking mechanism for the opening side cheek. Instead, it stays closed by clicking into place once pushed shut. When the A4475 becomes loaded, friction on the opening mechanism and central pin will increase. This added friction stops the cheek from being able to open. However, it can be forced open manually, either with a rigging spike or by using the leverage available with the small tabs on the bottom of the cheeks. This same mechanism is also available in the 40mm version.
The larger snatch block A1375 is available with a lock. The locking plate is spring-loaded and clips into place on the central pin where there is a small recess. This mechanism gives extra security for the larger loads that are expected of the 40mm sheave.
The range is available with a variety of different attachments to suit a wide range of applications. Generally, snatch blocks are utilised in barber haulier or spinnaker sheet systems on a boat, where you may want to quickly attach or release the block. However, they are also widely used in non-marine sectors such as theatre production, tree surgery and cargo transportation.
To view the full range of Allen snatch blocks, click here.