SeaSure Blocks offers a versatile range of marine-grade blocks designed for various applications, including high-load uses such as lifting systems and garage door mechanisms.
|
1-2 weeks delivery time SeaSure 02.01 19 mm general purpose blocks are designed for use with abrasive ropes in high-load applications. They feature a 19 mm carbon fibre sheave, a marine-grade 316 stainless steel outer cage and a hollow stainless steel rivet running through the centre of the sheave. The plain bearing configuration is suitable for higher loads. The single block has a breaking load of 400 kg and weighs 10 g. Typical applications include control lines, halyards, outhauls and furling lines.
|
$ 17.34
Item:
| ||
|
1-2 weeks delivery time SeaSure 02.05 is a compact 19 mm single block with rivet, designed for abrasive ropes and higher-load applications. It features a carbon fibre sheave, a marine-grade 316 stainless steel outer cage and a hollow stainless steel rivet that can be used as a rope attachment point. The block has a plain bearing, is suitable for ropes up to 4 mm, and provides an MBS of 400 kg with an SWL of 200 kg. Typical applications include control lines, halyards, outhauls and furling lines.
|
$ 235.65
-
+
| ||
|
1-2 weeks delivery time SeaSure 02.09 is a compact 19 mm single cage block with a carbon fibre sheave and marine-grade 316 stainless steel outer cage. It uses a plain bearing configuration for higher-load applications and is suitable for ropes up to 4 mm. The fixing hole diameter is 4 mm, with 13 mm hole centres parallel to the sheave and 17 mm hole centres across the sheave. The block has an MBS of 400 kg and an SWL of 200 kg.
|
$ 88.48
-
+
| ||
|
1-2 weeks delivery time SeaSure 00.01 is a 25 mm bolt-down mini block with marine-grade stainless steel side plates and rivets and a hard-wearing plastic sheave. The block uses a simple plain bearing and is suitable for ropes up to 8 mm in diameter. It has 5 mm diameter fixing holes, an MBS / breaking load of 500 kg and an SWL of 250 kg. The compact fixed-mount design is part of SeaSure’s Mini series and can be used in pulley systems for lifting, garage door mechanisms and storage solutions.
|
$ 22.16
Item:
| ||
|
1-2 weeks delivery time SeaSure 00.02 is a 25 mm flat mounted Mini block manufactured with marine-grade stainless steel side plates and rivets and a hard-wearing black plastic sheave. The block uses a simple plain bearing, accommodates ropes up to 8 mm in diameter and has a 500 kg MBS with a 250 kg SWL. A flange on either side of the sheave includes fixing holes so the block can be bolted or screwed directly to a surface, with 5 mm diameter fixing holes. The design is suitable for marine and industrial pulley applications.
|
$ 183.15
-
+
| ||
|
1-2 weeks delivery time SeaSure 00.03 is a compact 25 mm single Mini block built with marine-grade stainless steel side plates and rivets and a hard-wearing black plastic sheave. It uses a simple plain bearing, accepts ropes up to 8 mm in diameter and has 5 mm fixing holes. The block provides a 500 kg breaking load (MBS) and a 250 kg SWL, making it suitable for compact marine and general pulley applications.
|
$ 17.13
Item:
| ||
|
1-2 weeks delivery time SeaSure 00.05 is a 25 mm single Mini block manufactured with marine-grade stainless steel side plates and rivets and a hard-wearing Arnite plastic sheave. It is suitable for ropes up to 8 mm and has a breaking load of 500 kg. When fitted with the SeaSure 25.17 lacing eye, the block can stand upright and resist falling from side to side, making it suitable for lifting, garage door and storage pulley systems.
|
$ 17.13
Item:
| ||
|
1-2 weeks delivery time SeaSure 00.07 is a 25 mm single Mini block with clevis pin attachment, built with marine-grade stainless steel side plates and rivets and a hard-wearing Arnite plastic sheave. The block accepts ropes up to 8 mm and has a breaking load of 500 kg. The clevis pin allows quick fitting to and removal from lacing eyes, eye bolts and U-bolts, making the block suitable for compact lifting, garage door and storage pulley systems.
|
$ 27.22
Item:
| ||
|
1-2 weeks delivery time SeaSure 00.08 is a 25 mm single Mini block with shackle attachment, manufactured with marine-grade stainless steel side plates and rivets and a hard-wearing black plastic sheave. It uses a simple plain bearing, accepts ropes up to 8 mm and has an MBS / breaking load of 500 kg with an SWL of 250 kg. The shackle attachment allows the block to be connected quickly and easily to a suitable attachment point, while the compact design suits both marine and industrial pulley applications.
|
$ 260.38
-
+
| ||
|
1-2 weeks delivery time SeaSure 00.09 is a 25 mm single Mini block with a hollow rivet attachment, manufactured with marine-grade stainless steel side plates and rivets and a hard-wearing Arnite plastic sheave. It uses a simple plain bearing, accepts ropes up to 8 mm and has an MBS / breaking load of 500 kg with an SWL of 250 kg. The hollow rivet at the top allows rope to be easily spliced or tied around the smooth rivet, creating a purchase system or providing a soft attachment to a fixture.
|
$ 216.52
-
+
| ||
|
1-2 weeks delivery time SeaSure 00.11 is a 25 mm single Mini block with a becket at one end and a clevis pin attachment at the other. It is built with marine-grade stainless steel side plates and rivets and a hard-wearing plastic sheave. The block accepts ropes up to 8 mm and has an MBS / breaking load of 500 kg with an SWL of 250 kg. The becket allows the block to form part of a purchase system, while the clevis pin provides a removable attachment to a fixing point.
|
$ 277.35
-
+
| ||
|
1-2 weeks delivery time SeaSure 00.13 is a 25 mm single Mini block with an integrated V-jammer and becket attachment. It is manufactured with marine-grade stainless steel side plates and rivets and a hard-wearing Arnite plastic sheave. The block accepts ropes up to 8 mm and has an MBS / breaking load of 500 kg with an SWL of 250 kg. The becket provides an attachment point for splicing or tying off the rope, while the V-jammer allows the line to be locked off directly at the block; the configuration can be used to create a 2:1 purchase system.
|
$ 180.68
-
+
| ||
|
1-2 weeks delivery time SeaSure 00.15 is a 25 mm quarter lead Mini block manufactured with marine-grade stainless steel side plates and rivets and a hard-wearing black plastic sheave. It uses a simple plain bearing, accepts ropes up to 8 mm and has an MBS / breaking load of 500 kg with an SWL of 250 kg. The integrated fixing plate has 5 mm fixing holes, allowing the block to be secured directly to a surface with screws or bolts.
|
$ 132.21
-
+
| ||
|
1-2 weeks delivery time SeaSure 00.16 is a 25 mm quarter lead Mini block manufactured with marine-grade stainless steel side plates and rivets and a hard-wearing black plastic sheave. It uses a simple plain bearing, accepts ropes up to 8 mm and has an MBS / breaking load of 500 kg with an SWL of 250 kg. The elongated mounting plate incorporates 5 mm fixing holes, allowing the block to be secured directly to a surface with suitable screws or bolts.
|
$ 127.87
-
+
| ||
|
1-2 weeks delivery time SeaSure 00.17 is a 25 mm deck lead Mini block from SeaSure’s plain bearing range, constructed with marine-grade stainless steel side plates and rivets and a hard-wearing Arnite plastic sheave. It accepts ropes up to 8 mm in diameter, uses 5 mm fixing holes and has a breaking load of 500 kg. The fixed deck-lead configuration is suitable for compact pulley systems, including lifting systems, garage door mechanisms and storage solutions.
|
$ 25.48
Item:
| ||
|
1-2 weeks delivery time SeaSure 00.19 is a 25 mm swivel Mini block from SeaSure’s plain bearing range, built with marine-grade stainless steel side plates and rivets and a hard-wearing Arnite plastic sheave. It is suitable for ropes up to 8 mm, uses 5 mm fixing holes and has a breaking load of 700 kg. The integrated swivel allows the block to follow the rope path and maintain smooth running while the mounting orientation changes.
|
$ 53.90
Item:
| ||
|
1-2 weeks delivery time SeaSure 00.21 is a 25 mm double Mini block with shackle attachment, manufactured with marine-grade stainless steel side plates and rivets and hard-wearing Arnite plastic sheaves. It accepts ropes up to 8 mm and has a breaking load of 1000 kg. The double-sheave configuration can be used to create a 4:1 purchase system, helping reduce rope load when lifting heavier objects, while the shackle provides a practical attachment point.
|
$ 47.34
Item:
| ||
|
1-2 weeks delivery time SeaSure 00.23 is a 25 mm double Mini block with becket, built with marine-grade stainless steel side plates and rivets and hard-wearing Arnite plastic sheaves. It accepts ropes up to 8 mm and has a breaking load of 1000 kg. The double-sheave and becket configuration can be used to create 4:1 or 5:1 purchase systems, helping reduce rope load when lifting heavier objects.
|
$ 57.60
Item:
| ||
|
1-2 weeks delivery time SeaSure 00.25 is a 25 mm double Mini block with integrated V-jammer and becket, manufactured with marine-grade stainless steel side plates and rivets and hard-wearing Arnite plastic sheaves. It accepts ropes up to 8 mm and can be used to create 4:1 or 5:1 purchase systems, while the V-jammer allows the rope to be locked off directly at the block. SeaSure states a breaking load of 1000 kg; the supplied catalogue data additionally lists MBS 750 kg and SWL 375 kg.
|
$ 267.93
-
+
| ||
|
1-2 weeks delivery time SeaSure 00.29 is a 25 mm swivel Mini block from SeaSure’s plain bearing range, manufactured with marine-grade stainless steel side plates and rivets and a hard-wearing Arnite plastic sheave. It accepts ropes up to 8 mm and has a breaking load of 700 kg. The integral swivel allows the block to follow changes in the incoming rope direction so the rope does not twist and bind during operation.
|
$ 68.64
Item:
| ||
What are the key features of the SeaSure general purpose block and how does it perform in marine environments?
The SeaSure general purpose block, part of the 25mm bearing block range, is designed for high-load applications, making it ideal for use with abrasive ropes and systems requiring reliable performance. Featuring robust construction with steel side plates and rivets, the block ensures durability and smooth operation in marine environments. Its versatile design allows it to be used in various applications, from rigging systems to lifting mechanisms, offering efficient performance even under demanding conditions.
How do customer reviews reflect the durability and performance of SeaSure blocks in different marine environments?
Customer reviews highlight the durability and performance of SeaSure blocks, particularly the 25mm plain bearing block, which is praised for its robust construction, including features like steel side plates and rivets with an arnite coating. Reviewers consistently note how well these blocks handle high loads, even when used with abrasive ropes in demanding marine environments. The positive feedback reflects their reliability in both recreational and industrial applications, with users appreciating their smooth operation and resistance to harsh conditions like saltwater and UV exposure.
How does the plastic construction of SeaSure blocks compare to other materials in terms of durability and strength?
The plastic construction of SeaSure blocks offers a lightweight and cost-effective solution while maintaining strong durability for many marine applications. Compared to traditional materials like metal, plastic blocks are resistant to corrosion from saltwater and are less prone to rust, making them ideal for extended use in harsh marine environments. While plastic blocks may not have the same tensile strength as stainless steel, their design and use in systems such as high-load applications and abrasive rope handling ensure reliable performance when properly selected.