SKU:A2031SC
30mm Single Dynamic Block -Swivel, Fork
30mm Single Dynamic Block -Swivel, Fork
In stock - 43 units(Can be backordered)
Require larger quantities? Contact us
Couldn't load pickup availability

Description
30mm Single Dynamic Block With Swivel Fork Head
The 30mm Single Dynamic Block With Swivel Fork Head is a versatile, low-friction pulley designed for smooth and efficient line handling. Part of our Dynamic range, it is ideal for applications requiring constant sheave movement and changing load angles.
The integrated swivel fork head allows the block to rotate and articulate, ensuring optimal alignment with the line and reducing side loading.
Key Features
- Single-sheave design for smooth and efficient line handling
- Swivel Fork Head with threaded pin for secure attachment
- Swivels and articulates to align with changing load directions
- Low-friction, fast-rolling performance
- Lightweight and durable construction
- Patented Dynamic Bearing System with twin rows of stainless-steel ball bearings running on a stainless-steel rail for superior load capacity and longevity
- Integrated Becket with a large central rivet, providing a lightweight and rope-friendly attachment point for cascade systems
- Ideal for control line applications requiring flexibility, smooth operation, and reliable load alignment
- Suitable for use in demanding marine environments with smaller diameter rope lines
| Accessories | Swivel, Fork |
|---|---|
| Bearing type | Dynamic |
| Brand | Allen |
| Breaking load kg | 400 |
| Configuration | Single |
| Height mm | 15 |
| Iges | GenericFileDrop |
| Iges file link | https://abassets.ams3.digitaloceanspaces.com/iges/a2031sc.igs |
| Length mm | 63 |
| Maximum line diameter mm | 8 |
| Maximum working load kg | 140 |
| GenericFileDrop | |
| Pdf ref link | https://abassets.ams3.digitaloceanspaces.com/product_files/a2031sc-ref.pdf |
| Pin size mm | 4 |
| Related collection | CollectionDrop |
| Sheave diameter mm | 30 |
| Short description | 30mm Single block with swivel fork |
| Width mm | 30 |
| SKU | Title | Breaking Load Kg | Max Working Load Kg | Hole Pitch mm | Length mm | Max Line Dia mm | Pin Size mm | Weight (g) | Price |
|---|---|---|---|---|---|---|---|---|---|
| A2020-30 |
20mm & 30mm Single Dynamic Blocks - Linked |
540 | 115 | - | 80 | 8 | - | 37 |
Regular price
£26.84 ex VAT
£32.21 inc VAT
Regular price
|
| A2038 |
30mm Back To Back Dynamic Block |
750 | 140 | - | 78 | 8 | - | 50 |
Regular price
£45.40 ex VAT
£54.48 inc VAT
Regular price
|
| A2038HL |
30mm Back To Back High Load Block |
750 | 600 | - | 78 | 8 | - | 77 |
Regular price
£85.59 ex VAT
£102.71 inc VAT
Regular price
|
| A2032 |
30mm Double Dynamic Block |
1250 | 280 | - | 63 | 8 | - | 73 |
Regular price
£41.07 ex VAT
£49.28 inc VAT
Regular price
|
| A2032A |
30mm Double Dynamic Block - Articulating |
1250 | 280 | - | 63 | 8 | - | 64 |
Regular price
£43.34 ex VAT
£52.01 inc VAT
Regular price
|
| A2033 |
30mm Double Dynamic Block - Becket |
1250 | 280 | - | 76 | 8 | - | 77 |
Regular price
£42.66 ex VAT
£51.19 inc VAT
Regular price
|
| A2136M |
30mm Double Dynamic Block - Composite Cheek |
400 | 280 | 30 | 50 | 8 | - | 36 |
Regular price
£38.04 ex VAT
£45.65 inc VAT
Regular price
|
| A4111 |
30mm Double Dynamic Block - Upstand |
850 | 140 | 47 x 25 | 45 | 8 | - | 45 |
Regular price
£60.14 ex VAT
£72.17 inc VAT
Regular price
|
| A2132 |
30mm Double Dynamic Through Deck Block |
500 | 140 | 90 | 77 | 8 | - | 45 |
Regular price
£45.37 ex VAT
£54.44 inc VAT
Regular price
|
| A2032HL |
30mm Double High Load Block |
1250 | 450 | - | 63 | 8 | - | 86 |
Regular price
£81.18 ex VAT
£97.42 inc VAT
Regular price
|
| A2136MHL |
30mm Double High Load Block - Composite Cheek |
400 | 300 | 30 | 50 | 8 | - | 59 |
Regular price
£60.42 ex VAT
£72.50 inc VAT
Regular price
|
| A2032TiiHL |
30mm Double High Load Block - Tii-On |
1100 | 300 | - | 41.5 | 8 | - | 59 |
Regular price
£82.27 ex VAT
£98.72 inc VAT
Regular price
|
| A2036-PROFIX |
30mm Profix Cheek Adaptor |
- | 3.8 | - | - | - | - | 5 |
Regular price
£11.61 ex VAT
£13.93 inc VAT
Regular price
|
| A2030 |
30mm Single Dynamic Block |
750 | 140 | - | 49 | 8 | - | 27 |
Regular price
£14.91 ex VAT
£17.89 inc VAT
Regular price
|
| A2031-90S |
30mm Single Dynamic Block - 90° |
250 | 140 | - | 54.6 | 8 | - | 32 |
Regular price
£21.60 ex VAT
£25.92 inc VAT
Regular price
|
| A2031F |
30mm Single Dynamic Block - Articulating Fork |
450 | 140 | - | 59 | 8 | 4 | 36 |
Regular price
£19.72 ex VAT
£23.66 inc VAT
Regular price
|
| A2036M |
30mm Single Dynamic Block - Composite Cheek |
400 | 140 | 30 | 50 | 8 | - | 23 |
Regular price
£19.73 ex VAT
£23.68 inc VAT
Regular price
|
| A2039FIDDLE |
30mm Single Dynamic Block - Fiddle |
600 | 140 | - | 85 | 8 | 4 | 45 |
Regular price
£77.35 ex VAT
£92.82 inc VAT
Regular price
|
| A2039-CAM |
30mm Single Dynamic Block - Fiddle, Cleat |
600 | 140 | - | 88 | 8 | 4 | 86 |
Regular price
£97.31 ex VAT
£116.77 inc VAT
Regular price
|
| A2039-CAM-LDC |
30mm Single Dynamic Block - Fiddle, Cleat, Hook, Becket |
600 | 140 | - | 100 | 8 | - | 86 |
Regular price
£86.77 ex VAT
£104.12 inc VAT
Regular price
|
| A2030F |
30mm Single Dynamic Block - Fork |
450 | 140 | - | 56 | 8 | 5 | 32 |
Regular price
£19.72 ex VAT
£23.66 inc VAT
Regular price
|
| A2030F-873 |
30mm Single Dynamic Block - ILCA |
450 | 140 | - | 77 | 8 | 5 | 41 |
Regular price
£26.49 ex VAT
£31.79 inc VAT
Regular price
|
| A2039 |
30mm Single Dynamic Block - Linked |
750 | 140 | - | 94 | 8 | - | 50 |
Regular price
£31.59 ex VAT
£37.91 inc VAT
Regular price
|
| A2030R2 |
30mm Single Dynamic Block - Linked, Ring |
750 | 140 | - | - | 8 | - | 82 |
Regular price
£34.86 ex VAT
£41.83 inc VAT
Regular price
|
| A2030R3 |
30mm Single Dynamic Block - Linked, Ring |
750 | 140 | - | - | 8 | - | 109 |
Regular price
£52.07 ex VAT
£62.48 inc VAT
Regular price
|
| A2031 |
30mm Single Dynamic Block - Multi Function |
500 | 140 | - | 47 | 8 | 4 | 27 |
Regular price
£13.50 ex VAT
£16.20 inc VAT
Regular price
|
| A2036 |
30mm Single Dynamic Block - Profix Cheek |
500 | 140 | - | 59 | 8 | 4 | 36 |
Regular price
£21.60 ex VAT
£25.92 inc VAT
Regular price
|
| A2030LZ |
30mm Single Dynamic Block - Stand Up |
500 | 140 | 34 | 59 | 8 | - | 32 |
Regular price
£22.71 ex VAT
£27.25 inc VAT
Regular price
|
| A2030SC |
30mm Single Dynamic Block - Swivel |
450 | 140 | - | 66 | 8 | 4 | 36 |
Regular price
£37.71 ex VAT
£45.25 inc VAT
Regular price
|
| A2030SHK |
30mm Single Dynamic Block - Swivel, Hook |
450 | 140 | - | 70 | 8 | - | 36 |
Regular price
£36.91 ex VAT
£44.29 inc VAT
Regular price
|
| A2030Tii |
30mm Single Dynamic Block - Tii-On |
750 | 140 | - | 42 | 8 | - | 23 |
Regular price
From £14.91 ex VAT
£17.89 inc VAT
Regular price
|
| A2134 |
30mm Single Dynamic Block - Upstand |
600 | 140 | 28.6 | 39 | 8 | - | 36 |
Regular price
£33.88 ex VAT
£40.66 inc VAT
Regular price
|
| A4101 |
30mm Single Dynamic Block - Upstand |
850 | 140 | 25 | 45 | 8 | - | 59 |
Regular price
£33.88 ex VAT
£40.66 inc VAT
Regular price
|
| A2031SC |
30mm Single Dynamic Block -Swivel, Fork |
400 | 140 | - | 63 | 8 | 4 | 36 |
Regular price
£28.58 ex VAT
£34.30 inc VAT
Regular price
|
| A2131 |
30mm Single Dynamic Through Deck Block |
500 | 140 | 60 | 47 | 8 | - | 26 |
Regular price
£30.23 ex VAT
£36.28 inc VAT
Regular price
|
| A2030HL |
30mm Single High Load Block |
800 | 300 | - | 49 | 8 | - | 41 |
Regular price
£34.97 ex VAT
£41.96 inc VAT
Regular price
|
| A2036MHL |
30mm Single High Load Block - Composite Cheek |
400 | 300 | 30 | 50 | 8 | - | 36 |
Regular price
£28.68 ex VAT
£34.42 inc VAT
Regular price
|
| A2030HLF |
30mm Single High Load Block - Fork |
450 | 300 | - | 56 | 8 | 5 | 41 |
Regular price
£39.79 ex VAT
£47.75 inc VAT
Regular price
|
| A2030HLF-873 |
30mm Single High Load Block - ILCA |
750 | 300 | - | 77 | 8 | 5 | 50 |
Regular price
£46.56 ex VAT
£55.87 inc VAT
Regular price
|
| A2036HL |
30mm Single High Load Block - Profix Cheek |
500 | 300 | 38.6 | 58.8 | 8 | 4 | 41 |
Regular price
£41.66 ex VAT
£49.99 inc VAT
Regular price
|
| A2030TiiHL |
30mm Single High Load Block - Tii-On |
800 | 300 | - | 41 | 8 | - | 36 |
Regular price
From £34.97 ex VAT
£41.96 inc VAT
Regular price
|
| A9030 |
30mm Single TiiTAN Block |
1250 | 500 | - | 40.64 | 8 | - | 27 |
Regular price
£178.62 ex VAT
£214.34 inc VAT
Regular price
|
| A9031-873 |
30mm Single TiiTAN Block - ILCA |
1000 | 500 | - | 68.8 | 8 | 5 | 41 |
Regular price
£184.57 ex VAT
£221.48 inc VAT
Regular price
|
| A2030XHL-B |
30mm Single XHL Block |
1250 | 500 | - | 43 | 8 | - | 41 |
Regular price
£136.22 ex VAT
£163.46 inc VAT
Regular price
|
| A2031XHL-873-B |
30mm Single XHL Block - ILCA Vang |
1000 | 450 | - | 57 | 8 | - | 54 |
Regular price
£142.97 ex VAT
£171.56 inc VAT
Regular price
|
| A2034 |
30mm Triple Dynamic Block |
1750 | 490 | - | 63 | 8 | - | 104 |
Regular price
£53.74 ex VAT
£64.49 inc VAT
Regular price
|
| A2034A |
30mm Triple Dynamic Block - Articulating |
1750 | 490 | - | 63 | 8 | - | 82 |
Regular price
£56.00 ex VAT
£67.20 inc VAT
Regular price
|
| A2035 |
30mm Triple Dynamic Block - Becket |
1750 | 420 | - | 83 | 8 | - | 113 |
Regular price
£62.83 ex VAT
£75.40 inc VAT
Regular price
|
| A2037 |
30mm Triple Dynamic Block - Cleat, Becket |
1750 | 490 | - | 83 | 8 | - | 145 |
Regular price
£114.76 ex VAT
£137.71 inc VAT
Regular price
|
| A2034-676 |
30mm Triple Dynamic Block - Inverted Cleat |
1750 | 490 | - | 65 | 8 | - | 50 |
Regular price
£105.69 ex VAT
£126.83 inc VAT
Regular price
|
| A2035-676 |
30mm Triple Dynamic Block - Inverted Cleat, Becket |
1750 | 490 | - | 83 | 8 | - | 145 |
Regular price
£114.76 ex VAT
£137.71 inc VAT
Regular price
|
| A2034HL |
30mm Triple High Load Block |
1750 | 650 | - | 63 | 8 | - | 132 |
Regular price
£113.91 ex VAT
£136.69 inc VAT
Regular price
|