Allen Brothers Double Upstand Block
Pickup available at 1830 East Interstate 30
Usually ready in 24 hours
Shipping and Delivery
Free shipping for orders of $98 or more (US Continental)
- Free shipping for orders of $750 or more (International)
- Add 3 business days to the standard shipping time for USPS deliveries.
- UPS and FedEx Ground usually take 2 to 5 business days for in-stock orders.
- UPS and FedEx deliver on Saturdays only for Friday overnight shipments, which may incur an extra
charge. - Orders that apply for free shipping will be delivered between 8 and 10 business days.
- International customers will be responsible for any applicable import duties,fees, or taxes.
- Oversized items like whisker poles, spinnaker poles, and tracks over 7 feet require freight shipping, with an estimated cost of $500 depending on the destination.These orders must be delivered to a
commercial address, such as a marina, yacht club, or boatyard where your sailboat is located.
A recipient must be present to sign for the delivery upon arrival,For more info, Click Here.
Allen Brothers Double Upstand Block
Allen Brothers Double Upstand Block
30mm Double Dynamic Block - Upstand
The 30mm Double Dynamic Block - Upstand is a low-profile solution designed for leading and redirecting control lines while maintaining smooth, efficient operation. Ideal for deck layouts where lines need to be guided towards cleats, jammers, or other control points, it is part of our Dynamic range and is best suited to applications requiring constant sheave movement.
Key Features
- Double-sheave upstand design for efficient line control and redirection
- Low-profile configuration reduces deck clutter and snagging
- Ideal for leading lines from mast bases, travellers, and deck control systems
- Patented Dynamic Bearing System with twin rows of stainless-steel ball bearings running on a stainless-steel rail for superior load capacity and longevity
- Low-friction, fast-rolling performance for smooth line handling
- Lightweight and durable construction
- Suitable for demanding marine applications requiring reliable and efficient rope control
- Designed for continuous sheave movement and long service life in harsh marine environments
Technical Description
| Accessories | Upstand |
| Breaking Load | 850 kg |
| Bearing Type | Dynamic |
| Maximum Working Load | 140 kg |
| Length | 45 mm |
| Sheave Diameter | 30 mm |
| Configuration | Double |
| Hole Pitch | 47 x 25 mm |
| Maximum Line Diameter | 8 mm |
| Weight | 45 g |
Allen Brothers Double Upstand Block
30mm Double Dynamic Block - Upstand
The 30mm Double Dynamic Block - Upstand is a low-profile solution designed for leading and redirecting control lines while maintaining smooth, efficient operation. Ideal for deck layouts where lines need to be guided towards cleats, jammers, or other control points, it is part of our Dynamic range and is best suited to applications requiring constant sheave movement.
Key Features
- Double-sheave upstand design for efficient line control and redirection
- Low-profile configuration reduces deck clutter and snagging
- Ideal for leading lines from mast bases, travellers, and deck control systems
- Patented Dynamic Bearing System with twin rows of stainless-steel ball bearings running on a stainless-steel rail for superior load capacity and longevity
- Low-friction, fast-rolling performance for smooth line handling
- Lightweight and durable construction
- Suitable for demanding marine applications requiring reliable and efficient rope control
- Designed for continuous sheave movement and long service life in harsh marine environments
Technical Description
| Accessories | Upstand |
| Breaking Load | 850 kg |
| Bearing Type | Dynamic |
| Maximum Working Load | 140 kg |
| Length | 45 mm |
| Sheave Diameter | 30 mm |
| Configuration | Double |
| Hole Pitch | 47 x 25 mm |
| Maximum Line Diameter | 8 mm |
| Weight | 45 g |
