Description
Schaefer 60mm Single Aluminum Block | Boat Supply Store
Engineered for demanding marine environments, this Schaefer single block features a 60mm (2 3/8") Delrin™ sheave for superior load-bearing capacity up to 2250 lbs (1020kg) and exceptional wear resistance. Its robust aluminum construction ensures longevity, while the lockable swivel head provides precise control by preventing line twisting during operation. Ideal for optimizing halyard, vang, or control line systems on performance-oriented sailboats.
Key Features
- Durable Aluminum Construction
- Smooth Delrin™ Sheave Operation
- High Safe Working Load (SWL) of 2250 lbs
- Lockable Swivel Head for Control
- Compact 60mm Sheave Diameter
- Versatile for Various Rigging Needs
- Lightweight at 7.4oz
- Maximum 1/2" Line Capacity
Specifications
| Product Specifications | |
|---|---|
| Sheave Diameter | 60mm (2 3/8") |
| Sheave Material | Delrin™ |
| Thickness | 1 3/32" (28mm) |
| Width | 2 1/2" (64mm) |
| Length | 5 1/32" (128mm) |
| Safe Working Load (SWL) | 2250 lbs (1020kg) |
| Weight | 7.4oz (210g) |
| Maximum Line Size | 1/2" (13mm) |
| Swivel Head | Lockable |
Who This Is For
Sailors and boaters requiring a dependable single block for critical rigging functions like halyards, control lines, and vangs. It is designed for those who prioritize smooth operation and secure, non-twisting line management.
How It Compares
| Feature | Schaefer 60mm Single Aluminum Block | Competitor |
|---|---|---|
| Sheave Diameter | 60mm (2 3/8") | — |
| Safe Working Load (SWL) | 2250 lbs (1020kg) | — |
| Sheave Material | Delrin™ | Nylon |
| Swivel Head Lock | Yes | Varies by model |
| Max Line Size | 1/2" (13mm) | 1/2" |
| Weight | 7.4oz (210g) | Approx. 7oz |
Common Concerns Answered
Is the swivel head prone to accidental unlocking?
No, this Schaefer block features a lockable swivel head designed to maintain its position securely, preventing unwanted rotation and line twisting.
What is the expected lifespan of this block?
With its robust aluminum construction and durable Delrin™ sheave, this block is engineered for long-term performance and resistance to wear in harsh marine conditions.
Is the price a barrier for performance?
While the initial investment may be higher than basic options, the superior durability, load rating, and operational benefits of this premium block provide significant long-term value for demanding sailing applications.
Frequently Asked Questions
What is the safe working load (SWL) of the Schaefer Single Aluminum Block - 60mm Sheave?
The Safe Working Load (SWL) for this block is 2250 lbs (1020kg).
What is the maximum line size this block can accommodate?
This block is designed to accommodate a maximum line size of 1/2" (13mm).
What are the dimensions of the Schaefer Single Aluminum Block - 60mm Sheave?
The block has a thickness of 1 3/32" (28mm), a width of 2 1/2" (64mm), and a length of 5 1/32" (128mm).
What material is the sheave made of?
The sheave is constructed from high-strength Delrin™ for smooth operation and durability.
Can the swivel head be locked in place?
Yes, the swivel head on this Schaefer Single Aluminum Block is lockable to prevent rotation and maintain consistent line orientation.
