Ronstan 30mm High Load Vang Block & Hook

The Ronstan S30 BB Block, HHL Single Vang Key is a high-load, precision-engineered block designed specifically for vang systems and other demanding control line applications. Featuring a 30mm sheave and integrated vang key attachment, this block provides secure mounting and efficient load handling in high-performance sailing setups.

Built using premium marine-grade materials, the HHL (High Load) sheave and bearing race are manufactured from Grade 2205 stainless steel, paired with Grade 304 stainless steel ball bearings for smooth, reliable operation under heavy loads. The frame and cheeks are constructed from Grade 316 stainless steel with a durable black coating, ensuring excellent corrosion resistance and long-term durability in harsh marine environments.

Brand: Ronstan
Unit: Each
Sheave Size: 30mm
Max Rope Size: 6mm
Maximum Working Load: 400kg
Breaking Load: 800kg
Material: HHL Sheave & Bearing Race: Grade 2205 Stainless Steel
Balls: Grade 304 Stainless Steel
Frame/Cheeks: Grade 316 Stainless Steel with hard-wearing black coating
Vang Key: Grade 316 Stainless Steel
Warranty: 3 Years

• Ronstan Series 30 HHL single block with integrated vang key
• Designed for vang systems and high-load control line applications
• 30mm high-load stainless steel sheave for strength and durability
• Grade 2205 stainless steel sheave and bearing race for corrosion resistance
• Grade 304 stainless steel ball bearings for smooth operation under load
• Grade 316 stainless steel frame and cheeks with protective coating
• Secure vang key attachment for fixed mounting applications
• Suitable for rope up to 6mm diameter
• Maximum working load of 400kg
• Breaking load of 800kg
• Ideal for high-performance sailing and rigging systems