30-Ton Marine A-Frame
The OUCO 30-Ton Marine A-Frame is a high-performance lifting solution engineered for specialized maritime operations, offering distinct advantages over conventional marine cranes. Designed with a Safe Working Load (S.W.L.) of 300 kN (30 tons) at the gantry lifting point and a dynamic amplification coefficient of 1.3, this A-frame ensures stability and safety under dynamic sea conditions, such as Sea State 4 (wave heights up to ~2 meters). Its robust construction features a center distance between columns of 8 meters, providing ample space for handling large equipment, while the height from the bottom of the pulley to the deck reaches 6.5 meters at +45° and an offboard span of 4.5 meters at -30°, enabling extensive outreach for outboard operations without compromising deck space. Unlike conventional cranes, which typically offer horizontal rotation, the A-frame operates primarily in a vertical plane, allowing for precise load positioning in confined areas and reducing pendulum motion during critical tasks like ROV deployments, deep-sea sampling, or heavy module installations.
Product Pictures
| Parameter | Value |
| S.W.L | 300 kN |
| Dynamic amplification coefficient | 1.3 |
| Center distance between columns | 8 m |
| Height from the bottom of the pulley to the deck | 6.5 m (+45°) |
| Offboard span | 4.5 m (-30°) |
| Swing speed during working | 0.5°/s (Offboard to onboard) |
| A-Frame swing | 75° |
| Working condition (sea state) | 2 |
| Control way | Local control |
| Working temperature | -10℃ ~ +45℃ |
Product Picture
Company Overview
Founded in 1984, OUCO INDUSTRY is a leading manufacturer and supplier of high-quality marine equipment, specializing in cranes, lifting systems, and material handling solutions. With over 40 years of experience, we are known for delivering innovative and reliable products that meet the specific needs of the maritime industry. Our products are trusted by clients worldwide, including those in the luxury yacht, offshore, port, and industrial sectors.
Located in Jiangsu Province, China, our state-of-the-art manufacturing facility spans 48,000 square meters and is equipped with advanced machinery and a team of over 150 skilled professionals. We are committed to ensuring that every product we deliver is engineered to the highest standards of quality, performance, and safety.
