W1BS-200mm
Ship's Internal-Bound Wooden Cargo Block, also known as marine wooden pulley block, is a classic traditional rigging pulley widely adopted on merchant ships, fishing vessels and docks for cargo hoisting and rope redirecting. The block body is built with high-quality hardwood, offering good impact resistance and less damage to wire rope or fiber rope. The internal brass sheave(s) deliver smooth rope running and reduce abrasion. The galvanized forged lifting eye connects to shackles and other rigging hardware easily. The quick-release side gate allows convenient rope threading without re-rigging the whole system.
We supply single sheave and double sheave versions, multiple rated working load sizes to match different lifting demands. Marine inspection and load test certificates can be provided for shipyard and marine chandler bulk orders.
WOODEN CARGO BLOCK

| Sheave | Model | Shell height(mm) | Rope Dia.(mm) | SWL(KN) | TL(KN) | Weight(kg) |
| Single Sheave | 140 | 140 | 14~16 | 1.67 | 10 | 2.32 |
| Single Sheave | 180 | 180 | 16~18 | 2.65 | 15.89 | 3.62 |
| Single Sheave | 200 | 200 | 18~20 | 3.24 | 19.42 | 4.73 |
| Single Sheave | 220 | 220 | 20~22 | 3.92 | 23.54 | 6.48 |
| Single Sheave | 240 | 240 | 22~24 | 4.61 | 27.66 | 8.44 |
| Sheave | Model | Shell height(mm) | Rope Dia.(mm) | SWL(KN) | TL(KN) | Weight(kg) |
| Double Sheave | 140 | 140 | 14~16 | 7.75 | 15.5 | 3.69 |
| Double Sheave | 180 | 180 | 16~18 | 12.75 | 25.5 | 6.3 |
| Double Sheave | 200 | 200 | 18~20 | 15.69 | 31.38 | 8.96 |
| Double Sheave | 220 | 220 | 20~22 | 18.63 | 37.26 | 10.55 |
| Double Sheave | 240 | 240 | 22~24 | 21.58 | 43.15 | 14.18 |
Main application scenarios
● Ships and Navigation: The most essential use, used for ship rigging, deck lifting, and anchor chain operations, is an important accessory for traditional wooden ships and modern fishing vessels.
● Lifting and hoisting: In construction, warehouse handling, and mining operations, ropes are used to lift heavy objects and change direction.
● Special working conditions: Due to the non-conductive and corrosion-resistant nature of wood, it is also used for electrical operations and traction operations in humid environments.
Core strengths
★ Wooden shell is non-conductive, corrosion-resistant, and suitable for humid and electrified environments.
★ Lightweight, easy to carry and install, very suitable for outdoor work.
★ Combining traditional wooden craftsmanship with metal reinforcement, balancing aesthetics and strength.
General service life (outdoor/marine environment+normal maintenance)
Lifespan range: 8-15 days
Core reason: Salt spray, rainwater, and especially seawater used for offshore operations can accelerate metal corrosion and wood moisture deformation. It is necessary to perform waterproof/anti-corrosion treatment every year, otherwise the service life will be significantly shortened.
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The DF-274-5 2 DOG RAISED WATERTIGHT HATCH is a premium marine deck fitting engineered by HEE (Changshu HaiChuan Engineering & Equipment Co., Ltd.), a leading China-based manufacturer specializing in marine and offshore equipment. Designed to address the critical need for reliable water resistance in harsh marine environments, this hatch serves as a protective barrier for deck openings, preventing water ingress, dust accumulation, and corrosion that could damage internal components of vessels, offshore platforms, or port infrastructure.
