JIS F3422-1995 Standard - Compliant Ships Snatch Blocks

✨ Core product features

1. High strength heavy-duty structure with full safety factor

· Thickened carbon steel integrated molding: The pulleys, clamps, and connecting rings are all forged/welded from high-strength carbon steel, which has high overall strength, impact resistance, and deformation resistance, and can withstand long-term heavy load impacts on the ship deck.

· Multi bolt locking design: The pulley clamp is fixed with multiple high-strength bolts, paired with anti loosening nuts and split pins for dual anti loosening, to eliminate the risk of bolt loosening and clamp cracking during heavy load operations.

· Redundant design of safety factor: All pulleys are designed according to marine standards, with a rated load safety factor of ≥ 4 times. Before leaving the factory, they undergo a 1.25 times rated load tensile test to ensure operational safety.

2. Low friction and wear-resistant pulley system, extending the service life of steel cables

· Optimization design of pulley groove: The pulley rope groove is precision machined to have a high degree of fit with the steel cable, reducing the deformation caused by steel cable compression and lowering the wear rate.

· Built in wear-resistant bearings: The pulley shaft is equipped with wear-resistant copper sleeves/rolling bearings, which have low rotational resistance and smooth steel cable retraction, greatly reducing human/equipment driving load.

· Anti stripping rope clamp structure: The gap between the clamp and the pulley is precisely controlled, and combined with the anti stripping rope baffle design, it eliminates the risk of steel cable jumping and rope detachment, and improves the safety of operations.

3. Marine grade anti-corrosion technology, suitable for harsh marine environments

· Multi layer anti rust and anti-corrosion coating: The surface is treated with multiple layers of rust removal, phosphating, primer, and topcoat, using marine grade anti rust paint, which can resist the corrosion of seawater salt spray and humid air, and is not easy to rust or peel off after long-term use.

· Anti rust upgrade of key components: The connection shackles, pin shafts, and fasteners are all made of galvanized/stainless steel materials to reduce the risk of corrosion in marine environments and ensure long-term stable operation of the equipment.

· Fully enclosed anti rust bearings: The bearing part adopts a sealed design to isolate seawater and dust from entering, avoid bearing jamming and corrosion, and extend the equipment maintenance cycle.

4. Modular connection design, adaptable to various job scenarios

· Standard connection shackle: equipped with high-strength marine shackle, can be directly connected to steel cables, lifting rings, and winches, easy to install, and suitable for various lifting schemes.

· Customized connection solution support: Our design team can customize different specifications of lifting rings, shackles, and chain connection methods according to customer needs, adapting to different installation scenarios such as ship decks, crane ships, platforms, etc.

· Openable clamp design: Some models are equipped with openable clamps, which can quickly thread ropes without dismantling steel cables, suitable for temporary lifting and emergency operation scenarios, and improve work efficiency.

✨ Haichuan Factory&Design Team Core Advantages

1. Self owned factory full process control, dual guarantee of quality and delivery time

Independent production and manufacturing: From steel plate cutting, forging, welding, machining to spraying and assembly, the entire process is independently completed, strictly controlling the quality of each process and rejecting quality fluctuations caused by outsourcing.

Factory inspection process: Each pulley undergoes tensile testing, anti-corrosion performance testing, and pulley rotation testing before leaving the factory, and a complete factory inspection report is issued to ensure that the equipment meets marine equipment standards.

Batch delivery capability: The factory is equipped with multiple production lines, which can undertake bulk orders and support small batch customization. The delivery time is stable, and there is no need to worry about the risk of supply interruption.

2. Professional ship equipment design team, customized as needed without threshold

★ One on one design service: A team of engineers with years of experience in ship equipment design can provide customized solutions based on customer operational requirements (rated load, cable diameter, installation space, connection method).

★ Full parameter customization support: can customize rated load (1T-50T), pulley diameter, rope groove size, connection ring specifications, surface coating schemes, etc., to meet the diverse needs of different ships and marine engineering.

★ Full process technical support follow-up: from early requirement communication and scheme design, to later installation guidance and after-sales maintenance, our technical team follows up throughout the process and provides professional technical support.

3. Scenario based adaptation solution, covering all operational requirements

Fishing boats/small vessels: Suitable for deck cargo lifting and anchor chain guidance operations, with a compact structure and easy installation, it is an ideal match for small vessel lifting operations.

Engineering ship/crane ship: As the guiding pulley of the lifting system, it optimizes the force path of the steel cable, improves lifting efficiency, reduces steel cable wear, and is suitable for long-term heavy load operations.

Port/Terminal Operations: Used for cargo lifting, ship mooring assistance, quick installation and disassembly, adaptable to different lifting scenarios, flexible and practical.

Marine engineering platform: adapted to platform equipment traction, material transportation, anti-corrosion and durable, can withstand harsh marine environments, and operate stably for a long time.

✨ Product specifications and dimensions

✨ After sales and service guarantee

◆ Professional installation guidance: Provide detailed installation instructions, engineers can remotely guide installation and debugging to ensure the normal operation of the equipment.

◆ Quality assurance service: In the event of non-human damage, we provide quality assurance services for the core components of the equipment to solve customers' worries.

◆ Customized technical support: If you need to adjust equipment parameters or adapt to new work scenarios, our design team can provide secondary optimization solutions