Marine Line Thrower

About product

The marine line thrower is an essential emergency device aboard sea vessels. It consists of a waterproof shell housing a warhead, throwing rope, rocket, igniter, and throw line device. Designed for one-time use, it can be launched up to 230 meters with a launch elevation of 45 degrees and a skew of approximately 10 degrees. The throw line has a breaking tension of over 2000N. Compliance with the International Lifesaving Equipment Code, as amended by the SOLAS Convention, ensures adherence to safety requirements.

Line throwers are marine rescue products that throw a lightweight line from one location to another, typically in marine or rescue operations. It is commonly used to establish a connection between two vessels, for rescue operations, or for sending lines to shore or other fixed points.

  • Distress signaling for effective communication of assistance needed.
  • Waterproof construction for reliable functionality in marine environments.
  • Integral components like a warhead and throwing rope for launching the line.
  • Rocket assembly propels the throwing rope to a significant distance.

Additional information

Throwing Distance (In calm weather)



Range' s 10%



Breaking strength of line


Product Detail

Line Thrower For Marine Rescue Operations – Marine Rescue Products

As marine rescue products, line throwers have a specific lifespan for their components. The body and line kit are designed to last for 9 years, ensuring their reliability and effectiveness. The rocket, on the other hand, has a lifespan of 3 years. To maintain the functionality of the line thrower, spare rockets are available to replace consumed or expired ones. This ensures that the line thrower remains ready for use in emergency situations.

The Using Way Of Marine Rescue Products – Line Thrower

Here’s a general guide on how to use a line thrower :

  • Familiarize yourself with the line thrower: Read the manufacturer’s instructions and safety guidelines provided with the specific line thrower you have. Understand its features, parts, and any specific operating instructions.
  • Prepare the line thrower: Ensure that the line thrower is in proper working condition, and inspect it for any damage or wear. Make sure it is loaded with the appropriate type and length of line as recommended by the manufacturer.
  • Identify the target: Determine the location or target where you want to throw the line. Consider factors such as distance, wind direction, and any obstacles that may affect the throw.
  • Position yourself: Find a stable and secure position from where you can operate the line thrower safely. Ensure you have enough space and a clear line of sight to the target.
  • Follow safety precautions: Wear appropriate personal protective equipment (PPE) such as gloves and eye protection. Make sure there are no people or obstructions in the line of fire.
  • Aim and prepare for the throw: Hold the line thrower firmly, following the manufacturer’s grip instructions. Align the line thrower with the target and take into account any wind or current conditions that may affect the trajectory.
  • Fire the line thrower: Activate the line thrower, which will propel the line towards the target. Follow the specific firing mechanism instructions provided by the manufacturer. Be prepared for the recoil or kickback, so maintain a firm grip and brace yourself accordingly.
  • Establish connection: Once the line reaches the target, secure it to a sturdy anchor point, cleat, or other suitable attachment point. Ensure that the line is taut and securely fastened to facilitate the intended operation, such as vessel-to-vessel connection or rescue line setup.

Marine Line Thrower Features

  • Distress Signaling: The line thrower is specifically designed for distress signal purposes, allowing users to communicate their need for assistance effectively.
  • Waterproof Construction: These marine rescue products are built with a waterproof shell, ensuring its functionality and reliability even in wet and challenging marine environments.
  • Integral Components: It consists of integral components, including a warhead and throwing rope, which are essential for launching the line to a desired location.
  • Rocket Assembly: The line thrower includes a rocket assembly, which is responsible for propelling the throwing rope to a considerable distance.
  • Throw Line Device: The throw line device is incorporated into the assembly and facilitates the controlled release of the throwing rope for accurate deployment.
  • One-Time Use: The line thrower is typically designed for single-use only, ensuring that it is ready for emergency situations and eliminating concerns about reusability.
  • Launch Specifications: As a kind of marine rescue products, line throwers have specific launch specifications, such as a maximum launch distance, launch elevation, and launch skew, which determines its effective range and accuracy.
  • Throw Line Strength: The throw line has a breaking tension greater than a specified value (e.g., 2000N), providing the necessary strength to withstand the forces encountered during deployment and rescue operations.


  • Use for distress signal only.
  • Do not direct the outlet towards a person.
  • Use before the expiry date.
Know Who We Are

About our company

Zava Marine Corporation is a leading supplier of marine parts and components. With a strong focus on quality and customer satisfaction, we specialize in providing a comprehensive range of high-quality marine equipment and accessories. Our products include deck equipment, ship accessories, and various other essential components needed for smooth maritime operations.

With a global presence, we serve a diverse customer base, including shipbuilders, shipowners, offshore operators, and marine equipment distributors. We are committed to providing exceptional service and tailored solutions to meet our customers’ unique needs.


Zava Marine offers a comprehensive range of certifications for marine parts in accordance with international standards and regulations. These certifications include those provided by renowned marine classification societies such as Lloyd’s Register (LR), Bureau Veritas (BV), China Classification Society (CCS), Registro Italiano Navale (RINA), American Bureau of Shipping (ABS), Nippon Kaiji Kyokai (NK), and Det Norske Veritas – Germanischer Lloyd (DNV-GL). By collaborating with these esteemed societies, Zava Marine ensures that our certified marine parts meet the highest standards of safety, quality, and performance, instilling confidence in our reliability and compliance within the maritime industry.

The warranty provided by Zava Marine covers defects in materials and workmanship for a period of two years from the date of purchase. During this warranty period, if any marine parts purchased from Zava Marine exhibit issues or failures resulting from manufacturing defects or faulty materials, Zava Marine will take responsibility for repair or replacement of the affected parts. 

Zava Marine has recently opened new molds for European and North American clients, utilizing materials such as metal, ABS, PVC, and more. These successful mold opening projects allow us to provide customized marine parts and components that meet the specific requirements of our clients in these regions.

Typically, Zava Marine can ship samples within 7 days once the product drawing has been mutually confirmed by both parties. This efficient process ensures that customers can receive samples promptly, allowing them to assess the quality and suitability of the products.

Zava Marine frequently utilizes a wide range of materials in our projects. These materials include aluminum, stainless steel, carbon steel, copper, plastics, titanium, and PEEK (Polyether Ether Ketone). Each material offers unique properties and characteristics suitable for various marine applications. 

Yes, we provide customization services for marine parts. We understand that every project and application may have unique requirements, and we are committed to delivering tailored solutions. By collaborating closely with our clients, we can adapt our products to specific specifications, ensuring optimal fit, performance, and compatibility. Whether it’s modifying existing designs or creating entirely new parts, our customization services cater to the diverse needs of the maritime industry.

Absolutely! We offer product design and development services to support our clients’ needs. Our experienced team of engineers and designers can collaborate with clients from concept development to final product realization. By leveraging our expertise in marine engineering and design, we can provide valuable insights and innovative solutions. Whether it’s optimizing existing designs or creating entirely new products, we are equipped to assist clients in bringing their ideas to life efficiently and effectively.

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