50cm Ball Shape Inflatable PVC Big Bumper
50cm ball shape PVC inflatable bumper with soft durable construction, UV and corrosion resistance. Easy to inflate and deflate, ideal for boat protection, temporary anchor marking and water activities.
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8.5cm Throwing Ball For Heavy Mooring Rope
● Designed for large commercial vessels with heavy mooring lines, the compact 8.5cm throwing ball is easy to handle and deploy in all conditions.
● Filled with water to reach approximately 335g, it provides accurate and long-distance throwing performance for efficient mooring operations.
● Made from durable marine-grade materials, it withstands repeated impact and saltwater exposure for reliable long-term use.
Key Features & Advantages
Optimal 8.5cm Size
Compact hand-size design ensures comfortable grip and accurate throws in windy conditions.
Water-Fillable Weight
Fill with water to reach 335g, providing the ideal weight for accurate long-distance throws.
Precision Throw
Aerodynamic design and optimal weight enable accurate long-distance throws to shore personnel.
Marine-Grade Durability
Built with saltwater-resistant materials to withstand impacts, UV exposure, and harsh handling.
Easy Rope Attachment
Designed for quick rope attachment, ensuring reliable pulling force transfer to heavy mooring lines.
Solution for Heavy Lines
Designed for heavy mooring lines, the ball-and-rope system easily bridges ship and shore.
Engineered for Marine Protection
Smart Weight-on-Demand Design
The throwing ball’s innovative water-fillable design means it remains lightweight and easy to store when empty, yet achieves the perfect throwing weight of approximately 335 grams when filled — no heavy equipment to carry, no permanent ballast to manage.
- Empty ball is lightweight for easy storage and transport on board
- Fill with readily available seawater or fresh water before use
- 335g filled weight provides optimal balance of distance and accuracy
- Aerodynamic spherical shape ensures stable flight trajectory
- Quick-drain design allows easy emptying after use
The Complete Mooring Line Solution
Designed specifically for the challenge of heavy mooring lines on commercial vessels, the throwing ball creates a simple but effective bridge between ship and shore — turning an impossible direct throw into a controlled, three-step deployment process.
- Solves the problem of throwing heavy mooring lines that cannot be thrown directly
- Light messenger rope links the ball to the heavy mooring line securely
- Allows shore-side crew to pull heavy lines into position with minimal effort
- Reduces risk of line drops and failed mooring attempts
- Improves efficiency and safety of commercial docking operations
Technical Specifications
| Type | Size (cm) | Diam. (mm) | Weight (g) | Waterfilled | Carton Meas. (CM) | Cbm | Case Package | N.W /Ctn (Kgs) | G.W /Ctn (Kgs) | Eye Diam (mm) | Circum (mm) | |||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| L | W | H | Qty. | Unit | ||||||||||
| MB8 | D 8.6cm | 90 | Ball: 120 Inject water: 225 |
Yes | 45 | 19 | 19 | 0.02 | 20 | pcs | 2.5 | 3.5 | 11 | 86 |
| CERTIFICATIONS：CE / ROHS / FCC / SGS | ||||||||||||||
Application scenarios
Heavy Mooring Line Deployment
For large vessels with heavy mooring lines, the throwing ball enables safe and efficient line transfer.
Precision & Long Distance
Filled with water, the ball reaches about 335g — ideal for precise long-distance throws.
Shore-Side Line Transfer
Tie the ball to a light rope and heavy mooring line, then throw it ashore for quick and safe line transfer.
Factory production process
Why Choose Us?
With professional manufacturing experience and strict quality control, we provide reliable marine inflatable products with flexible customization, stable performance, and dependable support for global customers.
Quality Materials
High-quality PVC materials provide excellent strength, weather resistance, and long-lasting performance in marine environments.
Custom Solutions
We offer flexible customization in size, color, logo, and structure to meet different application and project requirements.
Certified Standards
CE, RoHS, and SGS-related quality requirements help ensure product safety, reliability, and compliance with international markets.
Reliable Delivery
Efficient production management ensures consistent quality, timely delivery, and reliable cooperation for every order.
Get in Touch
We are a professional manufacturer specializing in marine fender systems and dock protection solutions. With years of experience, we deliver reliable products to clients worldwide.
✔ Marine-grade materials
✔ OEM & ODM support
✔ Fast global delivery
✔ Professional technical support
Tell us your requirements — we will respond within 24 hours.
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