APAMA NRS
Repairs Nets Faster, Safer, Smarter
Industry Challenges
Fish Pen and Cage Vulnerabilities
Damage to fish pens and cages can lead to fish escapes, resulting in both financial losses and environmental impact.
Need for Regular Inspections
Consistent inspections are vital to ensure the integrity of nets and prevent escape events, a key challenge in maintaining aquaculture operations.
Current Practices
Existing market solutions for fishnet inspection and repair often rely on expensive methods, such as net removal or diver intervention.
Meet the APAMA – ROV
Net Repair System
PATENT PENDING
The APAMA Net Stitcher is a cutting-edge ROV designed for underwater net repair. It features the most advanced control on the market with 6-degrees of freedom, and a hybrid power system for efficiency. The APAMA offers in situ and continuous net repair, and despite its compact size, it boasts high power and versatility for various aquaculture tasks, ensuring operational excellence underwater.
| Specification | Details |
|---|---|
| Size | 1000mm Long, 685mm Wide, 508mm Tall |
| Thrusters | Vectored 8 Degrees of thrust with both world and ROV coordinate operation capabilities |
| Camera | 1080p 30 FPS explore HD 3.0 (400m) Underwater ROV/AUV USB General Vision Camera |
| Power Input | The Apama is powered by a dual power system to provide solid redundancy. It carries an onboard 432Wh battery and an external 240V AC to 160V DC topside power supply. This allows the Apama to operate purely off topside power or entirely off battery power. |
| Bouyancy | High-density foam |
| Speed | 1.5 meters/second, 3 knots |
| Weight | 40kg in air, slightly positive in water |
| Lighting | 4 x 1500 Lumen Lights |
Environmental Sustainability
With a strong focus on preventing fish escapes, SoSub’s solution plays a crucial role in promoting sustainable aquaculture practices and ecosystem protection.
Vectored six degrees of freedom
Equipped with a vectored six degrees of freedom (6 DoF) layout, the Apama can fly however efficiently regardless of its orientation, allowing it to navigate complex underwater environments with precision and ease.
Advanced Control System
Featuring the market’s leading 6DoF control system, our ROV offers unique world coordinate and ROV coordinate base movement, offering unparalleled control.
Fast On-Demand Inspection
300m Depth Rating
The Apama is built and ready to go to 300m out of the box, making it perfect for any aquaculture environment.
Adaptability to Harsh Conditions
Innovative Design
Modular design for easy maintenance and seamless upgrades, minimising downtime. Interchange parts effortlessly, ensuring your ROV fleet remains cutting-edge without full replacements.
Excellent Tooling Capabilities
With the modular skid, tooling can quickly be taken of or added removed to suit your needs.
Safety and Efficiency
This system effectively eliminates risks associated with diver-based repairs, creating a safer working environment.
Commitment to Sustainability
As stewards of the ocean, SOSUB and the APAMA ROV uphold practices that honour and preserve the marine ecosystem.
REPAIR RATE
5 to 30 x 1 BAR
HOLES/HOUR
Industry Challenges
Versatile Repair Size
The Net Stitcher can repair various sizes of damage in nets, from small punctures to extensive tears, maintaining structural integrity. It allows for effective underwater repairs, reducing the need for net replacement and operational downtime.
Innovative Repair Mechanism
At the heart of the Net Stitcher’s functionality is a suite of subsea tools including a stapler, cutter, and winch. This combination allows for a robust and efficient repair process:
- Subsea Stapler and Cutter: These tools facilitate the attachment of a durable, Kevlar-reinforced polyurethane repair material to the damaged area of the net. The cutter is then used to trim the repair material precisely, ensuring a neat and secure repair.
- Winch System: The winch is employed to tension the repair material, pulling it tightly across the damaged area. This step is critical for ensuring that the repaired section is as secure and as close to its original shape as possible.
Repair Process
The repair process involves the Net Stitcher applying material in a zig-zag pattern across the damage, securing it with staples for reinforcement. Excess material is trimmed after the entire section is repaired, ensuring a neat and structurally sound outcome. Net Stitcher Features
| Specification | Details |
|---|---|
| Staple Material | Stainless steel |
| Staple Payload | 100 Staples |
| Repair Material Payload | 30m Roll |
| Winching Force | 50kgF |
| Breaking Strain | 110kgs |
| Repair Material | Polyurethane Coated Kevlar |
Proof of Concept
Over years, eight APAMA prototypes were created using CNC machining and 3D printing, demonstrating innovation and sustainability without high costs.
Trusted by Industry Leaders
Our facilities are trusted by global aquaculture operators, marine infrastructure developers, and subsea innovators who rely on precision and reliability.
Your Questions Answered
Q. How long does the battery last?
A. Our ROV is a hybrid system, so we have an onboard battery that gets charged through the ROV’s tether, allowing indefinite use. The ROV can also run on battery only for up to 2 hours depending on use.