A deep dive into the engineering collaboration between a 1200HP vessel and hydrodynamic Polyethylene (PE) nets that achieved a 95% premium catch rate in the East China Sea.
Capturing Spanish Mackerel (Scomberomorus niphonius) is one of the most demanding operations in commercial fishing. These predatory fish are fast swimmers with sharp teeth, requiring a trawling speed of at least 5.0 knots to intercept effectively.
However, traditional nylon nets create excessive drag at these speeds, causing high fuel consumption and structural failure. The friction often leads to "net blowout," where the cod end tears under pressure. Our client faced a critical dilemma: How to maintain high interception speeds without sacrificing gear durability or fuel efficiency?
To solve the drag coefficient issue, we deployed our custom-engineered Polyethylene (PE) High-Impact Trawling System. This is not a standard net; it is a hydrodynamic structure designed for speed.
We replaced standard nylon with our proprietary 384-strand Ultra-High Twist PE Twine.
| Feature | Specification | Advantage |
|---|---|---|
| Twine Diameter | 0.50 mm | Industry's thickest level for maximum abrasion resistance. |
| Impact Strength | 128 kN/m² | Certified by Zhoushan Marine Research Institute. |
| Structure | V-Shaped Belly Diversion | Reduces net-breaking rate by 90%. |
A net is only as good as the vessel pulling it. This project utilized a 38-meter Steel Axe-Bow Vessel equipped with a Weichai WH20-1200HP engine.
⚡ 1200 Horsepower Synergy: The engine delivers 1600N·m of torque, allowing the vessel to maintain a constant 5.2 knots—the critical speed threshold for catching mackerel.
🤖 Intelligent Control: An onboard Ocean Current Prediction System adjusts the vessel's heading 10 minutes in advance, while acoustic induction gathers fish within an 800-meter radius.
The implementation of this system in 2026 shattered local fishing records.
16.2 Tons
Single voyage catch, the highest in 10 years for the region.
95%
Sashimi-grade quality with zero bruises and intact silver scales.
-52%
Reduction in annual maintenance costs due to net durability.
The 0.50mm PE twine is a game-changer. We can now chase schools like a cheetah at 5.2 knots without worrying about net failure. Our net-breaking rate dropped from 40% to zero, and because the fish are handled so gently, we sell them at a 70% premium to high-end Japanese restaurants.
Whether you are targeting high-value species like Yellow Croaker and Pomfret, or battling extreme typhoon seasons, our engineering team can customize a solution for you.
GET A CUSTOM PROPOSALData Verified by: "Technical Specifications for Polyethylene Trawls Resistant to High-speed Impact" DB33/T 2288-2025
