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What is the shell material of the Haoye TZ400 underwater thruster?

  • Release Time:2026-05-05
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As a high-power thruster for professional underwater operation scenarios, the Haiye TZ400’s shell material and collision resistance directly determine its reliability and service life in complex water environments. Below is a detailed explanation from three aspects: material selection, anti-collision design, and practical application performance.


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1. Core Shell Material: High-strength Titanium Alloy (TC4)

The main shell of the Haiye TZ400 underwater thruster is forged from aerospace-grade TC4 titanium alloy. The key sealed cabin and load-bearing structural parts are integrally processed with titanium alloy. As a mainstream material for deep-sea equipment, it features the following core advantages:

Ultra-high strength: TC4 titanium alloy has a tensile strength of 930MPa, far exceeding ordinary stainless steel and aluminum alloy. It can withstand underwater high pressure impact and hard object collision.

Excellent corrosion resistance: It naturally resists seawater salt spray corrosion. No rust risk for long-term use in deep sea and brackish water environments, with a service life of more than 10 years.

Lightweight & high strength: Its density is only 60% of steel. It reduces equipment weight while ensuring strength, suitable for underwater platforms such as unmanned underwater vehicles and ROVs with strict load requirements.

Full ocean depth adaptability: Titanium alloy can withstand ultra-high pressure of ten-thousand-meter deep sea. The TZ400 shell has passed ultra-high pressure simulation test without deformation or leakage.


2. Collision Resistance: Reinforced Structure + Premium Material for Heavy-duty Impact Resistance

The excellent anti-collision capability of Haiye TZ400 relies not only on titanium alloy material, but also adopts a three-layer protective structure for all-round impact resistance, coping with underwater reef collision, foreign object scraping and operation bumping.

Outer duct protection: An integrated thickened stainless steel duct is installed on the outer edge of the propeller. With high hardness and good toughness, it takes impact first and protects internal propeller blades and main body.

Titanium alloy main body impact resistance: The fuselage shell adopts thick-walled titanium alloy cylinder design. Key stress parts such as mounting base and sealed cabin interface are thickened, which can withstand frontal reef collision at 1.5m/s without crack or dent.

Magnetic coupling buffer structure: Built-in magnetic coupling drive technology absorbs impact energy through magnetic gap during collision, avoiding damage to rigid transmission structure and preventing fuselage deformation caused by foreign object jamming.


3. Practical Application Performance: Adaptable to Harsh Underwater Operation Environments

With verified material and anti-collision design through multiple scenario tests, the Haiye TZ400 is suitable for the following high-risk operations:

Marine scientific research / Deep-sea exploration: The full titanium alloy shell resists deep-sea high pressure and corrosion, and the anti-collision design avoids damage from seabed terrain collision.

Port dredging / Underwater engineering: Resists frequent scraping and impact from sediment, gravel and metal sundries with low equipment failure rate.

ROV / Unmanned underwater vehicle matching: Lightweight plus excellent collision resistance adapts to autonomous navigation in complex waters and reduces shutdown risks caused by collision.


Adopting aerospace-grade TC4 titanium alloy shell, matched with stainless steel duct and magnetic coupling buffer structure, the Haiye TZ400 underwater thruster delivers outstanding collision resistance against conventional underwater collision and scraping. Meanwhile, it features full-sea-depth corrosion resistance, high strength and lightweight advantages, making it a reliable power option for professional underwater operation scenarios.