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Advanced Underwater Boosters & Sea Scooters

Changzhou KuoRui International Trading Co., Ltd. delivers high-performance underwater propulsion systems for scuba diving, marine exploration, and recreational water sports. Engineered for reliability, power, and efficiency.

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30+ Models

Wide range of underwater scooters and boosters for every diving need

Global Export

Trusted by customers in over 30 countries worldwide

ISO Certified

Manufacturing excellence and quality assurance

About KuoRui

Changzhou KuoRui International Trading Co., Ltd. is a leading manufacturer and exporter of underwater propulsion systems, specializing in underwater boosters, sea scooters, and scuba diving equipment. With years of engineering expertise, we serve diving professionals, marine researchers, and water sports enthusiasts around the globe.

Our products are designed for maximum thrust, extended battery life, and rugged durability in saltwater and freshwater environments. From compact personal boosters to high-torque models for technical diving, KuoRui delivers performance you can trust.

High-efficiency brushless motors
Waterproof up to 40 meters depth
Lithium-ion battery with fast charging
Ergonomic design for easy handling
KuoRui Underwater Booster

Our Products

Discover our range of high-performance underwater boosters and sea scooters, engineered for power, endurance, and reliability in all diving conditions.

KR-200 Underwater Booster

KR-200

Compact Underwater Booster

  • Thrust: 20 kg
  • Battery: 24V 10Ah Li-ion
  • Max Speed: 3.5 knots
  • Depth Rating: 40m
  • Weight: 4.8 kg
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KR-350 Pro Sea Scooter

KR-350 Pro

Professional Sea Scooter

  • Thrust: 35 kg
  • Battery: 48V 15Ah Li-ion
  • Max Speed: 5.2 knots
  • Depth Rating: 40m
  • Runtime: 90 mins
View Details
KR-150 Mini Booster

KR-150 Mini

Lightweight Personal Booster

  • Thrust: 15 kg
  • Battery: 24V 6Ah Li-ion
  • Max Speed: 2.8 knots
  • Depth Rating: 30m
  • Weight: 3.2 kg
View Details
KR-500 Dual Motor

KR-500 Dual

Dual Motor Underwater Scooter

  • Thrust: 50 kg (dual motors)
  • Battery: 48V 20Ah Li-ion
  • Max Speed: 6.0 knots
  • Depth Rating: 40m
  • Runtime: 120 mins
View Details
KR-250 Dive Companion

KR-250 Dive

Dive Companion Booster

  • Thrust: 25 kg
  • Battery: 36V 12Ah Li-ion
  • Max Speed: 4.0 knots
  • Depth Rating: 40m
  • Weight: 5.1 kg
View Details
KR-300 Explorer

KR-300 Explorer

Long-Range Sea Scooter

  • Thrust: 30 kg
  • Battery: 48V 18Ah Li-ion
  • Max Speed: 4.8 knots
  • Depth Rating: 40m
  • Range: 8 km
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KR-180 Youth Model

KR-180 Youth

Youth & Training Booster

  • Thrust: 18 kg
  • Battery: 24V 8Ah Li-ion
  • Max Speed: 3.0 knots
  • Depth Rating: 20m
  • Lightweight design
View Details
KR-400 Technical Diver

KR-400 Tech

Technical Diving Scooter

  • Thrust: 40 kg
  • Battery: 48V 16Ah Li-ion
  • Max Speed: 5.5 knots
  • Depth Rating: 40m
  • Advanced control system
View Details

Why Choose KuoRui?

Our underwater propulsion systems combine cutting-edge engineering with real-world performance for divers and marine professionals.

High Torque Motors

Brushless DC motors deliver consistent power and efficiency even under load.

Long Battery Life

High-capacity lithium-ion batteries with fast charging and low self-discharge.

IP68 Waterproof

Fully sealed housing rated for depths up to 40 meters in saltwater.

Durable Build

Aircraft-grade aluminum and reinforced polymer construction for impact resistance.

30+
Product Models
40m
Max Depth Rating
120
Minutes Max Runtime
30+
Countries Served

Frequently Asked Questions

What is the maximum depth rating for KuoRui underwater boosters?

Most KuoRui models are rated for depths up to 40 meters (130 feet), making them suitable for recreational and technical diving applications.

How long does the battery last on a full charge?

Battery life varies by model and usage. Compact models like the KR-150 offer 45-60 minutes, while larger models like the KR-500 Dual can provide up to 120 minutes of continuous operation.

Are KuoRui sea scooters suitable for saltwater use?

Yes, all KuoRui underwater boosters are designed for both saltwater and freshwater environments. They feature corrosion-resistant materials and sealed housings to withstand marine conditions.

Do you offer OEM/ODM services?

Yes, Changzhou KuoRui International Trading Co., Ltd. provides OEM and ODM services for bulk orders. We can customize branding, specifications, and packaging according to client requirements.

What certifications do your products have?

Our manufacturing processes follow ISO quality standards. Products undergo rigorous testing for waterproofing, electrical safety, and performance reliability.

How do I maintain my underwater booster?

After each use, rinse the unit with fresh water and allow it to dry completely. Store in a cool, dry place. Regularly inspect seals and connections, and follow the maintenance schedule in the user manual.

Get in Touch

For product inquiries, bulk orders, or technical support, please visit the official KuoRui website.

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