5085 Solid Shaft Marine Motor – 2.8kW | 15kg Thrust | 82% Efficiency for Rescue Boat & Unmanned Ship
High-efficiency solid shaft brushless motor with IP67 waterproof rating. Designed for water rescue ships, unmanned surface vessels (USV), and marine thrusters. Lightweight 770g design.
-KEY FEATURES
• IP67 fully waterproof – Suitable for marine and underwater operation
• Solid shaft design – Direct propeller mounting, no adapter needed
• 2.8kW peak power – Higher power than 53105 for same weight class
• 9.52 N·m stall torque – Strong thrust for quick response
• 15kg maximum thrust – Ideal for rescue and unmanned vessels
• 20-60V wide voltage range – Compatible with 6S to 14S batteries
• 82% peak efficiency – Excellent energy conversion for extended runtime
• Ultra-lightweight 770g – 43% lighter than 53105
• High torque density – 12.4 N·m per kg
• CW/CCW bidirectional – Forward and reverse thrust capability
• Locked rotor protection – Prevents damage during stall
• 3000+ hour lifetime – Reliable for rescue missions-
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隐藏域元素占位
- Product Description
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规格参数 SPECIFICATION 型 号
Mode重 量
Weight电压
Voltage无负荷
No load最大效率点
At Maximum Efficiency堵转
At stall电压范围
Voltage Range额定值
Nominal转速
电流
转速
电流
转矩
输出功率
效率
转矩
电流
Speed
Current
Speed
Current
Torque
Output
Efficiency
Torque
Current
G
V
V
r/min
A
r/min
A
mN.m
W
%
mN.m
A
5085
770
20-60
36
10000
2.7
6000
60
3120
1960
82
9520
100
OUTLINEDRAWING
⚙️ Solid Shaft | Marine Propulsion Series5085 Solid Shaft Marine Motor
2.8kW | 15kg Thrust | 82% EfficiencyHigh-efficiency solid shaft brushless motor with IP67 waterproof rating. Designed for water rescue ships, unmanned surface vessels (USV), and marine thrusters. Lightweight 770g design.
2.8kWMax Power15kgMax Thrust20-60VVoltage Range770gMotor WeightTechnical SpecificationsModel5085Shaft TypeSolid ShaftMotor TypeBrushless DCVoltage Range20 – 60V DCRated Voltage36VNo-Load Speed10,000 RPMNo-Load Current2.7 ARated Speed6,000 RPMRated Current60 ARated Torque3.12 N·mRated Power1.96 kWMax Efficiency82%Stall Torque9.52 N·mStall Current100 AMotor Weight770 gWaterproof RatingIP67Performance Highlights9.52 N·mStall Torque (9,520 mN·m)2.8 kWPeak Power82%Maximum Efficiency15 kgMaximum ThrustKey CharacteristicsIP67 WaterproofFully submersible designSolid ShaftDirect propeller mounting2.8kW Peak PowerHigh output for marine apps82% EfficiencyExcellent energy conversion20-60V Wide Voltage6S to 14S Li-ion compatibleCW/CCWBidirectional rotationLocked Rotor ProtectionStall protection built-inLong Life3000+ hours ratedPerformance Test DataTest condition: 36V input, ambient temp 25°C, with 3-blade marine propellerParameter
No Load
Max Efficiency
Rated
Stall
Speed (RPM) 10,000 7,500 6,000 0 Current (A) 2.7 40 60 100 Torque (N·m) 0 2.2 3.12 9.52 Power (kW) 0 1.73 1.96 0 Efficiency (%) 0 82 80 0 * With proper propeller matching, the motor delivers 15kg thrust at peak power (2.8kW).
Model Comparison: 5085 vs 53105Choose the right motor for your applicationParameter
5085 Solid Shaft
53105
2.8kW 2.5kW 15kg 15kg 9.52 N·m 9.27 N·m 1.96kW @ 6000 RPM 1.44kW @ 5200 RPM 770g 1200g Solid Shaft Hollow / Standard Weight Advantage 43% lighter - Best For Lightweight USV, rescue boats Heavy-duty applications Key Features- IP67 fully waterproof – Suitable for marine and underwater operation
- Solid shaft design – Direct propeller mounting, no adapter needed
- 2.8kW peak power – Higher power than 53105 for same weight class
- 9.52 N·m stall torque – Strong thrust for quick response
- 15kg maximum thrust – Ideal for rescue and unmanned vessels
- 20-60V wide voltage range – Compatible with 6S to 14S batteries
- 82% peak efficiency – Excellent energy conversion for extended runtime
- Ultra-lightweight 770g – 43% lighter than 53105
- High torque density – 12.4 N·m per kg
- CW/CCW bidirectional – Forward and reverse thrust capability
- Locked rotor protection – Prevents damage during stall
- 3000+ hour lifetime – Reliable for rescue missions
Applications🛟 Water Rescue Ship 🚢 Unmanned Surface Vessel (USV) 🌊 Marine Thruster 🔍 Underwater Inspection ROV 🎣 Fishing Boat Trolling Motor 🚤 Small Electric Boat 📡 Autonomous Research Vessel 🛥️ Kayak / SUP PropulsionOEM Customization- KV customization – 150KV to 600KV available
- Voltage optimization – 24V / 36V / 48V / 60V
- Shaft diameter and length modification
- Solid shaft keyway or flat customization
- Waterproof connector type (SubConn, custom)
- Propeller mounting thread customization
- Hall sensor integration for FOC control
- IP rating upgrade (IP68)
Frequently Asked QuestionsWhat is the maximum thrust of this motor?The 5085 delivers 15kg maximum thrust with proper propeller selection, ideal for rescue ships and unmanned vessels.What makes solid shaft different from standard shaft?Solid shaft provides direct propeller mounting without adapters, offering better torque transmission and reliability for marine applications.What voltage battery is recommended?36V (10S) is recommended for optimal performance. The motor supports 20-60V, compatible with 6S to 14S Li-ion systems.How does 5085 compare to 53105?5085 delivers higher power (2.8kW vs 2.5kW), higher efficiency (82% vs 80%), and is 43% lighter (770g vs 1200g). Best for lightweight USV and rescue boats.What controller is recommended?We recommend a 36V-48V 80A-100A FOC controller with waterproof enclosure for marine applications.What is the expected motor lifetime?With proper cooling and maintenance, the motor provides 3000+ hours of reliable operation.
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