SKU: DRFC-2477
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SunnySky V3506 KV400 Brushless Motors

₹3,919.00 (Inclusive of all taxes)
Out of Stock

The SunnySky V3506 KV400 brushless motor is engineered for long-endurance multirotor platforms, delivering high torque at low RPM for efficient, stable flight. Its 35mm stator and 400KV rating are optimized for large propellers on heavy-lift and cinematic drones.

Features

  • 35mm stator diameter and 6mm thickness for high torque and efficiency.
  • Low 400KV rating optimized for large propellers (11-15 inch) and 3-6S LiPo systems.
  • Patented stepped and knurled shaft design prevents loosening under load.
  • High-quality Japanese EZO bearings ensure smooth, quiet, and reliable operation.
  • Dynamically balanced rotor with axial/radial runout control for consistent performance (±3%).

Out of stock

Description

The SunnySky V3506 is part of the V series, specifically designed for applications demanding extended flight times and stable power delivery. Its 12-slot stator and 14-pole rotor configuration work in tandem with the low KV rating to produce substantial torque at lower rotational speeds, maximizing efficiency for heavy-lift and aerial photography platforms.

Constructed with a weight-optimized, hollow-cut motor cap, the V3506 achieves an excellent thrust-to-weight ratio without sacrificing structural integrity. The motor is rigorously tested under SunnySky’s quality control protocols, ensuring each unit meets strict dynamic balance and runout tolerances for precise and vibration-free power output.

Key Features

  • High-Efficiency Stator Design: 35x6mm (3506) stator size provides optimal magnetic flux for powerful, efficient thrust.
  • Low KV for Endurance: 400KV rating is ideal for swinging large-diameter propellers on 4S to 6S LiPo batteries for maximum flight time.
  • Anti-Loosening Shaft: Patented stepped and knurled shaft design securely locks the propeller, preventing in-flight separation.
  • Premium Bearing System: Factory-installed Japanese EZO bearings offer superior durability and smooth rotation for long service life.
  • Precision Dynamic Balancing: Each rotor is individually balanced, controlling performance variance within 3% for predictable flight characteristics.
  • Optimized Thermal Design: Motor geometry and materials promote effective heat dissipation during continuous high-load operation.

Applications

  • Heavy-lift cinematic drones for professional camera systems (e.g., RED, Sony Alpha).
  • Long-range and endurance mapping/surveying multirotor platforms.
  • Agricultural drone sprayer and payload carrier builds.
  • Large format FPV drones designed for smooth, stable aerial videography.
  • Custom multirotor builds requiring high torque and efficiency with 11-inch to 15-inch propellers.

Technical Specifications

Motor KV400 KV
Stator Size35mm x 6mm (3506)
Poles14
Slots12
No-Load Current (10V)0.3A
Motor Resistance330 mΩ
Max Continuous Current13A (for 180s)
Max Power315W
Recommended ESC20-30A
Recommended PropellersEOLO CN11x4.5, CN12x5, CN13x5, CN15x5.5
Weight84g
Body Diameter41.8mm
Body Length18mm
Shaft Diameter5mm (Standard for V Series)

Frequently Asked Questions

What is the recommended ESC for the SunnySky V3506 KV400 motor?

A 20-30A Electronic Speed Controller (ESC) is recommended for optimal performance. Ensure the ESC firmware (e.g., BLHeli_S, BLHeli_32) supports the motor's low KV and pole count, and is rated for your intended battery voltage (typically 4S to 6S LiPo).

What propellers are compatible with this 400KV motor?

This motor is designed for large, slow-flying propellers to maximize efficiency. Compatible props include the EOLO series such as CN11x4.5, CN12x5, CN13x5, and CN15x5.5. Always verify static and dynamic thrust with your specific frame and battery setup.

What is the maximum recommended take-off weight for a drone using four of these motors?

The manufacturer recommends a single motor take-off weight of ≤550g. For a quadcopter, this translates to a maximum all-up weight (AUW) of approximately 2200g. This ensures the motors operate within their peak efficiency range for extended flight times.

Does the motor shaft use a standard propeller mounting pattern?

Yes, the SunnySky V series features a standard 5mm diameter shaft with a patented stepped and knurled design for secure propeller attachment. Use appropriate M5 prop nuts or adapters. The knurling prevents the propeller from slipping during high-torque maneuvers.

Package Includes

  • 1 x SunnySky V3506 KV400 Brushless Motor

Additional Information

Weight 0.183 kg
Dimensions 12 × 9 × 5 cm