Vector Technics 4006 SL 440KV Brushless Drone Motor for UAV
The Vector Technics 4006 SL 440KV is a lightweight brushless outrunner motor for multirotor drones and UAVs, designed and made in India by Vector Technics (Bengaluru). At 67 g it delivers up to 280 W continuous for 180 s on a 6S (22–25 V) battery and swings 13–16 inch propellers, which suits efficient mid-size quadcopters, hexacopters, mapping and agricultural spraying research platforms.
Key features
440 KV low-KV winding: about 10,560 RPM no-load at 24 V (calculated), ideal for large, efficient propellers.
High power density: 3.14 W/g rated and 5.96 W/g maximum (manufacturer figures).
6S ready: 22–25 V operating range with 0.6 A no-load current at 24 V.
18S24P configuration: 18 stator poles and 24 magnet poles for smooth, high-torque operation.
Dual 619/4-2RS sealed ball bearings and a 4 mm stick-out shaft.
Compact 4006 size: Ø44.6 × 20 mm with a standard 4 × M3 on Ø25 mm motor mount.
Made in India by Vector Technics, Bengaluru.
Technical specifications
Parameter | Value |
Model | Vector Technics 4006 SL 440 KV (multirotor outrunner) |
KV (velocity constant) | 440 RPM/V |
Kt (torque constant) | 0.022 N·m/A |
No-load speed | ≈ 10,560 RPM at 24 V (calculated, KV × V) |
Voltage range | 22–25 V (6S LiPo) |
No-load current (Io) | 0.6 A at 24 V |
Max continuous current | 12 A (180 s) |
Max continuous power | 280 W (180 s) |
Power density | 3.14 W/g rated · 5.96 W/g maximum |
Phase inductance | 0.09 mH ±5% |
Configuration | 18S24P (18 stator / 24 magnet poles) |
Bearings | Dual 619/4-2RS sealed ball bearings |
Shaft | Ø4 mm stick-out |
Dimensions | Ø44.6 × 20 mm |
Weight | 67 g ±2 g (motor only) |
Motor mount | 4 × M3 on Ø25 mm PCD, 90°, 2.5 mm deep |
Propeller mount | 4 × M3 on Ø12 mm PCD, 3 mm deep |
Compatible propellers | 13–16 inch |
Country of origin | India |
Specifications are from the Vector Technics product page; values marked calculated are derived from those figures. Use the official datasheet for detailed mechanical design.
Dimensions and mounting
Recommended 6S propulsion setup
Battery: 6S LiPo, 22.2 V nominal (22–25 V range).
ESC: a 6S-rated ESC of 30 A or more is our sizing suggestion (about 2.5× the 12 A continuous rating), not a manufacturer requirement.
Propeller: 13–16 inch, in CW/CCW pairs for multirotors.
Typical applications
Mid-size quadcopters and hexacopters on 6S
Survey, mapping and remote-sensing UAVs
Agricultural and pesticide-spraying research drones
University and R&D propulsion test benches
Long-endurance builds that favour large, slow-turning propellers
Frequently asked questions
What battery does the 4006 SL 440KV need?
It is rated for 22–25 V, which is a 6S LiPo pack (22.2 V nominal).
What propeller size fits this motor?
The manufacturer lists 13 to 16 inch propellers.
How much thrust does it make?
Vector Technics has not published a full thrust table on the product page; its launch post mentions about 2 kg per motor, without stating the propeller or voltage. Contact us for test data for your propeller.
How much does it weigh?
67 g ±2 g for the motor alone.
Is it made in India?
Yes. It is designed and manufactured by Vector Technics in Bengaluru, India.
Is the price inclusive of GST?
Yes. ₹12,380 per motor includes GST, and a GST invoice is issued with every order dispatched from Hyderabad.
Do you supply in bulk or for export?
Yes. We quote multi-motor sets for universities and businesses in India and abroad. Contact RoboTechMinds for a formal quotation.
Sold by RoboTechMinds (Moksha AI & Research Labs Pvt Ltd), Hyderabad, India.