KDE Direct DPA-ML-M4 Propeller Blade Adapter, Dual-Edition - AL7075-T6

Name: KDE Direct DPA-ML-M4 Propeller Blade Adapter, Dual-Edition - AL7075-T6
Brand: KDE Direct
SKU: DRFC-1523
Price: 2869.00 INR
Availability: OutOfStock

₹2,869.00 (Inclusive of all taxes)

Out of Stock

The KDE Direct DPA-ML-M4 Dual-Edition Propeller Blade Adapter is a CNC-machined, aerospace-grade AL7075-T6 upgrade for professional UAS multi-rotor motors, featuring an M4 screw upgrade and mechanical lock system for secure, vibration-free blade mounting.

Features

Upgraded M4 propeller screw size for enhanced strength and stability over M3.
Constructed from aerospace-grade AL7075-T6 aluminum and Class 12.9 alloy steel hardware.
Innovative mechanical lock design with M4 CubePilot jam-nuts and Belleville spring washers.
CNC-balanced folding-propeller assembly minimizes vibrations for smooth operation.
Compatible with KDE Direct UAS motors and adaptable to other motors with dual- or quad-M3 x 12mm threads.

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Description

The KDE Direct DPA-ML-M4 Dual-Edition Propeller Blade Adapter represents a significant engineering upgrade for professional UAV propulsion systems. Its core design philosophy centers on replacing the standard M3 propeller screw with a robust M4 interface, dramatically increasing the shear strength and clamping force to prevent blade slippage under high-torque conditions.

Precision CNC machining from AL7075-T6 billet aluminum ensures dimensional accuracy and structural integrity, while the integrated mechanical lock system—comprising CubePilot jam-nuts and Belleville spring washers—maintains consistent pre-load without requiring frequent adjustments. This combination delivers a reliable, low-maintenance connection between motor and carbon-fiber propeller, critical for demanding commercial and industrial flight operations.

Key Features

Aerospace-Grade AL7075-T6 Construction: Offers the highest strength-to-weight ratio for aluminum alloys, ensuring durability and fatigue resistance.
M4 Propeller Screw Upgrade: Increases thread engagement and clamping surface area for superior blade retention compared to M3 standards.
Mechanical Lock System: Utilizes M4 CubePilot jam-nuts and Belleville spring lock washers to maintain secure blade pressure and resist loosening from vibration.
CNC-Balanced Assembly: Precision machining of all components minimizes mass imbalance, leading to smoother motor operation and reduced frame vibrations.
High-Strength Class 12.9 Hardware: All screws and nuts meet the highest metric strength class for maximum safety and reliability.
Universal Mounting Compatibility: Adapts to motors with dual- or quad-M3 x 12mm mounting patterns, extending use beyond KDE's own motor series.
Optimized for Carbon-Fiber Blades: Designed specifically for secure mounting with KDE Direct UAS carbon-fiber propeller blades.
Low-Maintenance Design: Engineered to hold calibration over multiple flights, reducing the need for disassembly and re-tightening.

Applications

Heavy-lift and industrial multi-rotor UAVs requiring secure, high-torque propeller mounting.
Upgrading KDE Direct UAS series brushless motors for enhanced blade retention and safety.
Professional cinematography and surveying drones where vibration reduction is critical for sensor stability.
Custom UAS builds utilizing motors with dual or quad M3 x 12mm mounting patterns.
Applications demanding low-maintenance hardware that maintains calibration over extended flight cycles.

Technical Specifications

Item Type	Propeller Blade Adapter
Material	Aluminum 7075-T6, Class 12.9 Alloy Steel
Adapter Type	Dual-Edition (Lower Base & Upper Plate)
Propeller Screw Size	M4
Mounting Thread Compatibility	Dual- or Quad-M3 x 12 mm
Locking Mechanism	M4 CubePilot Jam-Nuts with Belleville Spring Washers
Weight	14.7 g
Shipping Weight	0.044 kg
Shipping Dimensions	8 x 6 x 2 cm

Frequently Asked Questions

What motors is this DPA-ML-M4 adapter compatible with?

It is designed for KDE Direct UAS Multi-Rotor Brushless Motors but is also adaptable to any motor with dual- or quad-M3 x 12mm mounting threads. The adapter plates interface with these standard motor mounting patterns, while the upgraded M4 screws secure the propeller blades themselves.

How does the mechanical lock system work to prevent blades from loosening?

The system uses M4 CubePilot jam-nuts combined with Belleville spring lock washers. The spring washers apply a consistent axial force, maintaining tension on the propeller blade root. The jam-nuts are then tightened against this pre-load, creating a vibration-resistant mechanical lock that is far more secure than a standard nut and flat washer.

Why upgrade from M3 to M4 propeller screws?

The M4 screw upgrade significantly increases the shear strength and thread engagement area. This provides greater clamping force on the propeller blade, preventing slippage and rotation under the high torque loads generated by large multi-rotor motors. It is a critical upgrade for safety and reliability in professional and heavy-lift applications.

What is the advantage of using AL7075-T6 aluminum?

AL7075-T6 is an aerospace-grade aluminum alloy offering one of the highest strength-to-weight ratios available. It provides exceptional durability, fatigue resistance, and dimensional stability under load, which is essential for a component that experiences significant centrifugal forces and vibration. This material choice ensures the adapter maintains its precision and integrity over long service life.