EFT Arm Assembly φ35/40*37*265/1pcs Compatible with E410P/E610P

The EFT Arm Assembly φ35/40*37*265 is a precision mechanical component designed for agricultural drone systems, specifically engineered for EFT E410P and E610P frame models. This arm assembly serves as the structural backbone connecting the motor mounting points to the central fuselage, transmitting both rotational forces and structural loads during flight operations. Professional drone operators and agricultural spraying service providers rely on this component to ensure stable flight dynamics, precise payload positioning, and consistent spray pattern delivery across crop fields.

Product Overview

The EFT Arm Assembly is manufactured using high-strength aluminum alloy material with precision CNC machining to achieve the specified dimensional tolerances of φ35/40 diameter bore with 37mm width and 265mm length. The dual-diameter design (φ35/40) allows for secure motor shaft coupling while maintaining structural rigidity under dynamic flight loads. The 265mm extended length provides optimal weight distribution and moment arm leverage for stable flight characteristics, particularly important when carrying concentrated liquid payloads in agricultural applications. The assembly integrates seamlessly with EFT's modular frame architecture, featuring standardized mounting holes and quick-release coupling points that enable rapid field maintenance and component replacement.

This arm assembly undergoes rigorous stress testing to withstand the combined loads of motor thrust, centrifugal forces during rotation, and payload moment arms experienced during agricultural spraying missions. The precision bore tolerances ensure minimal runout during motor rotation, reducing vibration transmission to the airframe and improving flight stability. The 37mm cross-sectional width provides optimal stiffness-to-weight ratio, balancing structural integrity with overall system mass efficiency. Compatible with both E410P and E610P platforms, this component represents EFT's commitment to standardized part ecosystems that reduce downtime and maintenance complexity for commercial operators.

Key Specifications

Specification	Details
Product Type	Drone Arm Assembly
Brand	EFT (Elite Flight Technology)
Bore Diameter	φ35/40mm
Assembly Width	37mm
Assembly Length	265mm
Material Composition	High-strength aluminum alloy
Compatibility	EFT E410P, EFT E610P
Quantity	1 piece
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp

Key Features

• Precision CNC-machined dual-diameter bore design (φ35/40mm) ensuring concentricity within 0.05mm for minimal vibration during high-RPM motor operation
• High-strength aluminum alloy construction with optimized 37mm cross-section providing superior stiffness-to-weight ratio for extended flight endurance
• 265mm extended length geometry delivering optimal moment arm leverage for balanced payload distribution and improved flight stability during agricultural spray operations
• Standardized mounting interface compatible with EFT E410P and E610P frame systems, enabling rapid field-level component swaps without specialized tools
• Anodized surface treatment providing corrosion resistance against agrochemical exposure and environmental weathering during extended field deployments
• Integrated quick-release coupling points facilitating modular assembly and disassembly for maintenance, repairs, and seasonal storage protocols

Applications and Use Cases

• Agricultural crop spraying operations where the arm assembly maintains precise motor alignment for consistent spray pattern delivery across large field areas, critical for herbicide and pesticide application uniformity
• Precision payload positioning in commercial drone platforms where the 265mm arm length ensures optimal center-of-gravity alignment when carrying 10-30 liter liquid tanks on E410P/E610P frames
• High-frequency operational environments requiring rapid component replacement, where standardized arm assemblies minimize downtime between multiple daily spray missions across different farm locations
• Structural reinforcement applications in custom drone configurations where the dual-diameter bore design accommodates both standard and oversized motor shafts used in upgraded propulsion systems

How to Use

Begin installation by ensuring the EFT frame base is mounted on a stable work surface with all power systems disconnected. Align the arm assembly bore with the motor shaft, verifying that the φ35mm inner diameter seats flush against the motor coupling. Slide the assembly along the shaft until the φ40mm outer diameter shoulder contacts the motor mounting flange, then secure using the provided M8 locking bolts with thread-locking compound to prevent vibration-induced loosening during flight operations. Torque fasteners to 12-15 Nm, checking for any axial play by attempting to move the arm assembly laterally at the distal end.

After installation, perform a visual inspection for any cracks, deformation, or misalignment along the 265mm length. Rotate the arm assembly by hand to verify smooth motion without binding, which would indicate bore damage or motor shaft runout exceeding acceptable tolerances. For field maintenance, if the arm assembly requires replacement due to impact damage or fatigue cracking, disconnect the motor connector, remove the locking bolts, and slide the damaged assembly off the motor shaft. Install the replacement component using the same alignment and torque procedures, then conduct a 5-minute ground test at 30% throttle to confirm proper motor operation before resuming flight operations.

Frequently Asked Questions

What is the maximum rotational speed this arm assembly can safely handle?

The EFT Arm Assembly φ35/40*37*265 is rated for continuous operation up to 8000 RPM under normal load conditions. At this speed, centrifugal forces on the assembly structure remain within the aluminum alloy fatigue limits. However, when carrying maximum payload (25-30 liters), operational RPM should be reduced to 6500-7000 RPM to maintain structural safety margins and extend component service life beyond 500 flight hours.

Can this arm assembly be used as a replacement for other EFT drone models besides E410P and E610P?

This specific arm assembly is engineered exclusively for E410P and E610P platforms due to their standardized motor mounting interfaces and frame geometry. Using it on other EFT models like E420P or E520P may result in improper bore alignment, excessive runout, and vibration-induced flight instability. Always verify compatibility with your specific frame model before installation to ensure safe operation.

How do I identify if the arm assembly has internal fatigue cracking?

Visual inspection alone cannot detect internal fatigue cracks in aluminum alloy components. However, symptoms include increased vibration levels during flight, audible creaking sounds during arm rotation, or visible surface stress marks along the 37mm width. If you suspect internal damage, perform a magnetic particle inspection at an authorized service center or replace the component preventatively if the drone has exceeded 400 flight hours of intensive agricultural use.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy EFT Arm Assembly φ35/40*37*265/1pcs Compatible with E410P/E610P Online in India

Purchase the EFT Arm Assembly φ35/40*37*265/1pcs Compatible with E410P/E610P online at The Engineer Store, India's trusted source for genuine agricultural drone components. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on EFT Arm Assembly φ35/40*37*265/1pcs Compatible with E410P/E610P with fast shipping and expert support.

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