Drone Arm & Motor Mount

Name: Drone Arm & Motor Mount
Brand: HRX MACHINING
SKU: HRX-DA-350

Lightweight 7075 arm with integrated motor mount and cable routing.

Tolerance±0.05 mm

MOQ10 pcs

Lead time10–15 days

AvailabilityMade to order

Size class

Material

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Description

Drone arms carry bending loads at the lightest possible weight, so material choice and fibre direction matter more than raw strength. We machine 7075-T6 arms with pocketed webs that remove up to 35 % of the mass without losing stiffness, and we drill the motor bolt circle in the same fixture as the mounting face so the motor sits flat. Cable channels, antenna slots and heat-sink fins can be integrated to cut part count in your assembly.

Specifications

Material	Aluminium 7075-T6 / 6061-T6
Dimensions	L 120–260 mm, section 12–20 mm
Weight	18 – 65 g (depending on size)
Tolerance	±0.05 mm
Flatness	0.05 mm on motor seat
Max. load	up to 4 kg thrust per arm
Surface roughness	Ra 1.6 µm
Machine	4-axis CNC milling
Surface finish	Anodised black / clear / custom
Typical volume	10 – 8,000 pcs / month
MOQ	10 pieces
Lead time	10–15 working days

Key features

Pocketed webs remove up to 35 % of mass
Motor bolt circle machined with mounting face
Integrated cable channel and antenna slot
Flatness 0.05 mm on the motor seat
Batch consistency for replacement stock

Applications

Multi-rotor UAV frames
Industrial inspection drones
Agricultural spraying drones
FPV racing frames

Scope of delivery

Arms packed in pairs (L/R)
Motor screws included on request
Batch inspection report

Quality control

Every batch is checked on a coordinate measuring machine, with calipers, micrometers and gauge blocks on the shop floor. A dimensional report is available with each shipment and first-article inspection is free on series orders.

Frequently asked questions

How do you ship, and who handles customs?

DHL/FedEx/UPS express for prototypes and small batches, sea or rail freight for production volumes. We ship EXW, FOB, CIF, DAP or DDP — with DDP the duties and taxes are settled on our side so nothing is owed at customs.

How do you protect my design?

We sign an NDA before you send anything sensitive. Drawings are stored on an access-controlled server and only the programmers and operators assigned to your part can open them.

What file formats do you accept?

STEP (.stp/.step) or IGES (.igs) for 3D, PDF or DWG for 2D drawings with tolerances and surface finish. If you only have a physical sample, we can reverse-engineer it — and a photo with the key dimensions is enough for a budget estimate.