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HRX-DA-350 · Drone Parts
Drone Arm & Motor Mount — Drone Parts
Lightweight 7075 arm with integrated motor mount and cable routing.
Tolerance±0.05 mm
MOQ10 pcs
Lead time10–15 days
AvailabilityMade to order
Applications
- Multi-rotor UAV frames
- Industrial inspection drones
- Agricultural spraying drones
- FPV racing frames
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
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.
Competitive advantages
- vs. Carbon-fibre printed arms: 7075-T6 milled arms survive impact and battery heat; carbon delaminates at crack initiation
- vs. Cast aluminium arms: Machined from solid: no flash, no porosity, full lot traceability
- vs. Generic 3-axis hobby CNC shops: 4-axis milling keeps motor bolt circle, arm bore and datum faces concentric in one fixture
- vs. In-house tooling at drone OEMs: No tooling cost, no MOQ — prototype to 8,000 pcs/month on the same CNC programme
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.
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