Aerospace/Aviation

UAV Engine Cowling

Attributes

Technical Specification Sheet

Base Material:
Aerospace-grade aluminum alloy
(Fully compatible with KMS aluminum metal spinning technology; maximum formable thickness up to 15 mm.
At 2.0 mm wall thickness, yield strength ≥ 180 MPa, achieving an optimal balance between lightweight construction and impact resistance, meeting structural requirements for low-altitude UAV operations.)
Dimensions:
Ø520 × H400 mm
Wall thickness uniformity deviation ≤ 0.05 mm
Roundness deviation ≤ 0.1 mm/m
Ensures precise fit with the engine compartment.
Dimensional Tolerance:
±0.1 mm
(Aerospace-grade standard, achieved through full-process temperature-controlled machining on CNC800 spinning lathes, minimizing dimensional deviation caused by thermal deformation.)
Surface Treatment:
Precision mechanical polishing
(Ra ≤ 0.8 μm, reducing aerodynamic drag coefficient to 0.02 and improving UAV endurance by approximately 15%)
Optional chemical passivation
(Pickling and passivation process; salt spray resistance ≥ 480 hours, suitable for coastal, high-humidity, and other harsh operating environments)

Blank Preparation:
3000 W laser cutting system
(Processing range covers aluminum substrates up to 12.0 mm thickness)
Cutting accuracy ±0.05 mm, enabling burr-free cutting of aluminum sheets.
Dimensional consistency of raw material is controlled at the source, effectively reducing downstream spinning deviation.
Core Forming Process:
CNC multi-pass progressive metal spinning
- Performed on CNC800 spinning lathes (10-machine dedicated production line)
- Feed rate precisely controlled at 0.1 mm per pass
- Seamless, one-piece forming of Ø520 × H400 structure (weld-free)
- Surface transition radius R5 mm with tolerance ≤ 0.05 mm
- Fully aligned with UAV aerodynamic streamlining design, minimizing in-flight air resistance
Post-Processing Enhancement:
- Polishing using 800-grit precision abrasive heads with three-stage progressive finishing to ensure superior surface smoothness
- Optional powder coating process with UV resistance rating up to UV3, extending outdoor service life beyond 5,000 hours

System Certification:
Full-process compliance with ISO 9001:2015 Quality Management System
Materials and processes also meet aerospace RoHS and REACH environmental standards, supporting third-party customer certification.
Inspection Equipment:
- DCC Coordinate Measuring Machine (accuracy ±0.001 mm; 100% full-dimension inspection coverage)
- Ultrasonic thickness gauge for real-time monitoring of wall thickness uniformity
- FARO portable measuring arm for verification of complex surface contour accuracy
  Ensures every component meets specified parameters.
Inspection Standards:
- Raw material spectrometric analysis to confirm aerospace-grade aluminum alloy composition
- Airtightness testing of finished parts at 0.3 MPa (zero leakage)
- Mechanical property sampling inspection: 5 pieces per batch tested for yield strength (≥ 180 MPa)
  Overall defect rate controlled below 0.1%.

Capacity Assurance:
Dedicated production line with 10 CNC800 spinning lathes
- Output per machine ≥ 30 units/day
- Stable monthly capacity ≥ 800 units, supporting UAV mass-assembly requirements
- For capacity expansion, CNC900 spinning lathes (up to Ø900 mm capability) can be deployed, increasing monthly capacity to a maximum of 1,200 units
Delivery Model:
- JIT (Just-In-Time) delivery supported
- Standard order lead time ≤ 12 days
- VMI (Vendor Managed Inventory) service available, dynamically aligned with customer production plans to reduce capital occupancy and warehousing costs
Customization Response:
For special requirements (e.g., dimensional adjustments or coating customization),
- Manufacturing process方案 issued within 24 hours
- Sample delivery lead time ≤ 7 days

Primary Applications:
UAV engine protection
- Compatible with multi-rotor and fixed-wing UAVs (e.g., industrial inspection drones, emergency rescue UAVs)
- 2.0 mm wall thickness withstands low-altitude sand, dust, and gravel impact
- Structural stability maintained from –30 °C to +60 °C
- Prevents engine damage caused by foreign object intrusion or thermal variation, ensuring continuous operation
Extended Applications:
- Auxiliary cowlings for light general aviation aircraft
  Dimensions adjustable to Ø600 × H450 mm; processed on CNC900 spinning lathes to improve aerodynamic efficiency
- Power compartment protection for agricultural UAVs
  Custom anti-pesticide corrosion coating (chemical resistance rating ≥ C2) to prevent chemical erosion
- Ground generator enclosures
  Optional wear-resistant coating (hardness ≥ HRC50), suitable for mining sites, construction areas, and other harsh industrial environments

Quality Commitment:
1-year warranty provided.
In case of non-human-induced issues such as dimensional deviation, coating delamination, or structural cracking during the warranty period, free replacement and logistics costs are fully covered.
Technical Support:
Installation and fitment guidance manual supplied with each shipment
(including dimensional matching drawings and installation torque parameters).
Engineering support response within 48 hours, with remote assistance available for installation issues.
Post-Delivery Follow-Up:
Quarterly customer follow-ups to collect operating condition feedback and continuously optimize manufacturing processes
(e.g., upgrading anti-adhesion coatings for high-dust environments).
Long-term partners receive one free inspection service per year to ensure sustained performance compliance.
Emergency Response:
For urgent replenishment requirements, a priority production channel is activated, with the shortest delivery time as fast as 72 hours.