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A finished industrial hexacopter UAV on a pale bench, matte black carbon-fibre airframe with six folded propellers, retracted landing skids and a compact gimbal payload pod under the centre plate

Product category · Group C · electronics manufacturing

UAV & drone systems

Buy the modules you are missing, or a complete aircraft built from the same six families and tuned before it ships.

Send us your airframe and payload requirement The Group C sites
Component families
6
Flight control, ESC and power, propulsion, airframe, communication, payload
Architecture layers
4
How the six families stack into one aircraft
Customisation
6steps
Define, architect, configure, integrate, tune, verify
Certificate wall
18documents
A published count of documents, not a claim about their scope

01Connection layer · what we supply

Two ways to buy:
components or a complete system.

6 families4 architecture layers5 industries
A finished industrial quadcopter UAV on a pale bench with folded propellers and a gimbal payload pod mounted underneath
Fig. A A complete system. Configured, integrated and tuned before it ships.
A finished industrial hexacopter on a pale bench, six arms folded, landing skids level and a payload pod under the centre plate
Fig. B The airframe family. Carbon structure, arms and folding joints.
A carbon-fibre airframe arm and its machined aluminium folding joint in close macro, with a folded propeller blade squared beneath
Fig. C Propulsion mounts here. Motor, ESC and propeller meet the airframe at this joint.
The six component families
FamilyWhat is in itWhat it decides
Flight controlControllers, inertial sensing and GPSThe stack your airframe is tuned to
ESC & powerSpeed controllers and power distributionThe current path from pack to motors
PropulsionMotors, controllers and propellersEndurance and payload margin
AirframeCarbon structures, arms and jointsAll-up weight, wind and payload
CommunicationData links and antennasThe link budget your range claim rests on
Payload & kitsGimbals, pods and kit setsWhat the aircraft is actually for

02Connection layer · who builds it

The named site
behind this category.

1 supplier siteGroup CFive application industries

EMS Drone

Configurable UAV components, complete systems and engineering support for teams building low-altitude applications.

6 component families4 architecture layers5 industriesInspection photographs published
ISO 9001:2015 (UKAS-accredited)CE Declaration of Conformity — EMC 2014/30/EUFCC Part 15 Subpart BNational High-Tech Enterprise

The published certificate wall carries 18 documents. That is a count of documents, not a statement about what each one covers.

A finished industrial quadcopter UAV on a pale bench, folded propellers and a gimbal payload pod mounted under the frame
Fig. D Complete systems are built from the same component families an OEM can buy separately.
A finished industrial hexacopter on a pale bench with six folded propellers and retracted landing skids
Fig. E Keep your airframe, swap the stack. Or keep the stack and change the payload.
A carbon-fibre airframe arm with a machined aluminium folding joint and a folded propeller blade in close view
Fig. F Incoming and assembly inspection photographs are published, step by step.

03Execution layer · the six-step path

Six named steps, so you know
where the programme stands.

Verify is a stepNot a promise
A machined aluminium folding joint and carbon-fibre arm in close macro, with one teal collar and a stainless pivot pin
Fig. G Integration and tuning are where a UAV programme loses its schedule.
01DefineThe duty: payload, endurance target, wind and site.
02ArchitectWhich of the four layers changes, and which stays.
03ConfigureComponents chosen against the duty, not the catalogue.
04IntegrateAirframe, stack, propulsion and payload assembled as one.
05TuneControl loops set for this airframe and this payload.
06VerifyFlown at a stated weight and wind, with the record handed over.
A finished industrial quadcopter UAV on a pale bench with folded propellers and a gimbal payload pod
Fig. H Ask what was flown, at what all-up weight, in what wind, with what endurance.
A finished industrial hexacopter on a pale bench, six arms with folded propellers and a payload pod beneath
Fig. I A controller configured for another airframe has to be tuned from scratch.

04Trust layer · read the claim carefully

What a UAV document
does and does not cover.

EMC 2014/30/EUFCC Part 15BUN 38.3
A finished industrial quadcopter UAV on a pale bench with a gimbal payload pod

CE here means electromagnetic compatibility

A CE declaration of conformity under the EMC Directive is a narrow statement. It says nothing about flight safety or airworthiness.

EMC 2014/30/EUNot a third-party certificate
A single technical drawing sheet seen from above with a pen, folding dividers and one teal sticky tab

Part 15 Subpart B covers unintentional radiators

Most unintentional radiators may take a Supplier's Declaration of Conformity or Certification. Scanning receivers and radar detectors must be certified.

§15.101SDoC or certification
Four finished rack-mount network switches in a row with closed faceplates and empty port cages

Radio licensing is national, not global

A 2.4 GHz or 900 MHz link legal in one market may need a different power limit or band elsewhere. Confirm each destination separately.

Per-market approvalNot carried by CE or FCC
A carbon-fibre airframe arm and machined aluminium folding joint in close macro with a folded propeller blade beneath

The battery is the third regime

Lithium packs ship under UN 38.3 with MSDS, classified UN3480 / UN3481 / UN3090 / UN3091. Air freight adds its own state-of-charge rules.

20 Wh cell100 Wh battery49 CFR 173.185

05Execution layer · how we carry it

Four services carry
a UAV programme.

6 service lines1 contract
Two technicians seen from behind at a bench, one holding a document of grey placeholder bars and the other pointing at it SVC-01

Sourcing & matching

A propulsion combination that only works on paper.

We match the stack, the motors and the propellers to your airframe and payload.

An engineering bench under an inspection lamp with a finished circuit board assembly, a magnifier arm and sample connectors SVC-04

Technical assessment

A certification route discovered after tooling.

Written at component selection: which stack suits the airframe, which combination gives the endurance, where the market changes the BOM.

Digital calipers closed around a machined aluminium housing beside a blank inspection checklist and a sealed sample bag SVC-05

Production follow-up & QC

A batch that flies differently from the sample.

Pre-shipment inspection to ISO 2859-1 general level II, plus functional testing to your own acceptance criteria.

An export loading bay with an open container onto a pale apron and unlabelled cartons on pallets SVC-06

Export execution

Destination, end use and end user are asked about.

FOB by default, FCA for inland stuffing, with the battery declaration and dangerous-goods papers in the set.

Related Embedded & industrial computing Group C — electronics manufacturing

06Inputs · what to send us

What to send us.

4 inputsthen a quotation
A technical drawing flat on a pale bench with digital calipers, a drafting triangle and sample parts
Fig. J Airframe, payload and endurance are the three inputs that shape the quotation.
01Duty and airframeWhat it must carry, how far, and the airframe you already have.
02Endurance and weightThe all-up weight target and the flight time you are quoting to your own customer.
03Radio and marketDestination markets and the radio approvals each one demands.
04Documents and end useThe end-use statement your destination requires, and who signs it.
A single technical drawing sheet with a pen, folding dividers and one teal sticky tab, seen from directly above
Fig. K The verification record at step six is a document, not a verbal assurance.
A blank unmarked form on a clipboard with a pen, abstract ruled lines and empty tick boxes
Fig. L One page is enough to start. The written assessment comes back first.

07Start

Send us your airframe and payload requirement.

Name the families you need, or the duty the aircraft has to fly. An engineer replies.

Recorded. An engineer will reply.

Written technical assessment, from eric@dfshk.cn.

Book a factory visit eric@dfshk.cn · +86 152 3512 7440