Precision at the core.
Possibility beyond.
Connecting electronic engineering and Shenzhen manufacturing resources through Hong Kong. From PCBA development to coordinated production, move your next product forward.
From a single board.
To a complete experience.
Understand the application. Connect design with manufacturing. Turn complex requirements into a clear path to production.
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↗Custom PCBA solutions
Coordinate board development and manufacturing around functionality, dimensions and operating conditions.
↗Power management
Power board applications with attention to supply requirements, thermal behaviour and system integration.
↗Control & drive
Connect sensing, user inputs and actuation in a coherent control architecture.
Images from company materials. Illustrative applications; availability and specifications are confirmed for each project.
Different applications. The same attention to engineering.
From everyday appliances to industrial equipment and commercial displays, define control, power, interfaces and validation around the application.
Industrial control ↗
Define control-board requirements for sensing, motor drive, communications and fault protection.
02 / APPLICATIONSmart home & appliances ↗
Fans, humidifiers and heaters call for speed control, thermal regulation, user controls and protection.
03 / APPLICATIONPersonal care electronics ↗
Review drive systems, charging, operating modes and enclosure interfaces for toothbrushes and hair dryers.
04 / APPLICATIONCommercial displays ↗
Align core boards, display interfaces, power and final assembly for system integration.
05 / APPLICATIONMedical & equipment electronics ↗
Start with functions, traceability and test documentation; establish quality and regulatory requirements for the intended use.
06 / APPLICATIONEnergy & power applications ↗
Bring supply, load, thermal and protection requirements into board design and validation.
Hong Kong perspective.
Shenzhen collaboration.
K-CORE provides a Hong Kong point of contact, coordinating requirements, engineering and delivery with electronic manufacturing resources at Shenzhen Jingkerui Precision Products Co., Ltd. Scope is agreed for each project.
Discover more ↗A connected path from design to finished product.
Drawing on JKR’s PCBA development, material sourcing, board assembly and finished-product services, K-CORE helps translate requirements into an agreed manufacturing and validation plan.
Design & PCB
Define functions, circuitry, board layout and mechanical interfaces before sampling.
BOM & materials
Review part numbers, availability and substitution rules; coordinate PCB fabrication and sourcing.
SMT & DIP
Connect surface-mount, through-hole and soldering processes with board-specific inspection requirements.
Test & delivery
Plan functional testing, ageing, conformal coating, final assembly and outgoing checks as required.



Office and production environments shown on JKR’s mainland website · JKR ↗
Engineering
Design review & prototyping
Establish the design, materials and sample validation approach before production.
↗02SMT & DIP coordination
Coordinate surface-mount, through-hole and subsequent assembly requirements around your board design.
↗03Test & quality planning
Translate product requirements into practical inspection and functional validation criteria.
↗04Assembly & delivery
Connect boards, mechanical integration and packaging in a coordinated delivery process.
↗05Turnkey PCBA & material sourcing
Coordinate PCB fabrication, BOM sourcing, assembly and testing within an agreed production scope.
↗06Ageing & conformal coating coordination
Plan board protection and ageing requirements around the operating environment.
↗Clarity at every step.
Discover
Align on application, requirements and objectives.
Evaluate
Review materials, processes and test requirements.
Validate
Assess samples and agree on refinements.
Deliver
Coordinate production against the agreed scope.
Insights
A practical PCBA enquiry checklist
Better information reduces clarification cycles and supports a more useful initial assessment.
Discover more ↗GUIDE / 02From prototype to production
An approved sample is the starting point for a repeatable manufacturing and acceptance process.
Discover more ↗GUIDE / 03Planning functional tests
Define measurable acceptance criteria grounded in real operating conditions.
Discover more ↗A few things to know before we begin
Can we start with a product idea?
Start with the application, key functions, size constraints and target market. For existing designs, prepare Gerber files, a BOM, schematics and test requirements.
Can the scope cover boards or complete products?
Discuss PCBA production, sourcing and complete-unit assembly separately or together. Full products also need agreed mechanical parts, wiring, labels, packaging and outgoing checks.
How are pricing, minimum quantities and lead times set?
They depend on design readiness, component supply, process complexity, testing and volume. Agree sampling, pilot production and batch production separately.
How do Hong Kong and Shenzhen work together?
K-CORE coordinates customer requirements and commercial discussions through Hong Kong, with JKR’s mainland resources supporting engineering and manufacturing. Project documents identify the manufacturing entity, quality criteria and delivery responsibilities.