Built on Precision.
Trusted by Industry.
NITAI is a specialized manufacturer of industrial connectivity solutions -- terminal blocks, M8/M12/M16 waterproof connectors, and cable assemblies -- serving automation engineers and system integrators across six continents since 2012.
12+
Years Experience
50+
Countries Served
500+
Product SKUs
NITAI Industrial Park · Dongguan, Guangdong
A Decade of Engineering Excellence in Industrial Connectivity
Founded in 2012 in Dongguan -- China's manufacturing heartland -- NITAI has grown from a focused connector workshop into a full-scale industrial connectivity manufacturer with automated production lines, in-house tooling, and a global distribution network.
We specialize in terminal blocks, waterproof circular connectors (M8, M12, M16), cable assemblies, and DIN-rail interface modules. Our products are engineered to perform in the most demanding environments: factory floors, robotic cells, outdoor control cabinets, and high-vibration machinery.
- OEM/ODM manufacturing with full customization capability
- ISO 9001:2015 certified quality management system
- UL, CE, RoHS, REACH and CQC/VDE compliant product lines
- IP67/IP68 waterproof testing on every production batch
15,000㎡
Facility Area
200+
Production Staff
30M+
Units / Year
Company Milestones
From a focused terminal block workshop to a global industrial connectivity manufacturer -- thirteen years of continuous investment in technology, capacity, and quality systems.
Company Founded
NITAI was founded and officially registered in Dongguan, China. Initial product development focused on the spring terminal block series, establishing the core manufacturing foundation.
International Certifications Achieved
Major product lines obtained UL, CQC, and VDE certifications, establishing the foundation for international market expansion and opening doors to global industrial customers.
Automated Production Introduced
Introduced automated production equipment and upgraded manufacturing efficiency and quality control processes, significantly increasing output consistency and capacity.
Terminal Block Portfolio Expanded
Expanded terminal block product portfolio to include European-style terminal blocks and barrier terminal blocks, broadening the range of wiring solutions for control cabinet applications.
ISO 9001 Quality Certification
Obtained ISO 9001 quality management certification and strengthened standardized production management, formalizing NITAI's commitment to systematic quality control across all processes.
Push-In & Pluggable Series Launched
Added push-in terminal blocks and pluggable terminal block series to support broader industrial automation applications, meeting growing demand from PLC system integrators worldwide.
DIN Rail Solutions & OEM/ODM Expansion
Further expanded DIN rail terminal block solutions and improved OEM/ODM customization capabilities, enabling bespoke private-label programs for international equipment manufacturers.
Waterproof Connector Market Entry
Entered the waterproof connector market and launched M8/M12 circular connector product series for industrial automation and sensor applications, marking a major product diversification milestone.
Global OEM/ODM Business Expanded
Expanded global OEM/ODM business and developed customized cable harness and overmolded connector solutions for international customers, strengthening long-term supply partnerships worldwide.
Assembly & Testing Systems Upgraded
Upgraded automated assembly and testing systems to improve production consistency and delivery efficiency, investing in advanced in-line electrical and waterproof testing infrastructure.
Waterproof Cable Connector Systems Expanded
Strengthened industrial connectivity solutions with expanded waterproof cable connector systems and customized industrial wiring assemblies, serving robotics and outdoor automation equipment sectors.
Distribution & Interface Modules Launched
Launched Distribution & Interface Modules product series including PLC interface modules and industrial distribution modules for control cabinet and automation system applications.
Global Integrated Connectivity Solutions
Continued expanding integrated industrial connectivity product solutions for automation, robotics, and intelligent manufacturing industries worldwide -- serving 50+ markets with a full-spectrum product portfolio.
Factory Environment
Our 15,000 m² purpose-built facility in Dongguan integrates injection molding, automated assembly, cable processing, and quality testing under one roof -- enabling tight process control and fast turnaround for both standard and custom orders.
15,000
m² Facility Area
30M+
Units / Year
12
Assembly Lines
200+
Production Staff
Production Equipment & Capabilities
NITAI Electronics' vertically integrated manufacturing uses industry-grade equipment across every production stage -- from raw material processing to final assembly and testing.
Injection Molding
High-precision injection molding machines processing PA66, PBT, and engineering plastics. In-house tooling enables rapid mold development for custom connector housings.
Cable Overmolding
Automated cable overmolding lines producing PVC, PUR, and TPU jacketed assemblies. Strain relief integrity tested to IEC standards for every production batch.
Automated Assembly
12 automated assembly lines with robotic pick-and-place and torque-controlled fastening. Consistent sub-millimeter precision across millions of units monthly.
Electrical Testing Systems
Automated electrical test benches performing continuity, insulation resistance, and withstand voltage tests. 100% testing coverage on all finished connectors.
Waterproof Testing Chambers
Dedicated IP67 and IP68 immersion test chambers with pressure monitoring. Batch waterproof testing ensures every connector meets rated ingress protection specifications.
CNC Metal Machining
Precision CNC turning and milling for brass contact pins and coupling nuts. Gold and nickel plating in-house for optimal conductivity and corrosion resistance.
Quality Testing Lab
Our dedicated quality laboratory operates independently from production, ensuring objective verification of every product specification. From raw material incoming inspection to final shipment release -- every stage is documented and traceable.
Incoming Material Inspection
PA66 tensile strength, brass conductivity, cable insulation resistance verified against spec sheets before production release.
In-Process Quality Control
Dimensional checks at injection molding, contact force measurement during assembly, and visual inspection at every workstation.
Electrical Testing
100% electrical testing: continuity, insulation resistance (500V DC), and high-voltage withstand tests on automated test benches.
Waterproof Testing
IP67 (1m / 30 min) and IP68 (3m / 24h) batch immersion testing with pressure differential monitoring per IEC 60529.
Final Inspection & Shipment
AQL sampling, packaging verification, and Certificate of Conformance issued with every shipment for full traceability.
99.8%
On-Time Delivery
<0.1%
Field Defect Rate
100%
Electrical Test Coverage
ISO
9001:2015 Certified
Independent QA Laboratory
Our QA lab operates independently from production management, with dedicated QC engineers empowered to halt production lines when non-conformances are detected -- ensuring zero-defect shipment culture.
OEM / ODM Capabilities
NITAI Electronics' provides comprehensive OEM and ODM manufacturing services for industrial connector and terminal block brands worldwide. From concept to delivery, we support every stage of your custom product development -- including private label branding, custom packaging, and dedicated production scheduling.
Our in-house mold design team, automated production infrastructure, and experienced application engineers allow us to take on complex customization requests with fast turnaround and consistent quality.
Custom Pin Configuration & Coding
A, B, D, X coding variants; 2-12 pin configurations; custom contact arrangements for M8, M12, M16 series.
Custom Cable Length & Material
PVC, PUR, TPU cable jackets; custom lengths from 0.1m to 20m+; shielded and unshielded options; custom conductor cross-sections.
Private Label & Custom Packaging
Custom brand labeling, laser marking, color-coded housings, and branded retail packaging for OEM private-label programs.
Custom Wiring Solutions & Harnesses
Complete cable harness assemblies with custom connector combinations, multi-branch configurations, and application-specific wiring diagrams.
OEM Development Process
Requirement Consultation
Technical requirements review, application environment analysis, and specification confirmation with our engineering team.
Design & Prototyping
3D mold design, sample fabrication, and prototype testing -- typically within 15-25 working days for standard customizations.
Sample Approval & Validation
Customer sample review, dimensional and functional testing, and design refinement based on feedback.
Mass Production & Delivery
Dedicated production scheduling, in-line QC, and on-time delivery with full documentation and CoC certificates.
Key Materials Available
Industrial Application Scenarios
NITAI Electronics' connectivity solutions are deployed across the most demanding industrial environments. From precision robotics cells to outdoor energy infrastructure -- our connectors and terminal blocks deliver reliable performance where it matters most.
Control Cabinet Wiring
DIN rail terminal blocks and pluggable connectors for PLC control panels, power distribution boards, and industrial switchgear. High-density wiring in compact cabinet footprints.
Robotics & Smart Manufacturing
M12 circular connectors for robot arm joint wiring, encoder feedback, and end-of-arm tooling. Designed for high-flex cable applications and repeated mating cycles.
Sensor & Actuator Connectivity
M8 and M12 connectors for proximity sensors, photoelectric sensors, pressure transducers, and industrial actuators. IP67/IP68 rated for wash-down and outdoor environments.
Industrial Networking & Fieldbus
M12 D-coded and X-coded connectors for PROFINET, EtherNet/IP, and industrial Ethernet applications. Shielded cable assemblies for noise-immune data transmission.
Energy & Power Infrastructure
M16 heavy-duty connectors and terminal blocks for solar inverters, wind turbine control systems, EV charging stations, and outdoor power distribution equipment.
Building Automation & HVAC
Distribution modules and pluggable terminal blocks for BMS controllers, HVAC systems, access control panels, and intelligent building infrastructure.
Corporate Culture
NITAI Electronics' culture is built on engineering integrity, continuous improvement, and long-term partnerships. We believe that reliable products begin with a reliable organization.
Precision First
Every product specification is treated as a commitment. Dimensional tolerances, contact resistance, and sealing integrity are non-negotiable standards -- not targets.
Continuous Improvement
Kaizen-driven production culture with monthly process reviews, defect root-cause analysis, and regular equipment investment to maintain competitive quality standards.
Partnership Mindset
We approach every OEM relationship as a long-term engineering partnership -- sharing technical expertise, adapting to project requirements, and growing together with our customers.
Global Responsibility
RoHS and REACH compliance reflects our commitment to environmental responsibility. We continuously evaluate materials and processes to minimize environmental impact.
Global Market Presence
NITAI products are trusted by industrial equipment manufacturers and automation integrators in over 50 countries. Our global distribution network ensures reliable supply and responsive technical support.
Europe
Germany, Italy, France, Netherlands, Poland, Spain -- serving machine builders and automation OEMs with CE-certified product lines.
North America
USA and Canada -- UL-listed products supplied to PLC integrators, control cabinet manufacturers, and industrial distributors.
Southeast Asia & Middle East
Singapore, Malaysia, Thailand, UAE, Saudi Arabia -- supporting rapid industrial growth with competitive pricing and fast delivery.
South America
Brazil, Mexico, Argentina, Chile -- growing presence in manufacturing automation and energy infrastructure sectors.
NITAI Export Coverage · 50+ Countries
Customer Profiles We Serve
Certifications & Qualifications
NITAI products comply with the most stringent international standards for industrial electrical components. Our certification portfolio enables direct market access across all major global regions.
UL Listed
ANSI/UL 508 · ANSI/UL 2238
UL listing for industrial connectors and cable assemblies. Required for North American market compliance and OEM integration.
CE Marking
EMC Directive · LVD 2014/35/EU
Full CE conformity declaration covering Low Voltage Directive and EMC requirements for European market access.
RoHS Compliant
EU Directive 2011/65/EU
All products comply with RoHS restrictions on hazardous substances including lead, mercury, cadmium, and hexavalent chromium.
REACH Compliant
EC No. 1907/2006
Full SVHC substance declaration. Material safety data sheets available for all product families upon request.
9001
ISO 9001:2015
Quality Management System
Certified quality management system covering design, procurement, production, testing, and after-sales service processes.
VDE
CQC & VDE Certified
China & European Safety Standards
CQC certification for Chinese domestic market and VDE certification for German/European electrical safety compliance, obtained since 2013.
IP68
IEC 60529 Ingress Protection Rating
Third-party verified IP67 and IP68 ratings on all waterproof connector series. Test reports available upon customer request for qualified buyers and OEM programs.
Download Certification Documents
Full test reports, CoC documents, and compliance declarations available upon request for qualified buyers.
Ready to Partner with NITAI?
Whether you need standard catalog products or fully custom OEM connector solutions, our engineering team is ready to support your next project.