About Us
Deep expertise in connectors, delivering reliable connections for industrial equipment.
Company Profile
Shenzhen Jingang Technology Co., Ltd. was established in 2015. As a high-tech enterprise specializing in aviation connectors and plugs, we integrate R&D, manufacturing, and sales under one roof. Based in Shenzhen, our company operates a standardized production facility equipped with comprehensive manufacturing machinery and reliability testing instruments, enabling end-to-end product development, production, and testing.
With years of deep expertise in the connector industry, we specialize in circular aviation connectors and waterproof connectors. Our products serve diverse sectors including aerospace, industrial automation, rail transit, new energy, stage performance equipment, and more. Equipped with multiple automated production lines, our annual capacity exceeds one million units. We provide reliable supply of standard inventory while offering customized connection solutions tailored to specific operational conditions for clients worldwide.
The company adheres to the core philosophy of "Quality First, Customer First," establishing a comprehensive production quality control process. We strictly manage raw materials, manufacturing processes, and final inspections to ensure long-term product stability. Simultaneously, we continuously invest in R&D to iterate product craftsmanship based on market demands, optimizing connector durability and compatibility to effectively address real-world usage challenges.
Leveraging Shenzhen's comprehensive supply chain resources and years of industry expertise, we flexibly respond to order requirements while balancing delivery efficiency with after-sales support. Future, Changgang Technology will continue to focus on the connector sector, refine product quality, and optimize supporting services to become a trusted domestic connector manufacturer. M5 Connectors: Molded/Assembled Plugs (Straight/Angled), Front/Rear-Mount PCB Sockets, Solder-Type Sockets, 3-4pin M8 Connectors: 3-8pin; A/B/D Coding; Straight & Angled Molded/Assembled Plugs; Panel-Mount Sockets; Shielded Versions M12 Connectors: 2-12pin; A/B/D/X/L Coding; Molded Plugs, Field-Installable Plugs; T-type/Y-type 1-to-2 Splitters; LED-Indicator Plugs, Damping Plugs; Front/Rear-Mount Square-Flange PCB Sockets; Special Anti-Solder-Splash Connectors M16 Connectors: 2-24pin; Straight & Angled Molded/Assembled Plugs; Front/Rear-Mount Square-Flange Sockets; 304/316 Stainless Steel Salt-Spray Resistant Versions; Matching Dust Caps, Assembly Wrenches M23 Connectors: High-Power Power & Signal Connectors for Drives and Actuators 7/8 Connectors: Industrial Power Circular Connectors MS5015 (MIL-DTL-5015): Thread-Locking; MS3106 Straight Plugs, MS3108 Angled Plugs, MS3102 Square-Panel Flange Sockets, MS3100 Wall-Mount Sockets; Solder/Crimp Contacts, 2-61 Contacts 26482 (MIL-DTL-26482/GJB598): Bayonet-Locking; Series I / Series II; MS3110/MS3112/MS3116, Shielded & Sealed Circular Aerospace Plugs & Sockets VG95234 (NATO Reversed Bayonet): Reversed 3-Point Quick-Lock Bayonet; Straight Plugs, 90° Angled Plugs, Wall-Mount & Box-Flange Sockets; Pin-out Compatible with 5015; Vibration-Resistant & Quick-Plug/Unplug; For Rail Transit & Heavy-Duty Vehicles; Solder and Crimp Contacts MIL-DTL-38999 (D38999 Series III): High-Reliability Military-Grade Aerospace Connectors; Size 9-25# Shells; Triple-Start Quick Thread Locking; Five-Key Polarization for Mating Prevention; EMI Shielding; Stainless Steel/Aluminum Alloy Housings; Solder & Crimp Contacts; Applied in Aviation, Military, and Radar Equipment Stainless Steel Corrosion-Resistant Versions: 304, 316 Stainless-Steel Housings for 5015/26482/VG95234/38999, Suitable for Marine, Salt-Spray, and Chemical Environments HE Heavy-Duty Connectors: Complete Housings, Bases, Top Covers, and Inserts; 2-216 Contacts, 5A-200A High Current; Screw, Crimp, and Spring-Clamp Termination; Mixed Power-Signal Modules; IP65-IP68 Protection; High-Power Connectors for Control Cabinets, Rail Transit, and Equipment Cabinets
Manufacturing Capabilities
Our state-of-the-art manufacturing facility combines advanced automation with rigorous quality control to deliver connectors that meet the most demanding industrial and military specifications.
Automated Production Lines
High-precision CNC machining, automated assembly, and injection molding systems
Annual Capacity
Flexible annual production scheduling for rapid delivery
Quality Inspection
Full inspection of every unit before shipment; zero-defect guarantee
Manufacturing Process & Methodology
1. Precision Machining
CNC turning and milling centers produce connector shells and contacts with tolerances of ±0.01mm.. We use carbide tooling to ensure consistent surface finish and dimensional accuracy across production runs.
2. Injection Molding
High-precision molds produce insulator bodies from PBT, PA66, and PPS materials reinforced with glass fiber. Real-time monitoring of process parameters ensures consistent part quality.
3. Contact Stamping & Plating
Progressive die stamping forms contacts from copper alloy strip. Gold, silver, or nickel plating is applied per specification, with coating thickness verified via X-ray fluorescence.
4. Assembly & Automation
Semi-automated assembly stations pair precision fixtures with operator oversight. Key operations include contact insertion, insulator assembly, and shell crimping with force monitoring.
5. Testing & Quality Control
Every connector undergoes 100% electrical testing for continuity, insulation resistance, and dielectric strength. Dimensional and environmental tests are performed using statistical sampling.
6. Final Inspection & Packaging
Controlled lighting visual inspection, laser marking for traceability, and ESD-safe packaging ensure products arrive in perfect condition.
Testing & Reliability Equipment
Network Analyzer
Up to 6 GHz: VSWR and Return Loss
Insulation Tester
100V DC, ≥100MΩ measurement
Salt Spray Chamber
ASTM B117, 500+ hour testing
Temperature Chamber
-65°C to +200°C, thermal cycling
Vibration Table
MIL-STD-202, Random and Sine
Mating Force Tester
0-500N, insertion/extraction
Microscope System
50x magnification, contact inspection
Coating Thickness
X-ray fluorescence, Au/Ag/Ni
Quality System & Certifications
Management System
- ✓ISO 9001:2015 Quality Management System
- ✓ISO 14001:2015 Environmental Management
- ✓IATF 16949 Automotive Quality (in progress)
- ✓Internal audit program with quarterly reviews
Product Certifications
- ✓CE marking for access to the European market
- ✓RoHS & REACH compliant materials
- ✓Military qualification per GJB 598A
- ✓UL certification for selected product lines
Certifications
ISO001
ISO4001
Military Certification
CE Certification
Core Team
Engineer Zhang
Technical Director
20 years of connector industry experience
Engineer Li
R&D Manager
Led multiple technology innovations
Engineer Wang
Quality Manager
Strictly control product quality
Company Culture
