Shanghai Joinwit Optoelectronic Tech, Co., Ltd.
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    Manufacturing & Quality Control

    Our manufacturing facility spans over 3,000 square meters and is divided into four key sections: the production workshop, research and development center, warehousing center, and quality inspection center. With an annual production capacity of up to 500,000 units, we specialize in manufacturing a wide range of fiber optic testing instruments, including stabilized light sources, optical power meters, and more, to meet diverse market demands.

    Our technical team comprises experts from renowned domestic and international enterprises, each bringing over 15 years of industry experience. With this extensive expertise, utilizing advanced imported manufacturing equipment, and adhering to a rigorous quality control system, we ensure that the key parameters of our products achieve a precision level of ±0.1dB. With this we are able to provide a guaranteed accuracy and reliability of your measurements during use.

    Manufacturing
    Benchtop Fiber Optic Test Equipment Production Workshop
    Benchtop Fiber Optic Test Equipment Production Workshop
    Benchtop Fiber Optic Test Equipment Production Workshop
    Benchtop Fiber Optic Test Equipment Production Workshop
    Benchtop Fiber Optic Test Equipment Production Workshop
    Benchtop Fiber Optic Test Equipment Production Workshop
    Benchtop Fiber Optic Test Equipment Production Workshop
    Handheld Fiber Optic Test Equipment Production Workshop
    Handheld Fiber Optic Test Equipment Production Workshop
    Handheld Fiber Optic Test Equipment Production Workshop
    Handheld Fiber Optic Test Equipment Production Workshop
    Handheld Fiber Optic Test Equipment Production Workshop
    Handheld Fiber Optic Test Equipment Production Workshop
    Handheld Fiber Optic Test Equipment Production Workshop
    Quality Control

    At Joinwit, we place quality at the forefront of our manufacturing process, ensuring every product meets high standards of performance and reliability. Our quality control framework encompasses both production quality control and finished product testing to maintain excellence at every stage.

    Production Quality Control

    Before materials are accepted into production, we conduct thorough checks on dimensions, composition, and performance to ensure they meet required specifications.

    • Multi-level inspection: Multiple quality checkpoints are established throughout the production process, with dedicated quality control personnel monitoring each stage, from raw materials to finished goods.
    • Online monitoring: Advanced online inspection tools, such as Automatic Optical Inspection (AOI) systems, are utilized to detect and address quality issues in real-time during production.
    • Process control: All manufacturing processes are carried out in strict accordance with the ISO 9001 quality management system, ensuring compliance with international standards at every step.
    Finished Product Quality Control
    • Inspection process: Smart detection systems are employed to monitor production in real time and analyze data for improved precision and reliability.
    • Function testing: Each product undergoes comprehensive functional tests before leaving the factory, covering essential parameters such as wavelength range, power range, resolution, and accuracy.
    • Aging tests: Products are subjected to prolonged testing under high temperatures, low temperatures, and varying humidity levels to ensure long-term stability and durability.
    • Environmental adaptability testing: Simulated real-world conditions, such as drop tests, vibration tests, and waterproof testing, are performed to ensure the products can operate reliably even under challenging environments.

    Our commitment to rigorous quality control ensures that every product we deliver offers exceptional performance, reliability, and durability for your applications.

    Finished Product Quality Control
    Finished Product Quality Control
    Finished Product Quality Control

    Inspection team conducts appearance and performance testing

    Finished Product Quality Control
    Finished Product Quality Control
    Finished Product Quality Control
    Storage Quality Control

    Our storage is managed by a dedicated team of professionals and operates with an advanced warehouse management system. A barcode scanning system is utilized to ensure fast and accurate management of finished goods. Before leaving the warehouse, every fiber optic testing instrument undergoes a final inspection to guarantee it meets all quality standards, ensuring that only high-quality products are delivered to our customers.

    Storage Quality Control
    Storage Quality Control
    Storage Quality Control
    Storage Quality Control
    Storage Quality Control
    Storage Quality Control
    Transportation and Packaging Quality Control
    • Specialized packaging: Products are securely packaged in EVA foam-lined boxes to prevent collisions and damage during transportation.
    • Moisture protection: Desiccants are placed inside the packaging to safeguard products from moisture exposure.
     Transportation and Packaging Quality Control
    Looking for more information?
    • Email: joinwit@joinwit.com
    • Tel.: +86-21 64357213

    Feel free to contact us.

    Contact us
    • Benchtop Fiber Optic Test Equipment
    • Handheld Fiber Optic Test Equipment
    Polarization Extinction Ratio Meter
    JW8605 Polarization Extinction Ratio Meter
    Non-Winding Insertion Loss & Return Loss Meter
    JW8307AL Non-Winding Insertion Loss & Return Loss Meter
    Insertion Loss & Return Loss Meter
    JW3327 Insertion Loss & Return Loss Meter
    MPO Insertion Loss & Return Loss Test Platform
    JW18001 IL/RL MPO Insertion Loss & Return Loss Test Platform
    High-Speed Optical Power Meter Module
    JW1609C High-Speed Optical Power Meter Module
    High-Speed Optical Power Meter
    JW8103A High-Speed Optical Power Meter
    Benchtop Tunable Laser Source
    JW8006 Benchtop Tunable Laser Source
    Programmable Variable Optical Attenuator
    JW3301 Programmable Variable Optical Attenuator
    10G PON Power Meter
    JW3239C 10G PON Power Meter
    High Precision Optical Power Meter
    JW3220 High Precision Optical Power Meter
    Mini Optical Power Meter
    JW6201 Mini Optical Power Meter
    8-in-1 Mini Optical Time-Domain Reflectometer (OTDR)
    JW3302SJ 8-in-1 Mini Optical Time-Domain Reflectometer (OTDR)
    16-in-1 Mini Optical Time-Domain Reflectometer (OTDR)
    JW6601A 16-in-1 Mini Optical Time-Domain Reflectometer (OTDR)
    Optical Fusion Splicer with 4.3-inch LCD Touch Screen
    JW4106S Optical Fusion Splicer with 4.3-inch LCD Touch Screen
    Handheld Optical Fiber Identifier
    JW3306E Handheld Optical Fiber Identifier
    Shanghai Joinwit Optoelectronic Tech, Co., Ltd.
    joinwit@joinwit.com
    +86-21 64357213
    Benchtop Fiber Optic Test Equipment
    • Polarization Measurement
    • Polarity Testing
    • Insertion Loss & Return Loss Testing
    • Optical Power Meter (OPM)
    • Benchtop Light Source
    • Variable Optical Attenuator (VOA)
    Handheld Fiber Optic Test Equipment
    • Handheld Optical Power Meter
    • Handheld Light Source
    • Optical Time-Domain Reflectometer (OTDR)
    • Optical Fusion Splicer
    • Optical Fiber Identifier
    • Visual Fault Locator (VFL)
    • Integrated Fiber Optic Tester
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