
In high-risk environments such as petrochemical plants, mining operations, and hazardous chemical warehouses, standardized explosion-proof products often fall short in adapting to complex operating conditions and individualized requirements. With extensive experience in the explosion-proof field, CNWINNEX centers on the principle of "Empowering Safety through Customization," delivering bespoke explosion-proof component and system solutions that transcend the limitations of standardized products, precisely match each client's unique needs, and fortify safety defenses in hazardous environments with professional expertise.
We boast a dedicated R&D and engineering team with years of deep expertise in explosion-proof technology, possessing full-chain custom service capabilities encompassing requirement analysis, solution design, prototype development, production implementation, installation commissioning, and after-sales maintenance. Clients are spared the hassle of coordinating multiple vendors; we provide one-stop solutions to complex explosion-proof challenges. Whether it involves the precise customization of individual explosion-proof components or integrated solutions for complete Ex systems, we anchor our work in the client's actual operational scenarios, meticulously crafting compliant, reliable, and efficient custom solutions that adhere to GB 3836 series standards and international ATEX and IECEx certification requirements.
Scope of Customization
Leveraging our profound technical expertise and engineering practice, our customization capabilities extend across the following six domains, ensuring precise and reliable solutions for any of your special requirements:
1. Non-Standard Ex Component Customization
We provide a full range of customized components, including flameproof wall-through terminals, Ex junction boxes, Ex glass, Ex control modules, and custom terminal boxes, tailored to specifications, materials, or functions not covered by standard catalogs. Material selection can be adapted to the medium (e.g., SS316L, duplex steel), and specialized heat dissipation structures can be designed for high-temperature environments. Examples include custom threaded flameproof terminals for underground mining and corrosion-resistant Ex components for chemical plants, balancing Ex performance with installation convenience.
2. Integrated Ex System Packaging
We offer deep integration services spanning electrical, instrumentation, and control systems, delivering complete skid-mounted Ex control centers (E-Houses), integrated pressurized analyzer shelters, Ex PLC stations, remote I/O cabinets, and Ex power distribution & intelligent monitoring systems. Systems undergo internal wiring, logic testing, and Ex verification prior to shipment, enabling rapid on-site deployment and significantly shortening project timelines.
3. Extreme Condition Engineering
For extreme operating conditions such as high temperature (+60°C+), high pressure, severe corrosion (offshore platforms), or heavy dust (coal chemical industry), we design specialized Ex structures and material solutions. Examples include corrosion-resistant integrated Ex systems compliant with DNV 2.7-1 standards for offshore drilling platforms and high-impact-resistant Ex communication base stations for mines, ensuring long-term reliable operation under the harshest environments.
4. Legacy Equipment Retrofit & Upgrade
For clients' existing non-Ex or obsolete critical equipment (e.g., imported analyzers, old motors, control panels), we provide compliant Ex retrofit solutions. By adding flameproof enclosures, pressurization systems, or intrinsic safety interfaces, we upgrade the equipment to meet current Ex standards and assist in re-certification, extending asset life and protecting prior investments.
5. Multi-System Deep Integration Engineering
When a single system is insufficient, we take responsibility for the integrated design of multiple disciplines—electrical, instrumentation, HVAC, communication, and security. For instance, we provide a complete Ex monitoring and control system for large compressor skids, or unify fire alarm, video surveillance, and access control into a single Ex security platform, enabling data intercommunication and coordinated response, such as graded control Ex systems for chemical parks.
6. Special Function & Software Customization
Beyond hardware, we offer customized control logic, human-machine interfaces (HMI), and supervisory software. Examples include developing specialized path-planning algorithms for Ex inspection robots, or customizing multi-parameter (pressure, oxygen level, temperature/humidity) safety interlock logic for pressurized cabins, ensuring functionality perfectly aligns with your process requirements.
Why Choose CNWINNEX Custom Solutions?
We understand that every custom project is an act of trust. Here are six core commitments that make CNWINNEX your preferred explosion-proof engineering partner:
1. Seasoned Ex Engineering Team
Our engineering team possesses an average of over ten years of experience in the Ex industry, with profound knowledge of GB, ATEX, IECEx, DNV, and other major standards. We engage from the conceptual stage, conduct on-site surveys, deconstruct core requirements, and optimize designs through 3D simulation, ensuring perfect alignment between product and application. We can also optimize costs based on client needs, achieving an optimal balance of performance and value.
2. End-to-End One-Stop Service
We provide complete turnkey services, from requirement communication and site survey to solution design, precision manufacturing, certification testing, on-site integration and commissioning, and through to ongoing maintenance support. You simply present your needs; CNWINNEX manages the entire process, simplifying project management and reducing communication costs.
3. Products Comply with International & National Ex Standards
All custom products are rigorously designed, manufactured, and verified in strict accordance with authoritative explosion-proof standards, including CNEX, ATEX, and IECEx. Protection levels span the full Ex d IIC, Ex ib IIC series, with ingress protection up to IP67 or higher, enduring extreme conditions like high temperature, humidity, heavy dust, and corrosion—eliminating safety risks at the source. We ensure that every delivered device and system possesses complete Ex compliance, accompanied by corresponding Declarations of Conformity and certification documents.
4. Rigorous Quality & Testing System
Our manufacturing processes strictly adhere to the ISO9001 quality management system. Critical components undergo multiple inspections, including material analysis, pressure testing, surface temperature measurement, and ingress protection verification. We can also perform customized Factory Acceptance Tests (FAT) to simulate site conditions and validate functionality, ensuring delivery quality.
5. Flexible Responsiveness & Fast Delivery
Recognizing the time sensitivity of industrial projects, we leverage modular design concepts and flexible production capabilities to respond quickly to your non-standard requirements. We provide multiple rounds of optimization suggestions during the design phase and synchronize progress updates during production. While maintaining quality, we compress the delivery cycle of custom products to industry-leading levels. Emergency projects can utilize expedited channels to fully support your schedule.
6. Sustainable Technical Support Framework
Our partnership truly begins after delivery. We establish comprehensive engineering archives for each custom solution and provide a phased approach to support:
Warranty Period: Standard technical support and spare parts availability to ensure smooth system operation.
Post-Warranty: Flexible annual maintenance agreements tailored to your needs, covering periodic inspections, preventive maintenance, spare parts supply, and emergency response.
System Upgrades & Modifications: When your process requirements evolve or relevant standards update, we can leverage original design documentation to provide professional assessment, modification solutions, and implementation support—helping you achieve system iteration at optimal cost and extending the value of your investment.
Our Commitment
Whether it involves niche component customization, large-scale system integration, or personalized solutions for special operating conditions, CNWINNEX leverages professional technical expertise, rigorous quality control, and efficient service responsiveness to break through technological barriers and meet the explosion-proof customization needs of diverse industries and scenarios. Choose CNWINNEX Explosion-proof Custom Engineering & Component Solutions—let customized safety solutions become your dedicated guardian in high-risk environments.
CNWINNEX explosion-proof systems are widely deployed in oil & gas, petrochemicals, pharmaceuticals, ports & terminals, mining, power generation, offshore platforms, and other areas where flammable gases or dusts are present. Typical applications include control room climate control, hazardous area logistics and access management, video surveillance & security, pressurized analyzer shelters, robotic inspection, as well as custom explosion-proof enclosures and system integration.
An explosion-proof air conditioner is a specialized HVAC unit designed for hazardous environments where flammable gases, vapors, or combustible dusts are present (e.g., petrochemical plants, gas stations, paint booths, pharmaceutical labs).
The most critical difference from a standard air conditioner lies in “active ignition prevention.” Standard units generate tiny sparks during normal operation – such as when relays open/close, compressors start/stop, or circuits make/break. While safe in normal air, these sparks can be deadly in an explosive atmosphere.
CNWINNEX’s explosion-proof design is based on the T4 temperature class. For high-temperature regions such as the Middle East or areas with extreme summer heat, we offer custom units rated for ambient temperatures up to 60°C (140°F) , ensuring reliable operation without overload in harsh tropical climates. For cold regions, we offer custom units rated for ambient temperatures as low as -50°C (-58°F) , guaranteeing safe operation in extreme arctic conditions.
The explosion-proof rating of CNWINNEX air conditioners is:
Ex 2 G D Ex db ib mb IIB T4 Gb / Ex 2 G D Ex db ib mb IIC T4 Gb / Ex ib mb tb IIIC T130°C Db
●For Gas (G): Ex db ib mb IIC T4 Gb
Suitable for IIC gas groups (including hydrogen, acetylene, etc.), using flameproof (db), intrinsic safety (ib), and encapsulated (mb) combined protection. Temperature class T4 (max surface temperature ≤135°C), Equipment Protection Level Gb.
●For Dust (D): Ex ib mb tb IIIC T130°C Db
Suitable for IIIC conductive dusts, using intrinsic safety (ib), encapsulation (mb), and dust-tight (tb) protection. Maximum surface temperature 130°C, Equipment Protection Level Db.
CNWINNEX products comply with international explosion-proof certification standards such as ISO, CNEX, ATEX, IECEx, SAA, EAC, ensuring safe use in different countries and regions., and BV or DNV (for offshore applications) . Depending on the product type and zone classification, we offer various protection concepts including Ex d, Ex e, Ex ib, and Ex nA, with ingress protection up to IP66/IP67, ensuring safe and compliant operation in hazardous environments worldwide.
Absolutely. Explosion-proof Custom Engineering is our sixth core business. From non-standard Ex components (special material junction boxes, intrinsically safe sensors, etc.) to integrated Ex systems (skid-mounted control rooms, pressurized cabins, legacy equipment retrofitting), we provide full-process custom services covering conceptual design, 3D simulation, compliance certification, manufacturing, and delivery. Simply share your operating parameters and functional needs, and we will engineer a dedicated explosion-proof safety solution for you.
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