The core of the GBS-Ex series is “pressurized enclosure (pxb)” explosion-protection technology, integrated with flameproof, increased-safety, intrinsic-safety, dust-protection and encapsulation techniques. The whole machine reaches Ex eb db pxb IIC T5 Gb / Ex eb db pxb tb IIIC T95 ℃ Db with IP6X protection, fully meeting the requirements of Zone 1, 21 and F1 explosive atmospheres. Based on mature industrial robot platforms with payloads from 6 kg to 500 kg, GBS-Ex industrial robots replace operators in spraying, handling, sealed-wall construction and other high-risk processes in petrochemical, coal-mine, chemical, coating and pharmaceutical environments — pushing hazardous industries toward “people retreat, robots advance” safety upgrades.
The GBS explosion-proof robot family covers industrial robots, collaborative robots and AGV/forklifts, developed for flammable and explosive environments in petroleum refining, underground coal mines, chemical production, coating workshops and pharmaceutical plants.
Ordinary equipment sparks or overheats easily in flammable and explosive atmospheres — explosion-proof technology removes the ignition source and meets mandatory safety standards.
Rated payloads from 6 kg to 500 kg with a variety of arm reaches adapt to different applications. The explosion-proof robot body and the explosion-proof power cabinet are engineered and certified independently, and can be purchased separately.
Highly integrated purge-and-compensation system handles each chamber separately: precise purging, precise compensation, simple structure and easy installation — solving multi-chamber leakage compensation in minimal space.
Purge controller, pressure-loss alarm and power-cut integration in one unit: automatic timing, automatic purge, remote RS485 communication, 1 pressure-loss alarm dry contact and 1 interlock shutdown signal, digital display and automatic re-purge after pressure recovery.
Equipped with a purge signal valve to shorten purge time and automatic high-pressure relief to protect the pressurized enclosure.
Certified by an authoritative body for both gas and dust explosion protection, suitable for gas, dust and propellant-explosive environments. Robot body and power cabinet certified separately as required; IIC / IIIC electrical equipment class.
Compact structure, strong load capacity and high repeatability — with dual gas/dust protection and high protection class for strong applicability and reliability in the field.
Standard industrial robots up to 800 kg are systematically explosion-proof designed and retrofitted into robot systems for Zone 1 / 21 hazardous gas and explosive-dust environments, complying with GB/T 3836 series and GB 50058 requirements with ATEX / IECEx certification available.
| Component | Protection Type | Ex Marking | Applicable Zone |
|---|---|---|---|
| Explosion-proof pressurized cabinet | Flameproof + pressurized | Ex db eb pxb IIC T5 Gb / Ex tb IIIC T100 ℃ Db | Gas Zone 1 · Dust Zone 21 |
| Explosion-proof junction box | Increased safety | Ex eb IIC T5 Gb / Ex tb IIIC T100 ℃ Db | Gas Zone 1 · Dust Zone 21 |
| Explosion-proof robot arm | Pressurized | Ex pxb IIC T5 Gb / Ex tb IIIC T100 ℃ Db | Gas Zone 1 · Dust Zone 21 |
* System components of the GBS-Ex explosion-proof industrial robot: explosion-proof pressurized cabinet, junction box, robot arm, purge control system, purge compensation system and pressure-relief unit.
Composite flameproof + pressurized (Ex db eb pxb) design — spark-generating components live in the flameproof chamber, teach-pendant interfaces are protected by pressurization.
| Item | Specification |
|---|---|
| Product name | GBS-Ex explosion-proof industrial robot |
| Series | GBS-IRBEx / GBS-KREx / GBS-iEREx series, etc. |
| Ex marking | Ex eb db pxb mb IIC T5 Gb / Ex eb db pxb tb mb IIIC T95 ℃ Db |
| Protection class | IP6X |
| Applicable zones | Gas Zone 1 / 2, Dust Zone 21 / 22, F1 / F2 |
| Ambient temperature | -20 ℃ ~ +40 ℃ |
| Controlled axes | 4-axis / 6-axis |
| Rated payload | 6 kg – 500 kg (full range) |
| Air source | 150 – 400 L/min, 5 – 8 bar |
| Leakage | ≤ 80 L/min |
| Holding pressure | 250 – 1000 Pa |
| Purge time | ≤ 25 min |
| Protective gas | Dry, clean compressed air or inert gas |
| Certification | Domestic explosion-proof certification; IECEx / ATEX (customizable) |
* Note: specifications are subject to change without prior notice; the final technical parameters shall be those agreed in the order contract.
Every auxiliary device around the robot is equally protected — signals, air and power all pass through certified Ex components.
Increased-safety Ex box (Ex IIB T5 Gb) as the signal relay between the robot and peripheral devices such as PLC and vision systems; all interfaces fitted with explosion-proof cable glands. Cables of specified length (standard or flexible power and signal) with Ex-treated connectors; EtherNET/IP or PROFINET communication configured to project requirements.
Controls the on/off of the purge air circuit. Flameproof, increased-safety and intrinsic-safety structures; housings of cast aluminium alloy, stainless steel or high-strength zinc alloy withstand internal explosion pressure and prevent flame propagation.
Certified connectors for power and signal circuits between the robot body, cabinet and peripherals, maintaining the integrity of the protected circuits.
External (non-intrinsically-safe) switch signals are isolated into intrinsically-safe signals by the board before entering the control module — keeping field wiring compliant inside the hazardous area.
Certified Ex standard components for lighting, power distribution, wiring and cable management around the robot cell.
| Item | Model | Key Specifications |
|---|---|---|
| Explosion-proof intelligent lighting control box | BXK51-K (4G wireless) | Ex db IIB/IIC T6 Gb · Ex tb IIIC T80 ℃ Db · IP66 · WF2 · AC220V 16A · -40~+55 ℃ · up to 40% lighting energy saving with Modbus remote monitoring |
| Pressurized explosion-proof power control cabinet | BXPK-30 | Ex db ib mb pxb IIC T4 Gb · IP65 · WF2 · AC220/380/660 V · 400 A · 20-min purge, pressure held at 70–400 Pa |
| Three-proof (water/dust/corrosion) distribution box | FXMD | IP66 · WF2 · AC220/380 V · up to 630 A · for strong acid/alkali/salt/ammonia/chloride corrosive environments |
| Explosion-proof junction box | BXJ51 / BXJ53 | Ex db IIB/IIC T4–T6 Gb · Ex tb IIIC T80–130 ℃ Db · IP66 · WF2 · up to 200 A (BXJ51) / 600 A (BXJ53) |
| Explosion-proof cable gland | DQM-I / V / VI / T / III / IV | Ex db IIC Gb · Ex eb IIC Gb · Ex tb IIIC Db · IP66 · carbon steel / brass / 304 / 316 · cable Ø5–98 mm |
| Armored cable gland (cold-flow type) | BQM-L | Ex db IIC Gb · Ex eb IIC Gb · Ex tb IIIC Db · IP66 · for wire/braided/tape armored cables · -40~+100 ℃ |
| Explosion-proof flexible conduit | BNG-700 / BNG-1000 | Ex db IIC Gb · Ex eb IIC Gb · Ex tb IIIC Db · IP66 · WF2 · G1/2"–G4" / NPT / M20–M115 · lengths 500 / 700 / 1000 mm |
* Standard parts are used in gas Zone 1/2 (IIA–IIC) and dust Zone 21/22 (IIIA–IIIC) atmospheres; selection is matched to the project hazard classification.
Compliant with GB/T 3836 series national standards, with multiple safety interlocks (pressure, access, power), self-diagnostics and real-time alarm system, plus complete installation, commissioning and operation guidance.
12-month warranty with 4-hour response and 48-hour on-site support.
Full training covering operation, maintenance and fault diagnosis.
Complete technical documentation and 3D model support for integration.
High-level Ex certification with multiple protections; flexible operation on mature robot platforms; overall positive-pressure solution keeps total cost down; easy integration via EtherNET/IP and PROFINET.
Founded in 2013 and headquartered in Shanghai, CNGBS is a national high-tech and “specialized, refined, distinctive, and innovative” enterprise practicing the mission of “making intelligent manufacturing simpler”, providing full life-cycle solutions from robot products and line planning to system integration and after-sales service — including custom explosion-proof and radiation-proof special robots.
