Explosion-proof crane components by Wimac are used wherever dusts or gases may be present during operation or production. Below are the typical industries our Ex-proof solutions serve — each with the hazardous zones, gas/dust groups and compliance requirements they entail.
Zone 1 · Zone 2
Lifting operations around flammable liquids, vapours and reactive compounds. Ex-proof cranes handle drums, reactor vessels and process equipment without introducing ignition sources to the working atmosphere.
Zone 1 · Zone 2
Maintenance of pumps, valves, exchangers and other heavy process equipment inside refineries — where hydrocarbon vapours create persistent explosive atmospheres requiring full ATEX compliance.
Zone 1 · Zone 2
Compression stations, regulator buildings, LNG terminals and natural gas processing plants — environments where any ignition source could cascade into a major incident. Maximum protection level required.
Zone 1 · Zone 21
Solvent handling, API production and tablet manufacturing involve both flammable vapours and combustible dusts. Hybrid Ex db / Ex tb cranes handle reactor charging, IBC transport and packaging line servicing.
Zone 1 · Zone 2
Anaerobic digesters and biogas facilities produce methane atmospheres. Ex-proof cranes service mixers, pumps and screens without risk of sparking or hot-surface ignition.
Zone 1 · Zone 2
Ethanol vapours during fermentation, distillation and bottling create classified zones. Our Ex-proof cranes lift fermentation vessels, copper stills and barrel pallets safely throughout production.
Zone 21 · Zone 22
Coal mines and mineral processing plants generate combustible dust clouds and methane atmospheres. Group I (M1/M2) and Group III equipment configurations available for underground and surface mining operations.
Zone 2 · Zone 22
Paint shops, varnish facilities, plastics processing, woodworking and grain handling — wherever production releases combustible particulate or solvent vapours, our Ex-proof cranes provide compliant lifting solutions.
Not sure which zone classification applies? Use this quick guide as a starting point, then send us your site details for engineered specification.
| Zone | Atmosphere | Frequency | Required EPL |
|---|---|---|---|
| 0 | Gas / Vapour | Continuously, long periods or frequently | Ga |
| 1 | Gas / Vapour | Likely to occur in normal operation occasionally | Gb |
| 2 | Gas / Vapour | Not likely in normal operation, only short periods | Gc |
| 20 | Combustible Dust | Continuously, long periods or frequently | Da |
| 21 | Combustible Dust | Likely to occur in normal operation occasionally | Db |
| 22 | Combustible Dust | Not likely in normal operation, only short periods | Dc |
