Give tank cleaning a lift

These lifting devices, which offer precise load placement control through hand pendants, are being used for truck tank cleaning operations. J D Neuhaus air-operated hoists are deployed in a wide variety of transport tank cleaning applications, including road and rail transit tankers and marine transporters.

Typically, injector heads with nozzles are used to clean inside these inherently dirty vessels by dispensing hot/cold water or steam at high pressures. If required, sometimes solvents are also included in the cleaning solution. JDN hoists lift, support and accurately position the injector heads to ensure a thorough clean. For ease of traversing, overhead rail trolleys are mounted to the hoists, to ensure the entire internal area of the tank is efficiently washed and cleaned.

JDN air-operated hoists are Ex-rated, which makes them suitable for deployment wherever highly volatile liquids or chemicals are transported or stored. The equipment also incorporates increased spark protection for use in hazardous areas that are in potentially combustible or explosive atmospheres.

Available with different controls to suit specific customer requirements, Profi TI hoists operate at an air pressure of 4-6 bar and are suitable for loads from 250kg to 100 tonnes. Variable speed control, easy operation, low headroom, sound absorption and insensitivity to dust, humidity and temperatures from -20°C to +70°C are also important factors in favour of the hoists.

For lighter duty applications the JDN Mini works at 6 bar air pressure and can carry loads up to 980kg. The company says this makes for an attractive and economic alternative to hoists driven by other means. Available with lifting heights of 3, 5 and 8 metres, Mini hoists are lightweight for easy handling and feature sensitive lever control (with emergency shut-off valve) so that injector heads can be positioned with precision inside the tank during cleaning. Despite the attractive price tag, the hoists offer much of the functionality of the larger Profi series, such as explosion protection, easy maintenance and suitability for lube-free operation. The standard safety rating for the Mini products is EX II 3 GD IIA T4.