Tank cleaning made easier and safer
29 August 2008
J D Neuhaus air operated hoists, featuring precise load positioning control via pendant hand controllers, have been successfully used for cleaning operations on road and rail-transit tankers. These cleaning operations are also suited to fixed storage containers and even marine transporters.
Tank cleaning made easier and safer
The hoists support the high pressure injection cleaning heads dispensing hot/cold water or steam, incorporating appropriate cleaning solvents where required. Intrinsically safe compressed air power is used for the movement, control and hoisting operations, with the equipment being Ex rated for use where highly volatile liquid or chemicals have been transported or stored in the tanks. Increased spark protection for equipment can be incorporated for operation within hazardous areas.
JDN Mini air hoists belong to category 3 and can work in zone 2 with gases of explosion group IIA. They can be operated in zone 22 with the presence of dusts. Their Ex-denomination is Ex II 3 GD IIA T4.
For heavy duty applications the Profi TI-series hoists are recommended, covering lift capacities from 0.25 to 100 tonnes. The Ex-denomination is Ex II 2 GD IIA T4 / II 3 GD IIB T4.
When supplied with increased spark protection the denomination is Ex II 2 GD IIB T4. With these models the bottom block and load hook are copper coated. For even more severe applications the Profi is available with Ex-denomination EX II 2 GD IIC T4, when the trolley running wheels are additionally made of bronze.
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