 |  | Belt Skimmers |
R.A.W. belt skimmers reduce costs
When it is necessary to remove tramp oils in the coolant tanks of machine tools or to skim off surface oils in ultrasonic, process and chemical baths, industrial washing machines, industrial wastewater collecting tanks, etc. R.A.W. offers the right skimmer.
Compared to disc skimmers, belt skimmers are not dependent on the fluid level. Oils are removed, without any problems, both when the level will rise and fall. R.A.W. belt skimmers are easy to install;
their capacity is high and the oil collection rate is excellent. Adequate belt lengths for different vat heights are available (see formula for calculation of belt lengths).
their capacity is high and the oil collection rate is excellent. Adequate belt lengths for different vat heights are available (see formula for calculation of belt lengths).
The driving rollers of the R.A.W. Belt Skimmers are made from PVC and are resistant against most commercial and industrial chemical substances. The ballast roller is made of stainless steel with a PVC sheathing. Especially the types 300-28 and 400-56 are suited for use in acid and alkaline baths. For these two models a technology for sealing the axle gaskets is employed, in order to avoid a corrosion caused by the corrosive fumes on sensitive parts in the engine and gearbox.
In an environment where explosions may occur the Belt Skimmers must not be used!
In an environment where explosions may occur the Belt Skimmers must not be used!
Below some application fields:
Removing foreign oils (tramp oils*) in coolant tanks increases coolant* lifetime. Machinery operators avoid the risk of infections caused by dirty coolant emulsions/dispersions** and of being exposed to malodours. In order to remove oil and grease from industrial parts in industrial parts cleaning systems (ultrasonic baths, parts washers, etc.) in an optimal way, it is necessary to skim off floating surface oils. In process/chemical baths oils must be removed in order to protect the filter systems. In metalworking plants and food processing plants it is necessary to remove oils before proceeding to the next steps. Industrial plants are required by law to remove oils before disposing of process water.* Coolants are used in the metalworking industry to cool down and lubricate metals during the metal cutting process. The formation of microorganisms (bacteria and fungi) is favoured by the presence of germs in the water, a too low pH value of the emulsion/dispersion, insufficient agitation of the emulsion, impurities coming from outside (tramp oils), etc.
** Tramp oils are undesired oils from the machine tools. Emulsions and dispersions normally used in the metalworking industry are subjected to extremely heavy stress such as introducing tramp oils from the machine tools. If tramp oils float on the surface like a thick cream layer, the emulsion can not breathe. When an emulsion is not able to breathe, it dies and causes malodours.
R.A.W. belt skimmers are characterized by
Excellent quality made of electropolished stainless steel High capacity (99% of the surface oils are removed) Different belt lengths from 400 mm 2.000 mm (with intervals of 100 mm) (see formula for calculation of belt lengths)
Easy installation Low investment costs 2 year warrantyConvincing advantages thanks to the use of R.A.W. belt skimmers
Contamination of emulsion/dispersion caused by tramp oils is extremely reduced Considerably lower disposal costs due to a longer coolant lifetime Better cooling effect of emulsions/dispersions Lower risk of skin diseases Prevention of malodours Prevention of heavy deposits in machine tools Increase of the lifetime of machinery and filter systems R.A.W. belt skimmers clean economically and efficiently.
Formula for the belt length
Formula for type
100-B, 200-B, 200-39, 300-28
(H + 70) x 2 = belt length in mm
Formula for type
400-56
(H + 150) x 2 = belt length in mm
Height of the vat = H
Legal requirements
R.A.W. band skimmers are officially registered to R.A.W. and they meet follwing legal requirements and regulations:
Electrical and Electronic Equipment Act (ElektroG) European directives RoHS (2002/95/EC, Restriction of the use of certain Hazardous Substances) European directives WEEE (2002/96/EC, Waste on Electrical and Electronic Equipment) CE marking (Conformit Europenne)WEEE Reg. No. DE 18408050
