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Rolba MZ

Masko Zoll The unit is built on a Rolba Medium Combi with Masko Zoll-technology. It is based on a proven technology. The vehicle can be used for dewatering and as a Medium Combi.

The product is designed to meet the markets requirements regarding: -Quality/reliability, capacity -Transportation economy -Reduced affliction on roads -Reduced affliction on the purifier -Reduced disposal costs



Vacuum pump:

- Cylindrical in stainless steel.

- Hydraulically driven

- Volume: 13,000 l in 3 compartments.

- Capacity: 15.500 l/min.

High pressure jetting pump: - Type: Pratissoli piston pump. - Hydraulically driven. - Capacity: 122 L / min 150 bar.

- Type: Moro. - Integrated separator designed to achieve optimal effect.

Suction hose reel: - Rotatable storage reel.

Jetting hose reel: - Hose reel holds 60m 1/2“ jetting hose. - Jetting hose mounted in the inner arrangement at the front.

- Holds 50m 3“ suction hose.



- Cabinet on the left side with interior lighting.

- 4 Work lights.

- Everything is in polished stainless sheet that

- 2 Extra reversing lights.

follows the tank when tipping. - The cabinets are equipped with plastic decking at the bottom and lockable rubbersealed hatches.

- 2 Flashing beacons.

Available options: - Adjustable water pressure from radio. - Heated cabinets, jetting hose reels, jetting pump cabinet and valves.

Bild behövs

Tank construction BEHÖVER TEXT

Central control system Protected in lockable stainless cabinet. All electrical equipment in one place.

Control panel In stainless steel box, easy to operate. Switches logically positioned with clear symbols.

Remote control Easy to work with.

Valves Tar text från Medium Combi

Rear end Pivotal suction hose reel.

Masko Zoll-aggregates For the separation of sludge and water. Inspection hatches for easy cleaning.

Sanitary cabinet Heated sanitary cabinet with thermostatically controlled hot water.

Tip function Hydraulic tipping tank for easy debris removal.

High pressure jetting hose reel Contains 60m 1/2� jetting hose. Separate heated cabinet for refilling of water, viewing of water levels and controlling the flushing pressure.

Display Displays volume, frequency of dosing, RPM etc.

Polymer station Dispenses the right amount of polymer/water blend. Situated in a sheltered environment.

Description of dewatering principle The well is emptied in the same way as in a normal sludge drain, meaning the sludge will be put in the front sludge compartment (dewatering compartment). When the sludge is transferred to the dewatering compartment, water mixed with polymer is added. This causes the sludge to form a more solid form. From the dewatering compartment the sludge gets pumped on to the Masko Zoll aggregate where it’s then separated from the water. Through this process the sludge becomes much more dry. It then goes from the aggregate over to the units transport compartment (rear sludge compartment). The reject water goes back into the well through the reject tank. The dewatering compartment holds 4 500 liters and the transport compartment holds 7 500 liters. This volume provides a capacity good enough to drain about 35-40 wells prior to deposition. The time required per well varies depending on the amount of sludge in the well.

Why dewater sludge in the septic well? When a septic well is emptied in the traditional way, the organisms responsible for the biological activity follows the sludge to the deposition site. In the emptied well, the biological process stops almost entirely. When the property owner opens the drain again, the biological purification is so low that large amounts of floating sludge accompany the wastewater into the infiltration system. With Rolbas dewatering system the water is returned to the well so that the self-cleaning process can be maintained at an acceptable level, while the load at the deposition site are significantly reduced.

Transport gains Transporting water is expensive. Dewatering directly at the septic well and refilling of the well’s own water reduces both weight and volume and provide many environmental benefits. When dewatering, a residue of about 10-15% of the wells content remains. This sludge is transferred to a storage space on the car for transport to the deposition. A normal sludge aggregate has a capacity of 4-5 septic wells per deposition. With Rolba MZ dewatering system, the capacity increases to approximately 35 wells before the need to deposit occurs. Therefore, by dewatering the sludge directly at the specific location, transport costs for deposition can be reduced to about one tenth compared to conventional methods.

Deposition advantages In conventional emptying of suction dredgers in sewage plants, large quantities of sludge gets supplied in a short amount of time. This makes for a “shock effect” that can affect small and medium sized sewage plants negatively. Therefore, many municipalities build receiving basins, from which the deposited sludge water is fed out slowly. Dewatering of the external sludge means that the already congested sewage plant can work with the same or with increased capacity henceforth. With the dewatered sludge there’s a possibility to process and prepare the sludge for a reunion to the natural cycle directly without tipping it into the sewage plants basins. We are on track to regaining earlier times “close to nature” advantages. This being done without sacrificing the modern demands of comfort while saving energy from transport which reduces the wear on roads, and of course also reduces the emission of exhaust fumes.

Why Rolba? ROLBA have over 50 years experience in the production of mobile jetting and suction units culminating in our latest models, the SUPER COMBI, MEDIUM COMBI and CITY COMBI. Our staff are long term employees with a wealth of experience and craftsmanship. We pride ourselves in customer care and keep regular contact with our clients seeking to enhance further development of our units. Low noise levels and emissions are key elements of the ROLBA product range. Our mission is to supply products that are operator friendly, highly efficient, with health and safety in mind at all times.

Swedish quality - Rolba are renowned for their vast experience in building suction and high pressure jetting units and their user friendly approach to their designs. - Tank built in stainless steel for a longer life. - Hydraulic tipping tank making it easy for tank cleaning. - Radio control with various functions. - Proportional hydraulics providing fuel economy and low environmental impact.

Contact us ROLBA RoadVacsTM Ltd Telephone: +44 1235 848 544 Fax: +44 1235 538 931 Website: Mr. Gerry Campbell E-mail: Mobile: +44 783 166 5028 Mr. Donal Kearney E-mail: Mobile: +353 86 0400 745

The confidence we have in our products, allows us to offer a 24 month warranty.

Rolba masko zoll  
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