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Background information

The need to save water is increasing dramatically worldwide. All sectors are looking for reliable and affordable tank systems for the storage of, among other things, drinking water, waste water, irrigation water, manure, seawater and sludge. Our modularly built corrugated steel tanks offer the solution. Bucon Industries has implemented ground-breaking innovations on a well-known concept and can offer the best and cheapest solution.


Higher S 350 GD steel quality for more strength and tank heights of up to 6.10 metres

1. Newly developed galvanising layer means 70% less zinc use and much higher corrosion resistance. It also prevents white rust
2. The modernest machines of their kind deliver perfect uniformity and quality
3. Environmentally-friendly colour coating in light grey (RAL 7038) and dark green (RAL 6009)
4. Patented bolt set provides 2x stronger connections and fewer bolt sets per tank
5. An improved corrugated profile measuring 76 x 20 mm ensures, even with low steel thickness, greater dimensional sheet stability
6. Available in easy to transport sheet lengths of 2300mm and 3048mm


1. S 350 GD steel quality, which is stronger than usual
2. The corrugated profile is increased from 18 to 20 mm, which makes our tanks considerably firmer and more rigid
3. The patented bolt set can handle a much greater tensile strength and provides twice as strong a connection


The bolts and rings of the BUCOtank® have the same shape as the corrugation of the steel sheets. This achieves a much larger contact surface with the sheets. As a result, the tensile strength that the connection is able to handle is twice as large as with normal bolts. The BUCOtank® bolt sets also ensure faster assembly as they cannot continue running.

Unique galvanisation method

The S350 GD steel is galvanised on both sides to provide protection against rust. The steel’s corrosion resistance is not only determined by the thickness of the coating, but also by the composition. Studies at various universities have clearly shown that 3% magnesium provides greatly improved corrosion protection compared to other products on the market. That is why the BUCOtank® has a unique Magnelis®* galvanising layer that includes 3% magnesium and 3.5% aluminium in addition to zinc. Magnelis® offers the best available protection against rust, even under the most challenging conditions. The patented Magnelis® galvanising method for corrugated steel tanks is available exclusively from Bucon Industries


The Bucon colour coating is organic and is applied immediately after galvanisation. This guarantees perfect adhesion of the coating and a very uniform layer thickness of 55 μm. This high-quality coating ensures long-term protection in aggressive environments. 1. Highest level of rust protection (RC5)
2. Highest level of UV resistance (RUV4)
3. High scratch resistance (40 N)
4. Excellent forming characteristics (1.5T)
5. Extremely reliable and durable
6. Available as standard in light grey (RAL7038) and dark green (RAL6009)


The machines at Bucon Industries are able to make very sharp corners/bends in corrugated sheets without damage. Bucon Industries is therefore the only manufacturer able to make ‘square’ tanks. These are extremely suitable as a drip tray or buffer tank for ancillary water installations.


The BUCOroof® patented corrugated steel roof is a very good and easy to install cover for new and existing silos with a diameter of up to 10 meters. The roof is sufficiently light-proof, draining and so sturdy that it can even be walked on. No extra reinforcements are required on the tank wall for the corrugated steel roof. Available for all tank brands with a minimum sheet thickness of 1 millimetre.

Tank liners

The metal tank construction is made liquid-tight with a prefabricated plastic sail/liner. All tank sails are made to measure for the tank. Different plastics can be used depending on the liquid. The most common materials are Poly Vinyl Chloride (PVC), Polyolefin (PEX), Polypropylene (PP) and Ethylene Propylene Diene Monomer (EPDM). The material thicknesses vary from 0.5 to 1.0 mm and are dependent on the liquid and application.

Tank wall and bottom outlet

The inlet and outlet pipes are preferably connected via the bottom. This is done by means of conical outlet placed in the bottom of the sail. If desired, pipes can also be fed through the tank wall using tank wall connectors. Anti-algae covers High temperatures can accelerate algae growth in the water, especially if residues of fertilisers are still present in the water. To prevent algae growth, we use tension sails (for smaller diameters or when the tanks are inside) and floating sails. Floating closed cover If no water is allowed to enter the tank from the outside, a closed cover is a solution. This prevents incoming debris such as leaves, sand or dust from entering the stored water.

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