Plastic water tank machines
Vishnu Engineering has been manufacturing plastic water tank machines for over 20 years, and the market feedback has shaped every generation of our design. The machine is purpose-built for producing LLDPE and HDPE water storage tanks from small 500-litre household tanks to large 10,000-litre industrial units. It uses rotational moulding as the core process, which gives finished tanks seamless construction, no weld lines, and the kind of structural consistency you cannot get from blow moulding or injection moulding at these sizes.
The production process is straightforward. Raw material is loaded into the mould, the oven heats it to the correct temperature while the mould rotates on two axes, and the result is a hollow, evenly walled tank. The PLC control system manages temperature, rotation speed, and cycle time automatically operators set the parameters and the machine handles the rest.
This level of automation reduces dependence on skilled labour and makes it practical to maintain consistent quality across multiple shifts.
Tanks produced on Vishnu Engineering’s plastic water tank machine are UV-stabilized, chemically resistant, and food-grade safe when manufactured with the appropriate material grades. They are used in homes, apartment buildings, factories, farms, and commercial complexes across India. If you are entering the plastic tank manufacturing business or scaling an existing operation, this machine gives you the production capacity and quality assurance to compete effectively.
- Purpose-built for water storage tank production
- Produces tanks from 500 to 10,000 litres
- Seamless, weld-free tank construction
- Food-grade material compatibility (LLDPE, HDPE)
- Automated PLC controls for consistent output
- UV-resistant and chemically stable finished products
- Supports both single-layer and multi-layer tank production
- Low scrap rate and minimal material wastage
- Tank Capacity Range: 500 – 10,000 Litres
- Machine Type: Rotational Moulding
- Heating Source: LPG / Gas / Electric
- Cycle Time: 20 – 45 minutes
- Material: LLDPE, HDPE
- Control: PLC-based automatic system
- Operation Mode: Semi-Automatic / Fully Automatic
Applications
Residential overhead and underground water storage
Agricultural water storage for irrigation systems
Industrial process water and chemical storage
Commercial water supply for apartments and complexes
Government and municipal water storage projects
FAQs
Yes, provided that food-grade LLDPE or HDPE material is used. The machine itself does not affect food safety the material grade and its certification determine whether the finished tank is food-grade compliant.
Mould changeover is straightforward. You remove the existing mould from the arm, mount the new mould, and update the cycle parameters in the PLC, and you are ready to run. Our team trains your operators during commissioning so changeovers become routine.
We provide installation, operator training, spare parts supply, and technical support. Our service team has hands-on experience with every machine we manufacture, so when something needs attention, we can diagnose and resolve it quickly.
