| Rotational molding machine | Seamless hollow plastic tanks, commonly made from polyethylene. | Rotational molding machine, mold, heating and cooling systems, and loading equipment. | Approximately $30,000–$200,000+ per machine or configured line. | Machine size, number of arms, mold dimensions, automation level, and whether molds are included. |
| Large-part blow molding machine | Hollow plastic tanks formed by inflating a heated plastic parison inside a mold. | Extrusion blow molding machine, tank mold, cooling system, and trimming equipment. | Approximately $100,000–$500,000+ for a large-part system. | Maximum tank volume, clamping force, extrusion capacity, mold design, and auxiliary equipment. |
| Stainless-steel panel tank equipment | Sectional tanks assembled from formed stainless-steel panels. | Hydraulic press or panel-forming equipment, cutting tools, welding equipment, and assembly fixtures. | Approximately $20,000–$150,000+ for a selected equipment package. | Panel size and thickness, forming method, welding automation, tooling, and production scope. |
| FRP tank winding equipment | Fiberglass-reinforced plastic tanks made by winding resin-impregnated fiber over a mandrel. | Filament winding machine, mandrel, resin delivery system, curing equipment, and finishing tools. | Approximately $20,000–$150,000+ depending on system configuration. | Tank diameter and length, winding automation, mandrel design, control system, and included accessories. |
| Steel tank fabrication equipment | Welded steel tanks made from cut and formed plate or sheet. | Plate cutting equipment, rolling machine, welding equipment, and tank assembly fixtures. | Approximately $15,000–$100,000+ for a basic to semi-automated package. | Plate thickness, tank dimensions, cutting and welding methods, automation, and safety features. |
| What “water tank making machine” means | A machine or production line used to form, mold, wind, or fabricate components for water tanks. | Equipment varies according to the tank material and manufacturing process; a complete line may also require molds, tooling, utilities, and finishing equipment. | There is no single standard price; the ranges above are indicative equipment estimates. | Confirm material, tank capacity, output target, power supply, installation scope, shipping, and taxes before comparing quotations. |
| Price note: The figures are broad, indicative estimates for machinery sourced from China, not supplier quotations. Actual prices vary with specifications, exchange rates, customization, freight, installation, taxes, and the date of purchase. Request a detailed quotation based on the required tank material, dimensions, and production capacity. |