Stainless steel water tank manufacturer — OEM & wholesale supply

Our standard MOQ is a 20ft container. We allow mixing different models (Buffer, DHW, Duo tanks) within the same container to help our partners maintain a balanced inventory.

We typically quote on a FOB Shanghai basis. Our factory is located near Hangzhou, which offers excellent logistics to Shanghai Port, one of the world's most efficient shipping hubs.

For standard container orders, our lead time is approximately 30 days from order confirmation and deposit receipt. Custom OEM orders may require additional time depending on the technical specifications.

Yes. We specialize in OEM production. We can customize tank dimensions, connection sizes, insulation thickness, and coil configurations based on your technical drawings or specific requirements.

A buffer tank (HB series) stores heating-circuit water for hydraulic separation, reducing heat pump cycling. A hot water cylinder (HC series) uses an internal SUS316 coil to heat domestic hot water indirectly. The HDC-300 dual coil tank and HW-200+60 duo tank combine both functions in one vessel.

Every tank body is SUS304 stainless steel; DHW coils are SUS316 for higher chloride resistance in mains-fed water. For marine, coastal or high-temperature installations we also supply Duplex 2205, with roughly double the yield strength and PREN of SUS316.

Capacities range from 100L to 500L across buffer tanks (HB-100/150/200), single coil DHW cylinders (HC-200/300/400), the dual coil HDC-300, and the 260L combined HW-200+60 duo tank. Custom capacities outside this range are available on OEM orders.

Yes. All buffer and DHW models are designed for heat pump, solar thermal and biomass systems. The HDC-300's independent upper and lower coils let a heat pump and solar array heat the same tank simultaneously without cross-contaminating the two circuits.