Why is a milk transport tank double-walled?

The insulation between the two walls reduces heat transfer so the milk stays below the standard limit and bacterial growth is controlled.

When is a condenser needed?

On long routes, with lengthy stops, or in hot regions where insulation alone is not enough to keep the temperature low.

What fittings does a milk transport tank use?

Sanitary Tri-Clamp fittings with no dead legs, to minimise product residue and microbial contamination.

Stainless 304 · double-wall with insulation

Design and fabrication of
milk transport tanks hygienic and insulated!

Keeping milk cold and fully meeting transport hygiene requirements

From milking until it reaches the processing plant, raw milk must be kept cold (usually below 4 °C) to keep bacterial growth under control. For this, a milk transport tank is built with a double wall and thermal insulation between the two layers, so changes in outside temperature have little effect on the temperature inside.

Request a quote Specifications

Stainless milk transport tank built by Behineh Ab

Shell material

Food-grade stainless 304

Wall

Double wall with polyurethane insulation

Internal finish

Polished, seamless

Fittings

Sanitary Tri-Clamp

Key features

Double wall with thermal insulation to keep milk cold

Polished, seamless internal surface

Sanitary Tri-Clamp fittings with no dead legs

Internal agitator to keep milk uniform on long hauls

Inspection hatch and sanitary drain valve at the bottom

Optional condenser system for hot routes

Double-wall insulated stainless milk transport tank

Technical details

The internal surface must be fully polished and seamless so that milk residue cannot deposit on it and the tank can be cleaned completely. Inlet and outlet connections are sanitary (Tri-Clamp) so that no connection point leaves a dead space where product residue can collect.

Behineh Ab designs milk transport tanks for the load volume, transport distance and climate along the route, and where needed adds a condenser system for extra cooling on long routes.

Technical specifications

Shell material

Food-grade stainless 304

Wall

Double wall with polyurethane insulation

Internal finish

Polished, seamless

Fittings

Sanitary Tri-Clamp

Accessories

Agitator, inspection hatch, sanitary drain valve

Single, double or triple wall: which suits your route?

A single-wall tank is economical for short routes and quick transfers (milk, liquid oil, flour) but has no thermal protection. A double-wall tank, with an insulated gap between the walls, keeps the temperature steady while raw milk is loaded and unloaded. A triple-wall tank has an extra layer for circulating hot water/steam or an ice-bank system and gives the most stable temperature control.

In terms of volume, tanks mounted on pickups or light trucks usually hold from 700 kg to 2 tonnes, and regional tanks up to 4–5 tonnes, built with one to three loading hatches as needed.

Why is thermal insulation essential for a milk transport tank?

Even a short rise in raw-milk temperature speeds up bacterial growth considerably and can reduce the quality and shelf life of the final product. The double wall, with a polyurethane insulation layer between two stainless skins, keeps heat transfer from outside to a minimum.

Insulation thickness is usually calculated from the transport time and the expected temperature difference between outside and inside; for long routes or hot regions, adding a condenser system is recommended.

Surface finish and sanitary fittings

Any rough weld seam or dead space in the milk's flow path can collect product residue and grow bacteria. That is why all internal welds of a milk transport tank must be polished and the fittings must be sanitary (no open threads).

This surface-finish standard both preserves milk quality in transit and makes cleaning the tank after each unloading quick and simple.

Accessories: agitator, inspection hatch and drain valve

An internal agitator stops milk fat from settling in transit and keeps the product uniform on long hauls. The inspection hatch lets you see and clean the inside without opening the whole structure, and a sanitary drain valve at the bottom ensures complete emptying with no product left behind.