The delivery cylinder is a core pressure-bearing component in the concrete pumping system (e.g., concrete pump trucks, stationary concrete pumps), playing a vital role in the "suction-discharge" cycle of concrete.

It is usually a cylindrical structure made of high-strength alloy steel (e.g., 38CrMoAl) with a precision-machined inner wall. Working with the piston and eyeglass plate, it first draws concrete from the hopper into the cylinder cavity, then pushes the concrete out at high pressure through the distribution valve and delivery pipeline—realizing continuous concrete conveyance.

To resist wear and extend service life, its inner surface often undergoes special treatments (e.g., nitriding, hard chrome plating), ensuring stable performance under long-term high-pressure and abrasive working conditions.

Features:

First of all, it is entirely made of Tianjin Daguancheng Seamless Steel Pipes, which are among the best seamless steel pipes in China.

Second, all of them adopt the quenching and tempering process, which ensures the cylinder barrel has high strength.