High pumping pressure ,suitable for the grouting of low water-cement and high-concentration mortar.

The grouting pipe is connected with a quick connector ,making it easy to disassemble and clean.

Grouting one board and two linings within 2 hours,and does not occupy the normal construction time of the second lining.

Upgraded technology to improve grouting quality and make tunnel construction easier.

Large cement-sand ratio ,wide range of sand particle size.

Integrating mixing ,storing and grouting for easier operation.

Pumping system is mechanically coordinated ,safe and reliable ,low fault rate and easy maintenance.

Compact structure and flexible movement ,particularly suitable for narrow operation space.

The mold grouting can start grouting when the concrete is initially set, and the grouting pressure is much higher than the grouting pressure after demolding, improving the integrity of the lining concrete and the grouting slurry, and repairing the concrete defects.