Injection pump and mixer
An injection pump and mixer system is a critical setup used in various engineering applications such as tunneling, mining, construction, geotechnical works, and oil & gas operations. It is designed to mix grout or chemical solutions and then pump them under pressure into soil, rock formations, concrete structures, or behind tunnel linings for purposes like:
Soil stabilization, Crack sealing, Water cutoff, Void filling, Reinforcement of foundations.
A grout injection pump and mixer system delivers precise, high-pressure placement of grouts for soil stabilization, structural repair, tunneling, and foundation work.

Benefits of Using an Injection Pump and Mixer System:
Precise Injection: Controlled pressure and volume ensure accurate placement
Improved Safety: Stabilizes ground and structures
Cost Efficiency: Prevents expensive repairs and delays
Versatility: Works with various grouts: cement, resin, chemical
High Durability: Long-lasting structural reinforcement
Automation Ready: Integrates with monitoring and TBM systems

Working principle of injection pump and mixer:
- Material Preparation: Dry materials (cement, bentonite, etc.) and liquids (water, additives) are loaded.
- Mixing: The mixer blends ingredients into a homogenous slurry or paste.
- Transfer: Mixed grout is transferred to a holding tank or directly to the pump.
- Pressurization: The injection pump pressurizes the grout.
- Injection: Grout is injected through drilled holes or ports into the ground/structure.
- Flushing: After use, the system is flushed to avoid clogging.
