High-Pressure Jet Grouting Pump for RJP/MJS Deep Foundation
JNSG series high-pressure grouting pump is specially designed for RJP (High-pressure Jet Grouting Method) and MJS (Multi-directional High-pressure Jet Grouting Method) applications. These methods impose extremely high requirements for pressure stability, precise control, and equipment reliability. Therefore, this high-pressure grouting pump features multiple integrated intelligent control and protection systems to ensure efficient, safe, and trouble-free operation even in complex working conditions.
- Integrated enclosure housing structure effectively protects the equipment from harsh weather conditions, while also facilitating disassembly, maintenance, and lifting.
- Flexible variable-frequency motor configuration with optional 132 kW/185 kW/90 kW available. With integrated flow meters and pressure sensors to provide real-time feedback on rotation speed, slurry density, flow rate, and pressure, enabling precise adjustment and stable output of construction parameters.
- Equipped with comprehensive protection systems, such as ultra-high-pressure automatic shutdown, automatic water-reduction cooling system, and forced plunger lubrication system, providing all-round equipment protection, extending core component service life, and reducing unexpected downtime.
- Application Scenarios
- Specifications
- Customer Cases
The jet grouting pump for RJP/MJS is suitable for high-pressure jet grouting in:
- Ground treatment
- Curtain grouting
- Retaining cofferdams
- Mine leakage plugging
- Shaft lining protection
- Slope anchoring
JNSG-230SV-C High-Pressure Jet Grouting Pump
- Motor: Variable frequency motor
- Motor Power (kW): 185
- Plunger Stroke (mm): 100
- Plunger Dia. (mm): 75
- Pressure (MPa): 45
- Flow Rate (L/min): 230
- Dimensions (mm): 3135×1850×1725
- Weight (kg): 5000
Note: The above parameters are theoretical data based on a medium specific gravity of 1.0.
JNSG-165SV-C High-Pressure Jet Grouting Pump
- Motor: Variable frequency motor
- Motor Power (kW): 132
- Plunger Stroke (mm): 80
- Plunger Dia. (mm): 70
- Pressure (MPa): 43
- Flow Rate (L/min): 165
- Dimensions (mm): 2978×1750×1405
Note: The above parameters are theoretical data based on a medium specific gravity of 1.0.
JNSG-145SV-C High-Pressure Jet Grouting Pump
- Motor: Variable frequency motor
- Max. flow: 145 L/min
- Motor Power (kW): 90
- Plunger Stroke (mm): 80
- Plunger Dia. (mm): 65
- Pressure (MPa): 33
- Flow Rate (L/min): 145
- Dimensions (mm): 2978×1750×1405
Note: The above parameters are theoretical data based on a medium specific gravity of 1.0.
Shanghai metro construction project: high-pressure grouting pumps were used to perform grouting reinforcement, void filling, and water-leakage prevention operations.
In metro construction projects, a tunnel grouting system is used for shield tunnel waterproofing and reinforcement to improve overall structural safety.
Jet grouting pumps enable grout to penetrate soil layers fully, thereby improving foundation bearing capacity and stability.