A peristaltic grout pump is the go-to solution for mining, tunneling, and civil construction teams that need reliable, low-maintenance transfer of abrasive cement slurries – discover how to choose and operate one effectively.
Table of Contents
- What Is a Peristaltic Grout Pump?
- How Does a Peristaltic Grout Pump Work?
- Key Applications in Mining, Tunneling, and Construction
- How to Select the Right Peristaltic Grout Pump
- Frequently Asked Questions
- Pump Type Comparison
- AMIX Systems Peristaltic Pump Solutions
- How to Operate a Peristaltic Grout Pump in 5 Steps
- The Bottom Line
- Sources & Citations
Article Snapshot
A peristaltic grout pump is a rotary positive displacement pump that moves cement-based slurries by squeezing a flexible hose in sequence, with no mechanical contact between the pumped material and internal components. This design resists abrasion, enables precise metering, and handles high-viscosity grout without seals or valves to service.
By the Numbers
- The global grout pump market was valued at US$1.4 billion in 2026 and is projected to reach US$1.7 billion by 2033, at a CAGR of 2.8% (Persistence Market Research, 2026)[1]
- One peristaltic grout pump model (PERISTALTIC PUMP T-150) delivers a maximum discharge rate of 800 L/min at no pressure as of 2026 (Sagami Servo, 2026)[2]
- One rotary peristaltic grout pump model achieves a maximum discharge pressure range of 1.5 to 2.0 MPa as of 2026 (Sagami Servo, 2026)[2]
- One commercial peristaltic pump line provides flow rates up to 115 m³/hr as of July 2024 (Sepro Systems, 2024)[3]
What Is a Peristaltic Grout Pump?
A peristaltic grout pump is a rotary positive displacement pump that conveys cement slurries, grout, and abrasive mixtures entirely through a flexible hose, with no contact between the pumped fluid and the pump’s mechanical drive components. As North Ridge Pumps describes it, “a peristaltic pump, also called a squeeze pump or hose pump, is a type of rotary positive displacement pump” (North Ridge Pumps, 2026)[4]. The only wetted part is the hose itself, which means abrasive and corrosive materials never touch bearings, seals, or impellers.
Peristaltic grout pumps are purpose-built for the demanding transfer of cement-based grout, cementitious backfill, micro-fine cement slurry, chemical grout, and similar high-solids materials common in mining, tunneling, and heavy civil construction. AMIX Systems designs and supplies peristaltic pump solutions specifically engineered for these environments, where downtime directly affects project schedules and safety.
The defining characteristic of peristaltic grout pump technology is its separation of the pumping mechanism from the pumped fluid. Rollers or shoes on a rotating wheel compress the hose in a rolling sequence, pushing fluid forward in a positive displacement action. When the compression is released, the hose returns to its original shape and draws in fresh material. This squeeze-and-release cycle generates consistent, measurable flow without the pressure spikes associated with diaphragm or piston designs.
Because the hose is the only component that contacts abrasive grout, maintenance is straightforward: when the hose shows wear, it is replaced as a single item. No shaft seals, inlet valves, or outlet check valves require servicing. This characteristic makes peristaltic hose pump technology one of the most operator-friendly options for cement grouting applications in construction and ground improvement projects.
How Does a Peristaltic Grout Pump Work?
A peristaltic grout pump works by using a rotating element fitted with rollers or compression shoes to progressively squeeze a reinforced elastomeric hose around the interior of a circular housing, pushing grout or slurry along the hose from inlet to outlet in a smooth, continuous flow. Understanding this operating principle helps engineers and contractors select the right equipment and troubleshoot performance issues on site.
The hose is the functional heart of the pump. It is manufactured from reinforced natural rubber, EPDM, or other elastomers selected for compatibility with cement, bentonite, chemical grout, and abrasive slurries. The hose sits in a circular channel, and as the rotor turns, each roller or shoe creates a sealed occlusion that travels along the hose’s length. Grout trapped ahead of the occlusion is pushed forward; behind it, a partial vacuum draws fresh material from the hopper or mixer.
Flow rate in a cement grout squeeze pump is controlled by adjusting rotor speed, through a variable-speed drive. This gives operators precise metering capability – AMIX Systems’ Peristaltic Pumps deliver very high accurate metering of plus or minus 1%, which is important in applications such as crib bag grouting, annulus grouting for tunnel boring machines, and high-volume cemented rock fill where mix ratios must be consistent for structural integrity and safety.
Discharge pressure is a key specification when sizing a peristaltic grout pump for deep injection, high-pressure curtain grouting, or TBM segment backfilling. High-performance models reach pressures that handle demanding injection work – as of 2026, one peristaltic grout pump model achieves a maximum discharge pressure of 2.0 MPa (Sagami Servo, 2026)[2]. AMIX Systems’ own Peristaltic Pumps are rated up to 3 MPa (435 psi), suitable for high-pressure grouting in rock formations and deep mine shaft stabilization.
Self-priming is another operationally important feature of peristaltic grout pump designs. Because the squeeze action creates suction without requiring the pump casing to be flooded, these pumps restart after running dry – a common occurrence during batch changes in automated grout plants. They are also fully reversible, allowing operators to purge blockages by briefly running the pump in reverse without disassembling any fittings.
Key Applications in Mining, Tunneling, and Construction
Peristaltic grout pump technology is the preferred transfer method in applications where abrasive slurries, precise metering, and low maintenance requirements must be achieved simultaneously across mining, tunneling, and heavy civil construction projects worldwide. Understanding where and how these pumps are used helps project teams specify the right capacity and configuration from the outset.
In underground mining, peristaltic hose pumps are central to cemented rock fill (CRF) operations. High-volume CRF requires continuous, accurately metered delivery of cement slurry mixed with aggregate to fill voids left after ore extraction. The abrasive content of CRF mixes would rapidly destroy impeller-based centrifugal pumps, while a peristaltic pump’s hose-only wear characteristic makes it far more economical over long production runs. Operations in British Columbia, Alberta, Saskatchewan, and hard-rock mining regions across North America, Peru, and West Africa commonly deploy this configuration.
Tunneling projects rely on peristaltic grout pump systems for TBM segment backfilling and annulus grouting. As a TBM advances, the annular gap between the tunnel lining segments and the surrounding ground must be filled with grout immediately to prevent ground settlement. The pump must handle sticky, rapidly setting cement-bentonite mixes under varying back-pressures as ground conditions change. Peristaltic pumps excel here because their positive displacement action maintains consistent output even as injection pressure fluctuates. Projects such as urban transit tunnels in Toronto, Montreal, and Dubai have used this approach to meet strict settlement criteria.
Ground improvement applications – including deep soil mixing, jet grouting, and one-trench soil mixing in poor ground conditions – also benefit from peristaltic transfer pumps. In Gulf Coast and Louisiana ground improvement projects where soft soils require stabilization, precise binder delivery at high throughput rates is required. Peristaltic pumps integrate directly downstream of Colloidal Grout Mixers to transfer stabilized slurry to injection rigs or mixing tools without degrading mix quality.
Dam grouting – including curtain grouting, consolidation grouting, and foundation sealing for hydroelectric dams in British Columbia, Quebec, and Washington State – uses peristaltic grout pump equipment for its controllable injection rates. Grout take must be monitored and adjusted in real time during curtain grouting campaigns, and the metering accuracy of a positive displacement hose pump gives dam engineers the control they need to manage Lugeon values and achieve closure criteria. Persistence Market Research notes that peristaltic grout pumps are anticipated to be the fastest-growing segment between 2026 and 2033, fueled by their gentle handling of sensitive mixtures that preserves material integrity (Persistence Market Research, 2026)[1].
How to Select the Right Peristaltic Grout Pump
Selecting a peristaltic grout pump requires matching five core parameters – flow rate, discharge pressure, hose material, drive configuration, and site logistics – to the specific demands of your grouting application. Getting these parameters right at the specification stage prevents costly underperformance or premature hose wear on site.
Flow rate is the starting point. Required output depends on the number of injection points, injection rate per hole, and the pace of the mixing plant upstream. Commercial peristaltic pump lines span a wide range: as of July 2024, one pump line offers flow rates up to 115 m³/hr (Sepro Systems, 2024)[3], while AMIX Systems’ own Peristaltic Pumps cover a range from 1.8 m³/hr (8 gpm) up to 53 m³/hr (232 gpm) in standard configurations. Always size with a margin above the peak process demand to avoid running the pump at maximum speed continuously, which accelerates hose wear.
Discharge pressure must be matched to the maximum injection pressure expected in the ground or structure being grouted. High-pressure rock grouting and deep foundation applications require pumps rated for sustained pressures above 1.5 MPa. For lower-pressure applications such as void filling or segment backfilling where ground pressures are modest, a pump rated to 0.8 to 1.0 MPa suffices and will have a longer hose service life because it operates well within its pressure rating.
Hose material selection depends on the chemical nature of the grout being pumped. Natural rubber hoses suit most Portland cement and bentonite slurries. EPDM or nitrile hoses are preferred when chemical admixtures, accelerators, or aggressive agents are present in the mix. Confirm compatibility with your admixture supplier before specifying hose material, as the wrong elastomer can swell or degrade rapidly when exposed to certain chemical grouts.
Drive configuration – electric motor with variable frequency drive (VFD), hydraulic motor, or diesel-driven – is determined by power availability at the site. Remote mining and tunneling sites often lack reliable three-phase power, making hydraulic or diesel-driven rotary grout pump configurations practical. Where grid power is available, electric drives with VFDs offer the finest speed control and lowest operating cost.
Site logistics, including containerized or skid-mounted configurations, affect how quickly the pump can be mobilized, set up, and recommissioned between batches or project stages. Modular pump designs integrate into grout plants more easily and can be transported in standard shipping containers to remote sites in Canada, Australia, the Middle East, or South America without specialist transport arrangements. The Typhoon AGP Rental system from AMIX Systems, for instance, combines containerized mixing and pumping in a single deployable unit for projects with finite start-stop durations.
Your Most Common Questions
What is a peristaltic grout pump used for in construction and mining?
A peristaltic grout pump transfers cement slurries, cementitious backfill, chemical grout, and abrasive mixtures in construction and mining applications where precise metering and low maintenance are required. The pump’s hose-based design protects internal components from abrasive wear, making it suitable for continuous-duty grouting operations that would rapidly destroy conventional pump types.
In construction, peristaltic grout pump equipment serves ground improvement programmes such as deep soil mixing, jet grouting, and one-trench soil mixing, where binder slurry must be delivered at accurate, consistent rates to each mixing rig or injection tool. In tunneling, these pumps handle TBM annulus grouting and segment backfilling, injecting fast-setting grout mixes under the varying back-pressures encountered as ground conditions change along the tunnel alignment.
Underground mining uses peristaltic pump technology for cemented rock fill operations, where high-solids abrasive mixes are pumped continuously to fill stope voids. Dam engineers rely on peristaltic grout pump systems for curtain grouting and foundation sealing, where controlled injection rates are required to achieve closure criteria without hydraulic fracturing of the formation. The pump’s positive displacement action, combined with variable-speed control, gives operators the metering precision these sensitive applications demand.
What are the main advantages of a peristaltic grout pump over a piston or diaphragm pump?
A peristaltic grout pump offers simpler maintenance, better handling of abrasive and high-solids slurries, self-priming capability, and the ability to run dry without damage compared to piston and diaphragm pumps. These differences make peristaltic pumps more economical over the project lifecycle in most grouting applications.
Piston and diaphragm pumps require inlet and outlet check valves that wear rapidly when abrasive cement grout passes through them. Replacing these valves on a busy site is time-consuming and increases downtime. A peristaltic grout pump eliminates valves entirely – the only wear item is the hose, which is replaced in the field without special tools or precision alignment work. This gives site crews a faster maintenance turnaround and reduces the inventory of spare parts that must be kept on site.
Diaphragm pumps are also susceptible to cavitation and air locking when suction conditions are imperfect, particularly when pumping thick grout mixes at low inlet pressures. Peristaltic pumps are inherently self-priming and handle entrained air without losing prime, which is an advantage during the batch transitions common in automated grout plants. The smooth, continuous flow profile of a peristaltic pump reduces pressure surges in the injection line, improving injection control and reducing the risk of hydraulic fracturing in sensitive grouting applications.
How long does a peristaltic grout pump hose last before replacement is needed?
Peristaltic grout pump hose life depends on the abrasiveness of the mix, operating pressure, pump speed, and hose material, with well-managed operations achieving hundreds to over a thousand operating hours before replacement is required. Monitoring for reduced flow at constant speed and inspecting for external hose cracking or lubricant discolouration are the primary indicators that replacement is approaching.
The most abrasive applications – cemented rock fill with coarse aggregate, sand-cement mortars, or mixes with accelerated set times – impose the greatest mechanical stress on the hose. Running the pump at lower speeds to achieve the required flow rate, rather than at maximum rotor speed, extends hose life significantly by reducing the number of compression cycles per unit volume pumped. Maintaining the correct lubricant level in the pump housing also reduces frictional heat build-up, which degrades elastomers over time.
Hose replacement in a peristaltic grout pump is straightforward compared to repairs on diaphragm or piston pumps. The old hose is removed, the housing is cleaned and inspected, fresh lubricant is applied, and the new hose is fitted and tensioned to specification. Most replacement procedures on mid-size pump models are completed by two operators in one to two hours, minimising production interruption. Keeping one spare hose per pump on site is standard practice in continuous-operation mining and tunneling environments.
Can a peristaltic grout pump handle chemical grout and bentonite slurries as well as cement?
A peristaltic grout pump handles chemical grout, bentonite slurry, micro-fine cement, and standard Portland cement grout when the hose material is compatible with the specific chemicals or minerals being pumped. Hose material selection is the primary variable that determines suitability for non-cementitious fluids.
Bentonite slurries used in diaphragm wall construction, pipe jacking annulus grouting, and HDD utility casing grouting are well-suited to peristaltic transfer pump technology. Bentonite is mildly abrasive and non-corrosive to standard natural rubber hoses, and its thixotropic behaviour – where it flows under shear but gels at rest – is handled well by the positive displacement action of a peristaltic pump. The pump restarts against a gelled column without the air-locking risk that affects centrifugal designs.
Chemical grouting with sodium silicate, polyurethane, acrylamide, or epoxy-based systems requires careful hose selection. These materials are solvents or reactive agents that swell or degrade natural rubber. Specifying EPDM, nitrile, or fluoroelastomer hoses for chemical grout service is important. Consult the pump manufacturer and the chemical grout supplier jointly when specifying hose material for reactive or solvent-based systems, as incompatibility results in rapid hose failure and contamination of the grout with degraded elastomer particles. AMIX Systems’ technical team advises on hose selection for specific chemical grout formulations used in ground improvement and geotechnical applications.
Peristaltic vs. Other Grout Pump Types
Choosing between pump types for a grouting application involves weighing maintenance burden, pressure capability, solids handling, and cost across the project lifecycle. The table below compares peristaltic grout pump technology against three common alternatives to help contractors and engineers make an informed decision.
| Pump Type | Solids Handling | Max Pressure (typical) | Maintenance Complexity | Self-Priming | Best For |
|---|---|---|---|---|---|
| Peristaltic (hose pump) | Excellent – no internal contact with slurry | Up to 3 MPa (AMIX); up to 2.0 MPa in tested models (Sagami Servo, 2026)[2] | Low – hose is only wear item | Yes | Abrasive slurries, CRF, TBM annulus grouting, dam injection |
| Diaphragm pump | Moderate – valves wear with abrasives | Up to 1.5 MPa (typical) | Medium – valves and diaphragm require regular replacement | Yes | Low-abrasion chemical grout, clean cement mixes |
| Piston / plunger pump | Low – abrasives damage seals and valves rapidly | High – up to 10+ MPa | High – seals, packings, and valves require frequent service | No – requires flooded suction | High-pressure rock grouting with clean, low-solids mixes |
| Centrifugal slurry pump | Good for coarse slurries at high volume | Low – under 0.5 MPa per stage | Medium – impeller and liner wear with abrasives | No – requires priming | High-volume, low-pressure slurry transport; not precision metering |
AMIX Systems Peristaltic Pump Solutions
AMIX Systems designs and manufactures Peristaltic Pumps built specifically for the abrasive, high-solids grout mixes used in mining, tunneling, and heavy civil construction. Since 2012, AMIX has engineered pumping solutions that integrate directly with its colloidal grout mixing plants, creating complete, automated batch-and-pump systems for demanding ground improvement and grouting applications worldwide.
The AMIX Peristaltic Pump (APP) range covers flow rates from 1.8 m³/hr (8 gpm) to 53 m³/hr (232 gpm), with pressure capability up to 3 MPa (435 psi) – specifications that cover the majority of underground mining, dam grouting, and tunneling injection requirements. The pumps contain no seals, no valves, and no contact between the mechanical drive and the grout, which means the only replacement part is the hose itself. This directly reduces spare parts inventory, shortens maintenance windows, and cuts long-term operating costs compared to piston or diaphragm alternatives.
AMIX Peristaltic Pumps are available in both standalone configurations and as integrated components within the Typhoon, Cyclone, and Hurricane Series grout plants. For project teams that need high-performance equipment without capital commitment, the Typhoon AGP Rental provides a containerized grout mixing and pumping system delivered to site ready for operation – an approach that has supported urgent dam repair work, underground CRF campaigns, and TBM support on infrastructure projects across Canada, the Middle East, and Southeast Asia.
“We’ve used various grout mixing equipment over the years, but AMIX’s colloidal mixers consistently produce the best quality grout for our tunneling operations. The precision and reliability of their equipment have become essential to our success on infrastructure projects where quality standards are exceptionally strict.” – Operations Director, North American Tunneling Contractor
AMIX also supplies HDC Slurry Pumps for high-volume, lower-pressure slurry transport applications where centrifugal technology is preferred, and a complete range of Complete Mill Pumps for integrated grout plant configurations. To discuss your project’s peristaltic grout pump requirements, contact AMIX Systems at sales@amixsystems.com or call +1 (604) 746-0555.
How to Operate a Peristaltic Grout Pump in 5 Steps
Step 1: Verify Hose Condition and Lubricant Level Before Start-Up
Before starting the pump, inspect the hose visually for cracks, surface checking, or flat spots that indicate fatigue, and confirm that the lubricant level in the pump housing meets the manufacturer’s specification. Insufficient lubricant accelerates frictional heat build-up and dramatically shortens hose service life, while a cracked hose fails under pressure and releases abrasive grout into the pump housing. Correct these conditions before introducing grout to the system.
Step 2: Prime the System with Water Before Introducing Grout
Run clean water through the peristaltic grout pump and injection line before introducing the cement slurry or other grout mix. This confirms that the hose, fittings, and injection circuit are intact and free of blockages, and it pre-wets the hose interior to reduce initial adhesion of cement particles to the elastomer surface. Flush until clear water exits the injection point, then switch to grout without stopping the pump to avoid introducing an air plug at the transition.
Step 3: Set Rotor Speed to Match the Required Injection Rate
Use the variable frequency drive or hydraulic flow control to set rotor speed to the value that delivers the target injection rate for your application – confirmed by a calibration test pumping water into a measuring vessel before grouting begins. For applications requiring high metering accuracy, such as cemented rock fill or annulus grouting, calibrate at the operating pressure, not at zero pressure, because head pressure affects volumetric output in positive displacement pumps. Record the calibration data for quality assurance documentation.
Step 4: Monitor Injection Pressure and Flow Rate Continuously During Operation
Throughout grouting operations, monitor the discharge pressure gauge and flow meter on the peristaltic grout pump for deviations from the baseline established during calibration. A sudden pressure increase at constant speed indicates a downstream blockage or a closing fracture, while a pressure drop at constant speed indicates hose wear or a leak in the injection circuit. Stop the pump immediately if pressure exceeds the rated limit or if flow drops to zero without a corresponding pressure rise, as these conditions indicate imminent hose failure.
Step 5: Flush with Water Immediately After Grouting Is Complete
As soon as the grouting sequence is finished, pump sufficient clean water through the peristaltic grout pump and all associated lines to displace the remaining grout before it begins to set. Cement grout left stationary in the hose and injection circuit will set within the working time of the mix, creating a blockage that requires hose replacement and line flushing under pressure. A flush volume equal to at least two times the internal volume of the hose and pipe circuit is the standard minimum; increase this for fast-setting mixes or long injection runs.
The Bottom Line
A peristaltic grout pump delivers the combination of abrasion resistance, metering precision, and low maintenance that makes it the most practical positive displacement pump choice for cement grouting, cemented rock fill, TBM annulus grouting, and dam injection across mining, tunneling, and heavy civil construction projects. With the global grout pump market projected to grow from US$1.4 billion in 2026 to US$1.7 billion by 2033 (Persistence Market Research, 2026)[1], and peristaltic technology identified as the fastest-growing pump segment, understanding correct selection and operation is increasingly valuable for project engineers and contractors. AMIX Systems has built automated grout mixing and pumping systems around peristaltic technology since 2012, with equipment deployed on mining, tunneling, and dam grouting projects across North America, the Middle East, Australia, and beyond. Contact AMIX Systems today at sales@amixsystems.com, call +1 (604) 746-0555, or visit the AMIX contact page to discuss your peristaltic grout pump requirements with our engineering team. Follow AMIX on LinkedIn and Facebook for project updates and technical resources.
Sources & Citations
- Grout Pump Market Size, Share & Forecast 2033. Persistence Market Research.
https://www.persistencemarketresearch.com/market-research/grout-pump-market.asp - GROUT PUMP. Sagami Servo.
https://www.sagami-servo.co.jp/english/grout-pump/ - Peristaltic Pumps – Sepro Systems. Sepro Systems.
https://www.seprosystems.com/wp-content/uploads/2024/07/PeristalticPumps_Pages.pdf - Abrasive grout transfer pumps for power station. North Ridge Pumps.
https://www.northridgepumps.com/article-415_abrasive-grout-transfer-pumps-for-power-station?catid=72