IMER STEP-120 Mortar Pump – High-Performance Spraying and Pumping for Professional Applications (Made in Italy)
 
The IMER STEP-120 is a powerful, compact, and versatile screw pump machine designed for spraying, grouting, and pumping a wide range of construction materials. Engineered in Italy by IMER Group, a global leader in construction machinery, the STEP-120 is your go-to solution for high-performance mortar applications, fireproofing, cementitious materials, epoxy resins, grouts, and self-leveling compounds.

Perfect for both interior and exterior jobs, this electric pump system delivers superior material flow, precise control, and efficient on-site performance for professional contractors working on commercial buildings, industrial projects, renovations, and infrastructure construction.

🚧 Key Features of the IMER STEP-120 Mortar Pump
 
✅ Heavy-Duty Pumping Power
At the core of the STEP-120 is a rotor-stator screw pump system capable of handling materials with variable viscosities. It provides continuous, low-pulsation output, ideal for smooth and uniform application of plaster, mortar, grout, and similar products.
Flow rate: Up to 25 liters per minute
Pumping distance: Up to 40 meters horizontally, 20 meters vertically (material dependent)
Hopper capacity: 120 liters

✅ Multifunctional Performance
The IMER STEP-120 is built for multi-material handling, making it one of the most versatile pumps in its category. It can process a wide variety of pre-mixed or site-mixed products, including:
Cementitious and lime-based mortars
Fireproofing and insulation materials
Self-leveling underlayments and screeds
Epoxy and polyurethane grouts (2K systems with optional kits)
Tile adhesives, plasters, and repair mortars

✅ Compact and Mobile Design
Despite its power, the STEP-120 features a compact footprint, allowing for easy transport and maneuverability in tight job sites, indoor applications, or renovation works. Heavy-duty wheels and a detachable mixer make it convenient for single-operator handling.

✅ Modular System with Mixer Integration
The STEP-120 can be paired with an IMER vertical mixer for fully integrated mixing and pumping, offering a closed material processing cycle that reduces waste, dust, and clean-up time.

⚙️ Technical Specifications
Feature
Details
Model
IMER STEP-120
Pump Type
Rotor-Stator Screw Pump
Max Output
25 L/min (adjustable)
Max Pumping Distance
40 m horizontal / 20 m vertical
Hopper Capacity
120 L
Motor Power
5.5 kW / 400V Three-Phase
Material Types
Mortar, grout, plaster, epoxy, PU
Weight
Approx. 230 kg
Dimensions (L×W×H)
135 × 72 × 120 cm
Water Connection
Standard ¾"
Origin
Made in Italy

🧱 Common Applications of IMER STEP-120
The STEP-120 is trusted by professionals across a wide range of sectors for medium to large-scale material application tasks:
Plastering and Rendering – Apply gypsum, lime, or cement-based plasters directly to walls with speed and precision.
Fireproofing – Spray fire-retardant mortars in tunnels, high-rise buildings, and industrial structures.
Concrete Repair & Injection – Pump low-viscosity grouts or epoxy-based repair mortars into cracks, voids, and structural elements.
Screeding and Underlayment – Ideal for applying self-leveling compounds and underlayments for flooring installations.
Tile and Masonry Work – Deliver consistent flow for tile adhesives and brick-pointing mortars.

💡 Why Choose the IMER STEP-120?
 
🎯 Precision and Productivity
With variable speed control and an integrated control panel, operators can fine-tune output based on the material type and job requirements. This ensures efficient coverage and minimal waste.
 
🧰 Easy to Use and Maintain
Designed with contractor convenience in mind, the STEP-120 includes a straightforward assembly, easy-access components, and quick-clean hopper and pump parts. Regular maintenance is simple and cost-effective.
 
🛠️ Built to Last
Manufactured in Italy, the STEP-120 is constructed with premium components and corrosion-resistant materials, ensuring a long operational lifespan in even the toughest environments.
 
📦 Versatile Accessories Available
Upgrade your IMER STEP-120 with accessories such as:
Nozzles and spray guns
Remote control systems
Compressor kits for spraying
Epoxy injection adapters
Mixing units for pre-bagged materials

✅ Conclusion: IMER STEP-120 – The Ultimate Mortar Pump for Pros
The IMER STEP-120 stands as a workhorse in modern construction, offering unmatched flexibility and precision in the spraying and pumping of mortar, fireproofing, epoxy, and more. Its durable design, high-performance components, and intelligent features make it the ideal choice for professionals who demand quality, speed, and reliability.

Invest in the IMER STEP-120 and elevate your job site productivity with every pump, spray, or injection.
 
Technical Specifications
 
Learn More: How to do pressure grouting & mortar spraying.
 
What is a wall plaster sprayer?
It is a screw pump that conveys cement or grouting materials to spray on walls, to fill joints, to inject cement grout into piles or anchors, to pump self-leveling floor screeds, to spray traditional mortar and premixed plasters, lime-based plasters, insulating plasters, cement, gypsum plasters, anhydrite products.