Imer IM250 Small 50 Compressor

SKU: 1107546

Regular price: $2,949.00
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Imer IM250 Small 50 Diaphragm Compressor

Dual diaphragm modular plug in compressor designed specially for the Small 50 is an option that gives it tremendous versatility to do many applications.

Features

Includes 53 ft of 1/2-inch diameter air hose with couplings
Spraying fireproofing, repair mortar, stucco base coat (1/8" or more of build-up)
Spraying waterproofing, acrylic stucco, elastomeric coatings 1/8" or less of build-up
The accessory compressor delivers high volume output with low pressure
This ensures complete and even material application when spraying
Compressor is needed to allow for spraying of materials
Separate dual fan cooling of the electric motor and compressor allows for continuous duty and a long life
One piece compressor motor crankshaft produces maximum mechanical performance effortlessly
V-Stroke configuration
100% Imer production. Made in Italy

Imer Small 50 Technical Data Power 1 HP | 110V Flow Rate 9 ft³/_min Maximum Pressure 60 PSI

The Imer IM250 Small 50 Compressor is a dedicated, modular air system engineered specifically to transform the IMER Mighty Small 50 pump into a full‑featured spraying and pumping solution for fireproofing, stucco, mortar, grout, and coatings. Designed as an oil‑less, continuous‑flow, low‑pressure, high‑CFM diaphragm compressor, the IM250 delivers the consistent air volume the Small 50 needs to atomize material, control spray patterns, and operate as a truly versatile jobsite machine.

What Is the Imer IM250 Small 50 Compressor?

The Imer IM250 Small 50 Compressor is a plug‑in, dual‑diaphragm electric membrane compressor built exclusively to work with the IMER Mighty Small 50 and Small 50 Plus rotor/stator pumps. It connects directly to the Small 50’s control system so both units function as a single, integrated pumping and spraying platform rather than as separate machines. When the compressor is installed, the Small 50 can not only pump materials but also spray them through appropriate spray guns, hoses, and nozzles for a wide range of applications.

Instead of a generic air compressor, the IM250 is tuned for the pressure and flow characteristics required by plaster, fireproofing, stucco, grout, and similar construction materials. This makes it an essential add‑on for contractors who want to unlock the full potential of their Mighty Small 50 pump.

Key Technical Specifications

The IM250 Small 50 Compressor is designed to be powerful yet compact, matching the portability of the Small 50 pump itself.

Typical technical specs and performance data include:

Compressor type: Electric diaphragm (membrane) compressor, dual‑diaphragm “V‑stroke” configuration.
Power: About 0.75 kW (1 HP) electric motor, depending on configuration.
Air flow: Approximately 250 liters per minute (around 9 CFM), providing high volume at low pressure for spraying materials.
Working pressure: Typically up to about 60 PSI in some descriptions, with machine‑level specs often listing around 45 PSI at 9 CFM for the optional compressor.
Voltage: Available in 115 V / 60 Hz and 230 V / 50–60 Hz versions, matching the Small 50 configurations.
Noise level: Designed to operate below approximately 79 dB when used as the optional compressor on the Small 50 system.

These specifications ensure that the IM250 delivers sufficient air volume and pressure to atomize material through spray guns while remaining compact and jobsite‑friendly.

Designed Specifically for the Mighty Small 50

The IM250 Small 50 Compressor is not a stand‑alone general‑purpose compressor; it is engineered as an integral accessory for the Mighty Small 50 and Mighty Small 50 Plus.

IMER literature highlights that the IM250 is “specifically crafted for IMER Small 50 with integrated controls,” meaning it plugs directly into the pump’s electrical and control system.
On the Mighty Small 50 product sheet, the compressor is listed as an “optional compressor” that works as a synchronized system with the pump: controlling the air at the spray gun automatically turns the pump and compressor on or off.
Fireproofing and stucco kit descriptions emphasize that the optional IM250 Small 50 Compressor is required when the Small 50 is used for spraying applications.

This tight integration allows the operator to manage both material flow and air flow from the gun, providing smooth and responsive spray control on site.

How the IM250 Works with the Small 50 Pump

One of the most important features of the Imer IM250 Small 50 Compressor is how it interacts with the Mighty Small 50 pump to create an intelligent pumping and spraying system.

The IM250 provides continuous air flow for atomizing material at the spray gun, while the Small 50’s rotor/stator pump supplies a smooth and continuous material flow.
With the air valve closed at the gun, the compressor senses back‑pressure and, through the integrated controls, shuts down both itself and the pump motor.
When the operator opens the air valve again, the compressor and pump automatically restart, resuming pumping and spraying from where they left off.

This “air‑controlled start/stop” behavior reduces wear, saves energy, and makes the system easier to operate because the worker controls both functions directly at the gun rather than at the machine.

Oil‑Less, Continuous‑Flow, High‑CFM Design

The IM250 Small 50 Compressor is described as an oil‑less, continuous‑flow, low‑pressure, high‑CFM diaphragm compressor.

Key design benefits:

Oil‑less construction: Eliminates oil carry‑over into the air stream, which is critical when spraying coatings, fireproofing, or cementitious materials where contamination could affect adhesion or finish.
High CFM at low PSI: Optimized for moving a large volume of air at moderate pressures, ideal for spraying and conveying viscous construction materials rather than driving pneumatic tools.
Continuous duty: The compressor is engineered for continuous work cycles, and IMER documents describe the Small 50 system as capable of continuous operation when properly configured.

Because of this design, the IM250 is effectively the “lungs” of the system—supplying the airflow needed to transport and atomize the material consistently over long spraying sessions.

Typical Applications Enabled by the IM250

Adding the Imer IM250 Small 50 Compressor to the Mighty Small 50 or Small 50 Plus significantly expands the machine’s application range.

With the compressor attached and the correct rotor/stator, hoses, and guns, the Small 50 can be used for:

Sprayed fire‑resistive material (SFRM) and fireproofing coatings on steel and concrete.
Spraying stucco, EIFS, and exterior plaster onto residential or commercial facades.
Pumping and spraying mortar and grout for block fill, door jambs, rock walls, and decorative stone work.
Applying floor underlayments and self‑leveling materials over long runs using hoses.
Spraying smoothing compounds, adhesives for insulation systems, and restoration or waterproofing products.

Contractors often pair the Mighty Small 50 with different kits—such as fireproofing, stucco, or mortar kits—where the IM250 compressor is explicitly listed as a required or recommended component for spraying.

Advantages of the IM250 Small 50 Compressor

Choosing the Imer IM250 Small 50 Compressor offers several advantages compared with trying to adapt a generic compressor to the Mighty Small 50.

Purpose‑built integration: The IM250 is wired and controlled to work seamlessly with the Small 50’s inverter‑driven control panel and safety systems.
Automatic system control: The air‑linked start/stop function helps protect the pump and compressor while simplifying operation for field crews.
Correct pressure and volume: High‑CFM, low‑pressure output is ideal for material spraying, avoiding the mismatch in performance that can occur with compressors designed for tools.
Compact and portable: Designed to be as portable as the pump, with weights and dimensions that fit typical jobsite and transport needs.
Proven performance: IMER’s pump catalog and application notes consistently reference the IM250 for demanding setups, including consolidation injections and high‑duty spraying configurations.

These advantages make the IM250 the recommended and often required choice for professionals who want reliable, repeatable results from their Mighty Small 50 system.

Specifications Within the IMER System Documentation

The IM250 appears throughout IMER technical data sheets and pump catalogs as the standard electric membrane compressor for the Small 50 line.

Examples from IMER documentation include:

IMER’s Small 50 EVO and Small 50 Plus technical sheets list “Electric diaphragm compressor IM250” with outputs around 250 l/min at 0.75 kW for 230 V and 115 V models.
The Mighty Small 50 Plus documentation references “IM 250 electric membrane compressor” with 250 l/min airflow and 0.75 kW power, explicitly labeled as an accessory for advanced applications such as consolidation injections and specialized coatings.
The IMER USA pump catalog states that the optional compressor “works as a system with pump where controlling the air turns the pump itself on and off,” and describes a 9 CFM compressor matched to the Small 50 rotor/stator pump output.

This repeated, consistent listing in official documents confirms the IM250’s status as the default compressor solution for the Small 50 range.

When Do You Need the IM250 Small 50 Compressor?

You need the Imer IM250 Small 50 Compressor whenever your Mighty Small 50 is used for spraying rather than just pumping.

For simple pumping applications, such as filling molds or pumping grout without atomizing it, the pump alone may be sufficient.
For any application where material is sprayed through a gun—fireproofing, stucco, EIFS, coatings, or sprayed mortar—the IM250 is required to provide the air stream necessary to atomize and propel the material.
Fireproofing and stucco kit descriptions explicitly note that “the optional IM250 Small 50 Compressor is needed when used for spraying applications,” emphasizing its necessity.

In practice, most contractors who invest in a Mighty Small 50 for spraying will purchase the IM250 compressor at the same time to ensure a complete, compatible system.

Why the Imer IM250 Small 50 Compressor Is Essential for Pros

For professional contractors who rely on the Mighty Small 50 platform, the IM250 Small 50 Compressor is more than an accessory—it is what allows the machine to deliver its full value as a multipurpose pump and sprayer.

By choosing the OEM IM250 compressor, you gain:

A fully integrated system with smart on/off control at the spray gun.
Correctly matched air performance for demanding materials.
Oil‑less, clean air for better finish quality and equipment longevity.
Support and documentation directly from IMER for the entire pump‑compressor system.

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