Electron E-Coat+3 Master mit Pulverbehälter (50 l Hopper)

The complete powder coating system of the E-COAT+3 Master series:

control unit, Corona manual spray gun, injector, and a 50-liter stainless steel hopper on a mobile trolley. Connect, fill with powder, start coating. This set requires no additional accessories to get started. Free shipping with delivery in 7 to 10 days.

Who this set is suitable for

The 50-liter hopper is the right choice if you mostly work with a few standard colors and process larger quantities in one go: fence elements, frames, chassis, sheet metal parts in series production. A single fill will last you over several working days.

If, on the other hand, you change color shades several times a week, the Multicolor version with box fluidizer/vibrating table is the more economical solution, as it completely eliminates the need to clean the hopper. And if you already own a powder source or want to assemble your system yourself, take a look at the basic set without a container. You can find all variants in our Electron powder coating equipment category.

Fluidization: why the fluid base determines the result

Powder coating is not a bulk material that can simply be vacuumed up. Without pretreatment, it compacts in the container, forms bridges above the suction point, and delivers too much material at times and too little at others to the injector. The result is visible on the component: fluctuating layer thicknesses, spitting at the nozzle, uneven flow.

The fluid base solves this. Compressed air flows evenly from below into the powder bed through a porous plate, maintaining it in a state that behaves like a liquid. As a result, the injector receives the same material density for hours, which forms the basis for the repeatability of stored parameters.

You set the fluidization pressure on the trolley's control panel. Turning the control knob clockwise increases the pressure; the orange and white areas on the scale mark typical operating pressures. On sets with a hopper, fluidization starts automatically as soon as the device is powered on and button B1 is active. Separate switching is not required.

There is one limitation you should keep in mind: excessive fluidization is just as harmful as insufficient fluidization. If the powder is swirled up too strongly, the injector drags air bubbles along, leading to an irregular output. The manufacturer explicitly lists this as a typical cause of errors. When in doubt, turn down the pressure until the surface in the hopper is only working gently.

How far does a single fill go?

There is no general answer here, which is why we break down the math transparently. Assuming a bulk density of 0.5 to 0.7 kg/L and a practical filling volume of around 40 liters (the container is not filled to the brim due to fluidization), 50 liters hold roughly 20 to 28 kilograms of powder.

The coverage follows a fixed formula: Coverage in m²/kg = 1 / (Density in g/cm³ × Layer thickness in µm / 1000). With a typical powder density of 1.5 g/cm³ and a transfer efficiency of 60 to 75%, as is realistic for manual application without recovery, this yields:

Layer thickness	Coverage per kg	Coverage of one fill (approx. 24 kg)
60 µm	6.7 to 8.3 m²	approx. 160 to 200 m²
70 µm	5.7 to 7.1 m²	approx. 140 to 170 m²
80 µm	5.0 to 6.3 m²	approx. 120 to 150 m²

Important: These are rounded estimates, not a guarantee. Actual consumption depends on the component geometry, as complex parts with many edges consume significantly more than flat surfaces. Added to this are the density and grind of the powder, the opacity of the color shade, the frequency of color changes, and whether you recover overspray. For metallic and effect powders, coverage is generally lower. Use this table as a rough guide for demand planning, not as a calculation basis.

Stainless steel and color changing

The body is made of stainless steel, not coated steel. There is a tangible reason for this: hardly any powder adheres to the smooth, uncoated inner wall, and there is no paint layer to roughen or flake off over the years and trap pigments. When switching to a light color shade after a dark one, this is the difference between a clean batch and rework.

A complete color change takes place in three steps: remove residual powder, blow out the fluid base and inner wall with oil- and water-free compressed air, then wipe clean with a damp cloth and allow to dry. The fluid base deserves special attention because fine particles can settle in the porous structure. The powder path from injector to nozzle is blown clean separately via the fast purge mode; to do this, simply hold the "P" button on the gun for three seconds.

When a second hopper pays off

If you regularly switch back and forth between two fixed colors, a second hopper is often the more cost-effective solution than repeating the cleaning procedure every time. You pull the injector, swap the container, and continue working while the first one can be cleaned at your convenience. With three changes per week and fifteen minutes saved each time, the investment quickly pays for itself. We carry matching hoppers in 8, 50, and 100-liter sizes individually.

Mobile trolley with rotating control panel

The trolley carries the control unit, air distribution, and fluidization control as a single unit. The device head swivels up to 55 degrees to the left and right and is secured via the mounting knob on the back. This keeps the display in view regardless of which side you approach the workpiece from.

Together with the seven-meter powder hose, this results in a working radius that is sufficient even for frames, gates, and long profiles. Instead of bringing the component to the system, you roll the system to the component. For bulky parts that are difficult to turn, this is the more practical way.

Control unit and application

The set operates with the digital E-COAT+3 Master control unit and the E-GUN+3 C1 manual spray gun. In short: up to 120 kV and 120 µA, 50 storable recipes with four factory presets, automatic fine regulation mode below 10 µA, recipe selection via double-trigger directly on the gun, and fast rinsing via FastPurge. The gun processes plastic, metallic, and enamel powders and features an integrated LED that can be switched based on trigger action.

How these functions work in detail and what the fine regulation mode means for coating thickness consistency is described in detail in our Electron equipment category overview.

Scope of delivery

Manufacturer part number: A06ECM01H+3

• E-COAT+3 Master Controller unit
• E-GUN+3 C1 manual gun with 7 m cable and LED illumination
• E-FEED+3 injector
• 7 m antistatic powder hose
• Regulator and air distribution unit
• Accessories for hose connections
• 50 L stainless steel powder hopper with fluid base
• Mobile trolley with rotating control panel and fluidization control

Not included: Powder coating powder, compressed air treatment, spray booth, extraction system, and grounding accessories.

Technical specifications

Nominal input voltage	100 to 240 VAC, 50 to 60 Hz
Input power	60 VA
High voltage gun	up to 120 kV
Output current gun	up to 120 µA
Auxiliary output (AUX)	24 VDC / max. 10 W, 100 to 240 VAC / max. 100 W
Protection class control unit	IP54
Protection class gun	IP64
Explosion protection	Control unit II 3(2) D (Zone 22), Gun II 2 D (Zone 21)
Max. surface temperature	85 °C
Compressed air connection	Ø 8 mm
Input pressure and capacity	5.5 to 7.0 bar at 150 to 200 L/min
Air quality	max. 1.4 g/m³ water vapor, max. 0.12 mg/m³ oil
Electrode rinsing	0 to 16 L/min (factory setting 2 L/min)
Fluidizing air	10 to 75 L/min
Conveying air	10 to 100 L/min
Total air	20 to 175 L/min
Powder hopper	50 L, stainless steel, with fluid base
Control panel swivel range	55° left and right
Powder hose	antistatic, 7 m, Ø 11 mm
Powder air nozzle	Ø 1.5 mm
Suitable powders	Epoxy and polyester
Gun weight	495 g
Shipping unit dimensions	60 × 40 × 130 cm
Shipping unit weight	50 kg
Warranty	2 years for manufacturing and component defects

Powder output with E-FEED+3 injector

Conveying air ratio	50 L/min total air	75 L/min	100 L/min
20 %	10 g/min	15 g/min	40 g/min
40 %	30 g/min	85 g/min	155 g/min
60 %	72 g/min	253 g/min	295 g/min
80 %	156 g/min	312 g/min	353 g/min
100 %	225 g/min	355 g/min	425 g/min

Manufacturer target values, measured with a Ø 11 mm hose. Actual output depends on powder type, particle size, and hose routing.

Frequently Asked Questions

Do I mandatory need a booth and an extraction system?

Yes. Electrostatic powder application always generates overspray—powder that does not adhere to the workpiece and remains airborne. Powder-air mixtures are flammable in high enough concentrations, and regulations require technical ventilation that maintains dust concentration below 50% of the lower explosion limit. If this value is unknown, a reference value of 10 g/m³ applies.

Additionally, there is the zone classification: The control unit is approved for Zone 22, while the manual gun is approved for Zone 21, which it generates itself. A properly functioning booth is the prerequisite for keeping within these zones in the first place. Furthermore, the manufacturer explicitly stipulates that the control unit may only be turned on when the booth is functioning properly.

In practical terms: You should not perform coating without a booth and extraction system—not even for "just one quick part." If you do not have one yet, speak to us before ordering the device. We will give you an honest assessment of what you need at minimum for your component size.

Can I start coating right away with this set?

Yes. Everything that conveys, charges, and applies powder is included, as is the powder source itself. You only need the infrastructure that must be available at the workplace anyway: treated compressed air supplying 5.5 to 7.0 bar, a grounding resistance under 1 MΩ, a booth with extraction, and a curing oven. Plus the powder coating itself.

The learning curve is manageable. Electron states that users can work productively after less than three minutes of instruction. We think that's a bit ambitious, but the direction is correct: using the preset recipe buttons allows you to achieve usable results without prior parameter knowledge before fine-tuning the details later. However, before your first production run, you should run through the powder output calibration cleanly once, which is described step-by-step in the instruction manual.

How long does a color change take with the 50-liter hopper?

That depends on what you are changing. For the powder path comprising injector, hose, and gun, Electron lists under 25 seconds using the fast purge mode. The hopper itself takes more time: emptying, blowing out, wiping clean, and drying realistically cost ten to twenty minutes if you want a clean result.

For frequent changes, either a second hopper for swapping or the Multicolor model with a box fluidizer (coating directly from the original box) is worth considering.

Can I retrofit to box fluidization later?

In principle, yes; the control unit supports both operating modes and simply needs to be reconfigured in the setup menu. What you will need are a suction tube and the matching trolley structure. Whether that is cost-effective compared to buying the Multicolor variant up front depends on the scope. Ask us beforehand, and we will calculate it with you.

What else you will need

• Powder coating paint in epoxy or polyester quality, over 200 color shades in stock
• A powder curing oven for baking
• Heat-resistant masking tape for masking threads, fits, and sealing surfaces

New to the topic? Our DIY powder coating guide walks you through the entire process.

Master or Pro?

The E-COAT+3 Pro covers the same form factor with a 50-liter hopper, but works with an LED segment display and manual pressure gauge regulators instead of digital air control, delivering up to 100 kV instead of 120 kV. For consistent applications using one or two colors, this is sufficient. We will be adding the Pro series shortly—let us know if you would like us to notify you.

Delivery and service

We deliver within Germany in 7 to 10 days, free of charge. Shipping to Austria takes 7 to 14 days; for other international destinations, we are happy to provide lead times in advance. The set weighs 50 kg and arrives via freight forwarding. Please plan for a second person or lifting equipment during unloading; delivery is curbside.

We stock wear and spare parts such as nozzles, deflectors, carbon rings, Teflon bushings, and injector nozzles throughout the entire product lifecycle. Electron specifies the economic service life of the control unit at around ten years and guarantees spare parts availability over this period.