Electron E-COAT+3 Master Base Set, Powder Coating Machine with E-GUN+3 C1

The base set of the E-COAT+3 Master series:

Digital control unit, E-GUN+3 C1 corona handgun and injector in one package. It gets you straight into professional powder coating, with 50 storable recipes, automatic air control and charge regulation that stays precise down into the single-digit microamp range.

Please read before you order: what this set does not include

We would rather tell you now than after delivery. The base set on its own will not let you coat anything yet. It contains everything that conveys, charges and applies the powder, but no powder source. You will also need one of the following:

• a powder hopper with an injector socket (8, 50 or 100 litres), the classic solution if you mainly work with a small number of colours, or
• a box unloader with a suction tube, which lets you draw powder straight from the original container without decanting and without hopper cleaning.

You will find both in this category. If you are unsure which option suits your operation, give us a call. It is usually settled in five minutes.

E-COAT+3 Master control unit

The control unit is the heart of the set. It regulates high voltage, output current and both air streams, so you can concentrate on the workpiece instead of on pressure gauges.

50 recipes instead of setting up by feel

You can store up to 50 parameter sets (P01 to P50). Four are preset at the factory and can be called up directly via buttons B6 to B9:

Recipe	Application	High voltage	Output current
P01	Coating on flat, uncoated material (first coat)	100 kV	100 µA
P02	Coating on already coated material	45 kV	27 µA
P03	Coating on notched and complex surfaces	55 kV	30 µA
P04	Boost mode	120 kV	100 µA

The remaining 46 slots are yours to define. In practice this means you dial in a workpiece properly once, save it, and run exactly the same parameters again months later.

Double trigger and sub-recipes

Every main recipe can be assigned a sub-recipe. Pulling the trigger twice switches between the two, for example from "flat surface" to "complex part" and back, without putting the gun down or walking to the control unit. On a part that combines flat areas with internal corners, that saves several steps at every changeover.

MCF mode for consistent film thickness

As soon as you set the output current below 10 µA, the control unit automatically switches to MCF mode (Micro Charge Feedback). It then takes considerably more current samples per unit of time and regulates the powder charge at micro level. This is exactly what prevents over-coating on edges and back-ionisation inside Faraday cages. The µA value on the display fluctuates while you spray, but the internal setting stays below 10 µA.

Automatic air control

You enter total air volume and powder ratio as a percentage. When you change the ratio, the unit adjusts the supplementary air by itself and keeps the total air volume in the hose constant. If you prefer to work manually, switch to stand-alone mode and set conveying air and atomising air independently.

Further functions of the control unit

• FastPurge: rapid purging of injector, hose and gun path with high-pressure air, triggered either by the menu button on the unit or the "P" button on the gun (hold for 3 seconds in both cases).
• Consumable counters: five freely configurable counters measured in days, with a flashing warning when a wear part is due for replacement.
• Bluetooth: connection to the ElectronApp.
• Standby: if no button is pressed for a while, the display dims to level 0 and wakes up on the next input.
• Network (optional): with the retrofittable Ethernet module (order code B07140513) several Master units can be linked in master/slave operation or connected to an automation system. No network connector is fitted at the factory.
• Calibration factors PCF1 and PCF2: for fine-tuning the minimum powder output and matching several guns within the same system.

E-GUN+3 C1 handgun

The corona gun supplied with the set weighs 495 grams and still sits well in the hand after several hours. Four buttons on the back of the gun give you direct access to powder volume, segment selection, cleaning mode and lighting, so the control unit can stay where it is while you work.

The integrated LED can be switched on and off permanently or set to automatic mode, where it lights up as long as you hold the trigger and switches off by itself ten seconds after you release it. In dark booths and on internal surfaces this makes a noticeable difference.

The C1 is approved for plastic, metallic and enamel powders. On the output side it delivers up to 120 kV at a maximum of 120 µA, protection class IP64, explosion protection II 2 D. The seven-metre connecting cable comfortably covers a normal booth workstation.

E-FEED+3 injector

The injector draws in the powder and conveys it to the gun through the seven-metre antistatic hose (11 mm diameter). It is designed for epoxy and polyester powders at a hose air flow of roughly 65 to 85 l/min. Irregular powder output or spitting at the nozzle almost always indicates insufficient hose air, so increase that value before you take anything apart.

For cleaning, disconnect the injector from the hopper and blow out the body, the hose connection and the powder inlet with oil-free and water-free compressed air. Stubborn residues can be treated with cellulose thinner. Do not use acetone, and never immerse the white solid filters in the filter module in any liquid. Blow them out or replace them.

Scope of delivery

Manufacturer's article code: A06ECM01B+3

• E-COAT+3 Master controller unit
• E-GUN+3 C1 handgun with 7 m cable and LED lighting
• E-FEED+3 injector
• 7 m antistatic powder hose
• Regulator and air distribution unit
• Accessories for the hose connections

Not included: powder hopper or box unloader, compressed air treatment, spray booth, extraction and earthing equipment.

Technical data

Rated input voltage	100-240 VAC, 50-60 Hz
Input power	60 VA
Output voltage to gun	max. 20 Vp-p (gun output up to 120 kV)
Output current to gun	max. 1.5 A (gun output up to 120 µA)
Auxiliary output (AUX)	24 VDC / max. 10 W, 100-240 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	8 mm diameter
Inlet pressure and capacity	5.5-7.0 bar at 150-200 l/min
Air quality	max. 1.4 g/m³ water vapour, max. 0.12 mg/m³ oil
Electrode rinsing air	0-16 l/min (factory setting 2 l/min)
Atomising air	10-75 l/min
Conveying air	10-100 l/min
Total air	20-175 l/min
Powder hose	antistatic, 7 m, 11 mm diameter
Powder air nozzle	1.5 mm diameter
Suitable powders	epoxy and polyester
Gun weight	495 g
Shipping dimensions	37 × 57 × 34 cm
Shipping weight	13 kg
Warranty	2 years against manufacturing and component defects

Powder output with the 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

These are the manufacturer's reference values, measured with an 11 mm hose. Actual output depends on powder type, particle size and hose routing.

Requirements at your workstation

• Earthing below 1 MΩ. Workpiece, booth, hopper and conveyor chain (if used) must be reliably earthed, and within a five-metre radius this applies to every conductive part. The resistance has to be checked weekly. If powder fails to adhere, this is the cause in the vast majority of cases, not the equipment.
• Treated compressed air. A filter regulator upstream of the unit is mandatory. Damp or oily powder cannot be applied cleanly, no matter how good the control system is.
• Extraction and explosion zones. The control unit may only be operated in Zone 22, the gun in the Zone 21 it generates itself. Technical ventilation has to keep the dust concentration below 50 % of the lower explosive limit.
• Conductive footwear, no insulating gloves. The gun is handled earthed. If gloves are necessary, they must be electrically conductive.

If you are just getting started, our guide to powder coating yourself walks through the whole process from pre-treatment to curing. And our article on application systems for powder coatings explains why corona technology excels on flat surfaces and reaches its limits in deep internal corners.

What else you will need

• Powder coating in epoxy or polyester quality, with over 200 colours available from stock
• A curing oven for the final bake
• Heat-resistant tape for masking threads, fits and sealing faces

Master or Pro?

We stock the E-COAT+3 series in two specification levels. The Master, this unit, works with a digital display, 50 recipes, MCF mode and automatic air control. The E-COAT+3 Pro comes with an LED segment display, three factory recipes and manual pressure regulators, delivers up to 100 kV and 100 µA and costs considerably less. If you work with one or two standard colours and do not need recipe management, the Pro is entirely sufficient. We are adding the Pro series to our range shortly, so get in touch if you would prefer to wait for it.

Looking for something smaller for occasional projects? Then take a look at our entry-level models.

Delivery and service

We deliver within Germany in 7 to 10 days and to Austria in 7 to 14 days. At 13 kg the base set ships as a parcel, so no freight forwarder is involved. Wear and spare parts such as nozzles, deflectors, carbon rings, PTFE bushings and injector nozzles are available from us throughout the product service life. Electron states an economic service life of around ten years for the control unit and guarantees spare parts availability over that period.