Optim-Tec | Weldy EX3 Plus Digital Plastic Extrusion Welder Hot Air Gun Extruder Booster Kit

Booster EX3 Plus

- Motor protection with tools digital display

- Ergonomic rotary handle

- High-quality barrel extruder

- Easy to operate

-Economy version Leister Fusion 3C

Technical Data

Voltage	230V
Power	3000W
Frequency	50/60Hz
Air Temperature	360℃
Melt temperature	310℃
Noise LpA（dB）	80
Size	600 x 100 x 220
Weight	7.2kg（include 3m cable）
Welding rod	ø3/ø4
Welding output [kg/h] ø3	PE2.4PP 2.4
Welding output [kg/h] ø4	PE 3.4 PP 3.4

Operation

Turn on：

1. Power on, the screen lights up automatically.

2. Rotate the knob clockwise to adjust the temperature.

The screen displays the heating power percentage and real-time temperature.

3. It is recommended to adjust the heating power within 70~90% based on the ambient temperature.

Actual temperature: 280-310°C.

4. Try to allow for a 10-minute preheating time. Insufficient preheating may trigger the built-in overload protection (5-second automatic reset, which may repeat if triggered).

5. Begin welding.

Turn off：

1.When the power cord is unplugged, the screen turns off.
2.After 3 minutes, the motor stops.
3.When the real-time temperature drops to 60°C,

  a 3-minute countdown icon appears in the upper left corner.
  4.The power percentage shows 0%, and the real-time temperature decreases rapidly.
  5.When turning off, rotate the knob counterclockwise.

Welding shoes (16)

26 CUSTOMER REVIEWERS

5 STARS

4 STARS

3 STARS

2 STARS

1 STARS

26 comments

cksbowlingsales300

Rate :

Simple to clean and maintain. No complicated disassembly needed.

brad-86196

Rate :

Cable is long enough to move around a workbench without an extension cord.

f_jajfe_j72qkcwzax

Rate :

Used it to fix a cracked irrigation pipe—still holding strong after a month.

mapeditor

Rate :

Fan noise is noticeable but not unbearable. Quieter than my old heat gun.

arizona_entrepreneur

Rate :

Preheats in about 10 minutes. Ready to go without long waits.

butlerobrober

Rate :

The handle rotates, which makes overhead welding less awkward. A nice touch.

conchomania

Rate :

Temperature control is accurate enough for PP and PE. Haven’t tried PVC yet.

bradewellingto-0

Rate :

Build quality feels solid for the price. No loose parts or flimsy switches.

heat_2060

Rate :

Works well on polyethylene tanks. Seams hold up under water pressure.

mora_ju_41

Rate :

Came with a decent selection of shoes. Swapping them out is straightforward.

phamt17

Rate :

Lighter than I expected. Comfortable to hold during longer welds.

joo_54819

Rate :

Extrusion is consistent with 4mm rods. No clogging so far after a few jobs.

ceo_romain_ly

Rate :

The digital display is helpful—lets me set the exact temp I need without guessing.

jaldana-us

Rate :

Heats up quickly and maintains a steady temperature. Good for small to medium HDPE repairs.

trigil22

Rate :

Fast shipping, well-packed, and works exactly as described. The booster kit includes everything needed—just plug in, preheat for 10 minutes, and start welding like a pro!

elitede25

Rate :

Great build quality and precise heat control (up to 310°C). I’ve welded both PP and PE sheets with excellent adhesion. Highly recommend for fabricators and DIYers alike!

svengabunny

Rate :

It’s like a budget-friendly Leister Fusion 3C—and it delivers! Consistent output at 3.4 kg/h with 4mm rods, and the motor protection system gives peace of mind during heavy use.

gergonz5526

Rate :

Heats up fast, extrudes smoothly, and the ergonomic rotary handle reduces fatigue during long jobs. Perfect for field repairs on irrigation pipes or chemical tanks.

svengabunny

Rate :

The digital display is a game-changer! I can see real-time temperature and power percentage—no more guessing. Welds on polyethylene tanks are clean, strong, and leak-proof.

MathewBrock

Rate :

Absolutely delighted with my Weldy EX3 Plus Digital Plastic Extrusion Welder! Fast and free shipping, plus it was delivered right to my door. The product is top quality and worked perfectly right out of the box. Highly recommended!