Hot-air Welder Top 3400-B Hot-air Welder & Jointer & Guns

Do you need a machine for welding both thin and thick materials? Top 3400-B is here for your reference. High level product with Leister gun and fan meet your need for big power and fast speed.

Stable perfermance obtains quite long lifetime. Firm and pratical structure design makes operation more easily.

1. Cooperated with the 1st brand Leister, adopts Original imported Leister gun and heating wire, high-level quality obtains stable performance adn lengthens service time to 6-8 years.

2. Equipped with landing gear, handrail, laser and LED, easier movement and  positioning, provides higher precision even for work in night or on uneven ground, avoids any missing welding and deviation.

3. Adjustable wind and speed depending on different needs.

4. Adopt digital constant temperature control system,fluctuation±1 ℃. Display screen, visual clearly.

5. Larger power 3600W,  stronger wind, walk speed can reach 15m/min, suitable not only for thin but also for thick materials.

6. Auto-Dormancy Function protects heating element well and offers better maintenance for longer lifetime.

1. Make the material flat and tight,. take welder to accurate(about 2-4cm), fix two ends by tape or glue on ground.

2.Set temperature and walking speed: Connect power supply, set temperature and speed according to the thickness as shown:

3.Turn the heating switch (yellow one), the machine starts to heat up. Wait around 2 minutes, when actual temperature (PV) same as set temperature(SV), we can start work.

4.Welding positioning. Lap welding pressure(working wheels) wheel edge must be aligned with the upper banner edge , but also aligned with the guide wheel on the banner side edge as below:

5. Lift the handle, make the working wheel on ground as shown

6.Start welding: Pull the heat gun and make the nozzle close to ground then move the nozzle left so that it can place a right position, at that time, the machine will work automatically.

7.During welding, keep hot air nozzle between two overlap pieces. And be sure hot air nozzle and rubber wheel walk in straight line. If not, please adjust by handrail:

8. Finish welding: When we finish these work, pull the handle shake, turn right to move out nozzle until stop rotating and nozzle upwards and locks.

9. Turn off the switch: When finished, turn off the yellow knob, shut off main power supply until the real temperature value is less than 50℃, we can turn off the power.

1. To measure temperature at first, detailed method with 1pc of scrap cloth. Put the cloth quickly next to the nozzle, if burn, it shows this temperature is possible. The effect as following:

2.During operating, if the surface dissolved, scorched or not sticked together, please stop to adjust temperature or speed.

3. During operating, if the welding part is not in right position, please stop to adjust fix position.

4. During operating, make sure materials are flat to stick together smoothly.

5. The hot wind cannot touch the welding-wheel to protect its rubber surface against being burned down.

6. Adjust temperature to zero before turning off the heater. Switch off after 5-10 minutes.