LESITE LST620C User manual

Lesite Providing best plastic welding tool
Fuzhou Lesite Plastics Welding Technology Co.,Ltd
Website：www.lesiteweld.com
Email: [e-mail]
Mob:[phone]
Add:No.16 building,
Juyuanzhou Industrial Park,
618# JinshanRoad,
Fuzhou,Fujian,China
Tel:：[phone] or 83818890
Fax：[phone]
Granules Hand Extrusion Welder
LST620C
Manual

Lesite Providing best plastic welding tool
Fuzhou Lesite Plastics Welding Technology Co.,Ltd
Website：www.lesiteweld.com
Email: [e-mail]
Mob:[phone]
Add:No.16 building,
Juyuanzhou Industrial Park,
618# JinshanRoad,
Fuzhou,Fujian,China
Tel:：[phone] or 83818890
Fax：[phone]
1. Company
Fuzhou Lesite Plastics Welding Technology Co., Ltd. is a professional
high-tech enterprise engaged in the development and sales of
electromechanical integration. "Realistic and pragmatic, sincere humility,
excellence, strive for perfection" is adhered to by all employees of the
company. Pursuing efforts to provide users with advanced technology, quality
products, and good service is our consistent purpose. The company has
advanced production and test equipment, and often make technical training for
workers to ensure the advanced technology and equipment, to create good
conditions for producing high-quality and cost-effective product. With a perfect
quality assurance system, from procurement of raw materials, production
processes, factory inspection to ensure that the products can be 100%
qualified out of factory.
We always follow the quality first, user supreme principle. With the best
products into the market, and return the user with the best service, the
company will continue to carry out technical innovation, improve production
processes, improve product quality, and strengthen after-sales service for the
user to eliminate the worries. User's needs are our pursuit. We are sincerely
looking forward to working with you and creating brilliant future..
Fuzhou Lesite Plastics Welding Technology Co., Ltd. will always stand on the
forefront of technology; continue to forge ahead and self-perfection, and firm
with partners towards a better tomorrow.
2. Product Overview
LST620 serial is a new type of granules hand extrusion welder which is based
on the summary of ten years of industry application experience. This hand
extrusion welder is the first type which applied with granules feeding barrel in
domestic market. It has reached or exceeded the same type products of
oversea, filling the domestic blank. The major components (hot air gun and
drive motor) are made of imported brand-name accessories, stable
performance, and long service life; there are two independent systems, one is
for preheating raw material, the other is for heating granules. Reasonable
structure, convenient operation, continuous welding, high working efficiency,

Lesite Providing best plastic welding tool
Fuzhou Lesite Plastics Welding Technology Co.,Ltd
Website：www.lesiteweld.com
Email: [e-mail]
Mob:[phone]
Add:No.16 building,
Juyuanzhou Industrial Park,
618# JinshanRoad,
Fuzhou,Fujian,China
Tel:：[phone] or 83818890
Fax：[phone]
powerful extrusion, to make the weld strength is greatly improved. It is the ideal
product for a variety of thermoplastic welding processing.
This product is with two major components preheating raw materials hot air
part and granules extrusion part - hot air part with adjustable temperature
controller to heat automatically and extrusion part with independent
thermostatic heating control system to send hot air independently. It is easy to
adjust extrusion speed and use screw extruding for powerful extrusion
pressure. Using 220v power supply uniformly to weld plastic sheets, tube and
other thermoplastic products, especially for both ends of large diameter hollow
wall pipe, producing pipe and repairing pipe and so on.
Available welding materials: thermoplastic HDPE, PP, PVDF, especially PE.
Do not apply in a conductive plastic (PE-EL), or cause the machine to
produce a conductive short-circuit.
Replacement of the different welding shoes can be applied for:
1) Plastic container’s welding, stitching, etc;
2) The large diameter plastic pipe’s welding, repairing, splicing, sealing, etc.;
3) The thicker plastic membranes, geo membrane splicing, patching and so on.
3. Main technical parameters:
Model
LST620C
Voltage
220V
Frequency
50 / 60 Hz
Extruding Motor
Power
1300W
Hot Air Power
1600W
Granules Heating
Power
800W
Air Temp
20-620℃Adjustable
Extruding Temp
220-380℃Adjustable
Extruding Volume
3.5 Kg/h
Net Weight
8.0Kg
Driving Motor
Metabo

Lesite Providing best plastic welding tool
Fuzhou Lesite Plastics Welding Technology Co.,Ltd
Website：www.lesiteweld.com
Email: [e-mail]
Mob:[phone]
Add:No.16 building,
Juyuanzhou Industrial Park,
618# JinshanRoad,
Fuzhou,Fujian,China
Tel:：[phone] or 83818890
Fax：[phone]
4.Appearance：
5. Operation Steps:
1. Put the hand extruder on the shelf, install the handle, and plug in the mains
plug.
2. Open the control box switch, welding temperature is generally set at 300 °
C-340° C, when the temperature is below 270 ° C, the motor switches off, you
cannot start, when the temperature reaches 270 ° C, the motor switch is turned
on, you can start properly. Open the hot air machine power switch, thermostat
knob, heated a few minutes to operate.
3. The right hand pulls the motor switch, the motor starts to rotate. The new
tool noise, probably it mostly is relevant to the resonance between the tool and
the base or the close of the parts inside the tool. To check if the motor is very
smooth, and the internal sound disappears after sending welding granules.
4. It is better to re-standby 5 to 6 minutes after ensuring the motor can be
started. Then put welding granules into barrel to operate. Adjust the
temperature carefully depending on the thermoplastic case.
5. Motor’s rotating speed is fast without granules and will become heavier
when sending granules, if it becomes very hard to be operated, please stop it,
probably because of short screw heating time or low temperature.
6. Different welding methods require different welding shoes; our company

Lesite Providing best plastic welding tool
Fuzhou Lesite Plastics Welding Technology Co.,Ltd
Website：www.lesiteweld.com
Email: [e-mail]
Mob:[phone]
Add:No.16 building,
Juyuanzhou Industrial Park,
618# JinshanRoad,
Fuzhou,Fujian,China
Tel:：[phone] or 83818890
Fax：[phone]
provides a standard shoe.
7. Need pressure on machine then can be pressurized on the welding seam.
Extruding some plastic material to heat nozzle, then make welding surface
smooth.
8. Welding speed, extruding angle, nozzle structure will determine welding
seam’s looking, but the most important thing is air temperature and air volume.
It determines welding strength. Usually hot air temperature is 260 ~
400 ℃.Certainly, the faster welding speed, the higher required temperature.
9. Hot air with the welder moves. It is alright as long as can make the surface
to be welded after the hot air blowing. The higher temperature of the welding is
not the better. Select the correct temperature is very important.
10. Please do not knock when replace the PTFE welding head. It is better to
heat then take down.。
11. Hot air motor carbon brush life is about 800 hours, attention to early
replacement; do not wait until the carbon brushes to run out.
12. When shutdown the machine, please switch hot air thermostat knob to the
minimum, a few minutes blowing before they shut down the hot air machine.
13. Retain a little of welding granules when shutdown the machine to avoid
extruder screw’s damage.
14. Clean up welding nozzle when shut down machine.
6. Product Features：
Imported hot air welding torch and imported driven system, high
temperature, big torque, long service life, stable performance.
Feeding granules: cost-effective, without cutting process, low noise,
extruding volume can be controlled 1-3.5kg/h.
Light weight, easy to handled and available to operation at different
angles.
Double heating systems: granules feeding heating system and hot air
heating system make sure the best welding quality.
Microcomputer chip controller makes easy operation and powerful
protection function.
Extruding motor will shut down automatically if it has not reached the
preset melting temperature, which avoids loss caused by operating mistakes.
The 360-degree rotating hot air welding nozzle can be applied to different
needs.
Plastic granules feeding barrel makes extruding volume largely and being
operated easily.
It is used in the tank and pipe and is comply with Part 4 of the DVS

Lesite Providing best plastic welding tool
Fuzhou Lesite Plastics Welding Technology Co.,Ltd
Website：www.lesiteweld.com
Email: [e-mail]
Mob:[phone]
Add:No.16 building,
Juyuanzhou Industrial Park,
618# JinshanRoad,
Fuzhou,Fujian,China
Tel:：[phone] or 83818890
Fax：[phone]
standard (Germany Welding Association).
7. Product warranty：
1. This extruder warranty period from the date of delivery for 12 months.
2. After receiving the extruder, user should immediately check whether the
extruder is in good condition, no comments in two days will be as a
complete, through acceptance.
3. No warranty for damage caused by the following circumstances:
a) No feedback for problems in time or not in accordance with the
requirements to take timely measures to cause serious damage;
b) Willful damage or overload;
c) Demolition, repair and maintenance work without the manufacturers
permission ;
d) To make alterations or install attachments without being approved by
the manufacturer;
e) User fails to manual operation;
f) The ceramic heating tube or non-company sold products.
4. Normal wear and tear is not covered under warranty.
5. No warranty for force majeure (lightning, floods, fires, accidents and other
non-manufacturing business reasons) caused by damage.
6. Above terms shall be invalidated after the warranty period.
8. Operation Precautions：
1. Before use the hand extruder: please set the temperature of hot air blower
at size 5 - 6 (Excessive high temperature setting is not recommended, or
you will cause heat reflux), and set the granules heating temperature at
300- 340 ℃ （ the temperature showed on display controller ）. Please
preheat the machine no less than 6 minutes in summer and no less than 8
minutes in winter before you start to work this machine.
(Adjust the temperature carefully depending on the thermoplastic case.)
2. When the device is working, any metal part is prohibited to touch; otherwise
there will be danger of burns.

Lesite Providing best plastic welding tool
Fuzhou Lesite Plastics Welding Technology Co.,Ltd
Website：www.lesiteweld.com
Email: [e-mail]
Mob:[phone]
Add:No.16 building,
Juyuanzhou Industrial Park,
618# JinshanRoad,
Fuzhou,Fujian,China
Tel:：[phone] or 83818890
Fax：[phone]
Hand extruder use in process: if it needs to stop the machine in period of
time or not use for a long time, please clean up all the granules in the barrel
and extrude out all leftover material and then shutdown the machine; if the
machine needs to be used in snatches, please switch the granules heating
temperature down to about 200℃and set the hot air blower at size 2. And
then switch back to operation temperature and start to do welding work
after the current temperature reach setting temperature in 2 minutes.
3. After stop using or before using this machine, please make sure the
welding nozzle is clean without plastic, otherwise, it will seize up melted
material inside the machine, which cause materials back-flow and spray.
Back-flow can damage the device, and spray can be the danger of burns.
Hand extruder after use: knob the hot air blower temperature to zero point
after use, cold airing 3-5 minutes to cool down completely, then turn the
power off and keep them well. Clean the air inlet regularly to keep the filter
clean, smooth into wind.
4. The device is turned on, there must be supervised, or may cause
equipment damage and cause a fire hazard.
5. Our hand extruders possess motor cold start protection: when the
temperature reaches below 270 ° C, the motor switches off to avoid of
motor damage cause by disoperation；Metabo extruding motor has a tap
positions . It has been set in “6” position properly. Any adjustment is not
recommended, otherwise, it may cause improper use and motor damage
which caused by large resistance.