ermengineering LRWG-10 User manual

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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www.ermengineering.com 󰞟󰞠󰞡󰞢󰞣info@ermengineering ✆([phone]
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(Original) Use and maintenance manual
Type: Longitudinal profile welding 1500 mm
Model: LRWG-100
IMPORTANT:
Read this user manual and follow the instructions and warnings before operating this device.
Any modification or transformation performed on this machine may cause loss of the
manufacturer’s guarantee and liability.
This manual must always remain near to the machine and visible to all the operating and
maintenance staff, for any future consultation, forming part of the equipment.

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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Index:
Page
-CE Declaration of conformity: ................................................................................................................................................3
-Description: ..................................................................................................................................................................................4
-Technical Characteristics: .......................................................................................................................................................4
-Standard equipment: ................................................................................................................................................................4
-Warnings and safety:.................................................................................................................................................................4
-Installation and start-up:.........................................................................................................................................................5
-Electrical Connection: ...............................................................................................................................................................6
-Using instructions: .....................................................................................................................................................................7
-Grinding and gluing:............................................................................................................................................................... 13
-Care and maintenance ........................................................................................................................................................... 15
-Electrical drawings: ................................................................................................................................................................ 16
-Spare parts:................................................................................................................................................................................ 20

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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-CE Declaration of conformity:
WE DECLARE, under our responsibility, that the machine:
- Type: Longitudinal profile welder
- Brand: ERM Engineering
- Model: LRWG-100
- Serial No.: xxxxxx
- Manufacturer date: 2021
Inspired by the directives of the Official Journal of the European Communities:
2006/42/CE Machinery Directive
2014/35/UE Low Voltage Directive
2014/30/UE Electromagnetic Compatibility Directive
Complies with the design and construction specifications of the European Standards on General
Machine Safety:
EN 349 –EN 614-1 –EN 614-2 –EN 12100 –EN 11161-1 - EN 1005-1 –EN 1005-2 –EN
1005-3 - EN 1005-4 –EN 13849-1 –EN 13849-2 –EN 894-3 –EN 13850 - EN 13857 –EN
61310-1 EN 60204-1 - EN 14118 - EN 14120 –EN 13732-1
General Manager: Eduardo Ramos Martínez
Arenys de Munt (Barcelona)-SPAIN
Date: 2021/08

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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-Description:
Continuous longitudinal profile welder for conveyor belts using a jet of hot air at the point of
intersection of the two materials. Fitted with speed, temperature and pressure controls for
different types of material.
-Technical Characteristics:
•Dimensions: 2180x700x1400 mm (L x W x H)
•Weight 156 kg
•Max. Belt Width 100 mm
•Pulley diameter 150 mm
•Max. Belt Thickness 8 mm
•Leister Welder: 2300 W (1600 X 2)
•Vacuum system: 1100 W
•Power supply: 1x230 V 4.9kW
-Standard equipment:
•One grinding wheel
•One Leister with nozzle
•One glue dispenser
•Vacuum system
-Warnings and safety:
−ERM Engineering recommends the users of this machine to fully read this user’s manual
prior to its use to guarantee safe work.
−It also advises and recommends equipment not being used by unqualified staff who have
not received prior training from ERM Engineering
−A copy of this manual delivered along with the machine must always remain at hand during
its use, both for the production operators as well as the maintenance managers.
NOTE: ERM Engineering shall not be held liable under any case for damage caused by
undue or improper use of this equipment.
−Any repairs or modification of the machine performed by personnel not qualified by ERM
Engineering or use of non-original spare parts provided by persons unrelated to the
company, shall give rise to loss of the manufacturer’s guarantee.
−During use of the machinery and industrial use, people are subject to the risk of damage or
injury by mechanical elements in linear or gyrating movement, high voltage electric

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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components and static components under high temperature, due to which, during design
and construction of its equipment, ERM Engineering. has aimed to reduce and minimise
those risks by including protection devices and safety systems based on the European
Community Council Directives.
-Installation and start-up:
Site the machine in well ventilated places or under a fume exhaust hood.
THE FUMES PRODUCED WHEN WELDING SOME MATERIALS ARE TOXIC AND MAY
CAUSE IRRITATION OF THE RESPIRATORY TRACT.
Place the welder in such a way to simplify placement and removal of continuous belts on the
open side of the machine frame.
Allow sufficient free space for movement of material.
It must also be connected to a compressed air supply through the input to the pressure regulator
located on the left-hand side of the machine. Adjust the input pressure to 6 bar:
Level the machine with four rubber feet:

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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-Electrical Connection:
Connect the machine to a suitable single-phase 230V power supply:
Connect the vacuum system to the grey socket:
Connect the Leister to the red socket from the opposite side:

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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-Using instructions:
Turn on the control box using the general circuit breaker:
After turning on, restart the machine pressing the blue button RESET:
Load the slab in the back shaft and fix the guides:
Pass the belt across the table, pulling up the grinder protection until welding pulley:

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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Adjust the table guides at the belt measure completely in the centre:
Select and change, if necessary, the pulley corresponding to the profile to be processed by the
machine using 17 mm key:
Down the welder pulley using the manual valve:

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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Adjust the welder pressure with regulator:
Load the profile on the top support:
Introduce the profile down the welder pulley:

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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Start the Leister welder by pressing the black wheel located on top and adjust the temperature
rotating this wheel:
NOTE: For perfect welding, the welder should be pre-heated until the temperature digits
will be fixed.
After the welder has been pre-heated, begin welding by pressing the black button to start welder
of valve to rotation while at the same time pressing the green START button on the control panel
to start the motor:
NOTE:
For more information about the Leister’s functions, read the user manual that we have
attached with the machine.

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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During the welding process, it is always possible to change any of the three settings:
temperature, speed and pressure.
All these settings have a direct effect on the quality of the weld, so a test should be performed
before welding the belt just to make sure all the settings are correct.
The position, angle and proximity of the welder is also very important for the temperature
setting. Increasing the distance or angle in relation to the profile reduces the effectiveness of the
bond between the materials:
Change the position of the welder by first loosening the screws and then tightening them again
once it is adjusted:
Also, you can adjust nozzle’s proximity using the knob:

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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Note that any changes made to the temperature will not become effective until a few minutes
have elapsed. Adjusting the welding rate using the control speed potentiometer has immediate
results:
Adjust the pressure by moving the pressure’s control knob located at the welding pulley.
Depending on the thickness of the profile, you can adjust a differential of both pulleys speed
adjusting the potentiometer for such differential:

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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NOTE: When differential potentiometer is 100%, both pulleys rotate at the same speed.
When this value is reduced, the top pulley (profile) turns faster than the bottom pulley
(belt pulley).
-Grinding and gluing:
Turn on the grinding weld by grinding button:
With this control, the vacuum system turns on automatically. Adjust the pressure of this grinding
wheel with the knob.
Turning to the left, you can increase the pressure:
Also, grinder’s speed can be adjusted using the grinder potentiometer:

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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For gluing the belt while the grinding process, install the bottle as shown here using a piece of
material down to avoid that glue falls:
Fix the brass tube using the edge knobs and retire the piece of material. Adjust the pressure with
a top knob:

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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Do the same to remove the glue bottle.
Shut the welder down holding the wheel temperature of the Leister for 5 seconds and allowing it
to operate for about 5 minutes, to cool the heater element.
NOTE: Not completing this cooling process, that is turning off the blower when the heater
element is still hot, could cause the heater element to fuse because of the increased
temperature inside the tube.
-Care and maintenance
•Because various chemical components are used during the welding process, there is an
accumulation of highly corrosive waste in the welding area (rollers, pulleys, guides, etc. and
so they should be cleaned regularly to ensure correct operation.
•Do not grease or lubricate any component of the machine. These components are self-
lubricated, and the mixture of different lubricants could cause jamming or seizing.
•Protect the pulleys from knocks that could mark or damage their profiles as they would
cause imperfections in the welding.
•In the event of unusual noises in the welder, check the condition of the brushes. They have
relative wear.

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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-Electrical drawings:

Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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Longitudinal profile welding
Model: LRWG-100
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Longitudinal profile welding
Model: LRWG-100
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Use and maintenance manual
Longitudinal profile welding
Model: LRWG-100
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-Spare parts: