SUNKKO 737G Dual digital display intelligent precision pulse spot welder Instruction Manual

737G Dual digital display intelligent precision pulse spot welder
Instruction Manual

Thank you for choosing the sunko series of products. These products are designed to make your work more convenient, safe, and efficient. Such that you might become familiar with all the operations of the welder, an instruction manual has been included.
Attention: Please make sure the GFCI (Ground Fault Circuit Interrupter) is up to 60A or more before turning on the spot welder. In order to obtain a good weld effect, please don’t use the active socket, and should be used the wall socket to ensure a stable power supply. Please store this manual in a safe location for both current and future reference.

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Introduction

The SUNKKO 737Gis a precision spot welding machine that is designed to enhance the welding of thin metals without excessive heat buildup.
Parameter
A. Welding part

1. Input Voltage: AC 110V/220V
   Please check your machine’s suitable voltage to use.

2. Primary current: 2A-15A
   Welding current: 50A-800A
   The width of 1 pulse time: 0.5-5ms(Variable) The width of 2 pulse time: 1-10ms(Variable)

B. Net weight: 4.3KG
C. Size: 140x245x200mm
D. Welding thickness: 0.05-0.2mm
(1 pulse: 0.05-0.12mm; 2 pulse: 0.12-0.2mm)
E. Work cycle: less than 20 times in 1 minute for intermittent welding.
Summary

1. Use microchip for controlling precision current to weld in precision.
2. There is a wide range of selecting currents (, 2 pulses) that can be selected to mack your work convenient, safe, and efficient.
3. Controlled by a microcomputer.
4. Welding power can be set and displayed on the Led panel.
5. It is suitable for welding charging the battery pack, button cell leads, hardware to process, etc.

Range Of Application

1. Welding different kinds of rechargeable battery wire lead.
2. Assembling and welding lithium battery and mobile power.
3. Repairing battery packs. 4. Welding lead sheets and wire of hardware parts.

Packing list

1. Machine,
2. Instruction manuar1
3. Warranty card,
4. Foot Pedal,
5. Hex wrench,
6. Welding pins*4
7. 20 or 30A fuse*2

Panel introduction

Operation

1. Please turn off the machine before installing welding pins on.
2. Insert the power cord on the wall socket. Turn on the power switch.
3. Setting “Current” “Pulse”. Pressing “*” to select and confirm.

(1). The second row of the first and second digit shows the volume of the current. Press ” “, and the first digit will blink, which means the parameter can be adjusted via “UP” and “DOWN”. Press ” ” again to confirm.
(2) The second digit will blink, which means the parameter can be adjusted via “UP” and “DOWN”. Press ” ” again to confirm.
(3) P2 or P1 will blink. Please select P2 or P1 via “UP” and “DOWN” to set the pulse. P2 means welding once in 2 times. P1 means welding once in 1 time.
(4) Press ” ” again to confirm. The spot welder can weld when the digit does not blink.
(5) Please set bigger current power to weld thicker than 0.1 mm.
(6) The table of current and time of pulse for number setting and knob setting.

Welding introduction

1. Welding pressure adjuster Please turn up the pressure adjuster clockwise to weld thicker thickness. Please turn down the adjuster anticlockwise to weld thinner thickness. Please observe the welding spot whether fastness or small size. (Notice: When the pressure adjuster to the maximum or minimum will be not welded. Please turn the knob to the other side and the machine can work again.)
Please for reference to adjust the welding pressure adjuster

Types of →
Thickness
↓| Pure nickel strip|   Nickel plated strip
---|---|---
 0. 05mm| 200-220g| 250-280g
0. 1mm| 250-300g|  320-350g
 0. 15mm|  320-350g|  350-400g
 0. 2 mm| 350-420g| 400-480g

2. Install welding pins

Before| After

1. Use a hexagon wrench to loosen the screw.
2. Welding pins get through from below the hole.
3. Adjust the length. Use a hexagon wrench to tighten up the screws.
4. It can be installed as you wish. But please do not let 2 welding pins get in touch.

3. Welding operation

Press tight and push up | Finished

1. Depending on the thickness of welding material to set current and pulse.
2. The welding pins press tight on the welding surface and push up the welding arm.

4. Pedal switch Please plug the pedal switch into the panel. The original welding controlling function was transferred to the pedal switch to control.
When aiming to the welding spot and push up the welding arm. then step the pedal switch to weld.

Attention to use

Using notice

1. In order to obtain a good weld effect, please don’t use the active socket, and should be used the wall socket to ensure a stable power supply.
2. Please place the spot welder in the ventilated areas to keep the machine for heat dissipation.
3. Please adjust the suitable welding pressure for welding.
4. Please notice when reaching to setting temperature inside of the spot welder, it would be protected and stop working until the temperature cools down.
5. Please let the machine take a break when welding over 0.2mm thickness to avoid overheating.
6. Please keep the clean welding pins’ surface for obtaining a good welding spot.

The maintenance of welding pins

1. The welding pins on the new machine must be clamped by M4 hexagon screws.
2. Please check oxidation on 2 pin clamps and grind it with crocus cloth.
3. Please check oxidation on the welding pin and grind it with sandpaper.
4. It can be smeared with some lubrication oil on welding pin clamps and welding pins for avoiding oxidation.

Repair of Simple Fault

socket is connected
Poor Welding| Check the position of the welding needle and observe the welding needle if it is oxidized. Adjust the welding needle.
GFCI-protected|   If you use the machine for the first time, replace another power supply circuit or change 60A GFCI.
Irregular charging|   Check the output voltage whether compliance with the battery pack;the constant current whether reasonable.
 The charging protected closed| Reduction of the charging current, or use in a well-ventilated environment.**

Notice

1. In order to obtain a good weld effect, please don’t use the active socket, and should be used the wall socket to ensure a stable power supply.
2. Please set the pressure adjuster to the right parameter to avoid the welding effect in not good.
3. Please keep the surface welding pins clean and wipe off oxide with sandpaper.
4. Please keep the welding pin in a sharp shape.
5. Please do not worry about the lighting in flash. SUNKKO 737G is a high-power machine discharging high currents instantaneously. Because this moment is in 20ms and it is normal.

Foshan Meilide Electronic Co. Ltd
Tel: 86-0757-28972123/28852933
E-mail: mldsunkko@hotmail.com
Website: http://sunkko.1688.com
Add: No.4 Guda Road Zhangcha,
Chancheng, Foshan, Guangdong, China.

QUALITY CERTIFICATE
Name: ❑ Spot welder ❑ Tester
Model: Refer to this product model
Date:
Inspectors:
The product has passed the inspection and is allowed to leave the factory!
Quality Control Section (Seal)

Foshan Meilide Electronic CO., Ltd.
Product Warranty Card

Dear customer:
Thank you for choosing the SUNKKO series of products.
We hope that the SUNKKO products and after-sale services could make you satisfied.

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