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MINGDA MD 300 18650 Spot Welding Machine Good Connection 18KVA 110 220V font b Battery b
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MINGDA MD 300 18650 Spot Welding Machine Good Connection 18KVA 110 220V Battery Spot Welder Machine

MINGDA MD-300 18650 Spot Welding Machine Good Connection 18KVA 110/220V Battery Spot Welder Machine 0.03-0.3mm Nicel Stripe

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Price:  $ 4526.31 / piece
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Guarantees: On-time Delivery 60 days

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Welcome to MINGDA Professional Store

We can provide:

  • 100% brand new
  • Original Patent High Quality Battery Welding Machine
  • Manufacture Direct Sale No need to pay extra agent price gap

Attention Detail From Us:

  • One year warranty for machine, this is our promise to machine quality.
  • ONE-TO-ONE Oversea technical support available

The Youtube working video link:

Frankly Speaking, all we want is spend the same cost and get high quality and perfect service experience, thats why we insist in supply top quality product to our clients and also pay more attention to our clients using experience. If you have any interest Please just to try and give us a chance to contact! The service experience decide by your side and to decision your order. Thank you!


The relation between Welding current and spot welder machine

Welding current set by the user, welding time by calculus . Generally, welding current keep

at 50, the welding time in about1-3ms . The relationship between the current and the time is
as follows:

Welding time(%) 10 20 30 40 50 60 70 80 90 100
Weldingtime(ms)1.4 2.0 2.5 2.9 3.3 3.6 4.0 4.3 4.6 5.0

The MD-300 Spot Welding Machine Internal Structure Show

Welding pulse and welding current setting

A. Welding current setting : In normal welding mode, directly press the “↑” or “↓” key to set welding current. The program automatically save the setting after turning off

B. Light description: power light is on when welding, power light flash not welding.

Operation, MD-300 spot welder machine

A. Height adjustment of Welding needles : loosing the height adjustment screw with a wrench. Then adjust or replace the length of needles exposed below the electrode(usually, it is about 15mm. It is easy to deform if it is too long) finally, tightening the screws

B. width adjustment of Electrode (needles) : loosing the width adjusting screw with a wrench, then adjust two electrodes so that two needles to appropriate distance. Last, tightening the screws.
C.Test: test whether there is coke on the needles or not., if so. you need to clear it with a file or abrasive paper. then using the right foot press pedals . When its head drop, stare the welding needles until the needle is on the welding point

D. Power: put plug into a 220V power socket, and turn on the power switch, indicator flashing, the welder is work. If working indicator does not shine or shine without flashing. turning off the power then turn on again.
E. In order to ensure good quality of welding, you should often adjust needles and keep it in a good condition.

Applicable instructions

A. Power Switch: turn the switch up ,the power on. Turn the switch down, the power cut off.

B. Work instructions: Turn on the power switch. If the light flashing, it is work.

C. Welding current: setting current, its range is 00-99. a general welding current is set at about 25.

D. Fuse holder: 15A fuse in the lower left corner of the electrical box.

E. Welding switch: it is in the head of machine, when the solder needle down to the weldment and the switch closed, the welder is going to work, this switch is easy to be broken.


Previous services for pallet wrapping machine :

1. Providing professional technical support.

2. Send the product catalog and instruction manual.
3. If you have any question PLS contact us online or send us email, we promise we will give you a reply at the first time!
4. Personal call or visit are warmly welcome.

Sale of services for small spot welder machine :

1. We promise honest and fair, it’s our pleasure to serve you as your purchasing consultant.

2. We guarantee punctuality, quality and quantities strictly implement the terms of contract…

3. 24hr Online Customer service, please e-mail / QQ/ Skype us ( Please contact us anytime!)

4. Attend and hold Exhibitions, we attach great importance to promote the product.

5. In many cases, we won’t let shipping cost becomes a burden to you.

After-sales service for dual pulse spot welder machine :

1. Where to buy our products for one year warranty and life long maintenance.

2. 24-hour telephone service.

3. A large stock of components and parts, easily-worn parts


1. We have independent intellectual property rights for the whole series of products and its engineering development process.

2. The 3D printer have CE,FCC,ROHS and Alibaba thir-party TUV certification,and up to international export quality.

1. Do you inspect the finished products?

Yes, Each step of production products will be came out inspection by QC department before shipping.

2. Are you factory?
Yes, We are factory, all machine is made by ourselves and we can provide customize service according to your requirement.

3. How to buy your Spot Welder?
Please send me inquiry to our email, and we will give you a PI to send me payment.

4. How to contact you?
You can press the “Contact Supplier” in this the top of the page.

5. How will you deliver my goods to me?

We always ship by air and sea. In the mean time, we cooperate with international expresses such as DHL,UPS, FedEx, TNT to enable our customers get their goods rapidly.

6. How about your transport packing? Is it possible to damage during the transportation?
We have rich experience on international transportation. All the packing are extra thickness carton filling with protective PE foam and waterproof membrane. No damage happened during transportation until now.

7. Can you put my brand name (logo) on this Spot Welder?
YES, Of course. In order to explore the market better and provide more convenient services to global customers, in the year of 2014, we sincerely invite overseas agent to create bright future together.

8. How much do I need to pay for your OEM service?
No need to pay extra cost for our OEM service. The OEM cost is already included in our prices.

9.What payment method do you accept?
T/T, Western Union, PayPal, L/C, D/A, etc.


International certification, the machine quality up to international standard level.

Average Star Rating:
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Shipping Company Shipping Cost Estimated Delivery Time
DHL 3 - 7 days
UPS Expedited 3 - 7 days
EMS 5 - 14 days
Post Air Mail Free Shipping 15 - 45 days
Return Policy If the product you receive is not as described or low quality, the seller promises that you may return it before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe) and receive a full refund. The return shipping fee will be paid by you. Or, you can choose to keep the product and agree the refund amount directly with the seller.

N.B.: If the seller provides the "Longer Protection" service on this product, you may ask for refund up to 15 days after order completion.
Seller Service On-time DeliveryIf you do not receive your purchase within 60 days, you can ask for a full refund before order completion (when you click "Confirm Order Received" or exceed confirmation timeframe).

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Price:  $ 4526.31 / piece
from AliExpress