DN Series Pneumatic AC Projection Welding Machine Spot Welder

• Control: Semi-Automatic
• Cooling Way: Water Cooling
• Style: Fixed
• Electrode Stroke: Vertical
• Electric Current: AC
• Transmission: Pneumatic
• Model NO.: DN-35K--200K
• Conductive Way: Both-Sided
• Welding Spot Number: Single
• Type: Special
• Customize: Can Made as Customers′requests
• Transport Package: Plywood Case
• Specification: Customized
• Trademark: GZhuolong
• Origin: China
• HS Code: 8515219900
• Production Capacity: 5000PCS/Year

Product Description

DN Series Pneumatic AC Projection Spot Welding Machine Spot Welder

Description
This projection welding machine are vertical motion type pressurizing mechanisms. Due to the compressibility of the air, the follow-up of the pneumatic welder is superior to that of the hydraulic welder, and the pneumatic system can be used for the vertical motion welder of all powers, so the projection welding machine mostly uses a pneumatic system.
Projection welding is actually a multi-point spot welding in which the distribution of solder joints is determined by the convex portion. The projection welding is a variant of spot welding, and the welding process is the same as the principle and spot welding. Therefore, the projection welding machine used is basically the same as the spot welding machine.
The projection welding machine is general-purpose and special-purpose; if the spot welding attachment is added to the upper and lower electrodes of the universal welding machine, it becomes a projection welding and spot welding machine.




Difference
1. The upper and lower electrodes are not round rods but flat plates, and the working surface is flat. Usually, standard T-shaped grooves are provided for mounting bolts;
2, The welding machine power and electrode pressure is large, determined by the number of bumps or the area of the convex ring;
3. Generally, the electrode pressurization is only suitable for the direct press type, that is, the upper electrode is moved vertically to its working surface.


Advantage
1. Multiple solder joints can be soldered simultaneously in one welding cycle.
2. Since the current is dense in the bump and the current density is large, the welding can be performed with a small current, and a small nugget can be reliably formed.
3. The position of the projection welding is accurate and the dimensions are the same, so that the strength of the welding head is relatively uniform.
4, Can achieve the welding of different structural workpieces. Due to the current concentration, the disadvantage of the nugget offset during spot welding is overcome, and the thickness of the two workpieces during the projection welding can exceed 6 to 1.
5. Since the large-surface electrode is used and the bump is placed on one workpiece, the indentation of the exposed surface of the other workpiece can be minimized.
6. Compared with the spot welder, the oil, rust, oxide layer, layer and other coatings on the surface of the workpiece have less influence on the projection welding, but the clean surface can still obtain a more stable quality.

Main Technical Parameters

Model Item	Rated capacity	Rated Primary voltage	Rated frequency	Max. Secondary  Current	Rated duty cycle	Arm length	Max. Force	Electrode stroke	Cooling Water flow	Weight	Electrode size
											Electrode  Head	Electrode holding rod	Electrode arm
	KVA	V	Hz	A	%	mm	N	mm	L/min	Kg	(mm)	(mm)	(mm)
DN-25	25	380	50/60	17500	50	380	2500	60	6	300	16	20	45*200
DN-35	35	380	50/60	18500	50	380	4000	60	6	380	16	25	50*200
DN-50	50	380	50/60	20000	50	380	4000	60	6	430	16	25	50*200
DN-75	75	380	50/60	25000	50	380	6280	60	8	500	16	25	60*200
DN-100	100	380	50/60	30500	50	380	6280	60	8	600	16	25	60*200
DN-150	150	380	50/60	38500	50	380	9800	60	12	750	20	30	80*250
DN-200	200	380	50/60	43000	50	380	9800	60	12	800	20	30	80*250

Application
Widely used in automobile manufacturing, tractor manufacturing, motorcycle manufacturing and other industrial sectors.

Our Company
GUANGZHOU DRAGON WELDING CO.,LIMITED is a professional automatic welding equipment manufacturer,which specializes in designing,producing,sale and service together.
Our Products include Spot Welders,Butt Welders,Flash Butt Welders,Seam Welders,Medium Frequency Inverter DC Welders,Single-phase/Three-phase Secondary Rectifier Spot Welder,Wire Mesh Welding Machines,Sink Producing Line,Automatic Argon Arc Seam Welding Machines,High/Ultrasonic/Medium Frequency Induction Heating Machines,and other automatic equipment.

Packing and Delivery
Our spot welding machine will be strictly inspected before packing and shipping out to insure that they could be satisfied with you, and our packing box is very strong.

Successful Case
1 Guangzhou Dragon Welding Co. Ltd was one welding machines manufacturer in China.
2. Strong professional technical team and design team ensure to produce welding machines with top quality.
3. Rich experience on manufacture field with more than 20 years export experience.
4. We provide OEM, ODM service, you could let us know all requirements, our design team and technical team will produce them according to your requirements.
5. We provide samples welding service and good after-sales service.

Licenses and Qualify

FAQ
Q1: What does your factory produce ?
  A: We produce and export all kinds of automatic welding machines and wire forming machines. We also 
can design and develop the welding machines according to your requirements. 
 
Q2: What about your standard delivery date ? 
  A: Usually 10-20 days. Our company provide just-in-time delivery
 
Q3:Do you sale welding electrodes ?
 A:YES,you can buy welding electrodes from our factory or in your local market.
 
Q4: Do you have CE Certificate?
  A: YES,we have.
 
Q5: Can you export machines by your factory?
  A; YES,we can. 
 
Q6: Where are your factory?
  A: Our factory located in Guangzhou City, Guangdong Province, China.
  
  We will provide same good after-sale service as the pre-sale service, any of your questions,
we will be replied within 12 hours.