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Capacitor Discharge Welders

Heron CD projection welders 

Main features

Designed for high-precision projection welding, Heron's Capacitor Discharge (CD) Projection Welders provide reliable welding quality for dissimilar and hard-to-join metals. Heron's CD Welders operate with small heat affected zone and minimal water cooling, providing significant environmental and cost advantages.
Advantages of the process
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Machine types
CD Welding Machines from 3KJ to 150KJ
Heron' s standard selection of CD resistance welding solutions ranges from 3KJ to 150KJ.
Join metals with Heron' s medium voltage CD welding technology for efficient, safe and high-quality welding!
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L series
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H series
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Custom
L Series Capacitor Discharge Welder-3KJ/4.5KJ/6KJ
Choose based on your industry application, from a range between 3KJ to 6KJ power supply.
L series
Features

Our L Series capacitor discharge projection welder is mainly applied to small screw nut projection welding, and has unique advantages in hot-stamping steel and galvanized steel screw nut projection welding.

Benefits
With features like short welding time, small heat affected zone, lower energy consumption, slow electrode loss, you can save significant manufacturing costs.

Model #

DR-3000

DR-4500

DR-6000

Volume of capacitor

 μf

 30000

 45000

 60000

Power Supply

 V/Φ/Hz

380V / 3P/ 50Hz or 480V / 3P/ 60Hz

Max. Primary Current

 A

 23

 26

 40

 Primary Cable

 MM2

3*16+2*6

3*16+2*6

3*16+2*6

Max. Short Circuit Current

 KA

 28

38

58

Rated Duty Cycle

 %

50

 50

50

Secondary  Voltage

 V

 10

 10/11.4

11/12

Welding Cylinder Size

 Φ*L

 Φ125*100

 Φ140*100

 Φ160*100

Max. Force/5Bar

 N

 6100

 7600

10000

Throat Depth

 MM

 450

450

450

Arm Gap

 MM

315

315

315

Dimensions

 H(MM)

1874

1874

1874

 L(MM)

1245

1245

1245

 W(MM)

805

805

805

Package size (H*L*W)

MM

H+150, L+200, W+200

Weight

Kg

849

990

1118

Standard Configurations

Operation

Food Pedestal Start

Control

Heron HRC-211

Components

Heron Round Cylinder

Airtac Pneumatic Components

EACO capacitors

Add-Ons

▢ PLC and Touch Screen

▢ Quality Monitor

▢ Safety Fences

▢ Single or Double-handed Start

▢ Optional Configurations Available on Request

H Series Capacitor Discharge Welder-10KJ/15KJ/20KJ
Choose based on your industry application, from a range between 10KJ to 20KJ power supply.
H series
Features

Our H Series capacitor discharge projection welder is equipped with a roller ram cylinder and sturdy frame, which guarantees a reliable projection welding process. Widely utilized in crucial components of the automotive body structure, such as the car door beam, front and rear bumpers, A-pillars, B-pillars, and car roof cover. 

Benefits
This series of capacitor discharge welders can be coupled with a real-time quality control system, which supports the transmission of welding parameters to an external computer – making it a versatile and efficient solution for your welding needs.

Model #

DR-10000

DR-15000

DR-20000

Volume of capacitor

 μf

20000

30000

40000

Power Supply

 V/Φ/Hz

380V / 3P/ 50Hz or 480V / 3P/ 60Hz

Max. Primary Current

 A

 48

62

83

 Primary Cable

 MM2

3*16+2*6

3*25+1*16+1*6

3*25+1*16+1*6

Max. Short Circuit Current

 KA

 75

100

130

Rated Duty Cycle

 %

50

 50

50

Secondary  Voltage

 V

11/13/16.7

13/15/18

13.6/15.7/17.8/22.2

Welding Cylinder Size

 Φ*L

Φ140*150

Φ160*150

Φ200*150

Max. Force/5Bar

 N

7600

 10000

15000

Throat Depth

 MM

500

500

500

Arm Gap

 MM

400

400

400

Dimensions

 H(MM)

2299

2299

2299

 L(MM)

1510

1510

1510

 W(MM)

1159

1159

1487

Package size (H*L*W)

MM

H+150, L+200, W+200

Weight

Kg

2224

2386

2762

Standard Configurations

Operation

Double-Handed Start

Control

Heron HRC-211

Components

Heron Roller Ram Cylinder

FESTO Pneumatic Components 

IFM Flow Switch

Mitsubishi PLC and 7-inch Kunlun Touchscreen

Add-Ons

▢ Siemens PLC & Touch Screen 

▢ Quality Monitor

▢ Safety Fences

▢ Light Curtain

▢ Other Configurations Available on Request

H Series Capacitor Discharge Welder-25KJ/30KJ/35KJ/40KJ
Choose based on your industry application, from a range between 25KJ to 40KJ power supply.
H series
Features

Our H Series capacitor discharge projection welder offers a top-notch solution with excellent rigidity, compact design and minimal space occupation. This versatile machine is perfect for multi-point projection welding, ring projection welding, and compatible with large size parts. Whether it's  car door frames, car seat slides, water heater inlet and outlet pipes, dishwasher liners and more, this welder is the ideal choice for all your welding needs.  

Benefits
This series of capacitor discharge welders is designed to fully comply with European CE and North American CUL standards. Guaranteed clean and reliable welds and charging time is  just only 1 second. 

Model #

DR-25000

DR-30000

DR-35000

DR-40000

Volume of capacitor

 μf

50000

60000

70000

90000

Power Supply

 V/Φ/Hz

380V / 3P/ 50Hz or 480V / 3P/ 60Hz

Max. Primary Current

 A

 100

120

140

160

 Primary Cable

 MM2

3*50+1*16+1*6

3*50+1*16+1*6

3*50+1*16+1*6

3*50+1*16+1*6

Max. Short Circuit Current

 KA

 155

175

200

220

Rated Duty Cycle

 %

50

 50

50

50

Secondary  Voltage

 V

15/17/20/26.6

15/17/20/26.6

30/24/35/48

17/22/27/30

Welding Cylinder Size

 Φ*L

Φ200*150

Φ200*150

Φ200*150

Φ300*150

Max. Force/5Bar

 N

15000

 24000

24000

35000

Throat Depth

 MM

400

400

400

400

Arm Gap

 MM

400

400

400

400

Dimensions

 H(MM)

2310

2441

2504

2504

 L(MM)

1500

1500

1500

1500

 W(MM)

1497

1497

1497

1497

Package size (H*L*W)

MM

H+150, L+200, W+200

Weight

Kg

3851

4038

4038

4019

Standard Configurations

Operation

Double-Handed Start

Control

Heron HRC-211

Components

Heron Roller Ram Cylinder

FESTO Pneumatic Components 

IFM Flow Switch

Mitsubishi PLC and 7-inch Kunlun Touchscreen

Add-Ons

▢ Siemens PLC & Touch Screen 

▢ Quality Monitor

▢ Safety Fences

▢ Light Curtain

▢ Other Configurations Available on Request

L series and H series capacitor discharge welder
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Current curve determines the welding quality
Capacitor discharge curve

Can satisfy the demand for continuous increase of welding current

Continuous increase of the molten pool after the projection melting due to the decrease of contact resistance

Overcoming the shortcomings of the traditional AC and MFDC constant current output curve

The medium-voltage capacitor discharge projection welding is the best projection welding process in the field of resistance welding

Medium-voltage capacitor discharge welding energy concentration, heat-affected zone is small
The thread will not be deformed due to the heat of the welding process
The output energy is stable and reliable
Energy savings and overall consumption reduction
Applications
Industry applications

Automotive and general industry

Application material
Hot-stamped high-boron steels
Press hardened steels
Coated components
Weld nuts and bolts
Advanced high strength steels (R 0.2 < 1,600 MPa)
Steel types with high carbon content (greater than 0.2 %)
Workpieces with a wide range of different cross-sections and surfaces
Welding result
The heat affected zone of the nut after welding is small, and the thread is not deformed.
The galvanized layer of the thread and plate can be completely left intact.
The galvanized layer is not destroyed and no filament is required.
The molten core has a penetration depth greater than 0.2MM.
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Get in touch with us
If you are interested in a quotation or opportunities to collaborate, please use the following enquiry form.
Our sales representative will contact you within 24 hours. Thank you for your interest in Heron.
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