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China hot sales pip welding machine PLC Control automatic pipe welder

About us

Kehui technology was organized in 1996, as the leading company in the welding and heat treatment field. It concentrates on providing solution and recommendation to clients, hence, we attempt to customize our product relates to clients’ requirements. By the rich experience in such area, we may design and produce various type of product, such as tube-tube and tube-tube sheet, and other type automatic welding machine which successfully be used in petrochemical, manufacturing and boiler industry.

Product application

Applicable industries: Petrochemical, boiler, refrigeration, medicine, aerospace, pressure vessel, ship building, food machinery, atomic energy ,etc.

Applicable scope:Apply to the pipe’s external diameter from 16mm-230mm such as tube – pipe,tube-elbow, the tube flanges,the materials of which is carbon steel or alloy steel or stainless; butt welding may adopt wire filling or no wire filing.

Parameter of weld head
Type of welding head		KHGK 16-40			KHGK 36-90			KHGK 70-160			KHGK 140-230
Welding Speed(r/pm)		0.4~3			0.2~2			0.1~1			0.07~0.5
Weldable Dia.(mm)		16~40			36~90			70~160			140~230
Electrode Dia.(mm)		1.6/2.4			2.4			2.4			2.4
Swing
mechanical	Amplitude(mm)		±8		±8			±8			±8
pendulum	Speed		0.5~10		0.5~10			0.5~10			0.5~10
	(mm/s)
	Dwell time(s)		0.1~2		0.1~2			0.1~2			0.1~2
Magnetic	Amplitude(mm)		8		8			8			8
pendulum	Frequency(Hz)		0-5		0-5			0-5			0-5
Automatic arc length control
Speed(mm/s)	---	2.5					2.5			2.5
Filler Wire
Wire Diam.(mm)	0.8/1.0			0.8/1.0		0.8/1.0			0.8/1.0
Speed(mm/min)	0~1500			0~1500		0~1500			0~1500
Power Source
Setting Range(A)	8~400			8~400		8~400			8~400

Parameter of power supply
Rated input voltage	380 V
Rated input capacity	11.5 KV A
Rated power input	9.0 KW
Voltage allow fluctuating range	380 V±10%
Phase number	Three-phase
Frequency	50/60 HZ
Welding current adjust range	4~400 A
Rated duty cycle	400 A 60%
	250 A 100%
Rated voltage no-load	70 V
Rated welding voltage	TIG welding, 22.6 V
Pulse frequency	0.5~500 HZ
Built-in memory space	100 groups of weld parameter
Each set can segments	1~12 section
Duty cycle regulating range	20%-50%
Argon flow	8~12 L/min
Preheating time	0.1~25 S
Current rise/fall time	0.1~25 S
Cooling water pressure	1.2 kg/f

Parameter of Control system
Control method	PLC
Display	Digital display
Screen touch	Resistive screen
Built-in memory capacity	100 groups of welding standard
Input Interface	English

Function:The power supply/control system supplies and controls the welding parametersaccording to the specific weld program created or recalled from memory..The specific weld program ( can store 100 groups)are setup by our engineer according to your welding situation.

You also can setup your weld specific program through resisitive touch screen. Our machine can tore 100 groups of weld parameter.The sreen pictures are display as belows:

Function and characteristics

1.Welding head have four specifications, according to different environment, the clients can choose one or several specifications

2. Suitable for various kinds of pipe - pipe joint way and various groove form

3.According to different working environment, welding process can use built-in wire or external wire

4.Main parts of welding head are made of aviation materials, which has many advantages such as light weight, stable structure size and keeping formation under high temperature

5. Under aegis of the forced water cooling, welding head can work long time

6. Driving and wire feeding are done by stepper motor,so welding head is reliable

7.In order to reduce labor intensity and make the operation more convenient, the balancer is used.

8. Clients can choose the arc length automatic adjustment device and yawing device. According to different requirements, yawing device can be used mechanical and swing magnetic pendulum

9. PLC control system and LCD touch human-machine interface(resistive touch screen) can store up to 100 groups of welding standard; each group of welding scope can divide 1-12 section, inputting simply; the workers do not need professional foundation.

10. Adopting Panasonic IGBT inverter control dc pulse power make welding high effectively and arc more stable and welding bead more beautiful.

11. Mandatory water cooling system, equipped with 16 liters stainless steel tank, not affected by field water hydraulic conditions of limits, cooling fully, reliable convenient

12. The cars type integration design, mobile freedom, equipped with small tools and argon gas bottle seat, more welding head can store in the tools.

Welding effect

Package