Laser Cutting Head

Feb 19,2021
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Data Sheet

We supply the laser cutting heads with auto-focusing function and you can easily cut uneven surface me>tals. These cutting heads are compact stable and easy for use.

We supply the laser cutting heads with auto-focusing function and you can easily cut uneven surface metals.

Laser cutting head is one of most important parts of laser cutting machines. The traditional cutting head only includes focusing lens and nozzle and does not have auto-focus function.If there is no auto-focus, the spacing between the focus lens and workpiece will not be same, which results in different focused beam diameters and then different power densities at different positions. Thus the cutting quality may be different at the positions.

Based on the requirements from the market, we have developed self-floating laser cutting heads. By using capacitive sensor and auto motor moving system, the spacing between the focus lens and workpiece will be kept same at any position of the cutting field. The response time is millisecond range only and the system is stable and reliable.

STAC Series Laser Cutting Heads and CNC Control Software

1. STAC-A200MS Series Manual-focusing Cutting Heads

STAC-A200MS series fiber laser cutting heads, designed for laser power within 2000w, is a wonderful solution for medium power of laser flat cutting application.

Precision optical element
Perfect water-cooling system
High grade dustproof design
Precision machined parts
Wide range of focus adjustment (12mm)

Speifications:

Part number: STAC-A200MS
Max. laser power: 2000W
Fiber connector: QBH
Focusing lens: Dia=30mm,F=125mm
Collimating lens: F=100mm
Max. beam aperture: 26mm
Laser wavelength: 1064nm
Nozzle’s exit beam dia.: 1mm~4mm
X & Y adj. range: ±1mm
Z-axis adj.: -6mm~6mm
Head weight: 2.5kg
Dimension: Dia. 99 x 346mm

2. STAC-A260E and STAC-280E Electrical-focusing Cutting Heads

STAC-A260E/A280E electric fiber laser cutting head, supporting electric auto-focus adjustment, is designed for medium/high power of laser cutting. With sensor unit, controlling unit and driving unit integrated inside, it is a wonderful solution for achieving complete automatic cutting when working with our motion control board STAC-MCC series and CNC cutting software STAC-SC series.

A motor is used to move the focal lens up/down to adjust the focusing. It can be driven via our control board STAC-MCC3721.

Part number	STAC-A260E	STAC-A280E
Max Laser Power	2000W	4000W
Focus Lens	D=30mm,F=125/150mm	D=30mm, F=125/150mm
Collimator Lens	D=30mm,F=100mm	D=30mm,F=100mm
Z-axis Adjustment range	-10mm~+8mm	-10mm~+8mm
Focus adjustment mode	RS 485/DA	RS 485/DA
Focus accuracy	±0.1mm	±0.1 mm
Focus adjustment speed	150mm/s	300mm/s
Focus acceleration	10m/s*	10m/s2
Head weight	-3kg	-3kg
Dimension	Dia 120 x 363mm	Dia 120 x 363mm
Pressure sensor	Optional	Optional
Temperature sensor	Optional	Optional
Indicate light	Standard	Standard

3. STAC-MCC3721 Control Boards

The control boards used to control lasers, laser cutting heads, XYZW motion and capacitor height sensor in the cutting heads. STAC-MCC3721H is to control XYZ 3-axis motion and STAC-MCC3721NC is to control XYZW 4-axis motion.

The I/O ports are defined as following table.

Port		Function	Remark
Power input	+24V	DC24V input + end	24V/10A DC. Recommend to use DC 24V/10A power supply
	PG	protective ground
	0V	DC input - end, power GND
Axis’ limit input	X+	X Axis’ positive limit input, special signal, low-level propagation is effective.	X Axis’ limit input
	X0	X Axis’ origin signal, special signal, low-level propagation is effective.
	X-	X Axis’ negative limit input, special signal, low-level propagation is effective.
	0V	GND, X Axis’ limit signal COM port
	Y+	Y Axis’ positive limit input, special signal , low-level propagation is effective.	Y Axis’ limit input
	Y0	Y Axis’ origin signal， special signal， low-level propagation is effective. YY Axis’ negative limit input， special signal， low-level propagation is effective. 0V GND, Y Axis’ limit signal COM port
	Y-	Y Axis’ origin signal， special signal， low-level propagation is effective. YY Axis’ negative limit input， special signal， low-level propagation is effective. 0V GND, Y Axis’ limit signal COM port
	0V	Y Axis’ origin signal， special signal， low-level propagation is effective. YY Axis’ negative limit input， special signal， low-level propagation is effective. 0V GND, Y Axis’ limit signal COM port
	Z+	Z Axis’ positive limit input， special signal， low-level propagation is effective.	Z Axis (standby ) input
	Z0	Z Axis’ origin signal，special signal，low-level propagation is effective.
	Z-	Z Axis’ negative limit input，special signal，low-level propagation is effective.
	0v	GND, Z Axis’ limit signal COM port
	W+	W Axis’ positive limit input，special signal，low-level propagation is effective.	W Axis(Rotation Axis / standby ) input
	W0	W Axis’ origin signal，W
	W-	W Axis’ negative limit input，special signal，low-level propagation is effective.
	0v	GND, W Axis’ limit signal COM port
Axis’ controlling ports	X	X Axis’ controlling signal	DB15female
	Y1	Y1 Axis’ controlling signal
	Y2(Z)	Y2（Z）Axis’ controlling signal	If Y Axis is set up as dual - drive mode, it is Y2Axis; if Y Axis is set up as single drive mode, it is Z Axis’ controlling port( standby ).
	W	W Axis’ controlling signal	Rotation Axis( standby )
General custom outputs	DO1	DO1 general output port	The function of output port can be set up arbitrarily by software. Passive output port has the same output TTL with COM port.
	DO2	DO2 general output port
	COM1	general output COM port
	DO3	DO3 general output port
	DO4	DO4 general output port
	DO5	DO5 general output port
	DO6	DO6 general output port
	COM2	general output COM port
	DO7	DO7 general output port
	DO8	DO8 general output port
	DO9	DO9 general output port
	DO10	DO10 general output port
	COM3	General output COM port
	DO11	DO11 general output port
	DO12	DO12 general output port
Thyristor output	DO13	DO13 thyristor output port	DCV output: 24V, drive current: 1A
	DO14	DO14 thyristor output port
	COM4	Thyristor output COM port
	DO15	DO15 thyristor output port
	DO16	DO16 thyristor output port
Power output	24A	The first DC24V output +end	Can be used as Axis’ limit switch/general output port can supply standard TTL
	24B	The 2nd DC24V output +end
	0V	The GND for DC24V output
PWM output	P+	PWM signal output +end	The TTL of PWM output is 24V/5, which can be configured by the jumper nearby.
PWM output	P-	PWM signal output -end
Analog output	AO1+	Analog output port +end	The voltage of analog output is from 0V to 10V, which can be configured by software.
	AG	The GND for analog output
	AO2+	Analog outpot port +end
	AI	Analog input
General input	DI1	general input port, low-level propagation is effective (Default)
	DI2	general input port, low-level propagation is effective (Default)
	DI3	general input port, low-level propagation is effective (Default)
	DI4	general input port, low-level propagation is effective (Default)
	DI5	general input port, low-level propagation is effective (Default)
	DI6	general input port, low-level propagation is effective (Default)
	DI7	general input port, low-level propagation is effective (Default)
	DI8	general input port, low-level propagation is effective (Default)
	DI9	general input port, low-level propagation is effective (Default)
	DI10	general input port, low-level propagation is effective (Default)
	DI11	general input port, low-level propagation is effective (Default)
	DI12	general input port, low-level propagation is effective (Default)
	DI13	general input port, low-level propagation is effective (Default)
	DI14	general input port, low-level propagation is effective (Default)
	DI15	general input port, low-level propagation is effective (Default)
	0V	Signal input public port
Ethernet	1X	Industrial Ethernet interface	These four ports can be arbitrarily configured
	2X	Industrial Ethernet interface
	3X	Industrial Ethernet interface
	4X	Industrial Ethernet interface
General serial port	RS232	RS232 serial port	It can butt-joint with laser

4. Laser Cutting Software STAC-SC2000

STAC-SC2000 CNC cutting software is designed for flat fiber laser cutting which includes graphic drawing and editing, cutting process dealing, cutting process controlling, system monitoring, components monitoring and debugging, and so on.

Features:

1) Simple Operations, Powerful Functions.

Developed based on RIBBON framework, the design is unique and the software is easy to be operated.
UI design is more humanized, which is easier to use even without training.
With powerful CAM functions based on AUTOCAD design, support graphic import, graphic drawing, graphic editing, and graphic transformation, graphic optimized and so on.
Intelligent capturing, which makes drawing more convenient and accurate.
Unique properties option design, which helps user to design the cutting graphic more easily.
Support various sort methods, auto sort can recognize the film inside or outside the graphic to make sure the path planning optimized.
Powerful lead line function, support various ways to lead line, auto added suitable lead line based on graphic nested relations. Support check/revise interfered lead line by one click.

2) Complete cutting process, debugging easily.

Support all kinds of cutting process: Section drill, gradual drill, multi stages drill, cutting with film, fix height cutting, and predrill and so on.
Support laser’s power/frequency adjusted with speed, to decrease or avoid the problem of firing corners when cutting carbon steel.
Support multilayer cutting or marking, and other sorts of processing ways.
Support micro-joint, gap, over-cutting, bridge, kerf-compensation and so on.
Powerful material database, which can save all sorts of material cutting process.
Support complex functions: Edge seeking, fly-cutting and so on.
Support breakdown position tracking/forward/backward and so on.

3) Rea-time alarm, stable and reliable.

Support running error measurement, it can check the error between running orbit and graphic error.
Real-time alarming the status of capacitive height controller, laser source, auxiliary gas of electric laser cutting head and other equipment, make sure the security during cutting.
More than 50 different kinds of alarms, to secure the equipment in whole aspect, avoid user’s wrong operation.

UI design is very clear, from up to down: title option, tool option, alarm option, view option, running control option, message bar, graphic parameters option, and status bar. The functions of each section shows as below:

Section	Function	Remark
Tittle bar	Display software’s name and version number.
Tool option	Mainly collects the tools needed for software operation, it has five submenu: Start/Draw/System Analysis/Advanced/Nest. User can do graphic drawing, graphic editing, graphic transformation, adding lead line, monitoring running status, configuration machine tool.
Alarm bar	Display the current system alarm.	Alarm will be displayed in pop-up window, and once the alarm is cleared, the pop-up window will be gone.
View section	Graphic drawing/displaying section, displaying section of the machine’s cutting area.
Running control option	Run all kinds of cutting actions by software.
Message bar	Display the current running status in scrolling to attract user’s attention.
Layer properties option	Set up layer properties such as layer process, graphic transformation and so on.
Running status	Display the running status, running location, cutting speed and so on.

Operation flowchart:

A full package consists of a laser cutting head, a control board and cutting software.

The functions of each part is summarized as following:

Part name	Part number/combination	Remarks
Cutting head	STAC-A200MS	<2kW, manual focusing
Cutting head	STAC-A200MS-3D	<2kW, manual focusing, smaller 3D nozzle size for tube cutting
Cutting head	STAC-A260E	<2kW, electrical focusing
Cutting head	STAC-A290E	<2kW, electrical focusing, smaller 3D nozzle size for tube cutting
Cutting head	STAC-A280E	<4kW, electrical focusing
Cutting head	STAC-A295E	<4kW, electrical focusing, smaller 3D nozzle size for tube cutting
Control system	STAC-MCC3721H + STAC-SC2000	3-axis (X, Y1, Y2, Z) flat-plate cutting. Y1 & Y2 have same signals.
Control system	STAC-MCC3721NC + STAC-SC2000	4-axis (X, Y1, Y2, Z, A) flat-plate cutting. A is used to exchange tables.
Control system	STAC-MCC3723+STAC-FTC10+SCTube	Tubing cutting such as round, square, L, H and rotation
Control system	STAC-MCC3723+STAC-FTC10+STAC-EX15*2+SCTube	Tubing & flat plate cutting
Total solution	STAC-A200MS+STAC-3721H+STAC-SC2000	Internal height floating, for thin flat plate cutting
Total solution	STAC-A260E+STAC-MCC3721NC+STAC-SC2000	Internal height floating and auto-focusing, for thick flat plate cutting
Total solution	STAC-A200MS-3D+STAC-MCC3723+STAC-FTC10+STAC-SCTube	Professional tubing cutting such as round, square, L, H and rotation
Height floating	STAC-FTC10 (not including sensor nozzle)	Individual height adjusting, for tubing, flat-plate, 3D cutting
Height floating	STAC-FTC61 (not including sensor nozzle)	Individual height adjusting, supporting pulse step or servo motors

STW Series Laser Cutting Heads

1. Fiber Laser Cutting Heads STW-3D30 & STW-25D30

Direct driver motors are used to guarantee high accuracy at long lifespan. The cutting head is used for three dimensional cutting applications with laser sources of maximum laser power 3kW such as IPG, SPI, Rofin, nLight, Raycus, Max Photonics etc. An anti-collisional detecting device is used.

Model	STW-3D30	STW-25D30
Max gas pressure	25bar	25bar
Horizontal adjustment range	±1.5mm	±1.5mm
Vertical adjustment range	±10mm	±10mm
Effective aperture	25mm	25mm
Collimating focal length	100mm	100mm
Focusing focal length	125/150mm	125/150mm
Range of rotation axis 1	360o
Range of rotation axis 2	±135o	±135o
Standard speed	80r/min	80r/min
Position accuracy	<20 arc sec	<20 arc sec
Dimension	1149x409x310mm	611x245178mm
Weight	30kg	15kg

2. Automatic Focusing Fiber Laser Cutting Head STW-NC60/30/30B/12

Applicable power range from 1kW to 6kW.
Automatic focus position adjustment.
Focus position displayed in front.
Completely sealed optical structure.
Easy two-point alignment adjustment.
Convenient to change protective window.
High efficiency of piercing.
Easy to change/replace protective lens via drawer structure.
To be equipped with various kind of QBH connectors.

Model	STW-NC60	STW-NC30	STW-NC30B	STW-NC12
Max gas pressure	25bar	25bar	25bar	25bar
Horizontal adjustment range	±1.5mm	±1.5mm	±1.5mm	±1.5mm
Vertical adjustment range	±10mm	±8mm	±10mm	±8mm
Effective aperture	32mm	25mm	25mm	20mm
Collimating focal length	100mm	100mm	100mm	75/100mm
Focusing focal length	150/190mm	125/150/190mm	125/150/190mm	125/150mm
Max. applicable power	6kW	3kW	3kW	1.5kW
Dimension (mm)	368.5x148.2x99	368.5x148.2x99	377.5x121.2x100	360x109x93
Weight	7.3kg	5.1kg	4.4kg	2.8kg

3. Zoom Smart Cutting Head

The cutting heads are completely sealed
Two point centering adjustment is easy and fast for focusing
Automatically focusing laser focus spot
Easily change or replace the protective lens via drawer structure
To be equipped with various kinds of QBH connectors

Model	STW-NC80
Max gas pressure	25bar
Horizontal adjustment range	±1.5mm
Vertical adjustment range	±10mm
Effective aperture	32mm
Collimating focal length	100mm
Focusing focal length	150/190mm
Max. applicable power	9kW
Adjustable spot ratio	1:3.2
Dimension	452x128x124mm
Weight	6.2kg

4. STW-MN15 & STW-KC15 Low Power Fiber Laser Cutting Head (1-2kW)

The laser cutting head is completely sealed to avoid dust contamination on the optical parts.
This laser head adopts two-point alignment, and the focusing is adjusted by cam structure accurately and conveniently.
The protective window is installed in cartridge, and is convenient to replace.
Can be equipped with various kinds of laser source with QBH connector.

Model	STW-MN15	STW-KC15
Max gas pressure	25bar	25bar
Horizontal adjustment range	±1.5mm	±1.5mm
Vertical adjustment range	±4mm	±5mm
Effective aperture	20mm	25mm
Collimating focal length	75/100mm	75/100mm
Focusing focal length	125mm/150mm	125mm/150mm/200mm
Max. applicable power	1000W	2000W
Dimension	325x70x70mm	364x99x93mm
Weight	1.7kg	3.3kg

High-power Nd:YAG Self-floating Laser Cutting Heads

There are following main features of our cutting heads:

Suitable to1064nm wavelength YAG laser cutting system.
Suitable to laser power less than 1000W.
Spacing between the exit of the nozzle and workpiece is 1-20mm adjustable, response time is less than 5ms, and the control precision is 0.2mm.
Independent, complete Z-axis control and adjustable focus position. Also there are some functions such as automatic/manual mode, up/down jog control, auto tracking/auto reset function, multiple gap setting, zero shift compression etc
Numerical control portcan easily be connected to most controllers. The cutting system automatically tracks the marking head open, close or back to zero.
Multiple focusing lenses with various focal lengths.
Cooled nozzle design used for high pressure cutting.
Over travel protection, collision protection and power-off protection etc.

High powerNd:YAGself-floating laser cutting head consists ofnozzle, focal lenses andauto-focusing system.

Nozzle: nozzle is very important for laser cutter. Through in-depth research and tests, we have obtained a large of optimal data according to the different customers’ requirements to recommend the best suitable nozzle.
Focal lens: in general, the focal lens system consists of a few lenses or non-spherical lenses. The focal length is longer, the focused beam diameter is larger, the power density is lower, but the depth of focus is longer, which is beneficial to cutting thick material.
Auto-focusing system: there is a capacitive sensor used to measure the distance between the nozzle and workpiece. The measured distance will be online fed backed and then the system will drive the step motor or servo motor to adjust the distance and always keep the distance same.

Technical specifications:

Part number	STC2
Max. allowed laser power	1000W
Focal length of focal lens	80mm/120mm
Max. input beam diameter	40mm
Adjustable focus range	-4mm～4mm
Length of cutting head	146mm @ FL=80mm
Max. diameter of cutting head	88mm
Required DC power input	24VDC
Weight	0.5kg @ FL=80mm

STOS Series Fiber Laser Cutting Head

1. STOS-CU102

Installation with collimating mirror.
Water cooling module.
Drawer installation method.

Interface type	QBH
Laser power	≤1500W/3000W
Collimating focal length	F100mm/150mm
Horizontal Adjustment	±1.5mm
Collimating control range	±5mm
The maximum optical aperture	26mm
Weight	1.0KG

2. STOS- LC205

Integrated shaft
Small and long cutting head, suitable for working in limited space
The cutting machine is suitable for integration in multi axis.
Built-in water cooling
Drawer installation method, convenient for maintenance and replacement
The plane screw adjust focus by transmission, accuracy is 0.1mm, with a good self-locking performance.

Laser power	≤3000W
Focal length	150mm
Vertical Adjustment	±5mm
Horizontal Adjustment	±1.5mm
Nozzle	all types
Shaft travel	20mm
Follow rated speed	50mm/s
Weight	7.0KG

3. STOS- LC204

Suitable for small and medium size cutting machine
Built-in water cooling
Drawer installation method, convenient for maintenance and replacement
Installed collimating protective lens
The plane screw adjust focus by transmission ,accuracy is 0.1mm,with a good self-locking performance

Interface type	QBH
Laser power	≤1500W
Focal length	125mm/150mm
Collimating Focal length	80mm/100mm
Nozzle	all types
Vertical Adjustment	±8.5mm
Collimator Adjustment	±5mm
Horizontal Adjustment	±1.5mm
Auxiliary pressure	≤3.0MPa
Weight	3.0KG

4. STOS- LC101

Small volume, light weight
Suitable for small and medium size cutting machine
Drawer installation method, convenient for maintenance and replacement
The plane screw adjust focus by transmission ,accuracy is 0.1mm,with a good self-locking performance

Interface type	QBH
Laser power	(LC305L≤1500W), (LC305M≤3000W)
Focal length	125mm/150mm/200mm
Collimating Focal length	100mm
Nozzle	all types
Vertical Adjustment	+10mm~-12mm
Collimator Adjustment	±5mm
Horizontal Adjustment	±1.5mm
Focus adjustment speed	40mm/s
Auxiliary pressure	≤3.0MPa
Weight	6.0KG

5. STOS- LC305L/M

Automatic focusing mode, fast speed, high accuracy. Installed collimating protective lens
Suitable for integration in large plane cutting machine.
Drawer installation method, convenient for maintenance and replacement
Built-in water cooling

Interface type	QBH
Laser power	(LC305L≤1500W), (LC305M≤3000W)
Focal length	125mm/150mm/200mm
Collimating Focal length	100mm
Nozzle	all types
Vertical Adjustment	+10mm~-12mm
Collimator Adjustment	±5mm
Horizontal Adjustment	±1.5mm
Focus adjustment speed	40mm/s
Auxiliary pressure	≤3.0MPa
Weight	6.0KG

6. STOS- LC304

Installed collimating protective lens
Suitable for integration in large plane cutting machine.
Built-in water cooling
Drawer installation method, convenient for maintenance and replacement
The plane screw adjust focus by transmission ,accuracy is 0.1mm,with a good self-locking performance

Interface type	QBH
Laser power	≤3000W
Focal length	125mm/150mm/200mm
Collimating Focal length	100mm
Nozzle	all types
Vertical Adjustment	±8.5mm
Horizontal Adjustment	±1.5mm
Auxiliary pressure	≤3.0MPa
Weight	5.0KG

7. STOS- LC308

Automatic focusing mode, fast, high accuracy.
Installation with collimating protective mirror.
Suitable for medium and large plane cutting machine.
Drawer installation method, convenient for change and maintain.

Laser power	≤6000W
Collimating Focal length	100mm
Nozzle type	all types
Vertical Adjustment	+10mm~-12mm
Focus adjustment speed	40mm/s
Auxiliary pressure	≤3.0MPa

8.3D Laser Cutting Heads, STOS- LC201,<2000W

Small volume, light weight suitable robot 3D laser cutting
Small and long cutting head, suitable for working in limited space
suitable for integration in three-dimensional cutting machine（Industrial manipulator）
Built-in water cooling
Drawer installation method, convenient for maintenance and replacement
Manual adjusting focus by moving lens
Optional servo module and collision protection device.

Model	STOS-LC201
Interface type	QBH
Laser power	≤2000W
Focal length	50mm
Collimating focal length	75mm
Nozzle	all types
Adjustable focusing range	±5mm
Adjustable centering range	±1.5mm
Auxiliary pressure	≤2.5MPa
Weight	1.3kg