Laser Cutting Head Laser cutting head is one of the most important components in laser cutting machines. Traditional cutting head consists of only focus lens and cutting nozzle which does not have auto focus function. In wide range laser cutting machines, different processing parts have slightly different height that causes the material deviated from actual focal length. As a result variation of focused beam spot, power density and cutting position will cause laser cutting quality inconsistent and difficult to meet the requirement. Therefore a quality laser cutting head is very important as the height can be adjusted whenever processing any material at different height using any cutting method. The distance between cutting nozzle and workpiece is one of the factors affected cutting speed and quality. Beside selecting suitable nozzle and air pressure parameter according to cutting situation, the distance between nozzle and workipiece should also increase or decrease base on workpiece thickness. To ensure high quality cutting the nozzle during cutting process must always be maintained stability at the same height, especially on thin, textured surface, inconsistent flatness workpiece or even limited cutting environment. It is impossible to adjust the height manually during cutting process as human reaction is slow while cutting speed is very fast. To solve manually adjustment instability, a height adjustment follower is necessary. With the follower installed no matter how thick the workpiece is, the height will always be the same. According to market requirement we developed self-floating auto focus laser cutting head. It uses the capacitive sensing and automated servo system to ensure the cutting process always in focus to have a consistent, clean and no glitch cutting result. With stepper motor, ball screw driver, advanced multifocusing system and high quality optical device, this enable the cutting head to keep the distance with workpiece in stable and reliable condition in long term. It is an essential component for laser cutting machine in order to obtain the optimum cutting quality. http://www.sintecoptronics.com sales@sintecoptronics.com 1
1. Mini Fiber Laser Cutting Head Features: This series is a lightweight and high efficient laser cutting head. It has advantages over small area and small, middle laser power cutting application especially on robot arm. Internal structure of cutting head is completely sealed to prevent the optical parts from dust contamination; Using Cam lever structure to adjust 2 focus point at centre accurately; Using drawer style protecting lens installation method, easy for maintenance. ST- MN-001E ST- MN-001F ST- MN-001B ST- MN-001C ST- MN-001D Specification: Model ST- MN-001E ST- MN-001F ST- MN-001B ST- MN-001C ST- MN-001D Collimation focal Length 75,100mm 75,100mm Focal Length 125,150mm 125,150mm 125,150mm 100,125,150mm 125,150mm Vertical Adj. Range Horizontal Adj. Range Effective Aperture Max Air Pressure ±4mm ±4mm ±4mm ±4mm ±4mm ±1.5mm ±1.5mm ±1.5mm ±1.5mm ±1.5mm 20mm 20mm 20mm 20mm 20mm 25Bar 25Bar 25Bar 25Bar 25Bar Weight 2.1kg 2.0kg 2.1kg 2.1kg 2.0kg Connector QBH QCS QCSφ14 QBH QCS Laser Power < 1000W < 1000W 500W (Raycus) < 1000W < 1000W http://www.sintecoptronics.com sales@sintecoptronics.com 2
2. Fiber Laser Cutting Head Features: This series of cutting head is suitable for large area and middle laser power range of cutting application; Internal structure of welding head is completely sealed to prevent the optical parts from dust contamination; Using Cam lever structure to adjust 2 focus point at centre accurately; Using drawer style protecting lens installation method, easy for maintenance. ST-GQ- 001A ST-RK- 001B ST-GQ-RK- 001C ST-GQ- WT-001F Specification: Model ST-GQ- 001A ST-RK- 001B ST-GQ-RK- 001C ST-GQ- WT-001F Collimation focal Length 75,100mm 75,100mm Focal Length 125,150,200mm 125,150,200mm 125,150,200mm 125,150,200mm Vertical Adj. Range Horizontal Adj. Range Effective Aperture Max Air Pressure ±5mm ±5mm ±5mm ±5mm ±1.5mm ±1.5mm ±1.5mm ±1.5mm 25mm 25mm 25mm 25mm 25Bar 25Bar 25Bar 25Bar Weight 3.5KG 3.5KG 3.0KG 3.7KG Connector QBH QCSφ14 c/w 2x Beam Expander Laser Power >2KW Laser 500W Raycus Laser >1000W Laer >2000W Laser QCS QBH http://www.sintecoptronics.com sales@sintecoptronics.com 3
3. CO2 Laser Cutting Head Features: This cutting head is suitable for low CO2 laser power range cutting application; it can be used to cut metal or non-metal material. It is also economic and easy to operate; It use double drawer structure on focusing lens so the user can easily configure it into long or short focal length; Centre focusing position can be adjusted by using simple tools. Specification: Model Max Power Focal Length Effective Aperture Sliding range Horizontal Adj Range Weight ST-HQ-001A 500W 63.5mm,101.6mm 24mm 40mm +-1mm 4.5kg 4. Fiber Laser Welding Head Features: laser welding head had advantages for thin and tiny material welding application; Internal structure of welding head is completely sealed to prevent the optical parts from dust contamination; Air knife included to prevent optical parts damage by splatter; using drawer style protecting lens installation method, easy for maintenance; CCD can be equipped according to customer requirement. Specification: Model Max Power Collimation Focal Length Focal Length Effective Aperture Weight ST-GQ-HJ-001A 2000W 75mm,100mm 125mm,150mm,200mm, 24mm 2.7KG http://www.sintecoptronics.com sales@sintecoptronics.com 4
5. Capacitive Sensor We provide custom made service and product to customer. Base on our designing and manufacturing experience after so many years. The capacitive sensor not only meets the basis requirements provided by the customers. It is also fulfilled all relevant parameter while giving the optimized performance to the customers. This greatly reduces the customer cost. 6. Optical lens Collimating lens and focusing lens module Collimating lens module combining precise washer, spring washer and imported lenses is used to convert transmission light from fiber to collimated beam. It is small in size and low loss. Focusing lens module is a convex lens by combining meniscus lens and biconvex lens to get smaller beam spot, correct the spherical aberration and had sharp cutting effect. 7. Ceramic Ring ST-GQ-JT-01, ST-GQ-JT-02 Has great brittle and temperature adaptability as using imported ceramic ring material STC-01 STC-02 8. Cutting Nozzle Laser cutting Nozzle made of imported copper, has high temperature and high pressure resistance characteristics. Use external threaded connection, easy to install and use. SASC-D http://www.sintecoptronics.com sales@sintecoptronics.com 5
Model (Single) ØD D 1 D 2 H H 1 SASC-D-08 0.8 SASC-D-10 1.0 SASC-D-15 1.5 SASC-D-20 2.0 SASC-D-25 2.5 M12*0.75 25 16 4.5 SASC-D-30 3.0 SASC-D-35 3.5 SASC-D-40 4.0 SAMD-S SAMD-D Model (Complex) ØD D 1 D 2 H H 1 I SAMD-S-08 0.8 SAMD-S-10 1.0 SAMD-S-15 1.5 SAMD-S-20 2.0 M12*1 25 20 6.5 24 SAMD-S-25 2.5 SAMD-S-30 3.0 Model (Single) ØD D 1 D 2 H H 1 I SAMD-D-08 0.8 SAMD-D-10 1.0 SAMD-D-15 1.5 SAMD-D-20 2.0 SAMD-D-25 2.5 SAMD-D-30 3.0 M12*1 25 20 6.5 24 http://www.sintecoptronics.com sales@sintecoptronics.com 6
SDZ-S Model (Double) ØD D 1 D 2 H H 2 SDZ-S-08 0.8 SDZ-S-10 1.0 SDZ-S-15 1.5 SDZ-S-20 2.0 SDZ-S-25 2.5 M11*0.75 27.8 15 3.5 SDZ-S-30 3.0 SDZ-S-35 3.5 SDZ-S-40 4.0 SDZ-D Model (Single) ØD D 1 D 2 H H 2 SDZ-D-08 0.8 SDZ-D-10 1.0 SDZ-D-15 1.5 SDZ-D-20 2.0 SDZ-D-25 2.5 M11*0.75 27.8 11 3.5 SDZ-D-30 3.0 SDZ-D-35 3.5 SDZ-D-40 4.0 http://www.sintecoptronics.com sales@sintecoptronics.com 7
SMZKH-D SAMC-D Model (Single) ØD D 1 D 2 H H 1 SMZKH-D-08 0.8 SMZKH-D-10 1.0 SMZKH-D-15 1.5 SMZKH-D-20 2.0 M14*0.75 25 11 4 SMZKH-D-25 2.5 SMZKH-D-30 3.0 Model (Single) ØD D 1 D 2 H H 1 I SAMC-D-08 0.8 SAMC-D-10 1.0 SAMC-D-15 1.5 SAMC-D-20 2.0 M10*1 15.8 13 6 14 SAMC-D-25 2.5 SAMC-D-30 3.0 http://www.sintecoptronics.com sales@sintecoptronics.com 8
SAMB-D SFLL-S Model (Double) ØD D 1 D 2 H H 1 SFLL-S-08 0.8 SFLL-S-10 1.0 SFLL-S-15 1.5 SFLL-S-20 2.0 SFLL-S-25 2.5 M11*0.75 28 11 3.5 SFLL-S-30 3.0 SFLL-S-35 3.5 SFLL-S-40 4.0 Model (Single) ØD D 1 D 2 H H 1 I SAMB-D-08 0.8 SAMB-D-10 1.0 SAMB-D-15 1.5 SAMB-D-20 2.0 M12*1 16 18.5 7 12 SAMB-D-25 2.5 SAMB-D-30 3.0 http://www.sintecoptronics.com sales@sintecoptronics.com 9
SMZKD-S SMZKD-D Model (Double) ØD D 1 D 2 D 3 H H 1 H 2 SMZKD-S-08 0.8 SMZKD-S-10 1.0 SMZKD-S-15 1.5 SMZKD-S-20 2.0 M10*1 11 14 17.5 6 4.7 SMZKD-S-25 2.5 SMZKD-S-30 3.0 Model (Single) ØD D 1 D 2 D 3 H H 1 H 2 SMZKD-D-08 0.8 SMZKD-D-10 1.0 SMZKD-D-15 1.5 SMZKD-D-20 2.0 M10*1 11 14 17.5 6 4.7 SMZKD-D-25 2.5 SMZKD-D-30 3.0 http://www.sintecoptronics.com sales@sintecoptronics.com 10
SGN-D STC-D Model (Single) ØD D 1 H H 1 STC-D-10 1.0 STC-D-15 1.5 STC-D-20 2.0 25 61 5.5 STC-D-25 2.5 STC-D-30 3.0 Model (Single) ØD D 1 D 2 H H 1 SGN-D-08 0.8 SGN-D-10 1.0 SGN-D-15 1.5 SGN-D-20 2.0 SGN-D-25 2.5 M11*0.75 28 15 3.5 SGN-D-30 3.0 SGN-D-35 3.5 SGN-D-40 4.0 http://www.sintecoptronics.com sales@sintecoptronics.com 11
SLHB-S SLHB-D 型号 ( 双层 ) ØD D 1 D 2 H H 1 SLHB-S-08 0.8 SLHB-S-10 1.0 SLHB-S-12 1.2 SLHB-S-15 1.5 10 10.6 22 6 SLHB-S-20 2.0 SLHB-S-25 2.5 型号 ( 单层 ) ØD D 1 D 2 H H 1 SLHB-D-08 0.8 SLHB-D-10 1.0 SLHB-D-12 1.2 SLHB-D-15 1.5 10 10.6 22 6 SLHB-D-20 2.0 SLHB-D-25 2.5 http://www.sintecoptronics.com sales@sintecoptronics.com 12
SBC-D SBC-S Model (Single) ØD D 1 D 2 H H 1 I SBC-D-08 0.8 SBC-D-10 1.0 SBC-D-15 1.5 SBC-D-20 2.0 M10*0.5 14 17 5 13 SBC-D-25 2.5 SBC-D-30 3.0 Model (Double) ØD D 1 D 2 H H 1 I SBC-S-08 0.8 SBC-S-10 1.0 SBC-S-12 1.2 SBC-S-15 1.5 M10*0.5 14 17 5 13 SBC-S-20 2.0 SBC-S-25 2.5 http://www.sintecoptronics.com sales@sintecoptronics.com 13
SLH-LZ SLH-C SMZK-D Model (Single) ØD D 1 D 2 H H 1 SMZK-D-08 0.8 SMZK-D-10 1.0 SMZK-D-15 1.5 M5*0.5 6.9 12 2.5 SMZK-D-20 2.0 http://www.sintecoptronics.com sales@sintecoptronics.com 14
SPCT-D SPCT-S Model (Single) ØD D 1 D 2 H H 1 SPCT-D-08 0.8 SPCT-D-10 1.0 SPCT-D-15 1.5 SPCT-D-20 2.0 SPCT-D-25 2.5 M11*0.75 28 15 3.5 SPCT-D-30 3.0 SPCT-D-35 3.5 SPCT-D-40 4.0 Model (Double) ØD D 1 D 2 H H 1 SPCT-S-08 0.8 SPCT-S-10 1.0 SPCT-S-15 1.5 SPCT-S-20 2.0 SPCT-S-25 2.5 M11*0.75 28 15 3.5 SPCT-S-30 3.0 SPCT-S-35 3.5 SPCT-S-40 4.0 http://www.sintecoptronics.com sales@sintecoptronics.com 15
STC5 Fiber Laser Cutting Head STC5 series cutting head is a newly designed cutting device for fiber lasers. A fully closed-loop control method with high performance capacitive sensor enables STC5 to be a cost effective solution, which demonstrate an impressive auto-focusing features to enable the cutting machine to process any sheet surface waviness. Besides common communication port, STC5 is equipped with Ethernet port in order for real-time height detection, step piercing, leapfrog, pen-up height presetting, constant optical path compensation, extraordinary fast response time, and dual closed servo loop of speed and position feedback. Features: Fully closed speed and position loop Ethernet communication port Step piercing Leapfrog jumping Pen-up height presetting Constant optical path compensation Extraordinary response time Auto-focusing for surface waviness Crash protection No signal attenuation over long distance Thumb drive upgrading firmware Specifications: Part number STC5-xxx (xxx: QCS or QBH related to fiber adaptor) Cutting Head Max power input 1000W Lens EFL 100/125/150mm Nozzle diameter 1 to 2mm Nozzle type Single outlet Adjustable focus range -4 to +4mm Fiber adapter QBH(IPG), QCS(Raycus), Other available upon request Maximum assistant gas 2.5MPa Cooling water >1.5l/min, 6mm in diameter Maximum diameter 50x50mm Length 241mm @ FL100 Weight 1.6kg @ FL100 Capacitive Sensor & Focus Tracking Controller Sampling rate 1000Hz Static accuracy 1um Dynamic accuracy 50um http://www.sintecoptronics.com sales@sintecoptronics.com 16
Height sensing range Max travel speed Max cable length Communication port Firmware upgrade Capacitive sensor Alarm Calibration Movement Capacitance monitor Required DC power input Controllable motor 0-10mm 500mm/s(depends on the motor and ball screw pitch) 100m Ethernet Thumb drive Self-accommodating to other cutting head and nozzle Crash protection, edge detection Control panel access Leapfrog, step piercing, pen-up height presetting Oscilloscope 24VDC Servo motor such as Moon, Panasonic etc Notes: Fiber core diameter of single mode IPG 500W laser is 50um, and the divergence angle from QBH is 160mrad. The reduced divergence angle after QBH-A-060 is 0.4-0.6mrad with 16-20mm diameter, which is less than the cutting head aperture 25mm. Dimensions: http://www.sintecoptronics.com sales@sintecoptronics.com 17
STC2 Nd:YAG Laser Cutting Head We supply the laser cutting heads with auto-focusing function and you can easily cut uneven surface metals for Nd:YAG laser cutting applications. 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. There are following main features of our cutting heads: 1) Suitable to 1064nm wavelength YAG laser cutting system. 2) Suitable to laser power less than 1000W. 3) 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. 4) 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 5) Numerical control port can easily be connected to most controllers. The cutting system automatically tracks the marking head open, close or back to zero. 6) Multiple focusing lenses with various focal lengths. 7) Cooled nozzle design used for high pressure cutting. 8) Over travel protection, collision protection and power-off protection etc. Structure Description High power Nd:YAG self-floating laser cutting head consists of nozzle, focal lenses and auto-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. http://www.sintecoptronics.com sales@sintecoptronics.com 18
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 Max. allowed laser power Focal length of focal lens Max. input beam diameter Adjustable focus range Length of cutting head Max. diameter of cutting head Required DC power input Weight STC2 1000W 80mm/120mm 40mm -4mm~4mm 146mm @ FL=80mm 88mm 24VDC 0.5kg @ FL=80mm We also can supply High-power CO2 Self-floating Laser Cutting Head similar to YAG Self-floating Laser cutting Head after replacing all optics. However, CO2 laser cutting head only can be used to cut metals due to using capacitive sensor. http://www.sintecoptronics.com sales@sintecoptronics.com 19
STD80 Fiber-coupled Nd:YAG Laser Welding Head STD80 series laser welding heads are suitable for the fiber-coupled Nd:YAG laser beam via the connector D80. The laser beam goes into the welding head via D80 and then the laser beam is focused onto the workpiece to be welded. The co-axial assistant gas can be input via gas connector. The fiber connector D80 and focusing lens inside the head will be water-cooled for high power laser. Part number Laser Laser wavelength Input connector type Focal length of focal lens Focusing adjustable range Cooling Assistant gas Max. Allowed input laser power Option STD80-H Nd:YAG 1064nm D80 100 or 120mm 15mm Water cooling for both input connector and focusing Co-axial gas inlet & outlet Average 500W & <30Hz Co-axial CCD and monitor Part number Laser STD80-V Nd:YAG Laser wavelength 1064nm Input connector type D80 Focal length of focal lens 100 or 120mm Focusing adjustable range Cooling Assistant gas 15mm Water cooling for both input connector and focusing Co-axial gas inlet & outlet Max. Allowed input laser power Average 500W & <30Hz http://www.sintecoptronics.com sales@sintecoptronics.com 20
Beam Delivery System These type laser beam delivery devices designed to meet industrial environment constrain providing safety and sealing against contamination for free space laser beam path. Static and adjustable laser beam manipulation options are available. Optical mirror replacement can be accomplished without affecting alignment. All the beam delivery devices come with Z-axis adjustable, gas inlet and nozzle. Custom-made devices are available upon request. For high power laser, water cooling is provided. Sealed for industrial requirements Stable and accurate Easy mounting Classification: LBD-1064-20-80W LBD: laser beam delivery 1064: laser wavelength, 1064nm, 10.6um, 532nm, 355nm or 355nm 20: clear aperture in mm. 80: focal length of the focusing lens in mm W: W means water-cooling. Examples: LBD-10.6-20-80: length 80mm LBD-10.6-20-100: LBD-10.6-15-60: LBD-1064-20-75: Air-cooled CO2 laser beam delivery, focal maximum allowed input beam diameter 20mm Air-cooled CO2 laser beam delivery, focal length 100mm maximum allowed input beam diameter 20mm Air-cooled CO2 laser beam delivery, focal length 60mm maximum allowed input beam diameter 15mm Air-cooled Nd:YAG laser beam delivery, focal length 75mm maximum allowed input beam diameter 20mm http://www.sintecoptronics.com sales@sintecoptronics.com 21
CO2 Compact Manual Attenuator We supply CO2 compact Manual Attenuators that allow you to vary laser output power. Our Manual Attenuators allow the user to externally vary the power delivered from the laser. Many lasers only vary their output power by pulsing full power on and off, and this does not always provide the fine levels of control needed for some materials. This device will give infinitely variable control of the transmitted beam from approximately 6% to 100%. Using enhanced coated Brewster plates the transmittance range can be changed from 0.04% to 98%. When used with a laser of up to 100W the CO2 compact Manual Attenuator can left be air-cooled. When used above 100W then the optional water-cooled jacket should also be fitted. Features: Vary power delivered from the laser Optional cooling jackets Provide fine levels of control The attenuator is a cost-effective solution to low-power beam delivery that is easy to understand, easy to use and easy to order. Table 1: Manual Attenuator specifications Part Number Height Length Clear Aperture STC-MA 55mm 120mm 19mm Table 2: specifications Laser Power Clear Aperture Up to 500W 14.5mm to 22mm http://www.sintecoptronics.com sales@sintecoptronics.com 22
Beam splitter, which splits input laser beam into two or more beams (called sub-beam), is widely used in laser applications. Sub-beam can be delivered in wanted direction with optics, and all the sub-beams can be assigned different power percentage to cater versatile applications. Laser Beam Splitter Typical beam splitter produced by Sintec is a 2-channel splitter which divides the input beam into two equal power with same optical properties. Multiple reflectors and transmissions are employed in the splitter system, and special optical design delivers sub-beams with same property, which enable the same spot size and equal power density at the focus of following convergent optics, so that same application performance can be achieved in different channels. High efficiency can be obtained where a beam splitter is involved to output multiple laser beams. It is the most perfect solution for multiple beam processing production lines because of the beam splitter s high advantages: multiple channel, no power difference, sharing laser source and low cost. The power difference measurement has been conducted in the 2-channel beam splitter of a fiber laser marking system, which shows only 0.37% power difference between 2 channels. Input Laser Power Sub-beam1 Sub-beam 2 Difference 8 W 3.61 W 3.65 W 0.55% 10 W 4.32 W 4.29 W 0.35% 12 W 5.82 W 5.77 W 0.43% 14 W 6.95 W 6.89 W 0.43% 16 W 7.74 W 7.68 W 0.39% 18 W 8.52 W 8.50 W 0.12% 20 W 9.65 W 9.59 W 0.31% http://www.sintecoptronics.com sales@sintecoptronics.com 23