Laser Alexandrite Rod

Gold Technic can supply a range of Alexandrite rods for all Alexandrite laser machines. Customised sizes upon request.

Alexandrite is the leader of a class of tunable solid-state laser materials. Enhanced by several years of research and development, it features a broad wavelength tuning range of 710 – 800 nm with the capability to store and efficiently extract multi-joule pulses of energy.

It is one of the most robust solid-state laser materials available with a thermal shock resistance five times that of Nd:YAG.

Alexandrite lasers emit at a wavelength of 755 nm, that is well within the absorption spectrum of our skin’a melanin compound, and this makes the laser perfectly suitable for removing hair. Modern Alexandrite lasers also allow the removal of most tattoo inks with a low risk of scarring. Alexandrite lasers are most effective for removing green and black inks. The absorption by melanin in the skin results also in hypopigmentation, enabling the use of these lasers for treatment of pigmented lesion, brown pigment spots, lentigines and age spots.

Alexandrite’s unique combination of properties offer application in such areas as dermatology, lithotripsy, spectroscopy, atmospheric lidar, testing of fiber optics and photodetectors, materials processing, pumping of dye lasers, non-linear optics studies and annealing of semiconductors.

Laser Alexandrite rod Applications

In many cases, roughly 100mm to 130mm long cylindrical laser rods with a diameter of e.g. 6.35 mm (1/4 inch) are used and lamp-pumped with one or two xenon flash lamps. Due to the particularly high mechanical and thermo-mechanical strength of the material and its benign thermo-optical properties, very high pump powers can be applied to the flash lamps (often with average powers of several kilowatts

General Features of Alexandrite rods
– Low losses and superior lasing efficiency
– Certified Cr concentration uniformity
– Low wavefront distortion
– Multiple specifications on sizes
– Guaranteed traceability through laser marking
– Long term stability
– AR broad band coating @755 ± 50 nm

Laser Marking Machine

Technical Specifications of GTM-20W
Laser source	Fiber Laser
Laser Wavelength	1064nm
Power Consumption	0.8kW
Engraving Line Speed	<10000mm/s
Repeating Frequency	20-100KHz
Pulse Duration	0.2-20ms
Software	Ez-cad
Work Area	100x100mm
Marking depth	<0.8mm
Minimum Line Width	0.05mm
Minimum Character Size	0.5mm
Repeatability	+/- 0.002mm
Power Supply	AC220V 50/60Hz Single Phase
Cooling	Forced Air cooling system
Language	English, Traditional Chinese, Simplified Chinese, Japanese, Korean
Supported OS	Windows XP
Fonts	True Fonts, JSF, Dot Matrix
Encoded data type	Barcode, QRcode, Datamatrix, Chinese Sensible code
Object format	Bitmap, Vector format
Supported object format	AI, PLT, DXF, BMP, JPG
Dimensions	L:720mm W:630mm H:1400mm
Net Weight	Approx 80kg

Laser Focusing Head

Laser focusing head for modifying spot size, focusing laser to hard to reach spaces on your chain machine. We can also custom make focusing head to your specification. We offer a wide range of laser focusing heads to satisfy complex industrial applications. Straight, right angle (90°), power monitoring and camera configurations are available, along with a wide range of focal lengths and laser beam spot sizes ensure the proper solution for all precision laser welding requirements

We have L shape and straight focusing head. Usually 80m or 100mm focusing length. Suitable for the fiber-coupled Nd:YAG laser beam using the D80 connector with our laser fiber. The laser beam is delivered by the laser fiber and focused onto the workpiece to be welded. The co-axial assistant gas can be input via gas connector.

Please consult us for more information.

MEL32265 MEL32249

Laser Welding Machine

200W Jewelry Spot Laser Welding Machine

Technical Specifications of GTS-200W
Laser source	Pulsed Nd: YAG
Output Path	Single Path (Standard)
Laser Wavelength	1064nm
Max Power Output	200W
Peak Power	7KW
Single Pulse energy	120J
Pulse Frequency	1-30Hz
Pulse Duration	0.2-20ms
Welding spot diameter	0.2mm-2.0mm
Vision System	10X stereo microscope with automatic shielding
Power Supply	AC220V 50/60Hz Single Phase
Working table	750*1000mm
Programmable Parameter setting	100 storage setting
Cooling	Internal Compact cooling system
Language	English, Traditional Chinese, Simplified Chinese, Japanese, Korean
Dimensions	L:890mm W:480mm H:1140mm
Net Weight	Approx 140kg

There are many different applications the laser welding machine can perform. Some examples are:

Resizing rings, re-tipping prongs, repairing bezel settings
Reassembly of broken necklaces, bracelts and earrings
Repairing costume jewelry, eyeglass frames and watch straps
Filling porosity and creating made-to-order designs

Electronics and Motor

Machine accessories

We can supply machine accessories for your maintenance needs. It is always advisable to stock spares for your running machines. Do check with us for any other items not listed below.

Sensors

Ring Sensors are specialty inductive sensors that determine the presence of metal chains passing through them. They are available in a variety of sizes ranging from 1.0 mm to 10.0 mm.

Switches

Control switches for your machinery, speed control and emergency stop switch are available for replacement.

Circuits

Replacement circuit boards for your CNC machines to ensure smooth running of machine. Please check with us for stock and availability. Provide model of machine and year of make.

Machine Tooling

Some of the common consumable parts are:

Machine spiral
Machine pin
Upper and Lower knife
Machine jaws
Machine pliers/ Facon
Carbide spare parts

Single Point Dresser

Single Point Diamond Tools sets the industry standard for straight and simple form dressing applications. Gold Technic’s Single point dressers are manufactured at our facility in Singapore. We can manufacture resettable and non-resettable dressers. Dressers can be manufactured according to your specifications. Single point diamond dresser shanks can be modified or designed to meet your requirements. Do contact us for a discussion.

Carat Weight

1/4ct 0.25ct

1/2ct 0.50ct

3/4ct 0.75ct

1.0ct

1.5ct

2.0ct

Forming Dressers

Form Tools is lapped to specific angles and radii required for a particular application, machine, contour dressing system, or CNC operation. Due to the high degree of accuracy necessary, the diamond is of special shape and quality. We use vacuum braze technology to secure the diamond onto the holders and this surpasses all traditional brazing methods.

UK StarDuster

Introduction

The UK StarDuster 800M™ is primarily used to create a soft paved shiny look on jewelry pieces. Each
pen is precision constructed out of top grade stainless steel that is rust free and comfortable to use over
extended period of time. Usage of the UK StarDuster 800M™ is not limited to the jewelry industry. It can
also be used as a simple engraving tool for hobbyist, watchmakers and anyone who needs an excellent
engraving pen for their application.

Advantages of UK StarDuster 800M™

• Designed to produce minimal vibration for extended periods of usage.
• Adjustable speeds and interchangeable diamond pins to let users create the ideal design
• Fully hardened diamond pins and sleeve for long working life.

Applications

Recommended for working with Gold, Silver, Copper and Platinum.

Some examples of application are listed below:

Excellent outlook

For delicate surfaces, use springs provided in the UK StarDuster 800M™ set
to lighten the pressure of each punch, leaving a smooth velvet surface on
rings and accessories.

Smooth texture

To achieve different texture, there are 5 types of diamond pins to choose from.
Each type specially set to cater to your needs.
1. Model “J” – For large surfaces
2. Model “NJ” – For small / delicate surfaces
3. Model “BJ” – Fitted with bigger diamond tip for long life
4. Model “BNJ”- Fitted with bigger diamond tip for long life
5. Model “S” – For a coarse finished texture

Optimal Shine

Dust on small balls to give “frosted” shiny appearance. Use our Model “S” pins
to enhance shiny effect.

Complete set includes:

1 x UK Star Duster 800M pen
1 x Quick Coupling
Diamond pin
1 x Model “J”
1 x Model “NJ”
1 x Nozzle Key
1 x Blue Air tu

Operating manual for UK StarDuster 800M™

Please read and understand before operation.

Quality Assurance

Each UK StarDuster 800M™ pen and the diamond pins are put through stringent quality test to ensure
that they meet the quality requirements. The UK StarDuster 800M™ set is guaranteed to conform to the
operation requirements.

Inspection

When unpacking, please check for the following items:
1. Visually inspect if there is any damage to the UK StarDuster 800M™ and its parts caused by
transportation.
2. Check for any looseness or for any disconnection of parts.
Note: Should you notice any trouble or damages with the UK StarDuster 800M™ or its accessories, please feel free to contact
us.

Assembly

I. Installation of a Quick Coupling between the air compressor and the UK StarDuster
800M™
The airline must be fitted with pressure regulator and water filter (not included in the set) for longer
service and to avoid jamming/damage to equipment.
Water in the air line will cause damage to the UK StarDuster 800M™. Water must be fully eliminated for
the air supply to avoid corrosion inside the UK StarDuster 800M™. Drain the air tank and line daily or as
often as necessary, depending on weather and temperature conditions.

Operation

Re-examine prescribed installations once more before operating the UK StarDuster 800M™. Please
operate equipment in accordance with the following procedures to obtain the specific performance of the
UK StarDuster 800M™.
1. Connect parts as shown in the assembly section.
2. Turn on the air compressor to 25PSI to test the equipment.
3. Gradually increase the PSI to 30 to obtain best results.
4. For best performance, the UK StarDuster 800M™ is recommended to be used with high quality
air compressor and original Model “J” and Model “NJ” diamond pins.
For first time users, it is recommended that you should make test trials using the UK StarDuster 800M™
so as to familiarize with its operation.

Technical characteristics

Maximum PSI = 30PSI
Minimum PSI = 25PSI
PSI= Pound per square inch

Operating requirement

1. A set of UK StarDuster 800M™
2. Air compressor fitted with pressure regulator and water filter with Speeds of PSI 25 to 30.

Accessories

Part	Quantity
UK Star Duster 800M pen	1 piece
Quick Coupling	1 piece
Diamond pin Model “J” Model “NJ”	1 piece
Nozzle Key	1 piece
Blue Air tubing (Airline)	1 meter
Spring	10 pieces

Safety instructions:

1. Before handling and using the UK StarDuster 800M™, thoroughly familiarize yourself with
necessary safety precautions
2. We would recommend users to put on safety goggles when using the UK StarDuster 800M™.
3. Do not touch the tip of the UK StarDuster 800M™ with bare hands when in operation.
4. Do not look or point the diamond pin at yourself or others when in operation.
5. Do not operate UK StarDuster 800M™ over 35PSI.
6. Higher pressure will cause excessive wear on the UK StarDuster 800M™‘s internal parts and
shorten its life.
7. Please disconnect the UK StarDuster 800M™ from the air compressor when not in use.
8. Do not use on extremely hard surfaces.
9. Maintain the equipment in a safe working condition. Service the UK StarDuster 800M™ regularly
to prevent faulty operation and rectify any faults promptly.
10. If the problem cannot be rectified, please contact us immediately.

Please note that failure to conform to the safety instruction might result in serious injuries. Failure to conform to the
recommended range of PSI will result in malfunction of equipment. Higher pressure is not desirable as it may cause damage to
internal parts of the UK star duster 800M.

Finally, we like to thank you for choosing the UK StarDuster 800M™. We hope that you will enjoy using it
as much as we do to serve you as our customer. Please feel free to contact us for further enquires.

Diamond Pins

Introduction

The UK StarDuster 800M is primarily used to create a soft, paved, shiny look on jewelry pieces. Each
pen is precision constructed out of top-grade stainless steel that is rust-free and comfortable to use over
extended period of time. Usage of the UK StarDuster 800M is not limited to the jewelry industry. It can
also be used as a simple engraving tool for hobbyist, watchmakers, and anyone who needs an excellent
engraving pen for their application.