Description
Technical Parameters

Product introduction
The Alexandrite Laser ND YAG machine is a multifunctional medical beauty device that integrates 755nm Alexandrite laser and 1064nm ND YAG laser. It enables the two wavelengths of laser energy to accurately locate the corresponding target tissues, and uses high energy to instantly destroy the target pigment or hair follicles, achieving precise hair removal, pigmentation treatment, vascular lesion repair and skin rejuvenation. It is widely used in beauty salons, dermatology hospitals and medical beauty centers.
Product features
Dual Wavelength Design
The Alexandrite laser ND YAG machine combines two wavelengths, 755nm and 1064nm. The former is mainly used for light skin and superficial pigmentation problems, such as freckles and hair removal, because the 755nm wavelength laser can be efficiently absorbed by the melanin in the skin, and the penetration depth is moderate, which is suitable for superficial treatment; while the 1064nm wavelength laser is more suitable for deep tissue treatment, such as tattoo removal and vascular lesions, due to its lower melanin absorption rate and deeper penetration ability. This selective absorption property allows different wavelengths to focus on different types and depths of target tissues, improving the effect of treatment.

Safety
Both the Alexandrite laser and the ND YAG laser use the principle of photothermolysis, which uses laser energy to precisely heat the target pigment or tissue, causing it to decompose or destroy it quickly, while protecting the surrounding normal skin. This is because the device controls the duration of the laser pulse within the thermal relaxation time of the target tissue. Thermal relaxation time refers to the time required for the target tissue to release the absorbed heat. By limiting the laser pulse time to this range, the energy is only concentrated in the target tissue and does not spread to the surrounding tissue. This greatly reduces the thermal damage to the surrounding skin, making the probability of adverse reactions such as redness, swelling, and pigmentation after treatment less than 5%.

Cooling System
The Alexandrite laser ND YAG machine has a built-in efficient cooling system, which provides continuous cooling protection for the skin surface through technologies such as dynamic contact cooling and cold air injection. For example, contact cooling uses cooling chips to directly contact the skin to quickly reduce the surface temperature to about 5°C, while cold air injection directly acts on the treatment area through high-pressure cold air to reduce thermal damage. This instant cooling can control the skin temperature within a safe range, effectively relieve the patient's burning or pain during treatment, and greatly improve the treatment experience.

Flexible Adjustment Settings
The Alexandrite laser ND YAG machine has a variety of adjustable laser parameters, and the therapist can quickly set the laser energy, pulse width, and spot size according to different treatment needs. For example, for hair removal, the therapist can set the energy to 20-30J/cm² to effectively destroy the hair follicles; when removing tattoos, the energy can be adjusted to 30-40J/cm² to ensure sufficient thermal effect to decompose deep pigment particles. When removing hair from a large area, a large light spot of 18-20mm can be selected to cover more skin area and improve efficiency; when removing small tattoos or local pigmentation, a small light spot of 2-5mm can be used to concentrate energy on the target area to avoid affecting surrounding tissues.

Specification
| Laser Type | Alexander Yag laser |
| Wavelength | 1064/755nm |
| Repetition | Up to 10Hz |
| Pulse Duration | 0.250-100ms |
| Spot Sizes | 6mm, 8mm, 10mm, 12mm, 15mm, 18mm |
| Beam Delivery | Lens-coupled optical fiber with handpiece |
| Pulse Control | Finger switch, Foot switch |
| Scree size | 3 working modes |
| Weight | 118kg (260 lbs) |

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