Air conditioning units are designed for efficiency, durability, and environmental control, our units help ensure smooth ground handling and turnaround operations in all weather conditions Whether servicing commercial planes or private jets, our units deliver powerful and precise cooling and heating to ensure comfort for passengers and crew.

Green Optics possess proprietary CVD-based Zinc Sulfide (ZnS) production technology for defense and industrial multi-wavelength optical materials. We have core technological capabilities to manufacture high-quality ZnS products tailored to meet diverse customer requirements. ZnS Material Optical Performance and Processing ZnS materials produced through CVD processes provide high transmittance exceeding 70% in the SWIR wavelength range (8-12 μm). When these materials undergo additional Hot Isostatic Pressing (HIP) treatment, the crystal structure undergoes recrystallization, improving transmission characteristics to achieve over 70% transmittance in the visible (VIS) wavelength range of 0.45-0.8 μm. This process extends the application range of optical materials previously limited to SWIR and LWIR bands, delivering superior optical performance across multi-wavelength regions from VIS to LWIR. Material Specifications: - STD-ZnS (Standard ZnS Material): Manufactured via CVD process, exhibits transmittance exceeding 70% in LWIR wavelengths (8-12 μm) with high physical hardness (Knoop hardness: 210 kgf/mm²). - MS-ZnS (Multispectral ZnS): Converted from STD-ZnS through HIP processing, extends wavelength range into the visible spectrum. While crystal structure recrystallization during this process reduces hardness somewhat (approximately 150 kgf/mm²), it still meets MIL specifications. This dual-processing approach enables comprehensive wavelength coverage while maintaining military-grade durability standards.

40mm, 76mm, 105mm, 127mm, 155mm Proximity Fuzes Multi-Function Fuzes

EO/IR Payload System EOTS (Electro-Optical Tracking System) is an electronic optical image tracking device that identifies danger and emergency situations on the battlefield, monitors and tracks tragets, and calculates their coordinates, and is an essential equipment for drones that can be used in both military and private sectors. M1 and M2 were developed to use a common mount that connects to the drone by keeping the size of the gimbal assembly the same at 4 inches. M1 can be recognized at a maximum of 0.2km for humans during the day and at night, and M2, which operates in adverse conditions at night, can be recognized at up to 1.0km for tanks in the form of IR continuous zoom.

Sungjin Techwin’s military-grade switches are engineered for mission-critical performance in the most demanding aerospace and defense environments. Designed with superior durability, ergonomic precision, and NVIS compatibility, our switches are qualified to MIL-STD and DO-160 standards. They are deployed across leading global platforms such as F-35, KF-21, T-50, CH-47, and B-250. With proven reliability and over 20 years of production expertise, Sungjin Techwin continues to deliver innovative cockpit control solutions that meet the highest standards of safety and performance.

Our XR-based aircraft maintenance simulator is officially certified by the Ministry of Land, Infrastructure and Transport (MOLIT) of South Korea for training and education. It provides specialized training environments for the A321, B737-MAX, and B737-800NG aircraft, featuring over 80 detailed modules—including procedures for engine removal, main landing gear installation, and more. This subscription-based simulator is fully compatible with smartphones, tablets, and wearable XR devices, enabling seamless access through a cloud-based web service. Users can train anytime, anywhere—perfect for both remote learning and remote maintenance scenarios. Compared to traditional classroom learning, the XR platform is 4 times more effective and requires only one-third the training time. It also improves user confidence in real-world technical applications by up to 275%. By transforming traditional paper manuals into immersive, interactive training environments, the simulator delivers the next generation of aircraft MRO education for both civil and defense sectors.

These units are very compact in size and weight is less than 400 kg. Units in this compartment can have rated output power up to 90 kVA. Units are fully compliant with the required parameters and are used as solid state units. EAC-series frequency converters are strictly compatible with all types of aircraft requiring output AC and confirm the international standards.

Maintenance Increase security and productivity to reduce costs and minimize downtime. Willing to provide our customers with high-performance technical assistance, we offer scheduled and unplanned maintenance interventions, as well as periodic verification of measurement channels using our calibration equipments. Our systems allow us to perform these operations internally or at our customers site.