The SG-18-1S is a DC starter-generator with mixed excitation and forced air cooling, designed for electric starting of diesel engines, onboard power supply, and battery charging.

Within the power supply system, the unit operates in two modes, functioning as a starter during engine start and as a generator after engine start to supply electrical consumers and maintain battery charge.

The starter-generator is applied in engine-driven onboard electrical systems of aircraft and ground equipment equipped with DC power networks.

The product is also known under alternative designations СГ-18-1С, SG18-1S, which refer to the same product type.

Product Type: DC starter-generator
Function: Engine starting, onboard power generation, battery charging
Application / Where Used: Aircraft onboard electrical systems
System / Installation Area: Powerplant electrical equipment
Operating Voltage: 28.5 V
Nominal Power: 18 kW
Armature Speed (Nominal): 3600–6200 rpm
Operating Mode: Continuous (generator), intermittent (starter)
Overload Capability: Up to 800 A for 1 min with 30 min interval
Insulation Resistance (Heated): 1.5 MΩ
Direction of Rotation: Clockwise (viewed from drive side)
Cooling Method: Air cooling
Construction Execution: Dust and splash protected, single-wire, shielded
Dimensions: Diameter 250 mm; length 600 mm
Weight: Not more than 78 kg
Welding Mode (Open-Circuit Voltage): 60 V
Welding Current Range: 10–300 A
Duty Cycle (Welding): 40%
Technical Documentation: Product passport SG-18-1S

All shipments are carried out from our international warehouse in Dubai (UAE), as well as from our partners’ remote warehouses.

In Stock — items available in stock at the Dubai warehouse are dispatched within 5–10 business days after receiving 100% prepayment.

Remote Stock — items available at our partners’ remote warehouses are supplied within an average of 30–45 business days after receiving 100% prepayment.

Pre-Order — made-to-order products are manufactured and delivered within an average of 45–60 business days. Payment terms: 50% advance payment to start production, with the remaining 50% paid before dispatch from the Dubai warehouse after full readiness for shipment.

Returns & Changes (Restocking Fee)
For selected items, a RESTOCKING FEE of 10% may apply in case of return, order cancellation, or changes to the order specifications. This condition applies only to certain products and is confirmed at the order approval stage.

Warranty
All products are covered by a standard 6-month warranty.
Extended warranty is available upon request and is agreed individually; it may affect the final product price.