China offers new SWS2 35mm air defense system as cost-effective alternative to Russia’s Pantsir S1.

As reported by ArmaduraXXI on November 4, 2024, at the Zhuhai Air Show 2024, China North Industries Corporation (NORINCO) is set to introduce the latest version of its SWS2 35mm self-propelled anti-aircraft gun (SPAAG), combining artillery and missile components to counter a range of aerial threats. Built on the VN-1 8x8 armored vehicle platform, this modified SWS2 system likely integrates additional technologies and subsystems to enhance mobility, firepower, and targeting precision, with a primary focus on countering drones, cruise missiles, and low-flying aircraft.
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Also known as the LD35, the SWS2 is armed with a 35mm single-barrel revolving cannon mounted in an enlarged, remote-controlled turret, which now includes up to six surface-to-air missiles (SAMs), boosting the system’s capacity to target both air and ground threats. (Picture source: Twitter/ArmaduraXXI)

Also known as the LD35, the SWS2 SPAAG is equipped with a 35mm single-barrel revolving cannon mounted in an enlarged, remote-controlled turret—an improvement likely addressing ammunition limitations observed in previous models. The turret now includes up to six surface-to-air missiles (SAMs), boosting the system’s capacity to target both air and ground threats. It can rotate 360 degrees, with the 35mm cannon elevating from -2° to 85° and the SAMs from -5° to 70°. Optimized for close-range air defense, the cannon has a maximum effective altitude of 3,000 meters and a range of 4,000 meters.

The SWS2 integrates radar and electro-optical sights for guided targeting, enabling precision engagement of small aerial threats. The 23-ton vehicle’s turret emphasizes modularity, allowing it to accommodate various missile types depending on user requirements. Automated ammunition handling systems support the 35mm cannon’s firing rate of up to 1,000 rounds per minute, achieved through a revolver-style mechanism designed to streamline firing and improve reliability.

The SWS2 addresses challenges associated with older towed anti-aircraft systems, which lacked mobility and effective engagement range. The VN-1 platform, based on the ZBL-08 chassis, features a rear-mounted engine, a front-driving cabin layout, and is engineered for all-weather, autonomous operations. The VN-1 operates across diverse terrains, with a maximum road speed of 90 kilometers per hour, slightly reduced due to the turret’s increased weight. Its fully-welded light armor offers basic protection against small arms fire and artillery fragments, enhancing survivability in operational settings.

NORINCO’s advancements in 35mm ammunition technology are evident in the SWS2’s ammunition options, which include high-explosive incendiary (HEI) and programmable fragmentation rounds suited for drones and small airborne targets. These programmable rounds contain tungsten submunitions, optimized for performance against smaller threats. Compatibility with other Chinese air defense platforms, such as the PGZ-07 and CS/SA-1, reflects NORINCO’s approach to adaptable ammunition systems across its defense portfolio.

Internationally, NORINCO positions the SWS2 as an export-ready alternative to similar air defense systems, like Russia's Pantsir S1. With an estimated lower cost and a modular turret configurable with different chassis and missile systems, the SWS2 may attract export customers seeking adaptable air defense options. NORINCO’s display of the system at the Zhuhai Air Show suggests potential export interest, with regions like Southeast Asia identified as prospective markets. Earlier versions of this system underwent limited trials within the Chinese military; with recent technical upgrades and successful testing, the SWS2 appears poised for broader deployment both domestically and internationally.