Efficient helix-strike separator (Fig.1) is a fermentation gas-liquid separator applied in broth & foam recycling system of fermentor off-gas。 The off-gas enters the equipment in a radial direction. The separator has a central tube with air deflectors and a stabilizer at the bottom. Though the process of collision, centrifugation and stabilization, foam and aerosol in the off-gas can be separated and recollected. Its performance is evaluated at a leading level at home and abroad. Our company has independent intellectual property rights over this product. Helix-strike separator has been upgraded to the 2nd generation, and is highly recommended by China Fermentation Society for its energy-saving and environmental protective performance.