About this product

This floor spring has dimensions of 270mm*125mm*52mm and supports a maximum door width of 950mm and weight of 90kg. It features two-stage speed adjustment, mechanical hold open at 90 or 105 degrees, and a pressure-reducing valve to prevent damage from strong closing forces. The spring is tested for 500,000 cycles and uses special oil suitable for temperatures ranging from -45°C to 50°C.