Automatic Door Closer

--main material: aluminium alloy

--Imported material for oil seal, preventing from oil leakage better

--Pistion gear rack is made of high-carbon steel,processed through high-frequency quenching and tempering which brings longer service span of product

-- High-quality aluminum alloy die-casted machine body, protected by three layers of bright lacquers which prevents from oxidation.

--Door width:500-1000mm

--Door bearing weight:30-55kg

--Hold open/none hold open: optional

--Hold open angle:90°

--Max open angle:180°

--Suitable temperature: -40 °C, -60°C

--Useful life:300,000 times

--Warranty:1 years ( BUT not include the man-made destory)