SVL2000 serias roasters have single layer belt and with keeping same aroma of nuts and seeds while roasting.
SVL250 serias roasters have 1 layer belt and with keeping same aroma of nuts and seeds while roasting.
SVL500 serias roasters have 1 layer belt and with keeping same aroma of nuts and seeds while roasting.
SVL1000 roasting oven has got a single layer belt and with keeping same aroma of nuts and seeds while roasting.