I'm not sure what is considered a mid-arm, but when I googled mid arm machines, the Juki site came up. When I talked to the salesperson, they told me it was a mid arm (it didn't have 18" throat space). The invoice I received with the machine said JukiTL98Q mid arm quilting machine. I only know that there is a lot of space compared to a regular machine. It is enough for me and I don't think I will need another machine with more space.