The resin tank mixer is not included as some users will prefer to use a single one for all the resin and clean it on each resin change while others might prefer to have 1 mixer per resin, so look in the accessories if you need one or more.
The Form 4 Resin Tanks are built to last and deliver consistent performance for at least 75,000 layers of printing (typically 1-2 years for the average user).
Low Force Display (LFD)™ 3D printing uses a flexible yet strong dual-layer film tank for consistent, high-quality prints. Every resin tank includes a reusable lid, making it easy to stack tanks and store resin outside of the machine. With a separate tank for each individual resin color or type,switching materials is as easy as sliding in a new tank.