Home › Blog › Buying Guide › What Do Buyers Look for Before Investing in a Pre-Owned, Used, Secondhand, Surplus CNC Equipment Before Purchase Gildemeister CTX 400 TWIN CNC Turning Center 2 Turrets 2 Spindles made in Germany When evaluating a pre-owned / used / surplus multi-spindle / twin-turret CNC turning center such as the Gildemeister CTX 400 Twin (2 turrets, 2 spindles), a buyer must be extra diligent, because the complexity (multiple spindles, turrets, driven tools, C-axes, etc.) compounds the risks....