Ophthalmic unit CE, FDA, ISO, 18 month warranty Automatic Arm 360 Rotation supported Promotion, high cost performance Ophthalmic unitCE, FDA, ISO, 18 month warrantyAutomatic ... : 330mmAngle of rotation for chair: ±60°Lifting height for chair: 150~200mmLoading for chair: 70 ~150kgs(electric);70 ~200kgs(hydraulic)Lifting ... big force.9. Choosing suitable styles according to your room. Ophthalmic unit