Model: VM-2000 For mixing the contents of several test tubes simultaneously or a flask, you can choose Vortex Mixer with platform head. Adjustable switch can let the unit operate continuously or operate by pressing the head of the unit. Features: 1. Compact, robust, and durable design for efficiency. 2. Variable speed control. 3. Continuous operation or automatically press start. 4. Fast, thorough, and quiet vortex mixing action, but vibration free. 5. Using high quality motor to achieve the performance. 6. VM-2000 with a platform head suitable for mixing the contents of several test tubes simultaneously or a flask. 7. VM-2000-C with a single cup head for mixing the content of one tube. 8. Quality certification: ISO 9001, ISO 13485 Specification: 1. Model VM-2000 2. Order No. VM-2000 3. Top head Rubber platform head with ?80mm 4. Max. Speed 3,000rpm at 60Hz; 2800rpm at 50Hz 5. Overall dimension W123 x D163 x H170 (mm) 6. Weight (N.W./G.W.) 3.7 / 4.2 Kgs 7. Power Supply AC 110V 50/60Hz (220V 50/60Hz available)