SP-42 Mini Mixing Wheel rotates up to six 8oz (237ml) sample jars over a 10—60rpm adjustable speed range. The large three-finger thumbscrew clamps lock bottles securely at a 45° angle (as specified by ASTM D2013) or other required position. The sturdy bench unit with painted steel frame has resilient rubber feet and includes a 6ft (1.8m) three-wire cord. The remote speed control module permits safe use away from wheel rotation. The continuous-duty 1/30hp motor is adequate to rotate containers with diameters up to the 3-1/2in (89mm) limit of the clamps, but SPA-60 wide-mouth, straight-sided 8oz glass jars with 58mm cap are recommended. When permissible, SPA-64 metallic Jack Rocks may be added to samples to speed the mixing process. Order the TR-502 transformer for 230V applications.