AS TMF 952-12 (R2017) pdf free download.Standard Specification for Mixing Machines, Food, Electric.
6. Physical Requirements
6. 1 L)esign and Manufacture—The mixer shall meet the then current applicable requirements of NSF/ANSI No. 8 and ANSI/UL 763. Accessories, such as agitators, howl trucks, bowls, tables, extensions, adapters. splash covers, and storage stands shall meet the applicable requirements of NSF/ANSI No. 2 or NSF/ANSI No. 8 at the lime of purchase. Optional accessories, component parts, assemblies, and spare parts shall be identical to the extent necessary to insure interchangeability between mixers.
6. 1 . I C’onpliancc’ with NSbYANSI No. 8—Acceptable evidence of the mixer meeting the requirements of NSF/ANSI No. 8 shall be the NSF listing mark on the finished product and listing in the manufacturer’s product listings on the NSF rebsile, nsf.org, or a certified test report from a recognized independent testing laboratory acceptable to the user, or a certificate issued by NSF under its special one time contract evaluation/certitication service.
6.1 .2 compliance with ANS1/UL 763—Acceptable evidence of meeting the requirements of ANSI/UL 763 shall be a UL Listing mark on the mixer, or a certilied lest report from a recognized independent testing laboratory acceptable to the user.
6.2 Dri’e Mechanisn,—Thc mixer shall be driven by an electric motor, through a reduction system. to the planetary/ beater shaft system. The entire drive system shall be enclosed rithin the mixer itself. All constituent active parts within the drive system shall be replaceable. All mixers shall be equipped with an internal clutch, shock absorber, or belt drive to minimize the shock of starting or shifting gears of the mixer. Size 60 and larger gear drive speed selection mixers shall either he equipped with a shift interlock switch that will automatically disconnect power to the main drive motor if the operator attempts to shift speeds without first shutting otT the motor or be designed to permit speed changes during operation.
6.3 Speed Selector- A speed selector shall be provided to change agitator speed. Either continuously variable or discrete speed selection is acceptable. A means to provide the user with reference marks for speed repeatability is required. In no case shall less than three distinct speeds be available on gear boX equipped mixers or three distinct markings he available on continuously variable transmissions.
6.4 Beater Shaft—The beater shaft shall he vertically mounted anti shall be held securely in place. Agitators shall fit securely and shall be capable of being removed or replaced without tools. The beater shaft shall be connected to planetary gearing to provide two separate rotating motions of the agitator simultaneously.
6.5 Moror.s;—Minimum horsepower rating for the main drive motor of the mixer shall meet the requirements of 4. I . or 4.1.2, as appropriate, if an auxiliary motor is used to perform another function (such as. bowl lifts), it shall he internally interconnected within the mixer to provide a single electrical point connection. Size 5 through 30 mixers shall be available for operation on a 120/60/I line. Size 60 and larger mixers shall be available for operation on a 208/60/3 line. Other voltage availabilities are at the discretion of the manufacturer.AS TMF 952  pdf download.