1、 The overall dimensions of the whole vehicle shall comply with the provisions of national standards. And according to the approved product drawings and technical documents.
2、 The purchased parts and outsourcing parts shall have the product certificate of the manufacturer and meet the requirements of relevant standards. They can be assembled only after passing the inspection of the mixer manufacturer.
3、 The total mass of the mixer determined by the factory shall not exceed the maximum allowable value of the chassis, and the steering shaft (wheel) load mass and roll stability angle shall comply with the provisions of GB7258.
4、 The weld should be even and straight. There shall be no weld leakage, crack, slag, burr and sand coating on the surface.
5、 All exposed ferrous metal surfaces shall be treated with anti rust treatment. The exterior decorative paint shall be beautiful and elegant, and comply with the provisions of GB7258.
6、 The allowable time from feeding to discharging is 90mh, and the continuous transportation of mixing drum is not more than 300 revolutions. When the mixer is running, the high speed shall not exceed 50km / h
7、 After the ready mixed concrete is loaded and transported to the delivery place at the specified stirring speed and delivery time, the quality of the concrete should meet the requirements of the national standard.
8、 The size of the feed hopper outlet shall not be less than 650mm, and the height from the ground shall not be more than 3.8m.
9、 The discharging speed of cement mixer is not less than 0.65m3/min, and the discharging residual rate is less than 2-5%. The feeding speed of the mixer shall not be less than 2.7m3/min
10、 The conveyor should be installed firmly. The connecting parts shall not be damaged or deformed, and the upper part and chassis shall not deviate from the original fixing device.
11、 Under the condition of large total mass, the vehicle can overflow through 14% of the ramp at the speed of 20km / h.
12、 The braking performance meets the national standard. The noise outside the driving vehicle shall meet the requirements of the national standard.
13、 The sealing performance of the whole vehicle is good, and all sealing surfaces, pipe joints and all connecting parts shall be free of oil and gas leakage.
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