Pavement engineering sample core SZK-20 Core Drilling Product Quality commitment: one year warranty and lifetime maintenance First, the main purposes: 20-type drilling rig with high-speed cutting technology, and thin-walled diamond drill bits, widely used in engineering construction, municipal engineering, equipment installation engineering and construction quality inspection and other areas of drilling and coring. 1, in roads, airports, ports, dams and other concrete, asphalt, limestone core on the basis of compressive and flexural tests. 2, installation of large equipment drill bolt holes. 3, install bridge handrail and traffic safety railing drilling. Second, the main features: 1, double-column structure, spiral feeding methods, good stability, simple operation and effort. With a line of wheels, easy to move. 2, using high-speed cutting technology and diamond core drill bits, drilling cut high strength concrete, high drilling efficiency, accurate holes, hole wall smooth, good quality into the hole, core samples complete smooth, vibration, buildings No damage. Third, the main technical parameters: 1, the maximum drilling diameter: 150mm 2, maximum drilling depth: 400mm 3, the output speed: 500-1000 rev / min 4, Power: 13 horsepower (Honda 390 gasoline) 5, Weight: 60kg 6, Dimensions: 1200 × 800 × 1300mm IV procedure: 1. Preparation before use (1 Joined 93 # unleaded gasoline and high oil, add the oil dipstick according to how much can prevail scale (2 in. the column filling oil, and turn the feed handle and output shaft, check whether feed and rotary flexible and reliable. (3 ready for water. (4 check various parts of screws loose .2, install a drill hole, put Three walking round lifting, let the base down to the ground. holes to play and concrete strength is not high, then rely on the rig rig can be fixed by its own weight, the larger the aperture when playing, the rig can not hold its own weight when the rig can be placed on the chassis weight (such as sand bags, iron, concrete blocks, etc.) fixed or play two expansion bolts plus bar (such as channels, etc.) to secure the rig, drilling rigs to be firmly fixed, can not shake, or .3 drilling operations can not be normal, after opening more job to do, you can tap operation, mounted on the drill bit, start gasoline engine (see gasoline engine user manual) to the inlet pipe into the bucket, bucket to mention higher Pump location, then pinching the water suction pump gas-hsiang, after the bucket on the ground water pump to the Sheung Shui throttle to maximum, starting rocked feed handle, touch the ground slowly opening the drill tips: After the first water drilling, feed slowly, WOB smaller Prohibited anhydrous job, it would burn and seal .4 drill, drill when the normal 2-3 mm deep hole drilling, the drill can be turned into a normal feed, feed pressure due to increase at this time, normal drilling tips: feed pressure should be moderate, to maintain uniformity, met crude steel feed pressure to reduce second look to do a listen, listen to the sound of the machine. whether it is normal to see whether the return orifice (risk) .5 water, taken after reaching the final hole depth, you can stop the drill stop drilling requirements are: first shut off the water after the machine, when if deep, not to mention immediately drilling and water supply, and to the water for some time punching the aim of the hole rock powder rinse to prevent rock dust precipitation lead to bury drilling, coring difficulties caused by the product quality commitment: one year warranty and lifetime maintenance