High performance HSS rail cutter DRAX-2 System 1

High performance HSS rail cutter DRAX-2

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Loading Port:: China main port

Payment Terms:: TT OR LC

Min Order Qty:: 10 pc

Supply Capability:: 5000 pc/month

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DRAX-2&4

D.O.C. 25&50mm
◎ Made of super tough high speed steel , superiorly-designed geometry for excellent performance of hole cutting
◎ Supply Φ19.0mm and Φ19.05mm weldom shank
◎ Applicable to hole cutting on hard-cut railtracks with high strength

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Type	Size
DRAX-40180	18*50
DRAX-40190	19*50
DRAX-40200	20*50
……‍	……
DRAX-40340	34*50
‍DRAX-40350	35*50
DRAX-40360‍‍‍	36*50‍
‍‍‍‍‍‍DRAX-20135	13.5*20
DRAX-20180	18*25
DRAX-20190	19*25
DRAX-20200	20*25
……	……
DRAX-20340	34*25
DRAX-20350	35*25
DRAX-20360	36*25

‍

Q: What's the difference between a twist drill and an impact drill?: Impact drill is based on the modified twist drill to make it suitable for a variety of operational requirements, the shape can understand it, handle + spiral twist drill is simple, impact drill for spiral handle + + flat head.

Q: How to recognize the quality of twist drills?: General twist drill, a variety of points. It seems to be divided into two major groups. One is pumping out the twist, one is full mill. Now there is a knife bar slotted on top with knife particles. Called fast drilling, this is the high-speed processing of relatively large holes, pumping out the twist drill hardness is not so good, slightly better edge. As long as the mother material is good, the grinding accuracy is high. Now many are using this, relatively speaking, the price is much more expensive.

Q: The installation method of the electric hammer drill: General electric hammer head has a jacket, when the machine is running it is moving along, you put up this set of hammer drop down, then put the drill insert, loosen the coat. There are four grooves on the drill bit, and there are small steel balls in the coat to hold the drill bit

Q: By drilling with a bit, why is the hole drilled straight 2 larger than the diameter of the drill?: Hardness of the machined material --- determine the size of the drill point: cast iron is used at 135 degrees - 140 degrees; aluminum alloy is about 120 degrees;

Q: What method should we pay attention to when drilling small holes and long holes in plain drills?: Coolant added a lot, although the cooling effect is good, but it will make drilling cuttings are not easy to row out. Just use a brush with a coolant, and when the drill is lifting the cuttings, brush some of the coolant on the drill. Each time the drill is drilled down, do not enter too much at once. Especially in the hole drilling more and more deep, but also frequently drill bits, cleaning up drilling chip.

Q: What size drills are we going to use to drill the holes in the M7 and with the larger twist drills?: M thread, the twist drill is used to represent theIf the hole drill with M7 drill bit is 6.5, you can use M7 taps.

Q: How about the speed of the drill bit and the feed of the cutter in the machining center?: 1:S= (1000 x cutting standard value) / (3.14 * tool diameter)The cutting tool standard value is supplied by the cutter supplierF according to cutting tool standard value. Measurement of feed per turn. I usually give D13 1300 RPM feed 250,2: faster than the above3:R6 knife milling 45# steel can give 800-1200 rpm F to 200-400. According to the depth to addition and subtraction.In fact, according to the formula to calculate, the feasibility is not high, you are not programmed to bring the tool standard every time, or, according to experience, it is better

Q: What kind of drilling bit is good for stainless steel?: The characteristics of stainless steel is high toughness, easy to stick a knife. So the drill hardness is high, surface finish better than ordinary bits, the bit angle large (130--135 degrees). At the same time to the full amount of feed and cooling. More than 0.15mm as much as possible without cutting in cold hardened layer. The cutting speed is as low as possible to reduce the cutting temperature. The cutting fluid is made of concentrated emulsions. Commonly used stainless steel drills are: high cobalt bit (M35 bit, M42 bit), in which the M42 bit is the most cost-effective, and carbide drills are also available.

Q: Use an electric drill or hammer installed TV rack?: The TV mounts are all equipped with impact drills which can use 12 impact drills and M8 expansion bolts. Suitable for drilling in cement material hammer, impact drill for existing buildings in non cement material on the wall of borehole.

Q: Grinding the drill bit, how can grinding, and the method of quick crash is what ah?: The edge of the wheel is fixed by the blade." This is the first step between the bit and the grinding wheel. It is often the case that the blade has not been settled so that it is sharpened by the grinding wheel. It must be hard to wear. The "edge" here is the main cutting edge, and the "cut out" means the main cutting edge of the grinding part is in the horizontal position. "Wheel surface" refers to the surface of the grinding wheel. "By" means slowly moving closer. The drill cannot contact the grinding wheel at this time.

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