What Spare Parts Do You Need To Maintain A Pipe Threading Machine What spare parts do you need to maintain a pipe threading machine? For a heavy duty made in China pipe threading machine usually we offer one year warranty, while for a economic type pipe threader we offer 3 month warranty. After this period you will have to buy extra replacement parts to fix the machine. First of all, the threading dies(chaser) and cutting blade are wearing parts, regardless of wether the quality of machine is good or not you will have to prepare them. Normally a threading dies life span is hundreds of pipes, the life of the die depends on the material 9Cr2/9CrSi/HSS and production craft. Secondly, if you are an end user who purchased a pipe threading machine for your own use, buy a complete assembly parts will be easier for you to change old one. For example, you can buy a complete die head, a complete pipe cutter, pipe reamer, front chuck set, rear chuck set, motor, gear box, oil pump. This will solve 90% problem. However, if you would like to replace a single parts, you can refer to below chart (Chart No.1), this

Why the big gear on pipe threading machine wear out fast? The reason why the big gear component near the front chuck connected with hollow main shaft worn out fast is that wrong material of the gear used. Normally we use ductile iron as the material of the big gear of pipe threading machine. However, according to our test, ductile iron big gear work well with automatic self-open die head pipe threader, but not manual die head. If your pipe threading machine are equipped with a manual quick-open die head, it is highly recommended to adopt forging iron as material to produce the big front gear of your electric pipe threading machine.

How to fix the pipe grooving machine hydraulic pump if the cylinder do not work? Due to the design of ecnomic type model STGS325C pipe roll grooving machine, the hydraulic pump head sometimes do not work well. If when you press the handle of pipe grooving machine, but the upper wheel do not go down as usual. Please try to clean the hydraulic pump or knock on the handle. Loosen the nut and take off the release knob. Swing the handle to let some oil come out from the roll groover head cylinder. So that the tiny scrap on the top of the oil cylinder may come out from the pump. In the meantime, the metal ball also come out from the cylinder. No need to add hydraulic oil if only a few oil gone. If you need add oil, please add from this finger pointed place. Install back the release valve knob. Before put the knob back please rotate the nut to this position as in picture. After long time using, the oil inside cylinder becomes thick, which makes the steel ball can not fall down, we need manually knock it down. We need to press the handle and

Roll grooving machine for stainless steel pipe and aluminum pipe Roll grooving machine for stainless steel pipe and aluminum pipe groove rolling The regular pipe grooving machine do not work well for ss pipe, thus we developed special knurl wheel and the pinch roller for it. For 12 inch SCH40 stainless steel pipe, the standard roller will be enough, actually the standard roller works for all stainless steel pipe with wall thickness not less than SCH20. But for SCH5 and SCH10 thin wall stainless steel tube our special roller is required. Aluminum pipe grooving and embossed groove is also available. https://youtu.be/C7QDgeQGfqU?si=uJcI6JKGjIKeUTI9

DIFFERENCE OF DN OD NPS NB – OUTER DIAMETER AND NOMINAL DIAMETER OF PIPEDN means the nominal diameter of pipe, that is the average of outer diameter and inner diameter. OD means the outside diameter of pipe. For instance, DN50 pipe means 2″ and the outside diameter is 60.33mm. PIPE SIZE INFORMATION LISTPipe Size，North America call it NPS，expressed in inch sizes. Europe call it DN，expressed in Metric sizes.OD means Outside Diameter， SCH means different size pipe’s wall thickness. (You will find different size pipes under same SCH, the wall thickness is different.)

Metric and UNC threading dies for bolt threading machine On-site pipe threading machine is also working for the bolt threading (not suitable for mass production), we have metric dies M8~M45 for our bolt threading machine. Besides, there is also another type of bolt threads called UNC. UNC is like the American type metric thread, we also produce UNC dies that are interchangeable with RIDGID. Since we have threading machine that are compatible with RIDGID 811a and 815a die head, so you can also buy our machine and die head to use with RIDGID UNC dies. Picture shows RIDGID UNC, UNF, BSW dies can be put on 811A & 815A die head.

Difference between universal motor and induction motor pipe threading machine Universal motor is a DC type motor, the armature connects to the outer DC power, while induction motor is AC type motor which contains rotor and stator. Universal motor are commonly used in low speed and high torque application such as heavy machinery and concrete mixer, while the induction motor are for application of high speed constant power output such as fan and centrifugal pump. Both induction motor and universal motor are widely used in on-site pipe threading machine and hand-held pipe threader. INDUCTION MOTORThe output power of induction motor on threading machine is stable and the life span seems longer, 80% made in China pipe threader are equipped with induction motor. The induction motor structure is simple it connects directly to the input power no need speed regulator. But this motor is not suitable for high speed work. UNIVERSAL MOTORThe advantage of universal motor when it is on a pipe threading machine will be wide range of speed, high precision of torque. The start torque is big, it shows more power when you are doing thread on a hard pipe. What’s more, the size of universal motor is smaller

Different quality of threading dies for pipe threader By improving the craft of manufacturing dies, you can have better dies and higher quality thread. The life span of various material threading dies are different too. 1) The first one is the most frequently used cheap alloy dies, material is 9Cr2. 2) The second is forged alloy die made of material 9CrSi, it has better performance and good price. 3) The third one is regular high speed steel (HSS) dies, with this die you can have better finish on the threading teeth, in the meantime it also work for small quantity of stainless steel pipe threading. 4) HSS dies with milling teeth. After heat treatment there is one more process of teeth fine milling, the teeth shape is that front teeth are low while rear teeth are high which is contrary to the normal dies. What’s more, the milling HSS threading dies are interchangeable with RIDGID pipe threader. Previous Next