Introduction of Tapered drill rod
Tapered drill rod is a further development of the integral drill rods. It usually has a forged collar to maintain the proper shank striking face position in the rock drill. Tapered drill rods effective lengths are measured from the collar to the bit end,which are usually from 0.6 meters to 3.6 meters.
Effective lengths: 400mm ~ 8000mm;
Taper degrees: 4°46’, 6°, 7°, 11°, 12°;
Shank sizes: Hex.19mm,Hex. 22mm, Hex.25mm;
Other lengths are available upon request.
Specification of taper drill steel H22
|Product name||Taper drill rods H22|
|Material||High quality carbide and 55SiMnMo steel|
|Usage||Rock drilling, coal mining and geological drilling|
|Taper degree||4, 7, 11, 12 degree|
|Delivery||1-5 days for sample, batch products depend on order quantity|
|Packaging||Bundled with steel wire, 5 pieces are bundled together or as client's requirement|
|Shipping||Samples are shipped by express, batch products are shipped by sea or by air|
1. Q: Are you trading company or manufacturer?
A: We are original equipment manufacturer.
2. Q: How long is your delivery time?
A: It is according to the model and quantity.
Generally it is 3-5 days if the machines are in stock.
It will be 15-30 days if you want to customize the machines.
3. Q: Do you provide samples? Is it free or extra?
A: Yes, we could offer you the sample machine.
But it's not free. You need to pay for the sample and the cost of freight.
4. Q: What is your terms of payment?
A: We accept T/T, Western Union, Money Gram, Paypal, Alibaba Escrow etc.
Payment<=USD 5000, 100% in advance.
Payment>=USD 5000, 30% T/T in advance, balance before shipment