MIRCALE Taper Drill Rods
The tapered drill rod needs to be matched with the taper drill bit for rock drilling, and It is usually used in rock drilling operations in quarries, coal mines, roadbeds, construction and other fields. Conventional taper angles for tapered drill rods are 7°, 11°and 12°.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 rod effective lengths are measured from the collar to the bit end, which are usually from 0.6meter to 3.6 meters.
Parameters
• Shank sizes: Hex.19mm, Hex. 22mm, Hex.25mm
• Taper degrees: 4°46’, 6°, 7°, 11°, 12°.
• Length: 400 - 8000mm.
Features
• Carburizing process is applied to promote surface hardness, thus grant better wearing quality and lifespan for the drill rods;
• 23CrNi3Mo, which is in same league as Sandvik Sandbar 64, is applied as drill rod material.
• Cost-effective, good performance with reasonable price.
• Complete types of drill rod for various drilling scenarios.
Applications
Drilling duties in tunneling, construction, mining, quarrying, etc.
| |||
Taper Degree | Short/Long | Taper End | |
 | 4°46’ | Short Skirt | 19.1mm |
7° | Short Skirt | 16.0mm | |
11° | Short Skirt | 18.0mm | |
12° | Short Skirt | 16.8mm | |
12° | Long Skirt | 14.9mm | |
7°
| Length | Diameter | Weight | Model No. | |||
| [mm] | [ft-in] | [mm] | [in] | [kg] | ||
Shank H22×108mm, Hex 22, 7° | 1800 | 5' 91" | 22 | 7/8" | 5.8 | H22-T7-1800 |
| 2400 | 7' 10" | 22 | 7/8" | 7.6 | H22-T7-2400 | |
Shank H25×108mm, Hex 25, 7° | 1800 | 5' 91" | 25 | 1" | 8.2 | H25-T7-1800 |
| 2400 | 7' 10" | 25 | 1" | 6.4 | H25-T7-2440 | |
11°
| Length | Diameter | Weight | Model No. | |||
| [mm] | [ft-in] | [mm] | [in] | [kg] | ||
Shank 22×108, Hex 22, 11° | 1220 | 4' | 22 | 7/8" | 4.1 | H22-T11-1220 |
| 1830 | 6' | 22 | 7/8" | 5.9 | H22-T11-1830 | |
12°
| Length | Diameter | Weight | Model No. | |||
| [mm] | [ft-in] | [mm] | [in] | [kg] | ||
Shank 22×108, Hex 22, 12° | 610 | 2' | 22 | 7/8" | 2.2 | H22-T12-610 |
| 1220 | 4' | 22 | 7/8" | 4.1 | H22-T12-1220 | |
| 1830 | 6' | 22 | 7/8" | 6.0 | H22-T12-1830 | |
| 2440 | 8' | 22 | 7/8" | 7.8 | H22-T12-2400 | |
Our advantage:
1. Enterprise group combines manufacture and international trade;
2. Strict quality controll system with perfect equipment;
3. High technology enterprise with advanced production equipments;
4. Prompt delivery and all-around after-sales service;
FAQ
A: Are you trading company or manufacturer ?
Q: We are manufacturer.
A: Do you provide samples ?
Q: Yes, of course. We welcome sample order to test and check quality.
A: Can you accept small orders?
Q: We enjoy to cooperate with all clients whatever big or small order.
A: Could you accept OEM & ODM?
Q: Of course, as a manufacturer, OEM & ODM is available, our professional R&D center can help you on the project.
A: How long is your delivery time?
Q: Usually it's about 20 days,depends on your actual quantity.
Any question, pls feel free to contact . Thanks!