Rock Drilling Tools Taper Drill Rod for Drilling Rocks

Model NO.: L=2400mm, degree=7° Length: 2.4m Material: High Manganese Steel Precision: Normal Precision Automatic Grade: Manual Layout: Vertical Loading Port: Xiamen Application: Mining and Quarrying Specification: CE HS Code: 72288000 Certification: SGS Usage: Coal Mining Controlling Mode: Artificial Hole Diameter: <50mm Structure: Deep Hole Drilling MOQ: 50PCS Brand: Bestlink Trademark: BESTLINK Origin: Xiamen Different rock formations and rock drills require different taper angles. When drilling with high impact hydraulic rock drills in medium-hard to hard and abrasive rock formations, a wide taper angle is normally used. Taper angles of 11 and 12-degrees are normally used on modern drill rigs. For low impact rock drills and softer rock formations, a narrow taper angle of seven degrees is used. A 7-degree angle can also be used if bit spinning is a problem when using 11 and 12-degree equipment. In addition, a 4, 46 degree angle is ideal for soft rock when you're using pneumatic or hydraulic drill rigs - to prevent bits from spinning or becoming detached.

Part number Taper Angle Shank Length Weight
Mm mm kg
BT220600-66° (7° 11° 12° ) Hex 22 x 108 600 2.2
BT220800-66° (7° 11° 12° ) Hex 22 x 108 800 2.8
BT221000-66° (7° 11° 12° ) Hex 22 x 108 1000 3.4
BT221200-66° (7° 11° 12° ) Hex 22 x 108 1200 4
BT221400-66° (7° 11° 12° ) Hex 22 x 108 1400 4.5
BT221600-66° (7° 11° 12° ) Hex 22 x 108 1600 5.1
BT221800-66° (7° 11° 12° ) Hex 22 x 108 1800 5.7
BT222000-66° (7° 11° 12° ) Hex 22 x 108 2000 6.5
BT222200-66° (7° 11° 12° ) Hex 22 x 108 2200 7.2
BT222400-66° (7° 11° 12° ) Hex 22 x 108 2400 7.8
BT222600-66° (7° 11° 12° ) Hex 22 x 108 2600 8.3
BT222800-66° (7° 11° 12° ) Hex 22 x 108 2800 8.9
BT223000-66° (7° 11° 12° ) Hex 22 x 108 3000 9.5
BT223600-66° (7° 11° 12° ) Hex 22 x 108 3600 11.2
BT224000-66° (7° 11° 12° ) Hex 22 x 108 4000 12.7
BT224800-66° (7° 11° 12° ) Hex 22 x 108 4800 15.2
BT225600-66° (7° 11° 12° ) Hex 22 x 108 5600 18.4
BT226400-66° (7° 11° 12° ) Hex 22 x 108 6400 20
BT227200-66° (7° 11° 12° ) Hex 22 x 108 7200 22
BT228000-66° (7° 11° 12° ) Hex 22 x 108 8000 24.5

22mm 7 / 8 " hex rod. 108mm 4 1 / 4 " shank.
4°46' taper
Length (mm)	Part No.	Weight (kg)
800	578-0108,11	2.9
1600	578-0116,11	5.4
2000	578-0120,11	6.6
2200	578-0122,11	7.1
2400	578-0124,11	7.8
3200	578-0132,11	10.2
3500	578-0135,11	11.1
4000	578-0140,11	12.7
7° taper
Length (mm)	Part No.	Weight (kg)
400	573-0104,11	1.7
800	573-0108,11	2.9
1830	573-0118,11	6
2000	573-0120,11	6.5
2435	573-0124,11	7.8
3050	573-0131,11	9.9
3200	573-0132,11	10.1
4000	573-0140,11	12.7
11° taper
Length (mm)	Part No.	Weight (kg)
610	579-0106,11	2.4
1220	579-0112,11	4.2
1525	579-0115,11	5
1830	579-0118,11	6.1
2000	579-0120,11	6.6
2435	579-0124,11	7.9
2600	579-0126,11	8.4
3200	579-0132,11	10.3
3655	579-0137,11	11.7
4000	579-0140,11	12.8
4800	579-0148,11	15.1
5600	579-0156,11	17.5
6400	579-0164,11	20
7200	579-0172,11	22.4
8000	579-0180,11	24.9
12° taper
Length (mm)	Part No.	Weight (kg)
1220	577-0106,11	2.3
1525	577-0112,11	4.2
1830	577-0115,11	5.1
2000	577-0118,11	6.1
2435	577-0120,11	6.6
3050	577-0124,11	7.9
3200	577-0131,11	9.8
3655	577-0132,11	10.2
3965	577-0137,11	11.7
4800	577-0140,11	12.8
5600	577-0148,11	15.2
6400	577-0156,11	18.4
7200	577-0164,11	20
8000	577-0172,11	22
	577-0180,11	24.8

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Product Categories : Small Hole Drilling Tools > Taper Rod