R38 R51 T76 Mine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor Bolt

• Customization: Available
• After-sales Service: Can Exchange Goods
• Warranty: 2 Year
• Model NO.: R38 R51 T76
• Certification: ISO 9001
• Standard: AISI, ASME, BS, ANSI, JIS, GB, GOST, ASTM, DIN
• Surface Treatment: Without Processing
• Manufacturing Process: Hot Rolled
• Material: Carbon Steel
• Terms of Payment: 30%T/T Advance + 70% Balance
• Trade Terms: EXW Fob CFR CIF
• Place of Origin: China
• Length: Custom Length
• Diameter: Custom Diameter
• Materials: High Strength
• Surface: Antirust Coating or Zinc Plating
• Way to Install: According to Actual Engineering
• Installation Method: Pre-Stressed Anchor,Traction Bolt,Grouted Rock Bol
• Marking and Numbering: Custom
• Transport Package: Standard Seaworthy Packing
• Specification: 1/8′′-24′′ SCH40 SCH80 STD or customization
• Trademark: Shan Shui Special Steel
• Origin: Liaocheng Shandong
• HS Code: 7308
• Production Capacity: 300000tons/Year

Product Description

 

High Quality China Self Drilling Anchor Tool R25 R32 R38 T40 T52 T73 T76 T103 Hollow Rock Bolt Mine Rock

R-Thread Anchor Rod Technial Data

	R25N	R32N	R32S	R38N	R51L	R51N	T76N	T76S
Outside diameter (mm)	25	32	32	38	51	51	76	76
Internal diameter (mm)	14	19	16	19	36	33	52	45
Ultimate load capacity (KN)	200	280	360	500	550	800	1600	1900
Yield load capacity (KN)	150	230	280	400	450	630	1200	1500
Tensile strength, Rp0.2 (N/mm2)	800	800	800	800	800	800	800	800
Yield strength, Rp0.2 (N/mm2)	650	650	650	650	650	650	650	650
Weight (Kg/m)	2.3	3.2	3.6	5.5	6.5	8.0	16.0	19.7
Thread type (left-hand)	ISO 10208				ISO 1720		MAI T76 Standard
Steel grade	En10083-1 (Alloy structure steel)
	Compared to carbon steel, alloy structure steel has high anti-corrosion capacity and high mechanical.

R thread anchor bar or called rock rod, soil nail, which is a kind of threaded hollow bar, bar surface with an rope thread according to ISO 10208 & 1720. It was firstly invented by MAI on 1960S to solve the low construction speed on complicated underground works, nowadays; it is very popular all around the world.
Thread size: R25, R32, R38, R51, T76.
Thread standard: ISO10208, ISO1720 etc.

T-Thread Anchor Rod Technial Data

Bar Type	Outside Diameter (mm)	Inside Diameter (mm)	Cross section (mm2)	Ultimate Load KN	Yield Point KN	Weight (kg/m)	Thread Left/ Right Hand
30/11	30	11	446	320	260	3.3	Lift or right
30/14	30	14	395	260	220	2.9	Lift or right
30/16	30	16	382	220	180	2.7	Lift or right
40/16	40	16	879	660	525	7.0	Lift or right
40/20	40	20	726	539	430	5.6	Lift or right
52/26	52	26	1337	929	730	10.0	Lift or right
73/53	73	53	1160	1630	970	12.3	Lift or right
73/56	73	56	1094	1414	785	11.1	Lift or right
73/45	73	45	2265	1630	1180	17.8	Lift or right

T thread anchor bar surface with a trapezoidal thread, this design of connection is much stronger and reliable when compared with rope thread, we supply full sizes from T30 to T103.
Thread size: T30, T40, T52, T73, T103, T127, T130.
Thread standard: ISO10208, ISO1720 etc.