Mine Tunnel Roof Support Self Drilling Rock Hollow Grouting Anchor Bolt

• Standard: BS
• Length: 3-6m
• Usage: Oil Mining, Coal Mining, Well Drilling, Ore Mining
• Material: Carbon Steel
• MOQ: 5 Tons
• Payment Term: Tt or LC
• Model NO.: R25 R32 R38 R51
• Tolerance: +-1%
• Lodaing Port: Tianjin
• Type: R32L/R32n/R32s
• Delivery: 5-15 Days
• Stock: Enough Stock
• Package: Standard Sea Package
• Transport Package: Carton Box/Plywood
• Specification: R32L R32N R32S
• Trademark: Shanshui
• Origin: Liaocheng Shandong
• HS Code: 7304592000
• Production Capacity: 10000tons Per Month

Product Description

 

Product Description

R51 Self Drilling Anchor Bolt Grouting Anchor Hollow Rod for tunnel

Model NO.	R51 Self Drilling anchor hollow bar	Trade Terms	EXW FOB CFR CIF
Thread Type	R Thread	Transport Package	Standard Seaworthy Packing
Ultimate Load(Kn)	800	Length(M)	1-9
Yield Load(Kn)	630	Production Capacity	300000tons/Year
Specification	R51	Terms of Payment	30%T/T Advance + 70% Balance
Origin	China	Application	Construction/Underpinning/Slope Stabilization

R51 Self Drilling Anchor Bolt Grouting Anchor Hollow Rod for tunnel

 

Size	O.D(mm)	I.D(mm)	Ultimate Load(KN)	Yield Load(KN)	Weight(kg/M)
R25N-14	25.0	14.0	200	150	2.3
R32L-22	32.0	22.0	210	160	2.8
R32N-21	32.0	21.0	280	230	2.9
R32N-18.5	32.0	18.5	280	230	3.4
R32S-17.5	32.0	17.5	360	280	3.5
R32S-15	32.0	15	360	280	4.1
R38N-21	38.0	21.0	500	400	4.8
R38N-19	38.0	19.0	500	400	5.5
R51L-38	51.0	38.0	550	450	6.0
R51L-36	51.0	36.0	550	450	7.6
R51N-36	51.0	36.0	800	630	7.6
R51N-33	51.0	33.0	800	630	8.4
Steel grade		Acc. to EN10083-1
Thread direction		Left hand
Thread standard		ISO 10208 / ISO1720

 

With continuous R or T thread, the bar can be connected by the coupling.
Features:
1) It is made of high-strength steel by rolling, and the material conforms to GB/T 3077 "alloy structural steel";
2) The R-type hollow bar is produced with a left-handed wave thread, which uses a large pitch standard thread. The thread shape conforms to ISO 10208 "rock drilling tool - left-handed wave thread" and ISO 1720 standard, and can be combined with a corresponding nut, coupling. , drill bit, adapter, etc.
3) The T-type hollow bar is produced with a left-handed large pitch trapezoidal thread, and it can be assembled with nut ,coupling, drill bit, adapter, etc.
4) Surface treatment requirements such as galvanizing, epoxy and double anti-corrosion can be selected according to the conditions of use;
5) The length is usually 3m, 4m, 6m;
6) If the customer has special requirements for the diameter, length, thread or surface treatment of the rod, it can also be customized.
Applications:
It can be used as a drill pipe when drilling, and can be used as a grouting pipe during grouting. It can be used as a reinforcing rib after installation.
Advantage
1) High strength and quality material is selected, the hollow bar has high strength and plasticity;
2) The hollow structure is used to make it more resistant to bending and shearing than solid bar of the same cross-sectional area;
3) The inner hole of the hollow bar can be used as a grouting passage;
4) The bar is processed by rolling to process the continuous thread, which can be used for any cutting or be connected by coupling for a longer length, and can be used in a small space.
5) The full-length continuous thread can have better adhesion to the cement layer, it can be used as strong support  for tunnels and rock slopes.
 

Shandong Shanshui Special SteeI Group Co., Ltd . is a company specializing in seamless steel pipes, precision steel pipes, alloy steel pipes, boiler steel pipes, cold drawn steel pipes, spiral steel pipes, longitudinally welded pipes, seamless square pipes, welded square pipes, all raw materials All come from first class steel mills at home and abroad to ensure stable performance and quality of finished products.

Shandong Shanshui Special Steel Co., Ltd. was established in 2014 and has a standing inventory of more than 20,000 tons. We focus on the production and sales of steel pipe products, as we have been engaged in domestic market and foreign market for more than ten years and have rich experience in sales and inventory. Our company has established modern large-scale outdoor warehouses and indoor warehouses. We have products of different specifications in stock, and can customize products of different specifications according to your requirements.
 

 

FAQ

1.Q: Are you a manufacturer?
A: Yes , we are a manufacturer, not agent. We have own factory, which is located in SHANDON,CHINA. We have a leading power in producing and exporting carbon steel pipe etc. We promise that we are what you are looking for.Welcome to contact us.
 
2. Q: How about your price?
Although we are brand-name products, but our prices are very favorable and competitive.
Customer from all over the world to purchase our products, because our best price.
 
3.Q: Can we visit your factory?
A: Warmly welcome. Once we have your schedule, we will arrange the professional sales team to follow up your case.
 
4.Q:Are your shipment and transportation in time?
A: Spot delivery can be arranged immediately.The fastest delivery time can be communicated according to your order details.