Full threaded steel self drilling rock bolt / Hollow anchor bar / Anchor rods
The Self Drilling Anchor system is comprised of a hollow threaded anchor bar with a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation. Widely used as an efficient anchoring means, in tunnel pre-support, slope, coast, mine, water conservancy projects, building foundation, roadbed reinforcement and geological diseases treatment such as landslip, crack, sink age. It`s irreplaceable in narrow construction environment. Hollow anchor bar is made of seamless tube with high strength.
Advantages and Characteristics as below:
1. No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes.
2. Fast drilling and installation, because drilling, installation and grouting are in a single operation.
3. Both rope threads and trapezoid threads are robust and ideal for rotary-percussive drilling and ensuring a high level of bondwith the borehole gout.
4. The hollow core not only serves for flushing during drilling, but also for grouting after drilling.
5. Continuous threads ensure the bars can be cut and coupled at any point, or extended.
6. Different anchor bits are available for different ground conditions.
Hollow Anchor Rod,Grouting Anchor Rod,Hollow Anchor Bar,Hollow Anchor Bolt Shandong Guanzhou Iron and Steel Group Co., Ltd. , https://www.guanzhouiron.com
Product name:Â Economic extension chrome fitting stock
Description:Â Â
Material
Brass Body, Brass Bonnet, Steel Iron ball, steel handle, PTFE ball Seat, NBR O-RingÂ
Brass can be CuZn39Pb3, CZ121, C37710, CW614N, CW617N, DZR, etc
Surface
Natural brass or Nickel platedÂ
Size
1/2"-4"
Testing Pressure
100% tested with 0.6MPa - 0.8MPa by air.
Thread
BSP & NPT for selectingÂ
Samples Time
1) 2 days - For our existing samples for reference
2) 15 days - If new size, need make the new mould
OEM Acceptable
 Yes
Production CapacityÂ
100,000 pcs each month
Packing DetailsÂ
Poly bag, inner box, out carton and pallet.Â
Payment Term
T/TÂ ,L/C,,D/P,D/A,PAYPAL,WESTERNÂ UNION
Delivery Time
20 days to 40 days after confirming the order
Minimum Order QuantityÂ
300-2000 Pieces
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Inspection:Â Each cargo will be inspected before shipping. The third-party inspection company is acceptable. Like SGS, ASIA inspection, etc.
Packaging Details:Â Standard export packing or as per customer's requirements.Â
Inner box, outer carton and pallet  .
Ningbo Bestway Valves Limited is specialize in manufacturing brass & bronze valves and fittings, including ball valves, angle valves, gate valve, check valves, bibcock, tap, fitting, water meter parts and so on.Â
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We always insisting on the principle of "Competitive price, superior quality, prompt delivery and excellent service makes all customers satisfied".
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Welcome to visit our company and do business with us. We sincerely wish to establish long standing cooperation with you. Any of your inquiries will get our close attention.
Economic Extension Chrome Fitting Stock (BW-602)
Model NO.: BW-602
Thread: Bsp & NPT for Selecting
Surface: Natural Brass or Nickel Plated
Testing Pressure: 100% Tested with 0.6MPa - 0.8MPa by Air.
OEM Acceptable: Yes
Trademark: Bestway
Specification: 1/2"-4"
Origin: China
HS Code: 8481804090