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Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts

Good quality Small Rock Drill Bits for sales
Good quality Small Rock Drill Bits for sales
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Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts

China Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts supplier
Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts supplier Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts supplier

Large Image :  Hollow R38N /21 Roof Self Drilling Rock Anchor For Soil Nailing Rock Bolts

Product Details:

Place of Origin: China
Brand Name: OED/OEM
Certification: ISO 9001 2008
Model Number: R38N/21

Payment & Shipping Terms:

Minimum Order Quantity: 10pcs
Price: Negotiable
Packaging Details: Wooden Box
Delivery Time: 15 days
Payment Terms: L/C, , T/T
Supply Ability: 10000pcs per month
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Detailed Product Description
Model Number:: R38N/21 Capacity: 210, 280, 360KN
Application: Tunnel Roof Support Yield Load: 280 Kn
Material: 40Cr Elongation: 10%
Length: 2m,3m,4m,5m,6m...9m Diameter: 38mm

Hollow Anchor R38N/21 Roof Self Drilling Rock Anchors for Soil Nailing Rock Bolts

 

Features:

Outer Diameter:38mm

Inner Diameter:21mm

Utimate Load:500KN 

Yield load:400KN

Weight:4.8kg/meter

 

Application Area:
Water well-drilling
Quarry
Foundation piling
Geothermal drilling
Soil nailing
Tunnel support
Jet grouting
Micropile
Mining

 

Advantages and Characteristics:

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 bond with the borehole gout.

4.The hollow core not only serves for flushing during drilling, but also for grouting after drilling. R32 mining roof support bar.

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.

7.Duplex anti-crossion prosess ,hot-dip galvanized and epoxy coating system.

 

Hollow anchor bar technical data:

Size O.D(mm) I.D(mm) Ultimate Load(KN) Yield Load(KN) Weight(kg/meter)
R25N-14 25.0 14.0 200 150 2.3
R32L-22 32.0 22.0 220 180 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
T76N-49 76.0 49.0 1600 1200 16.5
T76S-45 76.0 45.0 1900 1500 19
T30-11 30.0 11.0 320 260 3.3
T30-14 30.0 14.0 275 220 2.9
T40-16 40.0 16.0 660 525 7.1
T40-20 40.0 20.0 540 425 5.6
T52-26 52.0 26.0 930 730 10
T73-56 73.0 56.0 1035 830 10.8
T73-53 73.0 53.0 1160 970 14
T73-45 73.0 45.0 1600 1270 17.5
T103-78 103.0 78.0 2270 1800 25
T103-51 103.0 51.0 3660 2670 44
Steel grade Acc. to EN10083-1 / EN10210-1
Thread direction Left hand / Right hand
Thread standard ISO 10208 / ISO1720 / Other international standards

 

Contact Details
HUNAN GOLDEN GLOBE I AND E OED CO.,LTD.

Contact Person: admin

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