SN represents "Store Norfors".↑✘£ The name originates fromγ•εα their first application in St♣ Ω∑ore Norfors in Sweden. An alterγ‍native etymology attributes SN to &q₽♣uot;soil & Nail".

People call rock bolt asσ✘ SN-Bolt, SN Rock Bolt, SN Anchorβ∞, which is used for mining, tunnel₽♣ ♣ing and specialized civil enginee∑♦±ring. The whole set of SN bolt consist≠'←±s of a thread bar, s plate,¥☆"≠ a spherical washer δ"γ☆; and a nut.

There are three major ways of   ​×anchoring the rock bolts: mechan'>✘ical, grouted, and frict♥>ion. The most common grout-an" ÷‌chored rock bolt is the f↑↔×ully grouted rebar, a t÷✘hreaded bar made of steel. Cement or re‌★★sin is used as the gro π§uting agent. A cable bolt is a reinfσ$orcing element made ₩​✘<of steel wires in the form↕σλ​ of a strand or rope; it is ∞π​installed in the borehole with  '₽♣cement grout.

Super high duty, ultr©≠ 'a high strength heat treatment r÷"ock bolt/ anchor bolt/ roof supp"♠§±ort system is an advanced steelλ÷ products with prime qα<αuality and high perf '→ ormance, which can ensure the an  ♣☆choring effect for complex ground co→•≈nditions, such as sand and gravel t&↕γo inconsistent fill, bould≈→λers, rubble and weathered rock. '₽ Raw materials are hot •₩  rolled steel rebars or deformed bar♥&Ωγs, using inductive heatγ✔¶ treating technology （ourΩ¥< patent）. This produ∑πct is widely used in tunneling,×♦ mining, slope stabilizatioεγn and foundation support.

Our high duty high st±λrength rock anchor bolt p≤<↔✘roduct have higher strength gra♥✘de than normal hot-rolled rebars( for  ×∞example, grade MG500,600,700,785,830 ε♥Mpa). This advantage of our prod→φ₩uct can decrease deformation of rocks, β♥±control or limit the breakage are↕β≈€a in surrounding rock. It's good anti-♦¥₹♥impact property can resist sud®≤≥den impact pressure, wh ✔λ‌ich can ensure the secur ↔®™ity of mining operat•→ion.

MECHENICAL PROPERTIES&nbγ↕sp;            '₽;         &>&βnbsp;         &nb÷<δsp;        ₹÷★‌         &nbsα♠$ p;       &nb‍★‍πsp;       &nbs∑Ωβp;          •¶↓        ←∑;      ‍×σε           ×Ω€      &₩‍nbsp;      σ←↓♥        α§         &β§&₽nbsp;       &γ"≈nbsp;    

GENERAL DIMENSION   &Ω↕‍↑nbsp;         §☆>π        &nbγ₹sp;      ε∞‍       &nbs£∏®₽p;       ♣<£♥        &n&→ ∞bsp;         &δ↔₽nbsp;      ©       ←≈δ        &nb♠€αsp;        ¶✘•;           φ>÷γ          σ<      &n↑≈¥bsp;       &nbs$φ&¥p;        δ ​      ≠<       &nbs✔≠p;      

PRODUCTION PROCESS      &nb®£sp;       &nbγ<✘"sp;     &nδ×bsp;          ♣₽™'       ££;          ¶         ®↔≈            ¥        ♥π↕€        &nb$≈sp;       &nbδ☆→↕sp;     &n♦∏★∏bsp;         &nb→☆×sp;        →→      &n&‌≤₽bsp;          ★          &&←¥γnbsp;         &nbα÷sp;   

 1. 600MPa ~ 700MPa

Raw material --- Heat Trea♠≤ tment --- Mechanical Property Test €≤'✔--- Sawing/Cutting --- Reduce diametΩ☆$er --- Screw thread ---"♣€ Test --- Packaging --- Stock in

2. 335MPa ~ 500MPa

Raw Material --- Redu&∑αce diameter --- Screw threa≥§​d --- Test --- Packaging --- S≤£&tock in

APPLICATION          &nbsεΩ p;           &σ∑♥nbsp;     &₩€€nbsp;         &" • nbsp;          ≥β;         ​₩          &nbs₽®p;          ←♥ ;       &n'✔bsp;         &nb÷γΩsp;      ε≤;           &nε♠bsp;           ™↓           ±←          &‌∏★nbsp;         ←맮       ≠';          

• Coal mining
• Hard rock mining
• Civil construction
• General construction
• Geotechnical and Shoreline
• Bridges
• Dams
• Infrastructure
• Tunnels

SAFETY CERTIFICATE OF  φ±APPROVAL FOR MINING PRODπ±‍‍UCTS              &nb✔↔sp;         ✘§§♥          &π¶nbsp;        ♣β;        >≈•;           &✘☆nbsp;        

MODEL/TYPE : MSGLW-335/16,18,2≥↕0,22,25

        &nbs∏♣↑p;       &nb↑>®sp;        ∞σ>      MSGLW-400/16,18,2♦♥₩0,22,25

          &nb✔←sp;        δ¶         &nbβ​≠sp;  MSGLW-500/16,18,20,22,25

      &n≥≥≈bsp;         ✔↑         Ω✔      MSGLW-6©>∞‌00/16,18,20,22,25

         β£      φ÷        φ ';     &nbs≠✘÷÷p;  MSGLW-700/16,18,20,22,25

More information for our cert≈¶ificates, please contact infor‌$÷∞@aqjiuxing.net. Thank you!