pretec rock bolts factory

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  • Corporate – Pretec Group - Pretec Group – Rock support

    Pretec China (Zhejiang Pretec Metal Products Co Ltd) moved to new factory, 10 000m2. Mechanical production of rock bolts and powder coating. Pretec started to work in the tunnel industry with rock bolts and products for water and frost proofing.

    Get Price
  • Pretec Group – Rock support – combination bolts with

    Combination bolts are effective for immediate work protection at the face after torque tensioning, and when later fully grouted, can be classified as permanent support. Workers are installing rock bolts in the face area while grouting of the bolts takes place at a convenient time and distance behind the face (typically about 50m).

    Get Price
  • China Rock Bolt manufacturer, Hollow Grouting Anchor

    2016-3-30u2002·u2002Pretec China was established in June 2010. We sell products for construction and infrastructure industry. Pretec China is the production factory of Pretec Group. Pretec Group operates in Finland, Norway, Sweden, Finland and Danmark. We specialize in: Rock …

    Get Price
  • Zhejiang Pretec Metal Produtcs Co Ltd.

    Zhejiang Pretec Metal Products Co., Ltd. Was Established In 2008 And Officially Put Into Production In June 2010. Company was originally located in No. 1-1 Danmei Road, Economic and Technological Development Zone, Haining City, covering an area of 20 mu.

    Get Price
  • Certificates – Pretec Group - Pretec Group – Rock support

    Certificates for Pretec China. Zhejiang Pretec Metal Co Ltd. Producer of bolts and acessories for rock support. To secure long service life for the products the factory offers PC-Coat TM. (hot dip galvanizing, zinc manganese phosphating and epoxy powder coating). Click for larger version.

    Get Price
  • NC-Bolt - Pretec Group – Rock support

    2020-12-8u2002·u2002conditions, except when very high rock stresses may produce large radial deformations or strain bursting. We produce two types of combination bolts - NC-Bolt (rebar bolt) and Pc-Bolt™(tube bolt). Product data sheets and brochures for both bolt types can be downloaded from www.pretec.no Factory in Haining, Zhejiang, China. Total area: 22000 m2.

    Get Price
  • Pc-Bolt™ - Pretec Group – Rock support

    2020-12-8u2002·u2002Combination bolt for rock support (tube bolt) Option: Pc-Packer. Combination bolt ... be downloaded from www.pretec.no Factory in Haining, Zhejiang, China. Pc-Bolt™ packed on pallet. ... Expansion shell is mounted on the bolt from factory and is a part of the bolt.

    Get Price
  • NC-Bolt - Pretec AS

    2019-9-5u2002·u2002conditions, except when very high rock stresses may produce large radial deformations or strain bursting. We produce two types of combination bolts - NC-Bolt (rebar bolt) and Pc-Bolt™(tube bolt). Product data sheets and brochures for both bolt types can be downloaded from www.pretec.no. Factory in Haining, Zhejiang, China NC-Bolts packed on ...

    Get Price
  • Company Profiles_About__Zhejiang Pretec Metal Produtcs

    Zhejiang Pretec Metal Products Co., Ltd. was established in 2008 and officially put into production in June 2010. The company was originally located at No. 1-1 Danmei Road, Haining Economic and Technological Development Zone, covering an area of 20 acres; with the development of the company, in August 2016, it moved to the new factory area at No. 9 Jinchang Road.

    Get Price
  • Corporate – Pretec Group - Pretec Group – Rock support

    Pretec China (Zhejiang Pretec Metal Products Co Ltd) moved to new factory, 10 000m2. Mechanical production of rock bolts and powder coating. Pretec started to work in the tunnel industry with rock bolts and products for water and frost proofing.

    Get Price
  • Pretec Group – Rock support – combination bolts with

    Combination bolts are effective for immediate work protection at the face after torque tensioning, and when later fully grouted, can be classified as permanent support. Workers are installing rock bolts in the face area while grouting of the bolts takes place at a convenient time and distance behind the face (typically about 50m).

    Get Price
  • China Rock Bolt manufacturer, Hollow Grouting Anchor

    2016-3-30u2002·u2002Pretec China was established in June 2010. We sell products for construction and infrastructure industry. Pretec China is the production factory of Pretec Group. Pretec Group operates in Finland, Norway, Sweden, Finland and Danmark. We specialize in: Rock …

    Get Price
  • Zhejiang Pretec Metal Produtcs Co Ltd.

    Zhejiang Pretec Metal Products Co., Ltd. Was Established In 2008 And Officially Put Into Production In June 2010. Company was originally located in No. 1-1 Danmei Road, Economic and Technological Development Zone, Haining City, covering an area of 20 mu.

    Get Price
  • Certificates – Pretec Group - Pretec Group – Rock support

    Certificates for Pretec China. Zhejiang Pretec Metal Co Ltd. Producer of bolts and acessories for rock support. To secure long service life for the products the factory offers PC-Coat TM. (hot dip galvanizing, zinc manganese phosphating and epoxy powder coating). Click for larger version.

    Get Price
  • NC-Bolt - Pretec Group – Rock support

    2020-12-8u2002·u2002conditions, except when very high rock stresses may produce large radial deformations or strain bursting. We produce two types of combination bolts - NC-Bolt (rebar bolt) and Pc-Bolt™(tube bolt). Product data sheets and brochures for both bolt types can be downloaded from www.pretec.no Factory in Haining, Zhejiang, China. Total area: 22000 m2.

    Get Price
  • NC-Bolt - Pretec AS

    2019-9-5u2002·u2002conditions, except when very high rock stresses may produce large radial deformations or strain bursting. We produce two types of combination bolts - NC-Bolt (rebar bolt) and Pc-Bolt™(tube bolt). Product data sheets and brochures for both bolt types can be downloaded from www.pretec.no. Factory in Haining, Zhejiang, China NC-Bolts packed on ...

    Get Price
  • Company Profiles_About__Zhejiang Pretec Metal Produtcs

    Zhejiang Pretec Metal Products Co., Ltd. was established in 2008 and officially put into production in June 2010. The company was originally located at No. 1-1 Danmei Road, Haining Economic and Technological Development Zone, covering an area of 20 acres; with the development of the company, in August 2016, it moved to the new factory area at No. 9 Jinchang Road.

    Get Price
  • Home - Pretec

    2021-9-28u2002·u2002Pretec Finland Oy Ab was established in March 2013. We sell and store products for construction and infrastructure industry. Pretec Group operates in Finland, Norway, Sweden, Denmark and Belgium. Pretec Group also has its own production factory in China (Pretec China), which was built in 2010. We specialize in: Rock support Frost and water ...

    Get Price
  • Grouting - Pretec AS

    2018-12-11u2002·u2002Pc-Bolt™ grouting video on www.pretec.no. This bolt type does not have the plastic grout pipe, so grout is pumped in through the central hole in the bolt steel to enter the annular space at the top end around the expansion shell and will fill the annulus between steel and rock top-down until grout appears through the hole in the bearing plate.

    Get Price
  • Corporate – Pretec Group - Pretec Group – Rock support

    Pretec China (Zhejiang Pretec Metal Products Co Ltd) moved to new factory, 10 000m2. Mechanical production of rock bolts and powder coating. Pretec started to work in the tunnel industry with rock bolts and products for water and frost proofing.

    Get Price
  • Pretec Group – Rock support – combination bolts with

    Combination bolts are effective for immediate work protection at the face after torque tensioning, and when later fully grouted, can be classified as permanent support. Workers are installing rock bolts in the face area while grouting of the bolts takes place at a convenient time and distance behind the face (typically about 50m).

    Get Price
  • China Rock Bolt manufacturer, Hollow Grouting Anchor

    2016-3-30u2002·u2002Pretec China was established in June 2010. We sell products for construction and infrastructure industry. Pretec China is the production factory of Pretec Group. Pretec Group operates in Finland, Norway, Sweden, Finland and Danmark. We specialize in: Rock …

    Get Price
  • Zhejiang Pretec Metal Produtcs Co Ltd.

    Zhejiang Pretec Metal Products Co., Ltd. Was Established In 2008 And Officially Put Into Production In June 2010. Company was originally located in No. 1-1 Danmei Road, Economic and Technological Development Zone, Haining City, covering an area of 20 mu.

    Get Price
  • Certificates – Pretec Group - Pretec Group – Rock support

    Certificates for Pretec China. Zhejiang Pretec Metal Co Ltd. Producer of bolts and acessories for rock support. To secure long service life for the products the factory offers PC-Coat TM. (hot dip galvanizing, zinc manganese phosphating and epoxy powder coating). Click for larger version.

    Get Price
  • NC-Bolt - Pretec Group – Rock support

    2020-12-8u2002·u2002conditions, except when very high rock stresses may produce large radial deformations or strain bursting. We produce two types of combination bolts - NC-Bolt (rebar bolt) and Pc-Bolt™(tube bolt). Product data sheets and brochures for both bolt types can be downloaded from www.pretec.no Factory in Haining, Zhejiang, China. Total area: 22000 m2.

    Get Price
  • NC-Bolt - Pretec AS

    2019-9-5u2002·u2002conditions, except when very high rock stresses may produce large radial deformations or strain bursting. We produce two types of combination bolts - NC-Bolt (rebar bolt) and Pc-Bolt™(tube bolt). Product data sheets and brochures for both bolt types can be downloaded from www.pretec.no. Factory in Haining, Zhejiang, China NC-Bolts packed on ...

    Get Price
  • Company Profiles_About__Zhejiang Pretec Metal Produtcs

    Zhejiang Pretec Metal Products Co., Ltd. was established in 2008 and officially put into production in June 2010. The company was originally located at No. 1-1 Danmei Road, Haining Economic and Technological Development Zone, covering an area of 20 acres; with the development of the company, in August 2016, it moved to the new factory area at No. 9 Jinchang Road.

    Get Price
  • Home - Pretec

    2021-9-28u2002·u2002Pretec Finland Oy Ab was established in March 2013. We sell and store products for construction and infrastructure industry. Pretec Group operates in Finland, Norway, Sweden, Denmark and Belgium. Pretec Group also has its own production factory in China (Pretec China), which was built in 2010. We specialize in: Rock support Frost and water ...

    Get Price
  • Grouting - Pretec AS

    2018-12-11u2002·u2002Pc-Bolt™ grouting video on www.pretec.no. This bolt type does not have the plastic grout pipe, so grout is pumped in through the central hole in the bolt steel to enter the annular space at the top end around the expansion shell and will fill the annulus between steel and rock top-down until grout appears through the hole in the bearing plate.

    Get Price
  • ZheJiang Pretec Metal Products Co.,Ltd - Company Profile

    Pretec China (ZheJiang Pretec Metal Products Co.,Ltd) was established in June 2010. We produce and sell products for construction and infrastructure industry. Pretec Group operates in Finland, Norway, Sweden and Denmark. Pretec China is the production and purchase center of Pretec Group. We specialize in: Rock support Frost and water proofing;

    Get Price
  • China PC-Bolt R27/15 Combination Bolt/Rock Support (G4 ...

    China PC-Bolt R27/15 Combination Bolt/Rock Support (G4), Find details about China Combination Bolt, Grouting Rock Bolt from PC-Bolt R27/15 Combination Bolt/Rock Support (G4) - Zhejiang Pretec Metal Products Co., Ltd

    Get Price
  • Productprogram - Pretec

    2019-10-4u2002·u2002Rock bolt M20x3000 HDG 607 104203000 Round steel 4.8/500 for M20x4000 HDG 807 104204000 expansion shell M20x5500 HDG 1110 10420550 Thead: 2xM20x150 Threaded bolt 8.8 Pc-Coat M16x260 Pc-Coat 35 108160260 Bolts for PE-foam, ceiling-and M16x310 Pc-Coat 42 108160310 -wall element etc. ...

    Get Price
  • Home

    Pretec Underground Private Limted (PretecIndia) was established in 2019. The company has a registered capital base of 50 Lakhs Indian Rupees and is a 100% owned subsidiary of Pretec Group AS, which has its Head Office in Norway. The company is specialized in supply the market with combination bolts, both NC-Bolt and PC-Bolt with long service life.

    Get Price
  • Rockfall protection mesh - pretec.fi

    Pretec AS – www.pretec.no – Telefon: 69 10 24 60 Innhold kan endres uten forutgående beskjed. Rockfall protection mesh Rockfall protection mesh used as a system to prevent rockfall onto roads and railways. Is used together with rock bolts and other system elements to catch falling rocks from slopes and cuts and prevent falls onto roads

    Get Price
  • Performance of bolting systems in tension and the ...

    2020-7-2u2002·u2002Rock bolt sleeve shear : Double shear test . Determination of the integrity of the rock bolt coated sleeve in shear : One test per vertical displacement of 15, 25 and 25 mm UOW method of double shearing . Tensile failure testing of rock bolts . The tensile strength test involved subjecting the bolt to tension until failure, to determine the

    Get Price
  • NTN Network 2021 - Rock excavation and support

    MEMBERS. Norwegian Tunnelling Network (NTN) companies provide a wide range of services in the field of development, design, construction, operation and maintenance of tunnels and underground facilities. NTN is established to provide commercial services to international clients and customers. The network consists of various product and equipment ...

    Get Price
  • 'Performance of bolting systems in tension and the ...

    A series of laboratory tests were carried out on sleeved bolt and domed washer plates and nuts to determine; • the tensile strength properties of 24 mm (200 mm core) diameter rock bolts (M24 Bolt), • pull through testing of the bolting system consisting of bolt, domed washer plate and nut integrity, • Integrity of the rock bolt fitted with protective plastic sleeve subjected to shearing.

    Get Price
  • Defining the future underground - Normet

    DEFINING THE FUTURE UNDERGROUND. Normet is a fast growing and innovative company with a mission to lead the transformation into a more digital and sustainable tomorrow. Within underground mining and tunnelling, we have amassed process expertise in over thousands of projects all over the world. 50.

    Get Price
  • Corporate – Pretec Group - Pretec Group – Rock support

    Pretec China (Zhejiang Pretec Metal Products Co Ltd) moved to new factory, 10 000m2. Mechanical production of rock bolts and powder coating. Pretec started to work in the tunnel industry with rock bolts and products for water and frost proofing.

    Get Price
  • Pretec Group – Rock support – combination bolts with

    Combination bolts are effective for immediate work protection at the face after torque tensioning, and when later fully grouted, can be classified as permanent support. Workers are installing rock bolts in the face area while grouting of the bolts takes place at a convenient time and distance behind the face (typically about 50m).

    Get Price
  • China Rock Bolt manufacturer, Hollow Grouting Anchor

    2016-3-30u2002·u2002Pretec China was established in June 2010. We sell products for construction and infrastructure industry. Pretec China is the production factory of Pretec Group. Pretec Group operates in Finland, Norway, Sweden, Finland and Danmark. We specialize in: Rock …

    Get Price
  • Zhejiang Pretec Metal Produtcs Co Ltd.

    Zhejiang Pretec Metal Products Co., Ltd. Was Established In 2008 And Officially Put Into Production In June 2010. Company was originally located in No. 1-1 Danmei Road, Economic and Technological Development Zone, Haining City, covering an area of 20 mu.

    Get Price
  • Certificates – Pretec Group - Pretec Group – Rock support

    Certificates for Pretec China. Zhejiang Pretec Metal Co Ltd. Producer of bolts and acessories for rock support. To secure long service life for the products the factory offers PC-Coat TM. (hot dip galvanizing, zinc manganese phosphating and epoxy powder coating). Click for larger version.

    Get Price
  • NC-Bolt - Pretec Group – Rock support

    2020-12-8u2002·u2002conditions, except when very high rock stresses may produce large radial deformations or strain bursting. We produce two types of combination bolts - NC-Bolt (rebar bolt) and Pc-Bolt™(tube bolt). Product data sheets and brochures for both bolt types can be downloaded from www.pretec.no Factory in Haining, Zhejiang, China. Total area: 22000 m2.

    Get Price
  • NC-Bolt - Pretec AS

    2019-9-5u2002·u2002conditions, except when very high rock stresses may produce large radial deformations or strain bursting. We produce two types of combination bolts - NC-Bolt (rebar bolt) and Pc-Bolt™(tube bolt). Product data sheets and brochures for both bolt types can be downloaded from www.pretec.no. Factory in Haining, Zhejiang, China NC-Bolts packed on ...

    Get Price
  • Company Profiles_About__Zhejiang Pretec Metal Produtcs

    Zhejiang Pretec Metal Products Co., Ltd. was established in 2008 and officially put into production in June 2010. The company was originally located at No. 1-1 Danmei Road, Haining Economic and Technological Development Zone, covering an area of 20 acres; with the development of the company, in August 2016, it moved to the new factory area at No. 9 Jinchang Road.

    Get Price
  • Home - Pretec

    2021-9-28u2002·u2002Pretec Finland Oy Ab was established in March 2013. We sell and store products for construction and infrastructure industry. Pretec Group operates in Finland, Norway, Sweden, Denmark and Belgium. Pretec Group also has its own production factory in China (Pretec China), which was built in 2010. We specialize in: Rock support Frost and water ...

    Get Price
  • Grouting - Pretec AS

    2018-12-11u2002·u2002Pc-Bolt™ grouting video on www.pretec.no. This bolt type does not have the plastic grout pipe, so grout is pumped in through the central hole in the bolt steel to enter the annular space at the top end around the expansion shell and will fill the annulus between steel and rock top-down until grout appears through the hole in the bearing plate.

    Get Price
  • Corporate – Pretec Group - Pretec Group – Rock support

    Pretec China (Zhejiang Pretec Metal Products Co Ltd) moved to new factory, 10 000m2. Mechanical production of rock bolts and powder coating. Pretec started to work in the tunnel industry with rock bolts and products for water and frost proofing.

    Get Price
  • Pretec Group – Rock support – combination bolts with

    Combination bolts are effective for immediate work protection at the face after torque tensioning, and when later fully grouted, can be classified as permanent support. Workers are installing rock bolts in the face area while grouting of the bolts takes place at a convenient time and distance behind the face (typically about 50m).

    Get Price
  • China Rock Bolt manufacturer, Hollow Grouting Anchor

    2016-3-30u2002·u2002Pretec China was established in June 2010. We sell products for construction and infrastructure industry. Pretec China is the production factory of Pretec Group. Pretec Group operates in Finland, Norway, Sweden, Finland and Danmark. We specialize in: Rock support Frost and water proofing;

    Get Price
  • Zhejiang Pretec Metal Produtcs Co Ltd.

    Zhejiang Pretec Metal Products Co., Ltd. Was Established In 2008 And Officially Put Into Production In June 2010. Company was originally located in No. 1-1 Danmei Road, Economic and Technological Development Zone, Haining City, covering an area of 20 mu.

    Get Price
  • Certificates – Pretec Group - Pretec Group – Rock support

    Certificates for Pretec China. Zhejiang Pretec Metal Co Ltd. Producer of bolts and acessories for rock support. To secure long service life for the products the factory offers PC-Coat TM. (hot dip galvanizing, zinc manganese phosphating and epoxy powder coating). Click for larger version.

    Get Price
  • NC-Bolt - Pretec Group – Rock support

    2020-12-8u2002·u2002conditions, except when very high rock stresses may produce large radial deformations or strain bursting. We produce two types of combination bolts - NC-Bolt (rebar bolt) and Pc-Bolt™(tube bolt). Product data sheets and brochures for both bolt types can be downloaded from www.pretec.no Factory in Haining, Zhejiang, China. Total area: 22000 m2.

    Get Price
  • NC-Bolt - Pretec AS

    2019-9-5u2002·u2002conditions, except when very high rock stresses may produce large radial deformations or strain bursting. We produce two types of combination bolts - NC-Bolt (rebar bolt) and Pc-Bolt™(tube bolt). Product data sheets and brochures for both bolt types can be downloaded from www.pretec.no. Factory in Haining, Zhejiang, China NC-Bolts packed on ...

    Get Price
  • Company Profiles_About__Zhejiang Pretec Metal Produtcs

    Zhejiang Pretec Metal Products Co., Ltd. was established in 2008 and officially put into production in June 2010. The company was originally located at No. 1-1 Danmei Road, Haining Economic and Technological Development Zone, covering an area of 20 acres; with the development of the company, in August 2016, it moved to the new factory area at No. 9 Jinchang Road.

    Get Price
  • Home - Pretec

    2021-9-28u2002·u2002Pretec Finland Oy Ab was established in March 2013. We sell and store products for construction and infrastructure industry. Pretec Group operates in Finland, Norway, Sweden, Denmark and Belgium. Pretec Group also has its own production factory in China (Pretec China), which was built in 2010. We specialize in: Rock support Frost and water ...

    Get Price
  • Grouting - Pretec AS

    2018-12-11u2002·u2002Pc-Bolt™ grouting video on www.pretec.no. This bolt type does not have the plastic grout pipe, so grout is pumped in through the central hole in the bolt steel to enter the annular space at the top end around the expansion shell and will fill the annulus between steel and rock top-down until grout appears through the hole in the bearing plate.

    Get Price