About Us

Henan LIMING Heavy Industry Science and Technology Co. LTD which mainly manufacture large and medium-sized crushing and grinding equipments was founded in 1987. It is a modern joint-stock corporation with research, manufacturing and sales together. The Headquarter is located in HI-TECH Industry Development Zone of Zhengzhou and covers 80000 m ². Another workshop in Shangjie Industry Park covers 67000 m ². Over the more than 30 years, our company adheres to modern scientific management system, precision manufacturing, pioneering and innovation. Now LIMING has become the leader in domestic and oversea machinery manufacturing industry.

120

million

cubic meters

Industrial chain production base

70

national patents

689sets

national patents

170

Equipment service country

Company Culture

core values of the company

Create Value

Share Value

Observe Order

Respect Value

Service philosophy

Religious, fine, tight, and harmonious

LIMING spirit

Standardization, value, serialization, and differentiation will always exceed our contract

Brand Concept

Create and promote civilization, refine and interpret brilliantly

Business philosophy

Religious, meticulous, rigorous, and harmonious work

Our Global Footprint

Case Scene

Mine Duct Spunstrand

In 1960, our company built the first filament winding machine to produce FRP mine ventilation duct, and started an entirely new industry. These first non-metalic ducts were a big improvement over the heavier and conductive metal ducts. Our mine and tunnel ventilation ducts maintain a MSHA approval as a Class 1 rated duct system, and have been used in mining and tunneling applications now for 54 years. Spunstrand Inc. has a variety of duct

Mine Ventilation Ducting - Underground Ventilation System

For the most reliable underground ventilation system possible, make Plascorp your next choice. In addition to mine ventilation, Plascorp offers a range of highly-effective ducting. From flexible ducting to composite hosing, for over 50 years we have been

air duct for coal mine, air duct for coal mine Suppliers ...

Foshan Gaoming Dafeng Ventilation Equipment Factory. US $45-325 / Piece. 100 Pieces (Min. Order) PVC coal mine ventilation fan air duct Our tunnel and mining duct is suitable for high power strong ventilation fan which has been used in digging and coal mines with high gas content. Using double skin coated craft to stick the PVC fabric with high ...

DLK MINING

We produce flexible ventilation ducts for the mining industry, including the ducts designed for the areas with methane and pulverized coal explosion hazard, traffic tunnels and for other applications,with the use of top quality components. The DLK ventilation ducts have all the required parameters according to the anticipated type of application,

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one of the best manufacturer of tunnel ventilation duct,flexible mining ventilation duct,pls visit our website for details info about vent duct products.

Mine Tunnel Ventilation Products ABC Industries

ABC’s complete line of MineVent® layflat blower ducting, MineDuct® wire-reinforced exhaust ducting, RigiDuct® filament-wound fiberglass ducting, brattice cloth, curtains, fly pads, fans, and related accessories offer underground professionals a sole-source solution for ventilation products.

Underground Mine Ventilation Technical Aspects of

Mine fans are connected to an airway, either in a duct (pipe) or by being installed in a wall sealing a tunnel. Large U/G mines have a primary ventilation system, with large fans, which may be axial-flow or centrifugal, drawing air out of a return airway, thus causing fresh air to flow in through a different opening.

Rocvent Mine Tunnel Ventilation - Mine Tunnel

If you're looking to vent, you've come to the right place. Rocvent Inc. is a major manufacturer of all types of Mine and Tunnel Ventilation, Tubing and Ducting with over 35 years of service to customers world wide. Additionally, we offer a full line of Main Fans, Secondary

UNDERGROUND VENTILATION (METALLIFERROUS MINES)

The basis of effective ventilation of underground mines is the adequacy of the primary ventilation system, that is the total volume flow through the mine which is conducted through the major underground workings, normally involving splits into parallel circuits. Factors which determine total primary volume capacity (and pressure) requirements

Mining Rig, Room, And Farm Cooling Ideas

Getting your mining rigs room temperatures under control in the summer can be a frustrating task for sure. However, with these cooling ideas in which I'm about to share with you, I was able to achieve the impossible by keeping 26 eth mining rigs running stable all summer long in a metal building without AC.

Mine Ventilation Ducting - Underground Ventilation

Plascorp can supply you with all your ventilation needs, to install a new ventilation system for underground mining or industrial applications. For the most reliable underground ventilation system possible, make Plascorp your next choice. In addition to mine ventilation

China PVC Mining Ventilation Air Duct for Mining ...

PVC Mining Ventilation Duct Must be flame-retardant, tear-resistant, wear-resistant, strong in tension, good in toughness, completely isolated UV, waterproof, wind resistant, with durable bonding and other excellent properties and able to withstand a certain pressure. Mine and Tunnel Ventilation

Ventbag Mine Ventilation Ducting Systems, Nixon flaps ...

All our ventilation duct systems use seam welded technology Ventbag, Biduct and twinduct just to name a few go through quality assurance and testing methods to ensure our systems can be installed into the mine site faster creating less downtime and less replacement costs. We have strategically placed distribution locations around Australia and international shipping constantly providing on ...

air duct for coal mine, air duct for coal mine Suppliers ...

Foshan Gaoming Dafeng Ventilation Equipment Factory. US $45-325 / Piece. 100 Pieces (Min. Order) PVC coal mine ventilation fan air duct Our tunnel and mining duct is suitable for high power strong ventilation fan which has been used in digging and coal mines with high gas content. Using double skin coated craft to stick the PVC fabric with high ...

supplier of tunnel ventilation duct flexible,mining ...

one of the best manufacturer of tunnel ventilation duct,flexible mining ventilation duct,pls visit our website for details info about vent duct products.

Rocvent Mine Tunnel Ventilation - Mine Tunnel

Ventilation solutions for underground mine and tunnel applications. Duct Tubing . Spiral-reinforced ducting, layflat tubing, duo-duct, shaft tubing and steel duct products. View Products. Couplings. Snap-roc coupling, ring coupling, zipper coupling and steel coupling products. View Products. Accessories. Messenger cabling kit, wye and tee fittings, engineered elbows, band-aid, pvc and steel ...

Mine Tunnel Ventilation Products ABC Industries

Mining Ventilation. Underground construction operations depend on thorough planning to meet expectations in execution of every element of a project—and the most extreme mining and tunneling operations demand the most dependable, durable ventilation products available today. Since 1926, ABC Industries, Inc. has been a leading provider of high ...

PVC Vent Steel Duct Mining Vents Ventilation Vents ...

08/11/2015  Next time you repair your underground mining duct, consider the newer, more efficient alternative. Increased Efficiency . Hooking up the same 75HP fan to two different pipes will get very different results. Put to the test, PVC air vents move 66% more air than steel corrugated duct

UNDERGROUND VENTILATION (METALLIFERROUS MINES) GUIDELINE

In present day mining, ventilation systems designed and operated to maintain efficient operations will normally enable a high standard of occupational health and safety to be achieved. Issued: December 1997 Page 3 Version 1.0. Underground Ventilation (Metalliferrous Mines) Document No. ZED569LF Department of Industry and Resources 2.0 LEGISLATIVE REQUIREMENTS (WA ) The Mines Safety

Mining Rig, Room, And Farm Cooling Ideas

Getting your mining rigs room temperatures under control in the summer can be a frustrating task for sure. However, with these cooling ideas in which I'm about to share with you, I was able to achieve the impossible by keeping 26 eth mining rigs running stable all summer long in a metal building without AC.

Flexible Ducting for Mining Global Supplier of ...

This creates the strongest, reinforced flexible duct for the job. Finally, ducting used in mining needs to stand up to extremely high temperatures, gasses and be fire-resistant. This is why RiteChoice developed our Hi-Temp ducting. We use a single-sided silicone-coated fiberglass fabric that can withstand temperatures of 550º F. We know the importance of mining safety and ventilation, which ...

G+ Speed Air Duct G+ Plastics

SAFETY DURABILITY. The G+ SPEED AIR DUCT, which contains a fire-retardant additive, complies with the CAN/CSA M427-M91 standard Fire-Performance Requirements for Ventilation Materials.. It also fulfills the 30 CFR 7.28 test for the flame resistance of rigid mining ventilation ducts, as required by the US Mine Safety and Health Administration (MSHA).

China PVC Mining Ventilation Air Duct for Mining ...

PVC Mining Ventilation Duct Must be flame-retardant, tear-resistant, wear-resistant, strong in tension, good in toughness, completely isolated UV, waterproof, wind resistant, with durable bonding and other excellent properties and able to withstand a certain pressure. Mine and Tunnel Ventilation Tube Main specification: Part Number : Fabric size: weight: Anti-static, B1 FR: DG1122: 1000D*1000D ...

air duct for coal mine, air duct for coal mine Suppliers ...

Foshan Gaoming Dafeng Ventilation Equipment Factory. US $45-325 / Piece. 100 Pieces (Min. Order) PVC coal mine ventilation fan air duct Our tunnel and mining duct is suitable for high power strong ventilation fan which has been used in digging and coal mines with high gas content. Using double skin coated craft to stick the PVC fabric with high ...

Ventbag Mine Ventilation Ducting Systems, Nixon flaps ...

All our ventilation duct systems use seam welded technology Ventbag, Biduct and twinduct just to name a few go through quality assurance and testing methods to ensure our systems can be installed into the mine site faster creating less downtime and less replacement costs. We have strategically placed distribution locations around Australia and international shipping constantly providing on ...

Ventilation Duct,Ventilation Duct price,Ventilation Duct ...

Introduction of Ventilation Duct Application:used in coal mines, tunnels, underground local fan for negative pressure ventilation; air duct varieties: coated cloth duct by rubber coated cloth material into a positive pressure air duct, plastic and rubber coated cloth duct pressure coated cloth duct pressure.

China PVC Ventilation Air Ducts for Mining - China Air ...

Air Duct, Flexible Air Duct, PVC Flexible Duct manufacturer / supplier in China, offering PVC Ventilation Air Ducts for Mining, Mpc Series Wagon for Mining Flat Rail Wagon Sale, Mpc2 Mining Transportation Equipment Rail Wagon Flat Rail Car and so on.

PVC Vent Steel Duct Mining Vents Ventilation Vents ...

08/11/2015  Next time you repair your underground mining duct, consider the newer, more efficient alternative. Increased Efficiency . Hooking up the same 75HP fan to two different pipes will get very different results. Put to the test, PVC air vents move 66% more air than steel corrugated duct

Mining Rig, Room, And Farm Cooling Ideas

Getting your mining rigs room temperatures under control in the summer can be a frustrating task for sure. However, with these cooling ideas in which I'm about to share with you, I was able to achieve the impossible by keeping 26 eth mining rigs running stable all summer long in a metal building without AC.

Rocvent Mine Tunnel Ventilation - Specialty Items

Duct Repair Solutions; Accessories; Fans; Specialty Items; Services; Contact; Customer Sales and Support: +1 705 692 5854 [email protected] Underground mine and tunnel ventilation products. Specialty Items. Ventilation Curtains. Rocvent manufactures our standard ventilation curtains with reinforced edges complete with grommets and snap hooks installed on all three sides for ease of ...