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Φ63 single hydraulic prop

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Place of Origin: China - Shandong - Zibo
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Product Details

Shandong Zhengchang Coal Mine Machinery Co., Ltd. (Hereinafter referred to as Zhengchang) specializes in producing coal mine machines and also is a designated enterprise of China producing prop and support products used in coal mine and Shandong High-tech Enterprise. It is located in the southeastern part of Zibo city of Shandong province, enjoying an advantaged geographical location and convenient transportation conditions. President Zhao Bingchang was rated as “Outstanding Enterprise Manager in Coal Mine Supporting Industry” by China National Coal Association Logistics Branch this year; and Zhengchang has been rated as “Advanced Enterprise with Trustworthy Production Quality” by the national technology supervision department; “Contract-honoring & Promise-keeping Enterprise” by the quality association; and “Civilized and Honest Private Business” by the industrial and commercial administration. At present, the company mainly produces coal mine single hydraulic props, hinged top beams, gas vacuum pumps, suspension type movable supports, emulation pump stations, etc., all of which carry with mining safety marks. The products are mainly sold to large coal Groups in Sichuan, Chongqing, Guizhou, Jinjiang, Yunnan, Hunan, Shanxi and so forth, as well as Heilongjiang Longmei Group and major coal Groups in Shandong.

Zhengchang has passed the certifications of ISO9001:2000 Quality Management System and coal mine product safety nark certificate and boasts complete production devices, advanced detection facilities, sound detection measures, powerful technical force and strong R&D abilities. Its new environmentally friendly (multiple-element alloy sedimentary rock) single hydraulic prop project was listed in Shandong Key Projects in 2008; in addition, theΦ63 light hydraulic prop it developed obtained a national patent, is especially practical in places with 1 meter of lower coal bed and greater coal bed thickness fall and thus has been highly praised by coal mine users. At the requirements of thin-coal-seam coal mine users, Zhengchang newly developed QRB/RX-25/10 light emulation pump station, which is an important device and tool used in underground coal mine prop operation and safety products, features high efficiency, low consumption, safety, reliability, flexible and convenient movement and simple operation and is deeply popular with coal mine workers. These products have filled up domestic blank, won a number of national patents, and their core technologies have safe independent intellectual property rights and are leading in domestic market.

DW(04~16)-150/63 single hydraulic prop
Single hydraulic prop is an essential safety device in coal mine production and is used to improve safety production and prevent roof collapses. Existing hydraulic props with longer specifications but shorter strokes generally are suitable for working face with a higher coal seam but cannot be used in coal mining areas with a thin coal bed. According to the requirements of customers, Zhengchang has developed a kind of mining single hydraulic prop with a Φ63 cylinder bore, which is applicable to thin seam mining areas in underground coal mines, especially to coal beds with a height lower than 1 meter. The working medium of single hydraulic props with a shorter specification and longer stroke is emulsion or medium water; in addition, such props use optimized oil cylinders, plunger diameter and length, so that they have lower weight without affecting their support strength, about 45% lighter than common props withΦ100 cylinder diameters, so the labor intensity is greatly reduced. The reduction of the cylinder diameter and length in both oil cylinder and plunger makes the working medium quantity needed greatly reduced also; very little medium is drained out every time when the coal mine worker moves the prop. As workers almost work in a creeping state in an extremely thin working face, so less drained liquid will avoid workers from working in a muddy environment or harm to their health, and prevent contamination of groundwater.

Solemn After-sales Service Commitment
Zhengchang attaches great importance to after-sales service. In addition to superior quality, after-sales service is the most important commitment. Zhengchang has a professional after-sales service team. No matter which region its products are sold to, that region would have special after-sales personnel, and offices and repair stations will also be built in that region, helping users to select models, design and train operators, so that they will master the theories, technical features of the single props and ground operation specifications. 

Zhengchang provides on-site underground installation guide until the worker can operate independently, sends personnel to visit its customers irregularly to get users’ comments on use, solves problem in a timely manner when any issues arise, repairs or replaces the product timely during product warranty periods and normal application period, and dispatches corresponding personnel to customers’ sites anytime upon receiving customers’ notice, so as to ensure users’ production.

In an honest, pragmatic and innovative spirit, Zhengchang serves customers and satisfies users wholeheartedly.


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