Import E Bolt Used In Coal Mine Conveyor — Buy in wholesale FOB from Supplier in China

The E‑bolt supplied by Henan Shuangzhi Machinery Equipment Co., Ltd. is a fastening component designed for scraper conveyors in fully mechanised coal mines. It is fabricated from 40CR steel unless the buyer specifies an alternative alloy, and it is commonly supplied with M24 studs, although M22, M26 and M30 options are also produced. The bolt family includes types such as 3TY‑48, 3TY‑02, 113S011208‑2 and 15GL‑2, each matching specific chain configurations. These dimensions and thread forms enable the bolt to secure the scraper to the chain for continuous coal transport.

In mining equipment practice, 40CR bolts are heat‑treated to achieve a typical tensile strength of about 800 MPa and a hardness around 260 HB, which meets the wear‑resistant demands of underground conveyors. The thread profile follows the standard M24 coarse pitch, with variants offering M24×2 and M24×3 filaments as seen on the 90S series. Surface finish is generally mirror‑polished to reduce friction and corrosion, and many users apply a zinc‑plating as a typical protective coating. Such specifications align with the GB/T 3077 bolt standard widely adopted in Chinese mining hardware.

Primary buyers are mining equipment manufacturers and maintenance contractors who require reliable, stock‑ready fasteners for rapid chain repairs. The bolts are supplied in bulk, with packaging typically as loose steel coils or bundled sets, and the supplier indicates that stock is available for immediate shipment. Importers should confirm the exact thread size, material grade and any required heat‑treatment, as well as negotiate Incoterms and payment terms directly with the supplier. Because the listing does not disclose minimum order quantities or lead times, those details must be clarified before placing an order.

Henan Shuangzhi Machinery Equipment Co., Ltd. is located in the Haojiang Steel Structure Logistics Park, Wuzhi County, Jiaozuo City, Henan Province, China. The company is listed with a harbour trust tier, indicating a verified business registration, though its response rate is currently recorded as 0 percent and average response time is not available. It specialises in manufacturing and supplying components for fully mechanised mining systems, with a focus on conveyor fittings and wear‑resistant fasteners.

The supplier’s catalogue highlights a range of E‑bolt variants that are kept in stock to meet urgent replacement needs on mining sites. While the listing does not provide details on annual production capacity or client references, it does state that the bolts are produced to meet customer‑specific material requirements when requested. Prospective buyers should request material certificates and any applicable test reports to confirm compliance with project specifications.