Ebh300(a) Rock Tunneling Boring Machine

The EBH300(A) is a boom‑type rock tunneling boring machine manufactured by He Bei Zhong Xuan Construction Machinery Co., Ltd. in China. It weighs 125 tonnes, providing the stability required for continuous cutting in hard rock. The overall footprint measures 12 280 mm × 3 200 mm × 2 450 mm, allowing it to operate in confined tunnel headings. Powered by a 632 kW main motor and a 150 kW powder‑pack unit, the machine delivers reliable energy for demanding projects.

The cutter system runs at 20 rpm and can achieve a maximum cutting height of 5 800 mm and width of 8 800 mm, which is typical for medium‑scale tunnelling applications. Rock hardness capability of up to 130 MPa places the EBH300(A) within the standard range for semi‑rock to hard‑rock excavation. A computer‑controlled, wireless remote system provides intelligent forming cutting and constant powder cutting, aligning with modern industry automation trends. The machine incorporates an advanced centralized lubrication system, a typical safety feature that reduces wear on moving parts.

It is commonly specified by contractors on highway, railway and water‑conservancy tunnelling projects. He Bei Zhong Xuan offers separate spindle loading and transport motors, which can simplify on‑site logistics. Prospective buyers should verify the supplier’s engineering drawings, request the ISO‑based safety and performance test reports, and confirm Incoterms and payment schedules before finalising the purchase.

He Bei Zhong Xuan Construction Machinery Co., Ltd. is based in Shijiazhuang, Hebei Province, China, with the address Room 2809, Building 2, East International Plaza, No 98 The Yellow River Rd, Hi‑Tech Zone, 050000. The supplier is listed as an imported tier with a harbor trust level; response data is not currently available, so communication timelines should be clarified directly with the company.

The company describes itself as a professional manufacturer of engineering, mining and hydraulic machinery, operating its own production base and partnering with international hydraulic component brands such as Bosch Rexroth, Harvey, Parker and Kawasaki. It highlights a focus on market‑leading technology and offers a range of machines, pumps and accessories, but does not disclose specific production volumes or client references.