EBH320 Boom‑Type Roadheader
The EBH320 boom‑type roadheader is a heavy‑duty mining machine built for medium‑to‑large underground roadway excavation. It integrates cutting, loading, conveying and travelling functions in one robust unit. Suitable for coal mines, metal mines and various underground working conditions, it flexibly forms roadways of multiple cross‑section sizes. Its split‑assembly design enables convenient transportation and installation in confined underground spaces. Supported by high‑power systems, this unit delivers high excavation efficiency and stable performance, serving as a primary workhorse for large‑scale hard‑rock tunneling projects.
The EBH320 boom‑type roadheader is a heavy‑duty mining machine built for medium‑to‑large underground roadway excavation. It integrates cutting, loading, conveying and travelling functions in one robust unit. Suitable for coal mines, metal mines and various underground working conditions, it flexibly forms roadways of multiple cross‑section sizes. Its split‑assembly design enables convenient transportation and installation in confined underground spaces. Supported by high‑power systems, this unit delivers high excavation efficiency and stable performance, serving as a primary workhorse for large‑scale hard‑rock tunneling projects.
| EBH320 Boom-Type Roadheader – Main Parameters | |
| Total weight (t) | 130 |
| Machine length (m) | 13.1 |
| Machine height (m) | Cover plate 2.16 / Cutter head level 2.6 |
| Track outer width (m) | 3.31 |
| Gathering head total width (m) | 3.8 / 3.6 |
| Positioning cutting height (m) | 3.3 – 5.6 |
| Positioning cutting width (m) | 4.4 – 6.8 |
| Cutting area (m²) | 14.5 – 38 |
| Climbing ability (°) | ±18 |
| Cutter head undercut (mm) | 320 |
| Gathering head undercut (mm) | 510 |
| Max. / Economical rock compressive strength (MPa) | 120 / 80 |
| Ground contact pressure (MPa) | 0.17 |
| Cutting motor power (kW) | 320 |
| Cutter head speed (r/min) | 20 |
| Hydraulic pump motor power (kW) | 200 |
| Power supply voltage | AC1140V – 50Hz |
| Max. non‑detachable part dimensions (m) | Front main frame: 3.96 × 1.55 × 1.73 (split‑type available) Middle scraper trough: 3.32 × 0.79 × 0.60 Rear support frame: 1.79 × 2.96 × 1.52 |
| Max. weight of non‑detachable part (t) | 8.1 |
Superior Hard‑rock Cutting Performance
Capable of cutting rock with uniaxial compressive strength up to 120 MPa, and achieves cost‑effective excavation at 80 MPa. It maintains steady rock‑breaking efficiency for high‑strength surrounding rock, ideal for hard‑rock mine operations.
Wide Adaptability for Roadway Sizes
Flexible adjustment of cutting height and width supports cross‑section areas from 14.5 ㎡ to 38 ㎡. One machine handles multiple roadway dimensions without frequent equipment replacement.
Reliable Travel on Complex Terrain
Low ground pressure of 0.17 MPa prevents sinking and skidding. It negotiates slopes up to ±18° for undulating underground roadways. Wide‑width shovel plate efficiently gathers fallen materials and reduces material accumulation.
Convenient Underground Transportation & Assembly
Modular split‑structure design. The heaviest single non‑detachable component weighs only 8.1 tons. Compact segmented dimensions suit narrow underground tunnels for easy transport and on‑site assembly, lowering site‑entry barriers.
Abundant & Durable Power Output
Dual high‑power configuration: 320 kW cutting motor plus 200 kW oil pump motor delivers stable power supply. AC1140 V power input matches standard underground mine power supply, ensuring high reliability for long‑time continuous operation.
