EBZ230A Low-Profile Boom-Type Roadheader
The EBZ230A low-profile boom-type roadheader is a heavy-duty tunneling equipment built for global mining operations, optimized for thin-coal seams, low-clearance tunnels and complex mines with frequent hard-rock interlayers. It addresses common mining challenges including confined vertical working space, high hard-rock cutting resistance and inaccessible working faces for standard roadheaders.
The EBZ230A low-profile boom-type roadheader is a heavy-duty tunneling equipment built for global mining operations, optimized for thin-coal seams, low-clearance tunnels and complex mines with frequent hard-rock interlayers. It addresses common mining challenges including confined vertical working space, high hard-rock cutting resistance and inaccessible working faces for standard roadheaders. This machine adopts a low-height optimized structure while maintaining powerful 230 kW cutting performance. It reliably cuts rock with compressive strength up to 90 MPa and delivers excellent efficiency and cost-effectiveness under regular 65 MPa hard-rock conditions. Built with a rigid compact frame and modular split-assembly design, it is well-suited for confined work zones, small-cross-section roadways and hard-stratum mining, acting as a primary workhorse for rapid tunneling in thin-coal and hard-rock mines worldwide.
| EBZ230A (Low-Profile) Boom-Type Roadheader – Main Parameters | |
| Total weight (t) | 71 |
| Machine body length (m) | 10.5 |
| Machine body height (m) | Cover plate 1.65 / Cutting head horizontal 1.85 |
| Track outer width (m) | 2.7 |
| Gathering head total width (m) | 3.2 |
| Positioning cutting height (m) | 2.2 – 4.3 |
| Positioning cutting width (m) | 3.6 – 5.6 |
| Cutting area (m²) | 7.9 – 24 |
| Climbing ability (°) | ±18 |
| Cutting head undercut (mm) | 250 |
| Gathering head undercut (mm) | 350 |
| Max / economical uniaxial compressive strength of cut rock (MPa) | 90 / 65 |
| Ground bearing pressure (MPa) | 0.17 |
| Cutting motor power (kW) | 230 |
| Cutting head speed (r/min) | 37 |
| Oil pump motor power (kW) | 132 |
| Supply voltage | AC1140V – 50Hz |
| Maximum non-detachable part dimensions (m) | Main frame: 3.76 × 1.4 × 1.41 (can be split) Front chute: 4.05 × 0.71 × 0.64 Rear support frame: 2.64 × 1.46 × 1.35 |
| Maximum non-detachable part weight (t) | 7.9 |
Customized low-profile design for outstanding low-seam adaptability. The cover height is limited to only 1.65 m, specially developed for height-restricted roadways. It works reliably in low-clearance working faces where ordinary heavy-duty roadheaders cannot operate, enabling flexible steering and smooth travel within narrow underground tunnels.
High-power hard-rock cutting for stable performance in complex strata. Fitted with a high-torque 230 kW cutting motor with ample power reserve. It resists stalling or jamming when hitting hard-rock interlayers and tough surrounding rock. It supports fast routine tunneling for medium-hard rock as well as breakthrough tasks for local high-strength rock formations.
Superior underground terrain adaptability for stable movement. Widened track plates evenly distribute machine load with optimized ground pressure, achieving great anti-slip and anti-sinking performance. ±18° climbing capacity together with sufficient sumping depth effectively removes floor gangue and debris to keep travel paths flat during operation.
Wide-coverage muck collection for non-stop tunneling cycles. The 3.2 m wide shovel plate covers large gathering zones for high-efficiency muck pickup. It avoids clogging under heavy gangue loads and matches high-power cutting output, greatly cutting downtime caused by material blockages.
Easy split-unit transportation and broad mine compatibility. Its separable frame structure keeps maximum single non-detachable component weight manageable for narrow underground haulage ways. Compatible with standard mine AC1140V power supply, it sustains long-term full-load operation with low failure rates and straightforward daily maintenance.
