Achieve precise tunnel profiling and safe scaling with Beilite hydraulic hammers. Essential tools for controlled rock breaking, eliminating overbreak, and preparing tunnel walls for reinforcement in mining and civil engineering projects.
Hydraulic Breakers for Tunnel Engineering Compatible With Wide Excavators
| Model |
Chisel |
Suitable Excavator |
Working Flow |
Working Pressure |
Impact Frequency |
| BLTB-40 |
40mm |
0.5t-1.2t |
15-30 L/min |
90-120 bar |
800-1400 bpm |
| BLTB-45 |
45mm |
0.8t-1.5t |
20-40 L/min |
90-120 bar |
700-1200 bpm |
| BLTB-53 |
53mm |
1.5t-3.5t |
20-50 L/min |
90-120 bar |
600-1100 bpm |
| BLTB-60 |
60mm |
3t-5t |
30-60 L/min |
100-130 bar |
500-1000 bpm |
| BLTB-70 |
70mm |
4.5t-6t |
40-70 L/min |
110-140 bar |
500-900 bpm |
| BLTB-75 |
75mm |
6t-8.5t |
50-90 L/min |
120-150 bar |
400-800 bpm |
| BLTB-85 |
85mm |
7t-11t |
60-100 L/min |
130-160 bar |
400-800 bpm |
| BLTB-100 |
100mm |
10t-14t |
80-110 L/min |
150-170 bar |
350-700 bpm |
| BLTB-125 |
125mm |
14t-18t |
90-120 L/min |
150-170 bar |
350-650 bpm |
| BLTB-135 |
135mm |
18t-22t |
100-150 L/min |
160-180 bar |
350-500 bpm |
| BLTB-140 |
140mm |
20t-24t |
120-180 L/min |
160-180 bar |
350-500 bpm |
| BLTB-150 |
150mm |
24t-27t |
130-190 L/min |
180-200 bar |
200-300 bpm |
| BLTB-155 |
155mm |
27t-33t |
180-240 L/min |
200-220 bar |
200-300 bpm |
| BLTB-165 |
165mm |
33t-38t |
200-260 L/min |
210-230 bar |
150-300 bpm |
| BLTB-175 |
175mm |
40t-45t |
220-270 L/min |
230-250 bar |
130-200 bpm |
| BLTB-185 |
175mm |
45t-55t |
230-280 L/min |
250-270 bar |
100-140 bpm |
| BLTB-190 |
190mm |
45t-55t |
240-290 L/min |
250-270 bar |
100-140 bpm |
| BLTB-195 |
195mm |
50t-60t |
260-310 L/min |
260-280 bar |
100-140 bpm |
| BLTB-200 |
200mm |
50t-65t |
280-330 L/min |
280-300 bar |
100-130 bpm |
| BLTB-205 |
205mm |
55t-75t |
320-380 L/min |
280-300 bar |
100-130 bpm |
| BLTB-210 |
210mm |
60t-90t |
340-400 L/min |
280-300 bar |
90-120 bpm |
| BLTB-215 |
215mm |
65t-95t |
350-410 L/min |
280-300 bar |
90-120 bpm |
| BLTB-220 |
220mm |
70t-100t |
370-430 L/min |
300-330 bar |
80-110 bpm |
| BLTB-230 |
230mm |
75t-110t |
400-460 L/min |
300-330 bar |
80-110 bpm |
| BLTB-235 |
235mm |
75t-120t |
420-480 L/min |
300-330 bar |
80-110 bpm |
| BLTB-245 |
255mm |
90t-130t |
450-550 L/min |
300-330 bar |
70-100 bpm |
| BLTB-260 |
260mm |
90t-160t |
490-590 L/min |
300-330 bar |
70-100 bpm |
| BLTB-280 |
260mm |
120t-350t |
550-650 L/min |
300-330 bar |
60-90 bpm |
Tunnel Profiling Focus on
Tunnel profiling refers to shaping the excavated rock face to meet the exact design dimensions (the profile) required for the final lining and services. Hydraulic breakers are critical for achieving this precision in both civil (subway, road, utility) and mining tunnels:
Contour Correction (Trimming): Used after blasting to trim or chip away high spots of rock that extend into the tunnel profile. This ensures the tunnel meets the required clearance specifications and reduces the need for expensive concrete overfill (overbreak).
Scaling and Safety: A primary function is the careful removal of loose or fractured rock fragments (scaling) from the tunnel roof and walls immediately after blasting. This is a crucial safety measure to prevent rock falls during subsequent construction phases.
Controlled Excavation: Employed for breakout and advance in sensitive areas where the use of explosives is prohibited or strictly controlled (e.g., near existing structures, urban areas, or fault lines). The breaker provides controlled, low-vibration rock fragmentation.
Shaft and Portal Preparation: Used for initial breakout and shaping of the tunnel entrance (portal) and for deepening or developing vertical access shafts, ensuring the structural integrity of the openings.
Preparing Surfaces for Support: Breaking away uneven or fractured rock to create a stable, firm surface necessary for the secure installation of rock bolts, shotcrete, or other primary support elements.
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