Top Type Hydraulic Breaker

The MXB Top Type Hydraulic Breaker is designed with a higher installation point on the excavator, delivering greater direct impact force and excellent performance in vertical breaking applications. Its tower-style configuration provides a wider working angle, offering outstanding flexibility and efficiency for horizontal and trench operations. Whether it’s building demolition, tunneling, underwater works, or other demanding conditions, the MXB Top Type breaker ensures powerful impact energy and versatile operation.

Practical performance guidance

• Match energy to material: hard rock breaks best with higher impact energy at lower blow frequency; asphalt and thin concrete favor higher frequency/lower energy. Modern breakers often allow tailoring energy/frequency to the job — request guidance or a demo to select settings.
• Leverage reach, not brute force: use the extended reach to position the tool precisely at the failure plane; correct positioning frequently shortens job time more than increasing power.
• Test on-site: before long runs, run a short on-site trial to measure penetration rate, carrier stability and hydraulic temperatures; adjust duty cycle and flow as needed. Equipment manufacturers and rental houses often support on-site commissioning.

Hydraulic & mounting checklist

• Carrier hydraulic specs: required working pressure (MPa/PSI) and recommended flow (L/min or GPM) must match the breaker model — undersized carriers will reduce blow energy, oversized carriers can over-stress components.
• Mounting geometry & boom strength: top-type units are longer; verify pin diameter, center-to-center, boom rating and reinforcement requirement. Some carriers need reinforced brackets for heavy top units.
• Аккумулятор & клапаны управления: for consistent blows on variable flow carriers, confirm accumulator sizing and whether a pressure-control valve or flow divider is recommended. Ask supplier for accumulator pre-charge guidelines.
• Hose routing & return lines: ensure correct hose length/ratings and free return path; continuous heavy-duty work benefits from proper oil cooling and filtration.

Installation & operation

1. Verify mounting plate and pin sizes against the breaker’s spec.
2. Install with manufacturer torque values; check boom/back-frame for reinforcement needs.
3. Connect hoses (pressure/return), bleed the system, and run the breaker at low flow to purge air.
4. Start with short bursts to verify blow energy and carrier behavior; monitor hydraulic oil temperature and listen for unusual noises.
5. Use controlled vertical strikes — avoid prying or long lateral lever actions that fatigue tool steel and cause premature wear.

Maintenance schedule (field-ready)

Daily

• Grease/lubricate tool bushing and retainer; inspect tool point and hoses for damage.

Еженедельно

• Check pin/bushing play, torque on mounting bolts, and look for oil seepage around valve housing.

Ежемесячно

• Inspect valve/piston components for wear; confirm nitrogen/accumulator pressure if equipped; check oil cleanliness and filters.

Service intervals

• Replace bushings, seals and toolpoints per hours or visible wear; plan a teardown inspection for rental or heavy-duty units at specified hour thresholds.

Tooling & accessories (recommendations)

• Moil / Bull point — fracturing rock and concrete.
• Wide flat/asphalt chisel — pavement cutting and asphalt removal.
• Long-reach chisel — for deep trenching or when added reach is required.
• Accumulator kits / flow-control valves — for consistent performance on carriers with variable auxiliary flows.
• Spare parts kits — toolpoints, bushings, seals, retaining pins for fast turnaround in the field.

Troubleshooting — quick diagnostics & fixes

• Symptom: Weak or inconsistent blows
  Check: hydraulic flow/pressure; air in lines; accumulator pre-charge; clogged valve orifices. Решение: verify carrier specs, bleed lines, check accumulator pressure and clean valves.
• Symptom: Excessive vibration or unusual noise
  Check: mounting bolts, liner wear, loose fasteners or damaged internal components. Решение: tighten per torque spec; inspect internal liners and replace worn parts.
• Symptom: Overheating oil
  Check: continuous duty cycle, oil cooler performance, return line restrictions. Решение: reduce continuous run time, increase oil cooling or adjust duty cycle.

How to choose the right Top Type model

1. Identify the carrier: share excavator model, operating weight, hydraulic flow & pressure with your supplier.
2. Define the job material: hard rock or heavy reinforced concrete → favor higher impact-energy model; thin concrete/asphalt → higher frequency model.
3. Decide reach vs weight trade-off: longer top-type models give reach but add length and some weight — ensure boom clearance and carrier stability.
4. Ask about accessories: accumulator kits, long-reach chisels, or reinforced mounting brackets for heavy-duty jobs.

Часто задаваемые вопросы

Q: Are top-type breakers noisier?
A: Noise depends on design and muffling — top-type geometry itself doesn’t inherently equal higher noise, but many top units lack full enclosures; ask suppliers for measured dB(A) figures under your carrier/test conditions.

Q: Can I run a top-type breaker on a lower-flow carrier?
A: You can, but expect reduced impact energy. Consider a low-flow model or flow-amplifier/accumulator kit for better performance on lower-flow carriers.

Q: How do I measure if a breaker is right for my job?
A: Run a controlled on-site trial: document penetration rate (m³/hr), hydraulic temperature, and operator feedback — use that data to finalize model and duty cycle.