SM100 Top Type Hydraulic Breaker | 100mm Chisel Hammer - SLYM

Full Product Overview & Technical Engineering

At SLYM Machinery, we build tools that outlast the competition. The SM100 is manufactured using high-alloy forged steel and undergoes advanced heat-treatment processing to achieve deep core toughness. Writing from the perspective of our after-sales field support and factory technicians, here is what makes the SM100 a premium asset:

⚙️ Advanced Technical Features

• 100mm High-Durability Chisel: Forged from proprietary alloy steel and heat-treated to exact specifications, providing extreme fracture resistance during continuous hard rock hammering.

• Optimized Piston-Valve Matching: Our inner-valve structure ensures precise hydraulic synchronization between the piston and the control cylinder, significantly reducing oil temperature buildup.

• Powerful Accumulator Technology: Absorbs pressure spikes to protect the excavator's hydraulic pump while storing energy to unleash explosive impact power on every stroke.

️ Primary Applications & Compatibility

• Carrier Class: Ideal for mid-sized 12 - 15 Ton class excavators and backhoe loaders.

• Project Types: Open-pit quarrying, secondary block breaking, urban infrastructure development, road building, and concrete demolition.

Comprehensive Maintenance & Spare Parts Support

To prevent any unscheduled project downtime, SLYM maintains an extensive inventory of precision-engineered components. Every SM100 order can be packed with our factory-recommended Spare Parts Kit, featuring:

• Premium Cylinder Seal Kits (High-temperature, high-pressure polyurethane seals)

• Replacement Chisels (Moil point, wedge, or blunt options based on your job site rock profile)

• Main Charging Tools & Nitrogen N2 Bottles

• Internal Bushings & Retaining Pins

Q1: Why is my hydraulic oil turning black?

The Technician's Answer: "Black Oil" is a warning sign that contaminants are entering your system. This is usually caused by two things:

• Aged Seals: If you haven't replaced your seal kits in over 6 months, the rubber begins to wear down into microscopic black particles.

• Clogged Exhaust Screw: If the breather/exhaust screw is blocked by a mix of grease and dust, the waste cannot escape and gets forced back into the hydraulic circuit.

Solution: Replace the seal kit immediately and clean the exhaust screw with solvent.

Q2: My hydraulic hoses are jumping or vibrating violently. What's wrong?

The Technician's Answer: This is a classic symptom of a gas leak. When the nitrogen (N2) pressure in the back head or accumulator is too low or has leaked out entirely, the breaker loses its "cushion," causing the hydraulic oil to pulsate violently through the hoses.

Solution: Stop operation immediately. Check the nitrogen pressure and refill to the levels specified in your SLYM manual.

Q3: Why did my chisel (tool) or piston chip/break at the striking face?

The Technician's Answer: This is almost always caused by excessive clearance.

Check the gap between your chisel and the bushing. If it is greater than 5mm, the chisel will "tilt" or wobble inside the hammer.

When the piston hits a tilted chisel, the force is concentrated on one edge rather than the center. This causes "pitting" or metal chunks to fly off.

Solution: Replace bushings once they hit the 5mm wear limit

Q4: My hydraulic breaker has lost power and is hitting "weak." Why?

The Technician's Answer: Before blaming the cylinder, check these three things:

• Nitrogen Pressure: Too much gas pressure can actually prevent the piston from traveling its full stroke; too little gas reduces the impact force.

• Oil Temperature: If your oil is overheating (above 80°C), it loses viscosity, leading to internal pressure bypass.

• Worn Seals: Internal leakage across the piston seals will reduce the striking power significantly.

Q5: What causes the tie-rods (through-bolts) to snap?

The Technician's Answer: The #1 killer of through-bolts is "Dry Firing" (firing the hammer without pressure on the chisel) or improper torque.

When you dry fire, the energy that should go into the rock goes into the hammer's own bolts and pins instead.

Solution: Ensure operators apply firm downward pressure before triggering. Check bolt torque every 50 operating hours.

Q6: How should I store my hydraulic breaker for the winter or off-season?

The Technician's Answer: Never leave it exposed to the elements.

• Push the Piston Up: This is the most important step. By pushing the piston into the cylinder, you keep the polished metal surfaces coated in oil and safe from rust.

• Bleed Nitrogen: This makes it easier to retract the piston and saves the seals from constant pressure.

• Plug the Ports: Use steel plugs on all hose connections to keep moisture out.

Hydraulic Breaker Operation in Cold Weather

Q1: Why does my hydraulic breaker leak oil only in winter?

In cold weather, temperature differences between the breaker housing and internal components can cause temporary thermal contraction. Newly installed oil seals may develop small clearances under these conditions, leading to minor oil seepage. This is usually temporary and improves after proper warm-up.

Q2: Is oil leakage after replacing a new seal a quality problem?

Not necessarily. New seals made of NBR rubber require proper operating temperature to achieve full elasticity and sealing performance. Minor leakage during cold conditions does not indicate a manufacturing defect in most cases.

Q3: Should hydraulic breakers be preheated like excavators?

Yes. Hydraulic breakers rely on hydraulic oil pressure and dynamic sealing. Without preheating, cold oil and rigid seals can increase wear, reduce sealing efficiency, and shorten service life.

Q4: How long should I preheat a hydraulic breaker in winter?

There is no fixed time. Preheating should continue until hydraulic oil temperature rises and the breaker operates smoothly without abnormal noise or vibration. Light, controlled impacts are recommended during this stage.

Q5: Can improper preheating damage the chisel or breaker?

Yes. Operating a breaker under full load with cold oil can cause excessive stress on the chisel, piston, and seals, leading to premature wear, cracks, or internal damage.