Precision-Engineered Hydraulic Breaker Pistons specifically designed for MTB series (MTB 120, MTB 155, MTB 175, MTB 210, MTB 215) hammers. Our pistons are the premium choice for heavy-duty mining and demolition, offering a 100% seamless fit to restore your breaker’s impact frequency and energy. At Jinan Changhao (HWX), we specialize in high-strength alloy pistons that prevent oil leakage and internal scarring, ensuring maximum machine uptime.
Professional-Grade Hydraulic Breaker Piston for MTB 120, MTB 155, MTB 175, MTB 210, MTB 215 – Reliable Manufacturer
- Forged 20CrMo Alloy Steel: Every MTB series piston is manufactured from high-tensile forged 20CrMo steel. This material provides superior impact toughness compared to standard carbon steel, preventing internal cracking under extreme loads.
- Triple Vacuum Heat Treatment: Our proprietary heating and quenching cycle achieves a surface hardness of HRC 58-62, while maintaining the core’s structural integrity.
- High-Precision CNC Grinding: We maintain a strict matching tolerance of 5–7 wires (0.05mm – 0.07mm). This precision ensures a perfect oil film seal between the piston and the cylinder, preventing “piston stuck” issues even in high-temperature environments.
- Liquid Nitrogen Cryogenic Treatment: All pistons undergo deep-freeze processing to stabilize the molecular structure, preventing dimensional changes during long-shift operations.
MTB120 MTB155 hydrualic breaker piston
| Compatible MTB Model | Chisel Dia. Reference | Material Grade | Hardness | Tolerance |
|---|---|---|---|---|
| MTB 120 | 120 mm | 20CrMo / GCr15 | HRC 58 – 62 | 0.005 mm |
| MTB 155 | 155 mm | 20CrMo | HRC 58 – 62 | 0.005 mm |
| MTB 175 | 175 mm | 20CrMo | HRC 58 – 62 | 0.005 mm |
| MTB 210 / 215 | 210 / 215 mm | 20CrMo | HRC 58 – 62 | 0.005 mm |
Compatibility Assurance
100% Interchangeable: Our MTB pistons are designed based on original factory blueprints, ensuring 100% interchangeability with existing MTB parts.
Quality Guarantee: Every unit is 100% inspected for mirror-finish surface quality and precision dimensions before shipment.
Packaging: Shipped in anti-rust oil wrap and standard export wooden cases to ensure arrival in perfect condition.
As a trusted manufacturer, we specialize in producing high-performance hydraulic breaker pistons engineered for MTB 120, MTB 155, MTB 175, MTB 210, and MTB 215 models.
Crafted from premium alloy steel and processed with advanced vacuum heat treatment technology, our pistons deliver exceptional hardness, superior impact resistance, and prolonged service life under the most demanding working conditions.
MTB175 MTB210 hydraulic hammer piston
Each piston is precision-machined to ensure perfect compatibility, delivering powerful striking force, stable performance, and reduced maintenance needs for your breakers. Ideal for various applications in construction, mining, rock breaking, and large-scale demolition, our products are designed to minimize downtime and maximize productivity.
MTB215 rock breaker piston
We maintain strict quality control from raw material selection to final packaging, ensuring every piston meets international standards. With extensive experience in exporting to global markets, we offer competitive OEM solutions and reliable after-sales support.
Choose our MTB series pistons for durability, efficiency, and cost-effectiveness.


