HB20G HB30G HB40G Oil Seal Kit | Excavator Hammer Repair Parts

Q1: What material does SLYM use for these breaker seal kits?

A: SLYM never compromises on raw materials. Our main piston seals and buffer rings are manufactured from premium, high-density Polyurethane (PU), and our backup O-rings utilize top-tier Fluororubber (FKM/Viton). This material combination ensures exceptional wear resistance, high elasticity memory, and thermal stability up to 120°C, preventing premature seal hardening during continuous hard rock hammering.

Q2: Are SLYM seal kits compatible with my specific hydraulic hammer brand?

A: Yes, 100%. SLYM Machinery has over 10 years of precision manufacturing experience. We supply OEM-matching replacement seal sets perfectly compatible with major global rock breaker brands, including Soosan, Furukawa, Montabert, Krupp, Atlas Copco, NPK, and MSB.

Q3: Why should I replace the full seal kit instead of just a single leaking ring?

A: For professional maintenance, replacing the full kit is the safest and most cost-effective choice. When one seal fails, the surrounding rings have likely endured the same high-pressure impulses (35MPa) and thermal stress. Replacing the complete system restores uniform sealing pressure, eliminates the risk of repeated oil leaks, and saves you from unscheduled excavator downtime.

Q4: How does SLYM prevent stone dust from damaging the breaker cylinder?

A: Every SLYM seal kit features an advanced metal-cased reinforced Dust Seal (Wiper Seal). This heavy-duty dual-lip design forms a tight barrier around the piston rod, aggressively scraping away fine stone dust and abrasive debris before they can enter the cylinder and cause costly scoring or internal leakage.

Q5: What information do I need to provide to get the correct replacement model?

A: To ensure a flawless fit, simply provide our sales team with your hydraulic breaker brand, model number, or the OEM part number if available. If you are dealing with a modified or rare hammer, you can also send us the direct dimensions of the piston or old seals, and our technical team will configure a customized solution for you.