Different seals work together inside HB20G hydraulic breaker. Rod seal prevents external oil leakage from piston rod. Piston seal isolates high‑pressure and low‑pressure oil cavity inside cylinder. O‑rings and backup rings assist pressure-resistant sealing. Wear rings support piston and rod to avoid eccentric wear. Combined sealing system keeps hydraulic oil inside chamber, maintains stable working pressure, ensures normal cyclic impact of hydraulic hammer.

Special repair spare parts for HB20G hydraulic breaker. Used for routine maintenance, cylinder overhaul after oil leakage, pressure loss, weak striking. Suitable for quarry, municipal demolition, construction site breaker repair work. Widely purchased by machinery repair shops, equipment rental companies, global hydraulic breaker parts wholesalers.

Product Advantages

• English ✅ Complete full kit:All required seals in one package, one‑stop overhaul solution.
• ✅ Premium raw material:Good wear‑resistant, anti‑aging, adapt frequent impact condition.
• ✅ Exact fit size:OEM equivalent dimension, install fast without modification.
• ✅ Reduce failure:Solve oil leakage, pressure drop, restore breaker striking efficiency.
• ✅ Convenient storage:Independent sealed package, avoid dust and moisture damage.
• ✅ Factory direct supply:Cost‑effective wholesale price, lower maintenance expense.

Company Service

English We are professional exporter of hydraulic breaker spare parts. We supply HB20G hydraulic breaker seal kit, also offer seal kits for various breaker models, piston, chisels and other wearing parts. Sufficient stock supports fast sea & air shipment. We accept sample order, small trial order and bulk wholesale for global repair shops, dealers and rental enterprises. Provide pre‑sales model verification, parts reference guidance and long-term after‑sales support.

FAQ

Q1: Which breaker does this seal kit fit?

A1: This complete seal kit is specially designed for HB20G hydraulic breaker only.

Q2: What symptoms mean I need to replace seal kit?

A2: Outer oil leakage, inner cross‑oil, striking power getting weak, system pressure can not build up.

Q3: Does the kit include metal parts such as piston?

A3: This is seal repair kit, only contains rubber & PTFE sealing components, piston is not included.

Q4: Can I install without professional experience?

A4: Professional maintenance experience is required. Please follow breaker service manual during assembly.

Q5: Do you support bulk order for repair workshop?

A5: Yes, we support large‑volume wholesale, provide competitive price for regular buyers.