Huilian SB81TRF Membrane — Reliable Excavator Breaker Seal
Product Overview
The SB81TRF membrane by Huilian is a high-quality replacement diaphragm designed for hydraulic breakers and excavator hammer systems. Manufactured with precision and High Quality materials, this membrane provides reliable sealing, stable performance, and extended service life. Huilian — founded in 2005 — is a leading OEM supplier of excavator breaker parts, exporting to over 90 countries.
Key Features
Durable and Wear-Resistant
Made from advanced rubber compounds, the SB81TRF membrane resists tear and abrasion to withstand heavy-duty use on construction and demolition sites.
Oil and Heat Resistance
Formulated for hydraulic environments, it tolerates high temperatures and direct contact with hydraulic oil without deformation or premature aging.
Precision Fit
Manufactured to OEM specifications to ensure a reliable fit and consistent performance, reducing leaks and downtime.
Technical Highlights
- Part: SB81TRF membrane (diaphragm)
- Material: High-grade rubber compound
- Compatibility: Designed for a wide range of hydraulic breakers—check model fit list or contact us for confirmation
- Performance: High abrasion, oil, and heat resistance
- Packaging: Individually inspected and packaged to prevent damage
Benefits for Operators
Choosing the SB81TRF membrane brings practical advantages:
- Less downtime thanks to long service intervals.
- Improved breaker efficiency and consistent power transfer.
- Lower lifecycle costs compared with lower-quality replacements.
Installation & Maintenance
Installation is straightforward for trained technicians. Always clean mating surfaces, inspect related seals and components, and follow torque specs. Regular inspection helps spot wear early and extend membrane life.
Why Choose Huilian?
Huilian Machine has over 15 years of focused experience as an OEM excavator parts supplier. Our team of technicians, R&D experts, and quality control professionals ensure each SB81TRF membrane meets strict standards. We offer global shipping and dedicated after-sales support to ensure your parts perform in the field.
Order & Support
For model compatibility, pricing or to request a quote, visit https://www.huilianmachine.com/ or contact our sales team. We welcome distributors and partners worldwide.
Product Images
Qualification Certificate
Certificate of Honor
GMP Certificate
Certificate of Honor
Question you may concern
What is your shipping and delivery time?
We offer fast and reliable global shipping. Delivery times vary depending on location and order size, but we strive to process and ship orders as quickly as possible.
How can I ensure I’m selecting the right part for my equipment?
Our expert team can assist you in finding the right part based on your machine model, specifications, and requirements. Contact us for personalized support.
Do you offer OEM and aftermarket parts?
Yes, we manufacture high-quality OEM parts and supply aftermarket parts from top brands such as NOK, Parker, SKF, and Hallite to ensure optimal performance.
What types of excavator parts do you offer?
We provide a wide range of high-quality excavator parts, including hydraulic breakers, chisels, seal kits, diaphragms, pistons, wear bushes, retainer bars, through bolts, side bolts, valves, and liners.
If you have any questions or concern, please contact us.

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