Huilian SB81 Diaphragm — Durable Excavator Breaker Replacement

The Huilian SB81 diaphragm is an OEM-quality replacement for hydraulic breakers, offering superior sealing, long life, and easy installation. Manufactured by Huilian since 2005, it delivers reliable performance and global support.
Brand Name
Huilian
Part Name
Hydraulic Breaker Diaphragm
Suitable for Breaker Brand
SOOSAN
Breaker Model
SB81 SB81A SB81TS-P SB81TSP SQ80 SB81TR-F SB81TRF
Related Parts
Seal Kit, Piston, Piston Ring, Accumulator, Sleeve Valve, Chisel, Back Head, Stop Pin, Rod Pin
Material
HNBR
Tool
140
Hardness
70degree-85degree
Temperature
-35~135°C
Pressure
85-125Mpa
Position
Hydraulic Breaker Accumulator System
Certification
ISO9001
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Product Description

Product Overview: Huilian SB81 Diaphragm

The Huilian SB81 diaphragm is a high-quality replacement part designed for hydraulic breakers and excavator attachments. Made by Huilian Machine — an established OEM supplier since 2005 — the SB81 delivers reliable sealing, consistent performance, and extended service life for demanding jobsite conditions.

Why Choose the SB81 Diaphragm?

Durable Material & Precise Molding

Manufactured using High Quality rubber compounds and advanced molding techniques, the SB81 diaphragm resists wear, oil, and temperature variations. Precision production ensures a consistent shape and thickness for an accurate fit and dependable operation.

OEM Fit & Easy Installation

Designed as a direct replacement, the SB81 fits common breaker models without modification. Its straightforward installation minimizes downtime, so your machine returns to work faster.

Reliable Performance & Long Service Life

Thanks to careful quality control and testing by Huilian’s experienced R&D and QC teams, the SB81 offers stable sealing and fewer failures over time — lowering maintenance costs and increasing equipment uptime.

Compatibility & Applications

The SB81 diaphragm is suitable for many hydraulic breaker and excavator applications. It works well for maintenance shops, rental fleets, and contractors who need a dependable replacement that matches OEM specifications.

About Huilian

Founded in 2005, Guangzhou Huilian Machinery Co., Ltd. is a leading manufacturer and exporter of excavator breaker parts. Our product range includes hammers, chisels, seals, diaphragms, pistons, wear bushes, and more. We export to over 90 countries and partner with distributors worldwide.

Order & Support

Choose the Huilian SB81 diaphragm for a balanced mix of quality, value, and support. Visit our website at https://www.huilianmachine.com/ to request a quote, check stock, or contact our sales team. Huilian also offers fast shipping, warranty options, and after-sales support to keep your operations moving.

Buy now — get a reliable SB81 diaphragm that keeps your breaker performing at its best.

Picture Show

  • SB81 autox diaphragm
  • SB81 bks diaphgam
  • SB81 bks membrane

Our Certifications

  • new z

    Certificate of Honor

  • Certificate-1

    Certificate of Honor

  • CE

    CE Certificate

Q&A

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.

Are your parts compatible with all excavator brands?

Yes, our parts are designed to be compatible with major brands like Komatsu, Caterpillar, Hitachi, Hyundai, Doosan, JCB, Kobelco, Sany, and many more.

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.

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.

If you have any other questions, please write email to us or call us , we will reply you ASAP.

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Guangzhou Huilian Machines Co., Ltd
1st Floor, No. 389, Zhongshan Avenue East, Huangpu District, Guangzhou, Guangdong, China.
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