Heavy-Duty SB81 Side Bolt for Hydraulic Breaker Durable Steel Quarry Tunnel Engineering

SB121 Side Bolts Advantages:

High‑Strength Alloy Material 
This side bolt is forged from high‑strength alloy steel with professional heat treatment, delivering superior tensile and yield strength. It resists deformation and breakage under heavy impact and vibration, ensuring stable breaker operation and lowering downtime.

Excellent Shock & Wear Resistance
With enhanced surface treatment, the bolt withstands strong continuous impact and resists abrasion in harsh dusty, rocky environments. It prevents thread stripping and body cracking, making it highly reliable for mining, quarrying and heavy‑duty breaking work.
Precision Machining & Anti‑Loosening 
Precision CNC machining ensures tight thread fit and stable installation. The bolt stays firmly locked under strong vibration, avoiding loosening, equipment damage or oil leakage. It reduces frequent re‑tightening and improves construction safety and efficiency.
Perfect Fit & Easy Installation 
Manufactured to original SB81 breaker standards, this side bolt ensures direct interchangeability with OEM parts. It enables fast, tool‑free installation, supports quick maintenance, minimizes equipment downtime and keeps construction projects on schedule.
Long Life & High Cost‑Effectiveness
Premium material and strict craftsmanship give this bolt a much longer service life. It features stable performance, low failure rate and reduced maintenance cost, providing durable and economical fastening for demolition, road repair and tunneling.

• Professional Manufacturing Experience

Guangzhou Huilian has over 15 years of experience in producing hydraulic breaker parts. We focus on quality control and precision production, certified by ISO 9001. Our SB81 side bolts are made of high‑strength alloy steel with strict heat treatment, ensuring stable performance under heavy impact and vibration for mining, demolition and construction.

• Perfect Compatibility & OEM Standard

Our SB81 side bolts are manufactured according to original equipment dimensions. They fit all mainstream SB81 hydraulic breakers perfectly, no modification needed. High‑precision CNC machining ensures tight thread fit and strong anti‑loosening performance, effectively protecting the breaker body and extending service life.

• High Cost‑Performance & Stable Quality

We use premium 42CrMo material and advanced processing technology to make our side bolts wear‑resistant, shock‑proof and durable. Longer service life reduces replacement frequency and maintenance cost. Competitive factory price without compromising quality, ideal for long‑term engineering projects.

• Fast Delivery & Complete Stock

As a leading supplier in Guangzhou, we maintain sufficient inventory of hydraulic breaker side bolts and accessories. Orders can be processed and shipped within 1–7 working days. Flexible packaging and logistics solutions support global shipment, greatly shortening your waiting time and construction downtime.

• Professional After‑Sales Service

We provide comprehensive after‑sales support, including online technical guidance, installation help and warranty service. Our professional team understands global customer needs and offers timely solutions. Choosing Huilian means reliable quality, worry‑free purchase and long‑term trustworthy partnership.