Guangzhou Liantuo Machinery Trading Company
| Processing Technology | Precision Machining |
| Packaging Details | Export wooden box |
| Fitting Method | Direct Replacement Installation |
| Product Series | SB Series Breaker Parts |
| Product Name | SB121 Lower Cylinder |
| Application Field | Construction Machinery |
| Product Type | Hydraulic Breaker Core Part |
| Applicable Equipment | Hydraulic Breaker |
| Payment Terms | L/C,T/T,Western Union |
| Supply Ability | 1000pcs/month |
| Delivery Time | 1-7days |
| Brand Name | JHSOOSAN |
| Place of Origin | CHINA |
| Model Number | SB121 |
View Detail Information
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Product Specification
| Processing Technology | Precision Machining | Packaging Details | Export wooden box |
| Fitting Method | Direct Replacement Installation | Product Series | SB Series Breaker Parts |
| Product Name | SB121 Lower Cylinder | Application Field | Construction Machinery |
| Product Type | Hydraulic Breaker Core Part | Applicable Equipment | Hydraulic Breaker |
| Payment Terms | L/C,T/T,Western Union | Supply Ability | 1000pcs/month |
| Delivery Time | 1-7days | Brand Name | JHSOOSAN |
| Place of Origin | CHINA | Model Number | SB121 |
| High Light | Lower Hydraulic Breaker Cylinder ，SB121 Hydraulic Breaker Cylinder ，Excavator Rock Breaker Cylinder | ||
The SB121 Lower Cylinder (also known as the front head) is a critical core component of the SOOSAN SB121 hydraulic breaker, designed for 155mm diameter chisels and compatible with 30-ton class excavators. As the "front-end base" of the breaker's impact system, it houses the chisel, inner/outer bushings, and retaining pins, directly withstanding high-frequency impact loads and wear during operation, serving as the foundation for stable breaker performance.
| Compatible Model | SOOSAN SB121 Hydraulic Breaker |
|---|---|
| Compatible Chisel Diameter | 155mm |
| Product Weight | 355kg |
| Main Material | 40CrMo / 20CrNiMo Alloy Structural Steel |
| Reference Dimensions | 765×288×326mm |
| Compatible Excavator Weight | 28-35 Ton Class Excavators |
| Mounting Holes | OEM Standard CNC Machined, Zero Tolerance Fit |
| Heat Treatment | Quenched & Tempered + Surface Hardening, Hardness ≥HRC45 |
| Compatible Parts | Full Series of Bushings, Retaining Pins, Stop Pins & Chisels |
Different from ordinary thin-wall and low-density breaker accessories, this upgraded Suishan 155 breaker lower cylinder adopts thickened integral cylinder body and high-density casting process, with far better pressure resistance and impact resistance than ordinary parts. The standard SB121 hydraulic breaker lower cylinder features precise hole position calibration and smooth matching surface, which perfectly fits the internal sealing structure of the breaker and effectively avoids hydraulic oil leakage caused by poor fitting. As a durable excavator rock breaker cylinder, it undergoes professional stress relief treatment to eliminate internal material stress, preventing cylinder cracking and permanent deformation during long-term heavy breaking work. It maintains stable structural rigidity under frequent impact loads, reduces equipment failure rate, lowers daily maintenance costs, and improves overall construction working efficiency.
Every finished Suishan 155 breaker lower cylinder and SB121 hydraulic breaker lower cylinder undergoes strict pressure resistance test, impact fatigue test and tightness inspection before delivery to meet OEM quality standards. All installation dimensions, hole positions and structural parameters are fully consistent with original factory specifications. This premium excavator rock breaker cylinder features high compatibility with matched breaker models, supporting tool-free direct replacement without cutting, drilling or modification. With anti-cracking, anti-deformation and leak-proof advantages, it is the most cost-effective hydraulic breaker replacement part for long-term equipment maintenance.
Company Details
Business Type:
Manufacturer
Year Established:
2008
Total Annual:
20000000-25000000
Employee Number:
90~100
Ecer Certification：
Verified Supplier
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