SB131 Hydraulic Breaker for CAT 336 & PC360 | Integrated AGS System

Premium SB131/HWX1650 hydraulic demolition hammer with auto grease lubrication system – engineered for 33-28 ton excavators (Cat 336, Komatsu PC360, Volvo EC360 & more). The integrated auto grease system eliminates manual lubrication, reduces downtime, and extends the hammer’s service life by preventing wear on bushings and chisels. Built with high-strength steel and a robust hydraulic circuit, this demolition hammer delivers exceptional impact force for heavy-duty tasks like concrete breaking, rock excavation, and demolition projects. Compatible with major excavator brands, it ensures easy installation and reliable performance in harsh job sites. Manufactured by Jinan Changhao – your trusted supplier for industrial-grade hydraulic attachments. Contact us for a custom quote or technical support!

Compatible Excavator Models (Verified Fitment):

• Caterpillar: CAT 330, 336D/D2, 336E, 340
• Komatsu: PC300-7/8, PC350-8, PC360-10
• Doosan: DX300LC, DX340, DX380LC-9C
• Volvo: EC300D, EC330B, EC350E, EC380D/E
• Sany: SY335H, SY365H, SY375H
• Hitachi: ZX330, ZX350LC-5G, ZX360

Breaking Capacity: Capable of processing 30-45 cubic meters of hard granite (200MPa+) per hour.
Service Interval: Extends bushing replacement intervals from ~400 hours (manual) to over 1,200 hours with continuous AGS lubrication.
Thermal Management: Integrated cooling fins on the power cell reduce hydraulic oil temperature by 10-15% during sustained demolition.

Why standard greasing fails on 33-38ton hammers? In high-production mining, manual greasing once or twice a day is insufficient. The 165mm chisel of the SB131 generates surface temperatures exceeding 200°C, causing grease to thin and run out. Our integrated Auto Grease System (AGS) provides continuous, metered lubrication directly to the inner and outer bushings during operation. This prevents “dry striking” and reduces frictional wear by 40%, potentially saving $5,000+ in front-head repair costs over a 2,000-hour service interval.

CAT 336 & PC360 Setting Guide:
Hydraulic Flow: Set the excavator monitor to 210 – 230 bar for optimal impact energy without cavitation.
Relief Pressure: Ensure the auxiliary circuit relief is set to 220 Bar.
AGS Priming: When installing for the first time, manually purge the grease lines to ensure zero air pockets before high-frequency operation.

Customer feedback of heavy duty rock breaker for mining operations. The hydraulic breaker is used in volvo EC360. The customer said the hydraulic breaker with automatic grease system reduced his workload, and that it was a perfect match for his construction machinery project. He thanked our technical engineers.

SB131 hydraulic hammer with auto grease system

SB131 hydraulic breaker with auto grease lubrication system

1. Auto Grease Lubrication System

• Automatic, continuous lubrication eliminates manual greasing, saving labor costs and reducing downtime.
• Ensures consistent lubrication for bushings, chisels, and internal components, significantly extending the hammer’s service life and minimizing wear.

auto grease lubrication system

2. Heavy-Duty Performance

• Engineered for 33-38 ton excavators (e.g., Cat 336, Komatsu PC360, Volvo EC330B), delivering exceptional impact force and striking frequency for tough tasks like concrete demolition, rock breaking, and quarry excavation.
• Robust hydraulic circuit and high-strength steel construction withstand extreme job site conditions, ensuring reliable operation under heavy load.

3. Universal Compatibility

• Seamlessly compatible with major excavator brands (Caterpillar, Komatsu, Volvo, Hyundai, Kobelco, etc.) in the 33-38 ton class, enabling easy installation without complex modifications.
• Standardized mounting design matches most excavator hydraulic systems, reducing setup time and operational complexity.

40 ton excavator jack hammer

SB131 box type rock breaker

4. User-Friendly & Low Maintenance

• Intuitive auto-grease system with visual inspection window allows easy monitoring of lubricant levels, simplifying maintenance.
• Dust-proof and corrosion-resistant design protects critical components from harsh environments (dust, moisture, debris), lowering maintenance frequency and costs.

5. Energy Efficiency & Cost-Effectiveness

• Optimized hydraulic design maximizes energy transfer, enhancing breaking efficiency while reducing fuel consumption of the excavator.
• Industrial-grade components and factory-direct manufacturing (Jinan Changhao Machinery) ensure superior quality at a competitive price, offering long-term cost savings.

Parameters of HWX1650/SB131 hydraulic breaker

Model	UNIT	HWX1650
Weight	Kg	3100
Length	mm	3500
Working Pressure	bar	210-230
Impact Rate	bpm	150-300
Oil hose dia.	inch	1 1/4
Chisel Dia.	mm	165
Excavator	ton	33-38

Crucial Installation Checklist: Los 3 Parámetros de Oro To ensure a 100% plug-and-play installation for your SB131 breaker, our engineering team requires verification of the following “Golden Three Parameters” from your excavator’s arm:

Pin Diameter (A): The precise diameter of the mounting pins (e.g., 100mm for CAT 336).
Pin Center Distance (B): The distance between the centers of the two mounting holes on the dipper arm (e.g., 485mm).
Dipper Width / Ear Width (C): The internal width between the excavator arm’s mounting brackets (e.g., 430mm).