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OEM Manufacturer Mini Excavator Attachment SB20 Hydraulic Rock Concrete Breaker Hammer
This HWX450/SB20 Hydraulic Rock & Concrete Breaker - a compact, high-performance attachment designed exclusively for mini excavators. Engineered for efficient rock breaking, concrete demolition, and light construction tasks, this durable hammer delivers reliable impact force and smooth operation, ideal for tight spaces and precision work.
Crafted with premium materials 42/40/20CrMo and precision manufacturing, it ensures long service life and strong compatibility with most mini excavator models.
As an OEM manufacturer, we offer flexible customization (branding, dimensions, performance tweaks) to meet your specific needs.
ISO/CE certified with a 12-month warranty, the SB20 Hydraulic breaker hammer combines ruggedness, portability, and cost-effectiveness - your go-to solution for mini excavator breaking applications.
The excavator rock breaker we supply: 
| Model | UNIT | HWX350 | HWX400 | HWX450 | HWX530 | HWX680 | HWX750 |
| Weight | Kg | 70 | 70 | 130 | 170 | 300 | 400 |
| Length | mm | 1000 | 1000 | 900 | 1000 | 1100 | 1300 |
| Working Pressure | kg/cm² | 90-120 | 90-120 | 110-140 | 110-140 | 110-160 | 110-160 |
| Impact Rate | bpm | 700-1200 | 700-1200 | 550-1000 | 500-900 | 500-800 | 500-700 |
| Oil hose dia. | inch | 3/8 | 3/8 | 1/2 | 1/2 | 1/2 | 1/2 |
| Chisel Dia. | mm | 35 | 40 | 45 | 53 | 68 | 75 |
| Excavator | ton | 0.8~1.2 | 1.0~2.0 | 2.5~4.5 | 3.0~5.5 | 4.0-7.0 | 6.0-8.0 |
Jinan Changhao Machinery Equipment Co., Ltd. has been established over 20 years located in Jinan China with about 10,000 square meters production plant. We are member of SGS group. We adhere to the management principles of "quality first, customer first and credit-based" since the establishment of the company.
We are professional and experienced manufacturer of hydraulic breaker hammers, hydraulic breaker hammer pipelines, their related spare parts and excavator accessories. The products we supply include hydraulic breaker, breaker pipeline kit, pipe clamp, ball valve, tee, pipe-to-line, foot valve, relief valve, solenoid valve, backup valve, one-way valve, multi-way valve, lock valve, plug, bracket, filter element, sensor, hammer hose, chisels, diaphragm, piston, piston ring, control valve, back cylinder, middle cylinder, front cylinder, front cover, inner bush, chisel pin, rod pin,through bolt, side bolt, accumulator, damping blocks, seal kit, etc.
We have exported our products to many countries. Our main markets are China, Asian countries, South Africa, Middle East, Europe, North America, South America etc.. Our products are warmly welcomed by customers with high quality and competitive price.
If you are interested in our products, please feel free to contact us. We will provide you with high-quality products, competitive prices and the best service.
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