20CrMo SB81 Inner Bush For Hydraulic Hammer Breaker Spare Parts Delivery Time 15-25 Days 170*114*140*40*181
20CrMo SB81 Inner Bush For Hydraulic Hammer Breaker Spare Parts Delivery Time 15-25 Days 170*114*140*40*181
Product Introduction
The 20CrMo Inner Bush is an essential high-quality component for the SB81 hydraulic hammer breaker, crafted to enhance performance in construction and demolition tasks. Made from advanced materials and engineered with precision, this inner bush offers exceptional durability and reliability. Its dimensions, 170×114×140×40×181 mm, ensure a perfect fit and seamless integration with your hydraulic hammer system. Whether you're working on construction sites or demolition projects, the 20CrMo Inner Bush is designed to meet the rigorous demands of your equipment, ensuring optimal functionality and longevity.
Parameter
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Light Weight Range Hydraulic Breaker
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Model No.
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Chisel diameter (mm)
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Excavator weight (ton)
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Body weight (kg)
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Working flow rate (L/min)
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Working pressure (Bar)
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Impact rate (bpm)
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SB10/GCB40
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40
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0.8-2.5
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73
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15-30
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90-120
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800-1400
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SB20/GCB45
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45
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1.2-3.0
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100
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20-40
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90-120
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700-1200
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SB30/GCB50
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53
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2.5-4.5
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120
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20-50
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90-120
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600-1100
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SB40/GCB60
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68
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4.0-7.0
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298
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40-70
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110-140
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500-900
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SB43/GCB75
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75
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6.0-9.0
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375
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50-90
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120-150
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400-800
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SB45/GCB85
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85
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7.0-14
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577
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60-100
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130-160
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400-800
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SB50/GCB100
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100
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11-16
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890
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80-110
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150-170
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350-700
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MS250/R75
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75
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3-8
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410
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60-85
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110-130
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520-1000
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Medium Weight Range Hydraulic Breaker
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SB70/GCB210
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135
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16-21
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1515
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100-150
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160-180
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350-600
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SB81/GCB22O
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140
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18-26
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1754
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120-180
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160-180
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350-500
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SB81A/GCB220
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140
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18-26
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1773
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120-180
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160-180
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350-500
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HB20G/GCB200
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135
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18-25
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1680
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125-150
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160-180
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400-800
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MB1500/NB1500
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135
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18-25
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1500
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120-155
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160-180
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400-800
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Large Weight Range Hydraulic Breaker
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SB121/GCB320
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155
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28-35
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2555
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180-240
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160-180
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300-450
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SB131/GCB350
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165
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35-43
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3065
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200-260
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160-180
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250-400
|
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SB151/GCB400
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175
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40-50
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3909
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210-290
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160-180
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200-350
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HB30G/GCB300
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150
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25-30
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2305
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160-190
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160-180
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350-700
|
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HB40G/GCB400
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160
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35-43
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2781
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190-250
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160-180
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250-400
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GCB500
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195
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50-60
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5350
|
245-290
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230-250
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100-150
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GCB550
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200
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50-65
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5500
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255-300
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240-260
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100-150
|
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GCB650
|
210
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65-100
|
7200
|
290-340
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250-270
|
90-130
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Key Features
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High-Quality Material:
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Made from 20CrMo alloy steel, known for its excellent strength, toughness, and wear resistance.
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Heat treatment processes enhance the hardness and durability of the inner bush, ensuring long-lasting performance.
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Precision Engineering:
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Manufactured using advanced CNC machining and precision grinding techniques to achieve tight tolerances and high accuracy.
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Ensures a perfect fit with the hydraulic hammer, reducing vibration and wear.
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Durability and Longevity:
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Designed to withstand the harsh conditions of heavy-duty applications, including frequent impacts and high-pressure environments.
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Reduces maintenance frequency and lowers overall operational costs.
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Applications
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Construction and Demolition:
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Ideal for breaking concrete structures, foundations, and reinforced concrete walls.
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Suitable for urban demolition projects where precision and efficiency are crucial.
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Mining Operations:
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Used for breaking rocks and minerals in underground and open-pit mining.
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Provides reliable performance in heavy-duty environments, ensuring continuous operation.
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Infrastructure Development:
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Used in projects involving the removal of old infrastructure, such as bridges, tunnels, and industrial plants.
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Suitable for secondary crushing and excavation tasks.
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Delivery Time
We guarantee a delivery time of 15-25 days from the date of payment, ensuring that you receive your coupler promptly and can start benefiting from increased efficiency on your construction projects.
Hydraulic Quick Hitch Coupler:
>>>T Type: >>>P Type:
Features:
1.Strong Safety Pin At Accurate
2.High abrasive front tiger mount design
3.Reinforced cylinder with imported oil seals.(Simrit German Brand) Positon.
Why choose us
Comprehensive Contract Manufacturing for Construction Equipment Parts
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Your Trusted Manufacturer and Exporter: We specialize in contract manufacturing for construction equipment parts, ensuring top-notch quality and reliability.
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Quality Assurance: Our products come with a 12-month warranty and are certified with CE and ISO 9001 standards, guaranteeing excellence and safety.
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Proven Expertise: With over a decade of experience, we have collaborated with industry leaders like Furukawa, , MSB, Daemo, YHB, and Everdigm. We excel in producing Asia-type hydraulic breakers.
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Rigorous Testing: Every product undergoes 100% testing before delivery, ensuring it meets the highest standards of performance and durability.
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Commitment to Quality: We live by the motto "Quality is our life," striving to deliver superior products that stand the test of time.
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Customer Satisfaction: Our goal is to exceed customer expectations. Regardless of project size, Guchuan dedicates all resources to ensure your project is completed to your satisfaction.
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24/7 After-Sales Support: Our dedicated after-sales service team is available online 24 hours a day. We also offer on-site visits to address any after-sales issues or customer complaints promptly.
PRODUCTION PROCESS
High-Quality Bolts and Components for Industrial Use
Bolts:
- Material: 42CrMo
- Grades Available: 10.9 and 12.9
- Processing: Heat treatment includes quenching and tempering, followed by surface treatment with options for natural color or black coating. These bolts are designed for high strength and durability.
Mounting Pins:
- Material: 42CrMo
- Processing: The process includes hardening, tempering, finish machining, mid-frequency induction hardening, and outside diameter grinding. The quenching depth is 3mm, ensuring a high surface hardness and exceptional durability.
Special Checked Pistons:
- Material: 20CrMo
- Processing: The pistons undergo thermal treatment with overall carburizing and quenching heat treatment. High precision checked grinding technology is used for processing, resulting in high surface precision and excellent finish. The hydraulic oil adheres well to the piston surface, forming an oil film that provides good lubricity and abrasion resistance, extending the piston's lifespan and maintaining impact force.
Inner Bushes:
- Materials: 42CrMo or 20CrMo
- Processing: The process includes forging blanks, finish machining, carburizing, quenching, and fine grinding. These bushes offer high product accuracy and are designed to withstand wear and tear.
Front Covers:
- Materials: 42CrMo or 20CrMo
- Processing: The covers are made from forging blanks, followed by finishing (finish machining), carburizing heat treatment, and assembly surface fine grinding. These products are wear-resistant and impact-resistant.
OEM & ODM_Customization:
- We offer our SEWOOMIC brand of hydraulic breakersin addition to these, we alsosupport OEM and ODM service
WARRANTY
- 12-18 months on all ourhydraulic breakers and6 months on spare parts
- The hammer's cylinder, front head, back head and piston have a one-year warranty, the outer shell has a six-month warranty, and the busing, through bolts, rod pin and other wear-tear parts have a three-month warranty.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.

