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Guchuan Piston for SB40 SB50 SB81 SB121 SB151 High Alloy Steel Excavator Hydraulic Rock Breaker Hammer

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Guchuan Piston for SB40 SB50 SB81 SB121 SB151 High Alloy Steel Excavator Hydraulic Rock Breaker Hammer

Brand Name:	SEWOOMIC
Model Number:	For SB40 SB50 SB81 SB121 SB151
MOQ:	10
Price:	Negotiable
Packaging Details:	Packed by pallet or poly wood case or as requested.
Payment Terms:	T/T,D/P,D/A,L/C

Detail Information

Product Description

Detail Information

Place of Origin:

Jiangsu, China

Certification:

ISO 9001:2015,CE

Video Outgoing-inspection:

Provided

Machinery Test Report:

Provided

Material:

616V, 20cr2ni4, GCr15

Warranty:

1 Year

Supply Ability:

100 Piece/Pieces per Month

Highlight:

sb81 hydraulic breaker parts

sb81 rock breaker seal kit

excavator hydraulic breaker parts

Product Description

Meta Description: Discover Guchuan’s high-performance pistons for hydraulic breakers (SB40/GCB60, SB50/GCB100, SB81/GCB220, SB121/GCB320, SB151/GCB400). Made from durable materials like 616V and Gr15, with 1-year warranty. Engineered for precision, durability, and peak breaker efficiency.

Premium Piston for Hydraulic Breakers: The Heart of Reliability for SB/GCB Series | Guchuan Machinery

Why the Piston is Critical to Your Breaker’s Performance
The piston operates under extreme pressure and impact within the breaker, transferring hydraulic energy into powerful striking force. A poorly designed or manufactured piston can lead to reduced efficiency, frequent downtime, and increased operational costs. Guchuan’s pistons are precision-engineered to ensure optimal energy transfer, smoother operation, and extended service life—keeping your equipment running efficiently in demanding applications such as mining, quarrying, demolition, and construction.

Product Overview: High-Performance Pistons for SB/GCB Series Breakers
Our pistons are specifically designed for compatibility with popular SB/GCB series models, ensuring perfect fit and superior performance. Each piston is manufactured with meticulous attention to detail, from material selection to heat treatment and finishing.

Guchuan Piston for SB40 SB50 SB81 SB121 SB151 High Alloy Steel Excavator Hydraulic Rock Breaker Hammer 0

Parameter

Light Weight Range Hydraulic Breaker
Model No.	Chisel Diameter (mm)	Excavator Weight (ton)	Body Weight (kg)	Working Flow Rate (L/min)	Working Pressure (Bar)	Impact Rate (bpm)
SB10/GCB40	40	0.8-2.5	73	15-30	90-120	800-1400
SB20/GCB45	45	1.2-3.0	100	20-40	90-120	700-1200
SB30/GCB50	53	2.5-4.5	120	20-50	90-120	500-900
SB40/GCB60	68	4.0-7.0	298	40-70	110-140	400-800
Medium Weight Range Hydraulic Breaker
SB43/GCB75	75	6.0-9.0	375	50-90	120-150	400-800
SB50/GCB100	100	11-16	890	80-110	150-170	350-700
SB81/GCB22O	140	18-26	1754	120-180	160-180	350-500
SB81A/GCB220	140	18-26	1773	120-180	160-180	350-500
HB20G/GCB200	135	18-25	1680	125-150	160-180	400-800
Large Weight Range Hydraulic Breaker
SB121/GCB320	155	28-35	2555	180-240	160-180	300-450
SB131/GCB350	165	35-43	3065	200-260	160-180	250-400
HB30G/GCB300	150	25-30	2305	160-190	160-180	350-700
GCB500	195	50-60	5350	245-290	230-250	100-150
GCB650	210	65-100	7200	290-340	250-270	90-130

Advanced Material Technology
We use premium materials selected for their strength, toughness, and wear resistance:

616V & 20cr2ni4: Offers excellent fatigue strength and impact toughness, ideal for high-stress, high-cycle operations

GCr15: Provides superior surface hardness and core durability, reducing wear and extending component life.
Our material selection ensures the piston withstands repeated high-impact loads without deformation or premature failure.

Engineering & Manufacturing Excellence
Guchuan’s pistons are produced using state-of-the-art CNC machining and controlled heat-treatment processes. This results in:

Optimal Hardness Profile: Balanced surface hardness and inner toughness to resist cracking.

Precision Dimensional Accuracy: Ensures perfect fit and smooth operation within the breaker cylinder.

Advanced Surface Finishing: Minimizes friction and reduces wear on seals and cylinder walls.

Guchuan Piston for SB40 SB50 SB81 SB121 SB151 High Alloy Steel Excavator Hydraulic Rock Breaker Hammer 1

Product Benefits & Advantages

1. Enhanced Durability: Resists wear, deformation, and fatigue even under continuous heavy-duty use

2. Improved Breaker Efficiency: Optimized design ensures maximum energy transfer for higher impact power and faster breaking.

3. Reduced Downtime: Longer service life means fewer replacements and lower maintenance costs.

4. Seamless Compatibility: Precision-engineered to match OEM specifications for a perfect fit and reliable performance.

5. Cost-Effective Solution: Superior quality extends breaker lifespan, providing better ROI over time.

Applications
These pistons are ideal for hydraulic breakers used in:

1. Rock breaking in mining and quarries

2. Demolition of concrete structures

3. Trenching and foundation work

4. Road construction and maintenance

Company Profile

Jiangsu Guchuan Machinery Co., Ltd. is a leading manufacturer based in Changzhou, Jiangsu Province, China. Established in 2010, our company occupies over 18,000 square meters and employs more than 120 skilled professionals. We specialize in the research, development, manufacturing, sales, and service of hydraulic breaker hammers and other Construction Attachments, offering comprehensive solutions for the construction and demolition industries.

Tags:

excavator breaker parts

breaker front cover

breaker through bolt

Products Details

Home > Products >

Hydraulic Breaker Parts

Guchuan Piston for SB40 SB50 SB81 SB121 SB151 High Alloy Steel Excavator Hydraulic Rock Breaker Hammer

All Category

Hydraulic Hammer

Box Type Hydraulic Breaker

Top Type Hydraulic Breaker

Side Type Hydraulic Breaker

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Excavator Hydraulic Shear

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Fixed Pulverizer

Excavator Crusher Bucket

Fully Hydraulic Breaker

Guchuan Piston for SB40 SB50 SB81 SB121 SB151 High Alloy Steel Excavator Hydraulic Rock Breaker Hammer

Brand Name:	SEWOOMIC
Model Number:	For SB40 SB50 SB81 SB121 SB151
MOQ:	10
Price:	Negotiable
Packaging Details:	Packed by pallet or poly wood case or as requested.
Payment Terms:	T/T,D/P,D/A,L/C

Detail Information

Product Description

Detail Information

Place of Origin:

Jiangsu, China

Brand Name:

SEWOOMIC

Certification:

ISO 9001:2015,CE

Model Number:

For SB40 SB50 SB81 SB121 SB151

Video Outgoing-inspection:

Provided

Machinery Test Report:

Provided

Material:

616V, 20cr2ni4, GCr15

Warranty:

1 Year

Minimum Order Quantity:

Price:

Negotiable

Packaging Details:

Packed by pallet or poly wood case or as requested.

Delivery Time:

20 Working Days

Payment Terms:

T/T,D/P,D/A,L/C

Supply Ability:

100 Piece/Pieces per Month

Highlight:

sb81 hydraulic breaker parts

sb81 rock breaker seal kit

excavator hydraulic breaker parts

Product Description

Premium Piston for Hydraulic Breakers: The Heart of Reliability for SB/GCB Series | Guchuan Machinery

Guchuan Piston for SB40 SB50 SB81 SB121 SB151 High Alloy Steel Excavator Hydraulic Rock Breaker Hammer 0

Parameter

Light Weight Range Hydraulic Breaker
Model No.	Chisel Diameter (mm)	Excavator Weight (ton)	Body Weight (kg)	Working Flow Rate (L/min)	Working Pressure (Bar)	Impact Rate (bpm)
SB10/GCB40	40	0.8-2.5	73	15-30	90-120	800-1400
SB20/GCB45	45	1.2-3.0	100	20-40	90-120	700-1200
SB30/GCB50	53	2.5-4.5	120	20-50	90-120	500-900
SB40/GCB60	68	4.0-7.0	298	40-70	110-140	400-800
Medium Weight Range Hydraulic Breaker
SB43/GCB75	75	6.0-9.0	375	50-90	120-150	400-800
SB50/GCB100	100	11-16	890	80-110	150-170	350-700
SB81/GCB22O	140	18-26	1754	120-180	160-180	350-500
SB81A/GCB220	140	18-26	1773	120-180	160-180	350-500
HB20G/GCB200	135	18-25	1680	125-150	160-180	400-800
Large Weight Range Hydraulic Breaker
SB121/GCB320	155	28-35	2555	180-240	160-180	300-450
SB131/GCB350	165	35-43	3065	200-260	160-180	250-400
HB30G/GCB300	150	25-30	2305	160-190	160-180	350-700
GCB500	195	50-60	5350	245-290	230-250	100-150
GCB650	210	65-100	7200	290-340	250-270	90-130

Advanced Material Technology
We use premium materials selected for their strength, toughness, and wear resistance:

616V & 20cr2ni4: Offers excellent fatigue strength and impact toughness, ideal for high-stress, high-cycle operations

Engineering & Manufacturing Excellence
Guchuan’s pistons are produced using state-of-the-art CNC machining and controlled heat-treatment processes. This results in:

Optimal Hardness Profile: Balanced surface hardness and inner toughness to resist cracking.

Precision Dimensional Accuracy: Ensures perfect fit and smooth operation within the breaker cylinder.

Advanced Surface Finishing: Minimizes friction and reduces wear on seals and cylinder walls.

Guchuan Piston for SB40 SB50 SB81 SB121 SB151 High Alloy Steel Excavator Hydraulic Rock Breaker Hammer 1

Product Benefits & Advantages

1. Enhanced Durability: Resists wear, deformation, and fatigue even under continuous heavy-duty use

2. Improved Breaker Efficiency: Optimized design ensures maximum energy transfer for higher impact power and faster breaking.

3. Reduced Downtime: Longer service life means fewer replacements and lower maintenance costs.

4. Seamless Compatibility: Precision-engineered to match OEM specifications for a perfect fit and reliable performance.

5. Cost-Effective Solution: Superior quality extends breaker lifespan, providing better ROI over time.

Applications
These pistons are ideal for hydraulic breakers used in:

1. Rock breaking in mining and quarries

2. Demolition of concrete structures

3. Trenching and foundation work

4. Road construction and maintenance

Company Profile

Tags: