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SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston
SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston
SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston
SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston
SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston
SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston
Specifications
MOQ :
1
Supply Ability :
1000pcs/month
Moving Type :
Excavator
Packaging Details :
Export wooden box
Power :
Hydraulic
Place And Origin :
Guangzhou,China
Temperature :
Normal
Packing :
wooden packing
Installationtype :
Bolt-on or pin-on
Model Number :
SB121
Price :
Negotiable
Service :
OEM service Avaliable
Delivery Time :
1-7 days
Brand Name :
MSGB
Place of Origin :
China
Payment Terms :
L/C,T/T,Western Union
Description
High hardness 42CrMo SB121 hydraulic breaker piston for Soosan SB121 excavator hammer, fully heat treated wear-resistant replacement spare parts.
Working Principle
  1. Return stroke: High-pressure hydraulic oil enters piston lower cavity, push piston upward to compress rear accumulator nitrogen, hydraulic energy converts into nitrogen compression potential energy for storage.
  2. Commutation stage: Piston moves to upper limit to trigger main reversing valve, hydraulic oil circuit instantly switch flow direction.
  3. Power stroke: High-pressure oil flows into piston upper cavity + expanded nitrogen releases stored energy, dual force push piston accelerate downward at high speed.
  4. Impact working: Piston bottom end face strike chisel instantly, mechanical impact force transfers to rock & concrete for breaking operation.
  5. Single blow finished, oil circuit reset, piston starts new round return stroke, cycle continuous striking work.
English Item Technical Data
Product Name SB121 Hydraulic Breaker Alloy Piston
Applicable Model Soosan SB121,SB121TS,SB121TR
Matching Excavator 28~35 Ton Heavy Excavator
Raw Material High-grade 42CrMo Alloy Steel
Surface Hardness HRC59~63
Core Hardness HRC40~44
Working Pressure 105~132MPa
Matching Clearance 0.05~0.07mm
Advanced Production Technology
  1. Raw steel incoming inspection: material spectrum analysis, tensile strength & metallographic detection, reject inferior alloy blank.
  2. High-temperature free forging to compact internal metal grain, remove internal material shrinkage cavity & loose defect.
  3. Rough turning + semi-finish turning via CNC machining center to reserve finishing allowance.
  4. Professional heat treatment: carburizing→high temp quenching→low temp temper→liquid nitrogen cryogenic treatment→stress relief temper.
  5. Precision cylindrical grinding + end face surface grinding to control size tolerance within OEM standard.
  6. Appearance full inspection one by one: screen crack, bump, dimensional out-of-tolerance defective products.
  7. Random loading impact fatigue test & clearance fitting test before finished storage.

SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston

FAQ
Q1: Which breaker fits this SB121 alloy piston?
A1: Specially matched for Soosan SB121,SB121TS,SB121TR hydraulic breaker for 28~35 ton excavator.
Q2: What raw material is your SB121 piston made from?
A2: Premium forged 42CrMo alloy steel with full professional heat treatment.
Q3: What causes original piston transverse crack during working?
A3: Inferior raw material, unqualified heat treatment, overfilled nitrogen pressure or long-time overload operation.
Q4: Can I buy single piece sample before bulk order?
A4: Sample purchase is available, big bulk order gets preferential tiered price and priority shipment.
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SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston

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Product Detail
MOQ :
1
Supply Ability :
1000pcs/month
Moving Type :
Excavator
Packaging Details :
Export wooden box
Power :
Hydraulic
Place And Origin :
Guangzhou,China
Contact Supplier
SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston
SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston
SB121 Hydraulic Breaker Piston OEM Alloy Hammer Piston

Guangzhou Liantuo Machinery Trading Company

Verified Supplier
1 Years
guangdong, guangzhou
Since 2008
Business Type :
Manufacturer
Main Products :
Excavator Hydraulic Breaker, Hydraulic Breaker Chisel, Hydraulic Breaker Parts
Total Annual :
20000000-25000000
Employee Number :
90~100
Certification Level :
Verified Supplier
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