Soosan SB121 Hydraulic Breaker Cylinder Block OEM 20CrMo Middle Hammer Cylinder
Product Details
| Features: | High Wear And Corrosion Resistance | Productname: | Hydraulic Breaker Parts |
|---|---|---|---|
| Oem: | Available, Acceptable OEM Service | Compatibility: | Suitable For Various Hydraulic Breakers |
| Color: | Metallic | Colar: | As The Picture |
| Corrosionresistance: | Yes, Treated Surface | Materail: | Imported |
| Size: | According Commodity | Payment: | Trade Assurance Payment |
| Material: | High-strength Steel | Shipment Terms: | Express, Air, Sea |
| Highlight |
Hydraulic Breaker Cylinder Block,Soosan SB121 Hydraulic Cylinder Block,20CrMo Middle Hammer Cylinder |
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Product Description
- Integral die forging blank forming, compact internal metal grain, no internal shrinkage cavity or sand hole, anti-deformation under long period alternating pressure.
- Inner cylinder wall high-frequency quenching treatment, 1.2~1.5mm thick wear-resistant hardened layer, resist piston reciprocating scratch abrasion.
- All internal oil passage CNC one-step drilling, smooth inner channel without burr, stable hydraulic oil circulation to avoid pressure loss.
- All through bolt installation hole, valve mounting hole precise tapping, consistent OEM hole spacing, direct assembly without field reaming.
- Stress relief tempering after finish machining, eliminate processing internal stress, effectively prevent cylinder body crack under cold-hot alternating construction environment.
- Black anti-rust finish on outer surface, anti-corrosion for muddy, damp open-air mine working condition.
- Independent solid wooden case packaging, avoid collision deformation during long-distance sea & land transportation.
- 20CrMo alloy steel bar incoming spectrum inspection, chemical composition & mechanical performance test to reject inferior recycled steel.
- High-temperature integral die forging, multiple forging compaction to optimize internal metal structure.
- Rough machining outer outline + pre-drill all oil passage and mounting holes.
- Fine boring inner cylinder bore to guarantee precision tolerance matching with piston.
- Inner wall high-frequency surface quenching + low temperature tempering to lock hardness and remove quenching stress.
- Full finish tapping for all thread holes, strict OEM dimension calibration.
- Full dimensional inspection + hydraulic pressure leakage test before finished storage.
- Core overhaul replacement spare for SB121 breaker when original cylinder inner bore scratch crack, oil channel blockage, body crack happen.
- Solve typical faults: continuous internal hydraulic leakage, insufficient impact force, cylinder overheating, frequent seal burnout.
- Regular heavy maintenance spare for 20~30t excavator equipped SB121 hammer in quarry mining, rock excavation, road demolition, municipal foundation construction.
- Bulk stocking core spare parts for global construction machinery spare parts wholesaler and local professional breaker repair factory.
- Adapt to heavy-load continuous working in granite mine, reinforced concrete breaking, frozen soil excavation harsh working scenarios.
Q1: Which hydraulic breaker fits this SB121 middle cylinder?
A1: Specially for Soosan SB121, SB121TS, SB121TR hydraulic breaker for 20~30 ton excavator.
Q2: What material is your SB121 cylinder made of?
A2: Integral forged 20CrMo chrome molybdenum alloy steel with inner wall surface quenching treatment.
Q3: Why original cylinder easily crack in mining work?
A3: Inferior cast iron blank without standard heat treatment, poor toughness against frequent impact load.
Q4: Can I buy one piece sample before bulk purchase?
A4: Sample purchase is available, big bulk order enjoys preferential price and priority delivery.
Product Highlights
OEM 20CrMo forged cylinder block for Soosan SB121 hydraulic breakers. Features high-frequency quenching for wear resistance, CNC-drilled oil passages, and stress-relief tempering. Ideal for quarry, demolition, and mining applications.
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