SB121 Hydraulic Breaker Diaphragm Rubber Cup Accumulator Seal
Product Details
| Standard: | Standard And Customize | Performance: | Hydraulic Oil Sealing |
|---|---|---|---|
| Packagecontents: | Complete Set Of Seals For One Hydraulic Breaker | Temperature Resistance: | Yes |
| Applicateeeeeeeion: | Hydraulic Breaker Rock Hammer | Matreial: | Rubber |
| Sealtypesincluded: | Piston Seals, Cylinder Seals, Rod Seals, And O-rings | Durability: | High Wear And Tear Resistance |
| Stock: | In Stock | Material: | High-quality Rubber And Polyurethane |
| Oem: | Welcome | Port: | Guangzhou |
| Highlight |
SB121 Hydraulic Breaker Diaphragm,Hydraulic Breaker Diaphragm Rubber Cup,SB121 Accumulator Seal |
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Product Description
Our high-performance SB121 hydraulic breaker rubber cup diaphragm, standard OEM-grade Soosan SB121 accumulator seal, core functional SB121 nitrogen isolation rubber cup, essential aftermarket excavator breaker sealing spare part, universal SB121 OEM replacement membrane and rugged heavy-duty hydraulic hammer rubber seal, is specially engineered for Soosan SB121, SB121TS, SB121TR full-series hydraulic rock breakers matching 28~35 ton heavy excavators. Manufactured from modified high-performance HNBR hydrogenated nitrile rubber via one-piece seamless hot vulcanization, this bowl-shaped sealing component installs inside rear-head accumulator chamber to completely separate high-pressure nitrogen and hydraulic oil, store instant striking potential energy and stabilize continuous hammer impact power. Strictly replicated per original OEM mold size for plug-and-play replacement, effectively fix common equipment faults including nitrogen leakage, internal oil-gas mixing, insufficient striking force and frequent repeated nitrogen refilling caused by aging, crack or rupture of original cup seal. Constant in-stock supply for global quarry operators, demolition contractors, machinery repair garages and international construction machinery spare parts distributors worldwide.
- Incoming raw rubber inspection: chemical composition, tensile strength & compression set testing, reject inferior recycled rubber raw material.
- Multi-stage closed internal mixing: evenly disperse anti-aging, oil-resistant, anti-tear functional additives inside rubber base.
- OEM dedicated precision mold constant-temperature constant-pressure seamless hot compression vulcanization molding.
- Post-vulcanization constant-temperature curing standing to release rubber internal forming residual stress.
- Full manual appearance inspection one by one, screen out products with pinhole, hidden crack, irregular deformation.
- Random sampling inspection: inflation air tightness test + reciprocating expansion fatigue durability test.
- Qualified finished product surface dedusting, independent sealed packaging into warehouse.
- Direct replacement spare for failed original cup diaphragm during SB121 hydraulic breaker overhaul maintenance.
- Fix typical breakdowns: slow striking frequency, weak impact force, frequent nitrogen inflation, rear head abnormal oil leakage.
- Regular preventive spare parts for 20~30t excavator fleets equipped with SB121 hammer in quarry mining, highway demolition, municipal reconstruction projects.
- Bulk stocking consumable item for global construction machinery spare parts wholesalers and local excavator repair shops.
- Suitable for hard rock mining, concrete demolition, foundation breaking, terrain leveling heavy construction scenarios.
Q1: What raw material is used for this SB121 accumulator seal?
A1: Premium modified HNBR hydrogenated nitrile rubber with anti-oil & high temperature resistant formula.
Q2: Why does original rubber cup leak nitrogen in daily work?
A2: Excessive pre-charged nitrogen pressure, long-time high-temperature aging or inferior raw material causing inner crack & pinhole leakage.
Q3: Can I purchase one piece sample before bulk wholesale?
A3: Single sample is available, large quantity order gets tiered preferential price and priority delivery.
Product Highlights
OEM-grade HNBR SB121 hydraulic breaker rubber cup diaphragm. High durability, oil & temperature resistance. Fixes nitrogen leaks, stabilizes impact power. In stock, custom options available.
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