logo
Send Message
Home ProductsHydraulic Cylinder Seal Kits

90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit

I'm Online Chat Now

90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit

90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit
90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit 90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit 90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit

Large Image :  90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit

Product Details:
Place of Origin: CHINA
Certification: ISO9001
Model Number: 90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit
Payment & Shipping Terms:
Minimum Order Quantity: 100
Price: Negotiable
Packaging Details: PP Bag Inside,Carton Box Outside
Delivery Time: Within 3-15 days after getting your desposit
Payment Terms: L/C, T/T, Western Union, MoneyGram
Supply Ability: 3000

90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit

Description
Country Of Origin: China Durability: High Wear Resistance And Long Service Life
Key Word: Rubber O Ring Pressure Resistance: Yes
Keyword: Cylinder Seal Kit Style: Hydraulic,Mechanical Seal
Part Name: Hydrauilc Rock Breaker Spare Parts Odm: Available
Rod Seal Type: Dark Blue Skf Brand Shipping Method: By Sea, By Air, By Express
Temperaturerange: -30°C To 120°C (-22°F To 248°F) Compatible Equipment Make: Universal
Sealtype: Rod Seals, Piston Seals, Wiper Seals, Wear Rings, O-rings Includes: O-rings, Backup Rings, And Seals
Transport Package: Carton Packing
Highlight:

NBR ring seal cylinder loader

,

excavator hydraulic seal kit

,

black NBR excavator seals

90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit

For excavator and loader operators seeking a versatile, oil-resistant, and cost-effective hydraulic seal solution—one that outperforms generic NBR seals while fitting 99% of loader/excavator cylinders (lift, tilt, steering, boom, arm, bucket)—the 90409400 (and its hyphenated equivalent 904-09400) Black NBR Ring Seal Cylinder Loader Excavator Seal Kit stands as a game-changer. Unlike previous specialized kits (focused on extreme impact, chemicals, or temperature) that target narrow use cases, the 90409400 kit is engineered for the "everyday extreme" challenges of mixed heavy-duty operations: hydraulic oil degradation (mineral, synthetic, and biodegradable oils), temperature fluctuations (-20°C to 120°C), and moderate debris exposure (0.5–2mm particles)—stresses that plague generic NBR seals (which harden, swell, or leak within 800 hours). The star of this kit is its Black NBR Ring—a carbon-black reinforced nitrile butadiene rubber (NBR) compound exclusive to 90409400 and 904-09400, designed to retain 95% of its elasticity across 10,000+ pressure cycles and resist 99.9% of oil-induced swelling—solving the "one-size-fits-none" problem of generic seals and the over-specialization of boom/arm/bucket-focused kits. Whether servicing a loader’s lift cylinder, an excavator’s steering system, or a bucket cylinder in light mining, 90409400 delivers consistent performance, with part numbers that guarantee compatibility and eliminate the risk of mismatched components.
At the heart of the 90409400 kit is its proprietary Black NBR Ring—a material upgrade that redefines NBR performance. Generic NBR seals use low-grade rubber with minimal reinforcement, leading to 15–25% swelling in mineral oil and 30% hardening at -10°C; in contrast, the 90409400 Black NBR Ring blends high-purity NBR with 12% carbon-black particles (enhancing tensile strength by 60%), 5% zinc oxide (boosting oil resistance), and 3% sulfur cross-linkers (improving temperature stability). This formulation allows 90409400 to withstand -20°C to 120°C (far beyond generic NBR’s -10°C to 100°C range) and resist swelling to in mineral, synthetic, and biodegradable hydraulic oils—compared to 18% swelling for generic NBR and 8% for standard reinforced NBR. A construction company using 904-09400 in their mixed fleet reported that seals lasted 6,200 hours in loader lift cylinders, while generic NBR seals needed replacement every 750 hours due to oil-induced swelling. The Black NBR Ring’s carbon-black reinforcement also adds abrasion resistance: in tests with 1mm debris, 90409400 showed only 0.01mm wear after 2,000 cycles—compared to 0.15mm for generic NBR and 0.08mm for non-reinforced specialized seals. This versatility makes 90409400 the go-to kit for fleets with mixed equipment (loaders and excavators) and varied tasks (construction, agriculture, light mining), eliminating the need to stock multiple specialized kits.

90409400 904-09400 Black NBR Ring Seal Cylinder Loader Excavator Seal Kit 0

Contact Details
Jiangsu Runfeng Jiu Seals Co., Ltd.

Contact Person: SUNNY

Tel: 86 18605253464

Send your inquiry directly to us (0 / 3000)