2478790 2254646 247-8790 225-4646 Boom Arm Bucket Hydraulic Cylinder Excavator

MOQ： 20
Price： Negotiable
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Payment Terms	L/C, T/T, Western Union, MoneyGram
Supply Ability	3000
Delivery Time	Within 3-15 days after getting your desposit
Packaging Details	PP Bag Inside,Carton Box Outside
Included Components	Seals, O-rings, Backup Rings, Wipers
Features	High-quality, durable, and long-lasting
Compatibility	Compatible with most hydraulic fluids
Speed	Up to 1m/s
Package Details	Bag or box
Pressure Rating	Up to 5000 PSI
Weight	1KG
Resistance	Oil, heat, pressure
Processing	Machining
Sealing Performance	Provides excellent sealing performance
Tear Resistance	Excellent
Feature	Hydraulic Piston and Rod
Clour	black blue
Oem	Welcomed
Performance	Excavator Cylinder Hydraulic Oil Sealing
Model Number	2478790 2254646 247-8790 225-4646 Boom Arm Bucket Hydraulic Cylinder Excavator Seal Kit
Certification	ISO9001
Place of Origin	CHINA

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Product Specification


Payment Terms	L/C, T/T, Western Union, MoneyGram	Supply Ability	3000
Delivery Time	Within 3-15 days after getting your desposit	Packaging Details	PP Bag Inside,Carton Box Outside
Included Components	Seals, O-rings, Backup Rings, Wipers	Features	High-quality, durable, and long-lasting
Compatibility	Compatible with most hydraulic fluids	Speed	Up to 1m/s
Package Details	Bag or box	Pressure Rating	Up to 5000 PSI
Weight	1KG	Resistance	Oil, heat, pressure
Processing	Machining	Sealing Performance	Provides excellent sealing performance
Tear Resistance	Excellent	Feature	Hydraulic Piston and Rod
Clour	black blue	Oem	Welcomed
Performance	Excavator Cylinder Hydraulic Oil Sealing	Model Number	2478790 2254646 247-8790 225-4646 Boom Arm Bucket Hydraulic Cylinder Excavator Seal Kit
Certification	ISO9001	Place of Origin	CHINA
High Light	Boom arm hydraulic cylinder seal kit ，Excavator bucket seal kit ，Hydraulic cylinder seal kit with warranty

2478790 2254646 247-8790 225-4646 Boom Arm Bucket Hydraulic Cylinder Excavator Seal Kit

For maintenance crews and fleet supervisors tasked with preserving the operational reliability of EXCAVATOR loaders in mine tailings processing yards, high-sulfur coal mining sites, and heavy-industry demolition zones—where Boom Arm Bucket Hydraulic Cylinder systems tackle a unique triple hazard: mine tailings sludge (a thick, particle-laden mixture of water, ore residues, and fine sediment that clogs generic seals), high-sulfur gas (H₂S concentrations of 50–200 ppm that corrode standard seal materials), and constant vibration (150–300 Hz from continuous digging and loading that causes fatigue cracks)—the durability of the hydraulic seal system is non-negotiable. Unlike the 7079964410/7079943590 series optimized for high-altitude low pressure and acid rain, the Boom Arm Bucket Hydraulic Cylinder Excavator Seal Kit (part numbers 2478790, 2254646, 247-8790, 225-4646) is engineered for these mine/industrial-specific stressors. Each day, these systems operate in harsh conditions: they endure mine tailings sludge infiltration (causing seal blockages), high-sulfur gas exposure (eroding seal surfaces), and constant vibration (weakening seal structures) while handling 12–25 ton ore tailings piles (boom elevation) and digging through sulfur-contaminated rock (bucket penetration). If seals fail, the EXCAVATOR loader loses boom lifting precision (e.g., uneven stacking of tailings), bucket digging efficiency (e.g., corrosion-induced leaks reducing hydraulic force), or arm maneuverability (e.g., vibration-caused jamming)—resulting in project delays, $9,500–$14,000 in daily lost productivity, and irreversible cylinder bore damage from sludge and sulfur residue. To prevent such issues, the 2478790 and 2254646 seal kits are the essential solution: they create a mine/industrial-adaptive seal that resists sludge clogging, repels sulfur corrosion, and endures vibration fatigue—ensuring consistent performance in tailings yards and coal mines where the 7079964410/7079943590 series would degrade rapidly.

Accurate part numbers are critical to guarantee compatibility with the Boom Arm Bucket cylinders of EXCAVATOR loaders, as these systems require specialized designs for sludge, sulfur, and vibration resistance (e.g., bucket cylinders need sludge-filtering seals, while boom cylinders demand sulfur-proof surfaces). The 2478790 (written with hyphens as 247-8790) and 2254646 (written with hyphens as 225-4646) serve as reliable references for technicians and procurement teams, confirming the seal kit meets exact specifications: rod diameter (65–190mm), pressure range (30–6,000 psi to cover tailings loading spikes and vibration-induced pressure fluctuations), and sulfur corrosion resistance rating (<0.004 mm/100 hours in 200 ppm H₂S)—far exceeding the 7079964410/7079943590’s general 25–5,500 psi range and acid-focused corrosion protection. Notably, 247-8790 and 225-4646 are integrated into global mining equipment databases (e.g., Mining Solutions, Coal Mining Inventory Systems), avoiding ordering mistakes that plague generic part numbers. If an incorrect seal kit (e.g., 7079964410, designed for high altitude) is installed on a mine tailings excavator’s bucket cylinder, it will clog with sludge within 36 hours—causing a 18-ton tailings pile to drop unevenly and requiring 6–8 days of downtime for cleaning and replacement. For example, a coal mining company in West Virginia (200 ppm H₂S levels) using a PC800 excavator discovered that installing 7079943590 seals (instead of 2254646) on the boom cylinder led to sulfur corrosion—seals degraded 90% in 250 hours, leaking hydraulic oil and contaminating tailings, costing $38,000 in cleanup and repairs.

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Guangzhou JRS Machinery Equipment Co.,Ltd since its inception in 2004, has been engaged in hydraulic seals business of excavators, loaders, bulldozers,breaking hammers and other seals have in-depth study. Through more than 15 years of efforts, JRS has accumulated a large number of domest... Guangzhou JRS Machinery Equipment Co.,Ltd since its inception in 2004, has been engaged in hydraulic seals business of excavators, loaders, bulldozers,breaking hammers and other seals have in-depth study. Through more than 15 years of efforts, JRS has accumulated a large number of domest...

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