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521-7796 5217796 Heavy Duty Hydraulic Cylinder Seal Kit for Mining Excavators 990K 990H 990

Name: 521-7796 5217796 Heavy Duty Hydraulic Cylinder Seal Kit for Mining Excavators 990K 990H 990
Brand: Guangzhou Opal Machinery Parts Operation Department
SKU: 521-7796
Price: 7.00 USD
Availability: InStock

제품 세부정보

원래 장소: 중국

브랜드 이름: OUB

인증: ISO9001

모델 번호: 521-7796

결제 및 배송 조건

최소 주문 수량: 10

가격: 협상 가능

포장 세부 사항: 내부 PP 백. outer는 필름 포장 된 상자입니다.

배달 시간: 탈수를받은 후 5-15 일 이내에

지불 조건: L/C,D/A,D/P,T/T,웨스턴 유니온

공급 능력: 1000PCS

최고 가격 받기

제품 세부정보

제품 설명

제품 세부정보

강조하다: 
                                                                                                                                                                                                                                                Heavy Duty Hydraulic Cylinder Seal Kit, Mining Excavator 990K Seal Kit, 990H Hydraulic Cylinder Seal Kit
                              

부품 번호 ::	521-7796	부품 이름::	씰 키트
모델:	990K 990H 990	기계:	휠 로더
재료:	NBR	색상:	블랙, 브라운, 화이트

부품 번호 ::	521-7796
부품 이름::	씰 키트
모델:	990K 990H 990
기계:	휠 로더
재료:	NBR
색상:	블랙, 브라운, 화이트

제품 설명

1. Quick Details of seal 521-7796:

Part NO.	521-7796
Machine	wheel loader
Size	OEM
Material	NBR
Oil seal type	SEAL KIT

2. 521-7796 picture:

521-7796 5217796 Heavy Duty Hydraulic Cylinder Seal Kit for Mining Excavators 990K 990H 990 0
3. Service part number :

PART NO.	PART NO.	Part NO.
1J6474	2K2961	3K-0360
5F3999	1411774	6V-9746
1S0668	2R0098	3J-1907
6H3997	6V5059	6V-8397
1790464	8C5176	3D-2824
277-9940	8C5175	5K-9090
152-3968	1H7339	5P-2235
326-7289	8T9528	1T-0132
6V5393	5K5129	9X-7735
5P4076	6J3134	194-9584

4. FAQ

Q: Please describe the natural color and surface texture of each part without any artificial coloring or coating.
A: Abrasion-proof NBR components are deep jet black with a fine matte texture and firm elasticity. High-durability PU seals present warm golden yellow with an ultra-dense solid surface. Fly ash filled PTFE rings are light gray, with subtle tiny particle texture on the surface. Reinforced non-woven fabric guide rings are natural dark beige, featuring obvious fluffy fibrous texture.

Q: What outstanding performance does high-durability PU deliver in mining hydraulic cylinders?
A: This PU material is optimized for long-cycle heavy-load operation. When the excavator digs hard rock and loads massive ore continuously, it closely fits reciprocating parts inside the cylinder. It maintains stable sealing performance under persistent high pressure, strong friction and occasional rigid impact, and is not easy to wear or deform even after long hours of non-stop work in mining areas.

Q: What is the functional principle of fly ash filled PTFE when matched with main PU seals?
A: Fly ash filler greatly improves the overall hardness and anti-extrusion ability of PTFE. It can fully fill the narrow assembly gaps of piston grooves. When the bucket hits hard rock and creates extreme instantaneous pressure peaks, this material disperses pressure evenly and protects the thin sealing lip of PU from being squeezed, torn or permanently deformed, extending the whole sealing system’s service life.

Q: In what ways is abrasion-proof NBR superior to ordinary rubber materials?
A: Apart from standard oil resistance, this upgraded NBR adds strong anti-grit and anti-wear properties. In dry mining environments filled with rock dust and fine gravel, it will not be scratched or worn easily. It also resists long-term aging under strong sunlight and dry wind, keeping stable elasticity and sealing tightness for a long time.

Q: Where are the abrasion-proof NBR sealing parts mainly installed on the hydraulic cylinder?
A: These rubber parts are mainly assembled on stationary connection positions, including cylinder end cover flanges, hydraulic pipeline joints and fixed sealing gaskets. These areas are exposed to rock dust, hydraulic oil and dry air all day long, which can fully display the material’s excellent comprehensive performance.

Q: What practical value can reinforced non-woven fabric guide rings bring during piston movement?
A: Different from traditional woven rings, the reinforced non-woven structure has better shock absorption and uniform load distribution. It offsets the lateral force generated by uneven ore resistance, keeps the piston moving along the central axis steadily, and greatly reduces metal wear between piston and cylinder wall, making the cylinder run more smoothly under heavy mining loads.

Q: Are all sealing accessories produced strictly according to OEM original size specifications?
A: Every seal, backup ring and guide ring is manufactured in strict accordance with original factory drawings and groove dimensions. All parts achieve precise one-to-one matching, so maintenance personnel do not need to carry out any cutting, drilling or structural modification during on-site replacement.

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콘택트 렌즈: Mr. Vivian

전화: 86-135-33728134

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521-7796 5217796 Heavy Duty Hydraulic Cylinder Seal Kit for Mining Excavators 990K 990H 990

Heavy Duty Hydraulic Cylinder Seal Kit

Mining Excavator 990K Seal Kit

990H Hydraulic Cylinder Seal Kit

BUCKET 실린더 밀폐 키트 2478998,

ARM 실린더 밀폐 키트 CTC,

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수력 봉지 키트

차단기 씰 키트

펌프 오일 밀봉

피스톤 씰 링

피스톤 막대 밀폐

크랜크 샤프트 오일 밀폐

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