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Trang chủ > các sản phẩm > Bộ dụng cụ làm kín xi lanh > 394-4402 3944402 All-Terrain Hydraulic Cylinder Repair Seal Kit for Large Wheel Loaders 990K

394-4402 3944402 All-Terrain Hydraulic Cylinder Repair Seal Kit for Large Wheel Loaders 990K

Chi tiết sản phẩm

Nguồn gốc: Trung Quốc

Hàng hiệu: OUB

Chứng nhận: ISO9001

Số mô hình: 394-4402

Điều khoản thanh toán và vận chuyển

Số lượng đặt hàng tối thiểu: 10

Giá bán: Có thể thương lượng

chi tiết đóng gói: Túi PP bên trong.

Thời gian giao hàng: Trong vòng 5-15 ngày sau khi nhận được Desposit của bạn

Điều khoản thanh toán: L/C,D/A,D/P,T/T,Western Union

Khả năng cung cấp: 1000 CÁI

Nhận được giá tốt nhất
Chi tiết sản phẩm
Làm nổi bật:

All-Terrain Hydraulic Cylinder Seal Kit

,

Wheel Loader 990K Repair Seal Kit

,

Large Hydraulic Cylinder Seal Kit

Phần không .::
394-4402
Tên một phần::
Bộ con dấu
Người mẫu:
990K
Máy móc:
Trình tải bánh xe
Vật liệu:
NBR
Màu sắc:
Đen, nâu, trắng
Phần không .::
394-4402
Tên một phần::
Bộ con dấu
Người mẫu:
990K
Máy móc:
Trình tải bánh xe
Vật liệu:
NBR
Màu sắc:
Đen, nâu, trắng
Mô tả sản phẩm

1. Quick Details of  seal 394-4402:

Part NO. 394-4402
Machine wheel loader
Size OEM
Material NBR
Oil seal type

SEAL KIT

 

2.  394-4402 picture:

394-4402 3944402 All-Terrain Hydraulic Cylinder Repair Seal Kit for Large Wheel Loaders 990K 0
3. Service part number :

PART NO. PART NO. Part NO.
567-1748 2225824 2D-6533
1410749 3052215 8M-4389
1453576 2074710 9H-3360
2314707 6V5326 6F-8146
4S5924 6E4240 3D-8422
5494308 5673612 6V-1196
5673714 5673611 5P-4889
951701 1401800 032-8970
2100835 2339744 325-3780
5671750 1598010 4F-8824
5671748 8T7000 2S8439
161-9835 5P5874 3511768

 

4. FAQ

Q: Please describe the natural color, surface texture and structural style of all components in the kit without any extra coating or pigment.
A: Components made of low-temperature resistant NBR present uniform jet black, with a soft velvety surface and fine grain texture, and they can be bent freely without permanent deformation. Reinforced polyurethane seals are dark amber, featuring a dense and solid texture with smooth finished edges. Glass-filled PTFE backup rings are light gray, and tiny glass particle textures can be observed on the flat surface. The fabric guide rings are natural russet brown, with neat woven textures running across the whole surface. All parts adopt standard industrial sealing profiles, including U-type, square-cut and circular styles, and every edge is precisely machined without burrs or defects.

Q: What are the unique advantages of low-temperature resistant NBR compared with conventional rubber materials in actual use?
A: Different from ordinary rubber that tends to harden and lose flexibility in cold weather, this customized NBR formula is enhanced with low-temperature resistance technology. It can maintain excellent sealing elasticity when the ambient temperature drops sharply, and will not crack or shrink due to cold brittleness. Meanwhile, it inherits excellent oil resistance and anti-aging properties. After long-term immersion in hydraulic oil and exposure to alternating wind, frost and sunlight on open construction sites, its overall performance stays stable, fully adapting to all-weather operation in regions with obvious seasonal temperature differences.

Q: In what working scenarios do reinforced polyurethane seals show their greatest value?
A: As the core dynamic sealing parts, polyurethane seals bear the longest running cycles and the largest working loads. When the loader lifts heavy bulk materials, stretches and retracts the boom continuously, or swings the bucket to complete loading and dumping actions, these seals closely fit the moving rod and piston. They can resist continuous friction and periodic pressure changes effectively, and will not deform or creep even after tens of thousands of reciprocating movements. Their reliable performance directly ensures the lifting force and operating sensitivity of the entire hydraulic system.

Q: How do glass-filled PTFE backup rings cooperate with main seals to extend the overall service life?
A: The added glass fiber greatly improves the structural rigidity and compression resistance of PTFE material. These thin backup rings are installed beside the main PU seals, filling the tiny gaps of installation grooves completely. When the loader suddenly lifts ultra-heavy materials or travels over bumpy ground to generate instantaneous hydraulic pressure peaks, the PTFE rings can share the excessive pressure evenly, preventing the lip of main seals from being squeezed, twisted or damaged. Besides, its low-friction characteristic also optimizes the moving smoothness of internal components.

Q: What practical effects do fabric guide rings bring to the operation of hydraulic cylinders?
A: During the working process, unbalanced load will generate certain lateral thrust on the piston. The fabric guide ring can absorb and offset this eccentric force in real time, guiding the piston to move along the central axis all the time. It avoids eccentric wear caused by piston deviation, and greatly reduces the direct friction between metal parts. This not only makes the cylinder run more stably and quietly, but also slows down the wear speed of the cylinder tube and piston, protecting expensive metal components effectively.

 

5. Exhibition and Wearhous

14X-13-05110  14X1305110 SERVICE KIT,TORQUE CONVERTER FOR KOMATSU D65EX-12E,D65A-12 1

14X-13-05110  14X1305110 SERVICE KIT,TORQUE CONVERTER FOR KOMATSU D65EX-12E,D65A-12 2

 

14X-13-05110  14X1305110 SERVICE KIT,TORQUE CONVERTER FOR KOMATSU D65EX-12E,D65A-12 3

 

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