Komatsu Arm Cylinder Seal Kit Arm Cylinder Seal Repair Kit 721-98-01750 7219801750 PC490LCI-11

Product Show:

Related Part:

How To Buy:

Step 1: Tell us the spare parts you want and provide enough information to confirm the product price.

• "Product name + part number + quantity".
• Expected packaging: general packaging or customized packaging.

Step 2: Quotation and invoice

• We will send the quotation to you as soon as possible. Once confirmed, we will issue an official invoice and provide bank information.

Step 3: Payment

• Pay to our account and send us a bank statement.
• Payment method: Western Union, T/T, Paypal, Transfer.

Step 4: Delivery

• After receiving the payment, we will arrange the goods to be delivered to your designated address in China as soon as possible.

Step 5: Receipt

• You just need to wait patiently for the goods.

Seal leakage analysis during operation of equipment:

The centrifugal force generated by the high-speed rotation of the pump mechanical seal after the static test will inhibit the leakage of the medium. Therefore, the leakage of mechanical seals during operation is basically the seal failure caused by the damage of the dynamic and static ring friction pairs after eliminating the seal failure between the shaft and the end cover;

Factors causing the failure of the friction pair seal:

1. During operation, due to abnormal phenomena such as evacuation, cavitation, pressure holding, etc., a large axial force is caused, so that the contact surfaces of the dynamic and static rings are separated;

2. When the mechanical seal is installed, the amount of compression is too large, resulting in serious wear and injury on the end face of the friction pair;

3. The moving ring seal is too tight, and the elastic bud cannot adjust the axial floating amount of the moving ring;

4. The static ring seal is too loose. When the moving ring floats axially, the static ring is separated from the static ring seat;

5. There are granular substances in the working medium, which enter the friction pair during operation and damage the sealing end faces of the dynamic and static rings;

6. The design and selection are wrong, the specific pressure of the sealing end face is low or the cold shrinkage of the sealing material is large;

The above situation often occurs in the trial operation, and sometimes can be eliminated by properly adjusting the static ring seat, etc., but most of them need to be disassembled and replaced.

Company brief:

Guangzhou Suncar Construction Machinery Co., LTD., founded in 2014, is a foreign trade company specializing in the wholesale and retail of construction machinery seals. Its current business covers many regions at home and abroad.Over the years, we have focused on the innovation and development of manufacturing technology, and have a highly automated production and processing base, providing excavators, bulldozers and other equipment with high-quality sealing parts and accessories, one-stop solution to the maintenance problems of construction machinery.

Loose card always adhere to the "quality to build the core competitiveness, innovation to change the world" business philosophy, vigorously explore overseas markets, develop the science and solid brand strategy planning, on the basis of quality, each type of product made the instruction manual production technology, from raw material selection to each link of manufacturing and processing have strict standards, multilayer testing verifiC.A.Tion, to ensure product quality and performance in accordance with using the standard, size, model can accurately fit the corresponding mechanical equipment, machinery spare parts "made in China" quality feeling and the internationalization of the brand image.