Arm Cylinder Seal Kit 721-98-00140 7219800140 Arm Cylinder Sealing Kit Komatsu For PC490LC-11 PC490-11

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FAQ:

Q1: Are you a trading company or a manufacturer?
A: We are a trading company, and we also have our own factory to produce seals with more than 10 years of production experience.

Q2: What if I only know the model of the excavator? But I can't provide the part number, what should I do?

A: If possible, you can send pictures of old products, labels or sizes for reference.

Q3: What should I do if there is a problem with the product?

A: First of all, I have confidence in the quality of our products. If you find any problem please provide us the picture, we will check after confirmation, please reply us and we will provide you the correct item.

Product Description:

Hydraulic cylinder seal kits are used to seal the gap between different parts of the hydraulic cylinder. The function of hydraulic cylinder seal kits is to prevent oil leakage, to assure the working pressure of the hydraulic system, to maintain its power.

There are regularly three cylinders for the excavator, boom cylinder, arm cylinder, bucket cylinder.

Boom cylinder is the one (or the two) near the cabin. Usually, there is one piece boom cylinder for the small excavator under 10-tun; the bigger excavator's two pieces boom cylinders. But there is an exception too when the driver will remove one piece for a special purpose, say at some particular working place, it is convenient to work by one cylinder. Soft remind: all refit job should be operated by an experienced technician.

Arm cylinder is the top one, and it's usually be called as top cylinder;

Bucket cylinder is the one that connects and controls the bucket.

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.