Boom Seal Kit 707-99-50680 7079950680 For Standard Machine PC240-8K Komatsu Cylinder Repair Kits

Our Advantage:
1. We have more than ten years of sales experience in excavator sealing systems, seal kits, hydraulic pump parts and engine parts in the international and domestic markets.
2. We provide Kobelco, Hitachi, C.A.T, Komatsu, Hyundai, Daewoo and Doosan complete sets for booms, arm, buckets, swing motors, travel motors, main pumps, center joints, crawler adjustment cylinders and gear pumps seals and seal kits.
3. Our Factory have advanced technology and 100% testing before delivery.
4. Quick delivery and competitive price.
5. The larger quantity you order, the better price we can supply.
6. We have a professional team to offer professional service for you.
7. We can offer New and Used, OEM, Good quality, Aftermarket parts to you.
8. All parts can check with part number, all parts can order by part number.
9. Safe packing to protect the goods, such as wooden box, Iron sheet.

Related Parts:

Basic Requirements For Sealing Materials:

The performance of the sealing material is an important factor to ensure effective sealing. The selection of the sealing material is mainly based on the working environment of the sealing element, such as the temperature, the working pressure, the working medium used, and the movement mode. The basic requirements for sealing materials are as follows:

• Have certain mechanical properties, such as tensile strength, elongation, etc.;
• Appropriate elasticity and hardness, small compression set;
• High temperature and low temperature resistance, no decomposition or softening at high temperature, and no hardening at low temperature;
• It is compatible with the working medium, without swelling, decomposition, hardening, etc.;
• Good oxygen resistance and aging resistance, durable;
• Abrasion resistance, no corrosion to metal;
• Easy to shape and process, low price.

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