Precision Fit for Komatsu PC220-7/220LC-7: 707-99-47790 Boom Hydraulic Cylinder Seal Kit - For Efficient Repair & Minimal Downtime

Precision Fit for Komatsu PC220-7/220LC-7: 707-99-47790 Boom Hydraulic Cylinder Seal Kit - For Efficient Repair & Minimal Downtime

1. Product Description

Engineered for Peak Performance & Minimal Downtime

This precision-engineered 707-99-47790 seal kit is the definitive solution for restoring the power and reliability of the boom (arm) cylinder on your Komatsu PC220-7 and PC220LC-7 excavators. Designed for a perfect fit, this complete set enables efficient repairs, drastically reducing equipment downtime and ensuring your machinery returns to demanding work with optimal, leak-free performance.

Key Features & Benefits

• Precision Fit for Efficient Repair: Guarantees an exact match for Komatsu PC220-7 and PC220LC-7 boom cylinders, simplifying installation and getting your equipment back to work faster.

• Built for Demanding Conditions: Rated as a High-Temperature and High-Speed Mechanical Seal, this kit withstands extreme operational stresses, ensuring reliable performance under high pressure and in harsh environments.

• Superior Material & Sealing: Manufactured from high-grade materials including TPU, NBR, FKM (Viton), and PTFE, offering exceptional petroleum-resistance and long-lasting durability.

• Complete All-In-One Kit: Contains every necessary component for a comprehensive overhaul, including Rod Seals, Piston Seals, Wear Rings, and more.

• Maximize Productivity: By ensuring a swift and effective repair, this kit directly contributes to minimizing downtime and maintaining your project's schedule.

Product Specifications

• Part Number: 707-99-47790

• Compatible Models: Komatsu PC220-7, PC220LC-7 Excavator

• Application: Boom Cylinder Seal Kit (also referred to as Arm Cylinder Seal Kit)

• Seals Type: Complete Set of Seals for Hydraulic Cylinder

• Performance Traits: Optimal Performance, Petroleum-Resistant, High-Temperature & High-Speed Rated

• Primary Materials: TPU, NBR, FKM, PTFE

Application & Use

This kit is specifically designed for the boom hydraulic cylinder of the Komatsu PC220-7 and PC220LC-7. It is the ideal choice for equipment owners, fleet managers, and repair workshops who demand a reliable, high-quality seal kit that delivers both precision and durability.

2. Company profile

Guangzhou Midao (Mido) Oil Seal is a leading supplier specializing in high-performance oil seals and sealing solutions. Renowned for their durability and reliability, Midao's products are widely used in various machinery, from construction equipment (e.g., excavators) to industrial applications. The company serves a global clientele, providing critical components to the machinery industry worldwide.

The history of exhibition

2001 Beijing BICIS

2004 Shanghai Bauma

2005 Beijing BICIS

2006 Shanghai Bauma

2007 Beijing BICIS

2009 Beijing BICIS

2011 Beijing BICIS

2013 Beijing BICIS

2024 Moscow CTT

2024 Shanghai Bauma

3. Product Presentation

FAQ

Q1. Why should I choose your products?

While operating our own manufacturing facility, we also distribute oil seals from renowned international brands. We are committed to providing one-stop solutions to meet all our customers' diverse needs. Excavator/ Loader/ Motor Grader Seal kits and Spare Parts.

Q2. What series of products does your company have?

Excavator/ Loader/ Motor Grader Seal kits and Spare Parts.

Q3. Any other good service your company can provide?

Yes. Conduct regular follow-up visits, and there are dedicated staff available online 24 hours a day

In the era of digital office, our company is committed to providing customers with comprehensive and efficient service experiences. The "Online Specialist Response" is a key component of this commitment.

Guangzhou Mido Oil Seal Firm

Mido Oil Seal was founded in 2007, which is a company specializing in the sale of construction machinery oil seals. Gathering oil seals from world's famous factories, with a standing stock of 1,000 varieties. The main service is construction machinery and engineering machinery.

The company has a total of three store and a warehouse now, one of which serves as the Foreign Trade Department to customer reception and product display. The most important thing is that we have a professional team for purchasing, selling, packing, shipping and after-sale service.

Our CEO Mr. Hu has been engaged in the oil seal industry since 1995. As one of the founders, he founded the Guangzhou Construction Machinery Industry Association and served as its president.According to the actual situation of the Chinese excavator maintenance market, he has continuously studied, researched, innovated, introduced and developed high-quality oil seal repair kits that meet the real needs of the market. Ensure that customers can buy High-performance anti-leakage effect and long-term oil sealing effect. Based on technology leadership, the company has established a market research, quality assurance and after-sales service system to fully meet customers exact needs and has won excellent results in the industry. The reputation and word of mouth have won the continuous support of domestic and international counterparts and customers. Through long-term first-line services, we know that the promotion and use of high-quality oil seals are inseparable from your support and encouragement. We always adhere to the principle of quality first and benefit sharing to provide high-quality oil seals for the customers. 

In addition to online sales, we also participate in exhibitions to have better face-to-face contact with customers.

2001 Beijing BICIS

2004 Shanghai Bauma

2005 Beijing BICIS

2006 Shanghai Bauma

2007 Beijing BICIS

2009 Beijing BICIS

2011 Beijing BICIS

2013 Beijing BICIS

2024 Moscow CTT

2024 Shanghai Bauma

Any other good service your company can provide?

Yes. Conduct regular follow-up visits, and there are dedicated staff available online 24 hours a day

In the era of digital office, our company is committed to providing customers with comprehensive and efficient service experiences. The "Online Specialist Response" is a key component of this commitment.

When you visit our official website and click on the consultation portal, you immediately embark on an interactive journey with our professional service team. Our online specialists have undergone rigorous and systematic training, covering product knowledge, industry trends, and solutions to common problems, all to ensure accurate and swift responses to your every inquiry. Whether you have questions about the functional details of our products, face dilemmas in making a purchase, or encounter issues during use, simply type out your query, and our online specialists will respond at the fastest possible speed.

They not only provide precise answers based on your questions but also proactively share relevant cases and experiences to help you better understand and apply the information. To ensure the professionalism and standardization of responses, we have developed a comprehensive knowledge base and a set of communication protocols. While referencing these resources, our online specialists also adapt flexibly to your specific needs, offering personalized service. Moreover, our online customer service team operates on a shift system, available year-round without interruption. Whether during busy hours on workdays or leisure times on holidays, you can always receive a caring response at the first moment you need it.