Komatsu Excavator Spare Parts Hydraulic Bucket Cylinder

ISO9001 Standard Excavator Hydraulic Cylinder for Arm, Bucket, and Boom – Available for Sale Construction equipment hydraulic cylinders are essential components that require durability and reliability. These parts are exposed to extreme conditions such as high temperatures, abrasive materials, and corrosive environments. A failure in the hydraulic system can lead to significant downtime, project delays, and costly repairs. That’s why our hydraulic cylinders are designed to withstand harsh working conditions and deliver long-term performance. Our hydraulic cylinders are built with high-quality materials and advanced manufacturing techniques. Each component is carefully selected and tested to ensure it meets international standards. Here are some of the key features: 1. **Rod Seal**: We use premium brand seals such as polyurethane U-packing rod seals and buffer seals. Custom seals are also available upon request. 2. **Tube**: Skived and burnished or vertically honed tubes ensure concentricity and straightness for optimal performance. 3. **Bushing**: Hardened steel bushings or copper bushings are used for enhanced strength and wear resistance. 4. **Eye**: Forged high-strength steel eyes improve both aesthetics and mechanical performance. 5. **Rod**: Induction hardening followed by chrome plating increases surface hardness and improves corrosion resistance. 6. **Piston**: High-pressure sealing materials like Teflon or nylon are used, combined with precision machining for consistent performance. 7. **Cap**: Forged high-strength steel caps ensure structural integrity and longevity. **Technology Used:** - Skive Roller Burnishing Machines - Vertical Honing Machines - Machining Centers - CNC Lathes - Automatic Welding Machines - Grinders - Polishing Machines - Cylinder Assembly Benches - Cylinder Test Benches - Spray Room **Process Flow:** Materials → Tempering → Cylindrical Lathe Cutting → High-Frequency Quenching → Cylindrical Grinding → Hard Chrome Plating → External Grinding After tempering and surface hardening, the cylinder undergoes hard chrome plating to ensure a smooth, durable finish on both the inside and outside. **Piston Rod Specifications:** - Material: 45# high-grade carbon steel or 40CR - Tempering Hardness: HB240–260 - High Frequency Depth: 2mm–3mm - High Frequency Hardness: HRC55°±2° - Chrome Plating Thickness: 0.03mm–0.06mm - Chromium Layer Hardness: HV800–1000 - Straightness: ≤0.08mm/m - Surface Roughness: Ra0.03um–Ra0.06um - Outside Diameter Tolerance: f7 **Hydraulic Cylinder Tube Specifications:** - Material: 45# - Tensile Strength: ≥647 N/mm² - Linearity: 0.3–1/1000 - Specific Elongation: ≥4% - Hardness: HB207 - Inner Hole Roughness: 0.4–0.8     Xiamen Fortune Machinery Co., Ltd. has been a leading manufacturer and exporter of undercarriage parts for excavators and bulldozers for over 15 years. Located in Quanzhou City, Fujian Province, near Xiamen Port, we provide convenient access to global markets. We specialize in supplying replacement parts such as track rollers, sprockets, segments, bucket teeth, and more. Our products are compatible with major brands like Komatsu, Hitachi, Caterpillar, Kobelco, Kato, Daewoo, Hyundai, and Samsung. Most of our products are exported to Europe, Southeast Asia, the Middle East, and South America. With a commitment to "Good Quality and Best Services at Reasonable Prices," we continuously improve our production techniques to offer better products at competitive prices. We welcome customers from around the world to consult and visit us. **Product Compatibility Table:** | BRAND | PC30 | PC40 | PC45 | PC60 | PC75 | PC100 | PC120 | PC200 | |-------------|------|------|------|------|------|--------|--------|--------| | KOMATSU | PC30 | PC40 | PC45 | PC60 | PC75 | PC100 | PC120 | PC200 | | EXCAVATOR | PC220| PC300| PC350| PC400| | | | | | CATERPILLAR | E70B | E110 | E120 | E200B| E307 | E311 | E312 | E320 | | EXCAVATOR | E322 | E325 | E300B| E330 | | | | | | KOMATSU | D20 | D21 | D30 | D31 | D37 | D40 | D50 | D60 | | BULLDOZER | D63 | D65 | D80 | D85 | D135 | D155 | D355 | D375 | | CATERPILLAR | D3C | D3D | D4 | D4C | D4D | D4E | D5 | D5H | | BULLDOZER | D6 | D6C | D6D | D6H | D7E | D7G | D8N | D9N | | HITACHI | EX30 | EX40 | EX60 | EX100| EX120| EX200 | EX220 | EX300 | | | EX400| ZAX200| ZX330| ZX350| UH07 | UH081 | UH083 | | | DAEWOO | DH55 | DH200| DH220| DH280| DH300| DH320 | | | | HYUNDAI | R55 | R110 | R130 | R150 | R200 | R210 | R250 | R290 | | KEBELCO | SK60 | SK100| SK120| SK200| SK220| SK300 | K904 | K907 | | MITSUBISHI | MS110| MS120| MS140| MS180| | | | | | KATO | HD140| HD250| HD400| HD550| HD700| HD850 | HD900 | HD1220 | | SAMSUNG H.I.| MX8 | SE200| SE210| SE280| MX292| SE350 | | | | SUMITOMO | SH70 | SH100| SH120| SH160| SH200| SH280 | SH300 | SH340 | **FAQs:** 1. Are you a trader or a manufacturer? We are an integrated company with a factory located in Nanan District, Quanzhou, and a sales office in Xiamen. The distance between the two locations is about 80 km, taking approximately 1.5 hours to travel. 2. How can I ensure the part fits my machine? Please provide the correct model number, serial number, or dimensions of the part. If you're unsure, we can assist with measurements or drawings. 3. What payment terms do you accept? We typically accept T/T or L/C, but other terms can be negotiated based on your needs. 4. What is the minimum order quantity? It depends on the product. Normally, the minimum order is USD 5,000. Full container loads or LCL (Less than Container Load) are also acceptable. 5. What is the delivery time? For FOB Xiamen or any Chinese port, the delivery time is generally 20 days. If parts are in stock, delivery can be as fast as 7–10 days. 6. How do you ensure quality? We have a comprehensive quality control system. Every stage of production is monitored to ensure the final product meets all specifications and is safely packed for shipping. **Contact Us:** Xiamen Fortune Machinery Co., Ltd. Contact Person: James Website: www.fortunepart.com

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