Pneumatic Swing Buffer Excavator Relief Valve Cartridge Assembly For E307
Price:
Please send mail or Whatsapp
MOQ:
1 Piece
Delivery Time:
1–7 Working Days After Payment
Brand:
ZVEZDA
Product Description
E307 Swing Buffer Relief Cartridge Valve Assembly For E307
Integrated solid anti-rust alloy steel cartridge body, multi-stage double O-ring anti-leakage sealing structure, fully isolating high-pressure hydraulic oil penetration and metal impurity blockage. The overall surface adopts precision grinding anti-corrosion treatment, adapting to muddy, high-temperature construction site hydraulic environment, eliminating internal leakage and swing power loss failure. All core components are precision CNC machined domestically, finished with full 300bar ultra-high pressure cycle durability test before delivery.
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| No. | Question & Answer |
|---|---|
| Q1 | Q: Which mini excavators fit ZVEZDA E307 swing relief valve? A: Direct replacement for E307 mini excavators, standard cartridge size, directly insert into swing motor without modifying valve cavity. In stock, ship within 1–7 working days. |
| Q2 | Q: Excavator still has swing impact noise and weak swing torque after replacement? A: Fatigued pressure spring leads to drifted relief pressure, replace complete ZVEZDA integrated swing relief cartridge to restore standard swing buffer pressure and normal swing power. |
| Q3 | Q: Can this swing relief valve replace main circuit relief valve or unloading valve? A: Not interchangeable. This medium-high pressure hydraulic cartridge valve is used for swing overload protection; main relief valve controls whole machine main circuit pressure, unloading valve adjusts idle medium pressure, different medium, pressure range and working principle. |
| Q4 | Q: Core advantages of ZVEZDA E307 swing relief valve? A: High strength alloy steel anti-wear spool, high fatigue resistant silicon manganese pressure spring, stable fixed relief pressure, double-layer HNBR high pressure anti-leakage sealing, full anti-rust precision ground cartridge body, OEM standard cartridge dimension direct replacement, neutral unbranded packaging, perfectly match E307 swing hydraulic overload protection system. |
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Company
Guangzhou Qichao Machinery Parts Co., Ltd.
Location
825-827, Zhuji International Machinery City, No.36 Zhuji Road, Tianhe District, Guangzhou, China
Contact Person
Sales