Double acting hydraulic cylinder

**Double Acting Hydraulic Cylinder is a linear actuator that extends and retracts the piston rod through bidirectional pressurization of hydraulic oil. Its core feature is bidirectional active drive, which is more precise in control and more balanced in output compared to single acting oil cylinders. It is widely used in fields such as engineering machinery, agricultural equipment, and industrial automation.   

**2. Core features and advantages**

✅ ** Bidirectional power output * * - alternating pressure at the inlet and outlet, the piston rod can actively extend and retract without relying on external force for resetting.   

✅ ** High precision control * * - By adjusting the oil flow through a flow valve, precise control of speed and position (with a repeatability of ± 0.5mm) can be achieved.   

✅ ** Strong load capacity * * - pressure resistant design (up to 35MPa), suitable for heavy-duty scenarios such as excavator booms and stamping machines.   

✅ ** Sturdy structure * * - high-quality alloy cylinder tube+chrome plated piston rod, wear-resistant and corrosion-resistant, with a lifespan of over 100000 cycles * *.   

✅ ** Multi functional adaptation * * - can integrate sensors (such as magnetic ring displacement detection) to achieve intelligent feedback control.   

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**3. Typical structural composition**

|* * Component * * | * * Function * * | * * Material/Process * *|

|-------------------|------------------------------------------|-----------------------------|  

|* * Cylinder barrel * * | Contains hydraulic oil and piston movement | Cold drawn seamless steel pipe (surface honing)|

|* * Piston rod * * | Transmission of thrust/tension | 45 # steel plated with hard chrome (thickness ≥ 20 μ m)|

|Sealing System * * | Preventing Internal and External Leakage | Polyurethane (PU) or Nitrile Rubber (NBR)|

|* * Inlet and outlet * * | Connect hydraulic pipelines (usually labeled as A/B ports) | Thread or flange interface|

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**4. Main application scenarios**

-* * Construction Machinery * *: Excavator bucket drive, crane leg lifting.   

-* * Agricultural equipment * *: harvester header adjustment, tractor suspension control.   

-Industrial production line: stamping machine slide control, injection molding machine clamping mechanism.   

-* * Special vehicles * *: dump truck cargo bucket lifting, fire ladder telescopic.   

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**5. Key parameter selection guide**

|* * Parameter * * | * * Description * * | * * Common Range * *|

|-------------------|------------------------------------------|----------------------------|  

|Cylinder diameter/rod diameter determines output force (F=pressure x area) | Cylinder diameter: 40-300mm|

|* * stroke * * | piston rod telescopic length | 50-3000mm (customizable)|

|* * Work pressure * * | System rated pressure | 16-35MPa (high pressure type can reach 70MPa)|

|* * Installation method * * | Select according to mechanical structure | Earring type, flange type, footrest type, etc|

|* * Buffer design * * | End deceleration anti impact (optional) | Adjustable buffer or fixed buffer|

**6. Optional features**

-* * Position feedback * *: Built in magnetostrictive or rope sensor.   

-* * Resistant to extreme environments * *: Low temperature sealing (-40 ℃) or anti-corrosion coating.   

-Quick connector: Easy to install and replace on site.   

If you need to recommend specific models based on your device parameters (such as load, speed), or obtain structural drawings, please provide detailed requirements!