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  3. PARKER C21U19

PARKER C21U19 Hydraulic Cylinder Tie Rod 2.50 2.25

C21u19 Parker Hydraulic Cylinder 2.50 Bore 2.25 Stroke Tie-rod Style

( Brand: Parker ), ( Manufacturer Part Number: C21U19 ), ( Part Type: Hydraulic Tie Cylinder Rod ), ( Material: Steel ), ( Country Of Origin: United States )

Review PARKER Hydraulic Cylinder 2.50 Bore 2.25 Stroke Tie rod Style

The **Parker Hannifin C21U19 Hydraulic Cylinder** is a robust, high-performance tie-rod design engineered for demanding industrial applications where reliability, precision, and durability are paramount. This cylinder belongs to Parker s **C21 series**, renowned for its versatility in heavy-duty machinery, material handling, construction equipment, and automated manufacturing systems. With a **2.50-inch bore diameter** and a **2.25-inch rod diameter**, this tie-rod cylinder delivers a balanced stroke length and force output, making it ideal for applications requiring moderate to high thrust or pull forces while maintaining compact yet sturdy construction. The **tie-rod design** ensures exceptional stability under lateral loads, reducing the risk of misalignment or bending, which is critical in applications involving dynamic or fluctuating forces.

Constructed from **high-grade steel**, the cylinder s body and end caps are precision-machined to exacting tolerances, ensuring smooth operation and resistance to wear over extended service life. The **double-acting design** allows for bidirectional force application, enabling precise control in both extension and retraction cycles, which is essential for applications such as clamping, pressing, or positioning systems. The **sealing system** incorporates Parker s proprietary **urethane or nitrile rubber seals**, depending on the model variant, which provide superior resistance to abrasion, temperature extremes, and hydraulic fluids, including mineral-based, synthetic, and biodegradable oils. This ensures minimal leakage and consistent performance even in harsh environments.

The **C21U19** features a **standard thread connection** (typically 1-inch NPT for the port fittings) for easy integration into existing hydraulic systems, while the **tie-rods** are securely fastened with high-strength bolts and nuts, allowing for quick disassembly and maintenance without compromising structural integrity. The cylinder s **rod wiper** and **gland seal** further protect against contamination, extending the life of internal components and reducing downtime. Additionally, the **piston rod** is often chromed or coated to prevent corrosion, ensuring longevity in wet or corrosive environments.

Parker s **C21 series** is also designed with **modular flexibility**, allowing for customization in stroke length, mounting options, and additional features such as position sensors, cushioning, or custom rod coatings. This adaptability makes the **C21U19** a cost-effective solution for both original equipment manufacturers (OEMs) and maintenance professionals seeking a dependable, off-the-shelf hydraulic actuator. Whether deployed in **material handling conveyors, industrial presses, agricultural machinery, or robotic automation**, this cylinder exemplifies Parker s commitment to engineering solutions that balance performance, efficiency, and reliability delivering consistent power where it matters most.

### **Parker C21U19 Hydraulic Cylinder (2.50" Bore, 2.25" Rod) Pros and Cons**

#### **Pros:**

1. **High Quality and Reliability** Parker Hannifin is a well-established manufacturer known for durable, precision-engineered hydraulic components. Their cylinders are designed for long-term performance in demanding applications.

2. **Wide Compatibility** The C21U19 series is part of Parker s standard tie-rod line, meaning it can be easily integrated into existing hydraulic systems with minimal modifications.

3. **Adjustable Tie-Rod Design** The tie-rod construction allows for easy length adjustments, making it versatile for different mounting requirements without needing custom fabrication.

4. **Good Load Capacity** With a 2.50" bore and 2.25" rod, this cylinder can handle moderate to heavy loads, making it suitable for industrial, agricultural, or material handling applications.

5. **Standardized Components** Since it s a common model, replacement parts (seals, gaskets, rods) are readily available, reducing downtime and maintenance costs.

6. **Corrosion Resistance** Many Parker cylinders come with zinc or chrome plating, offering protection against wear and rust in harsh environments.

7. **Modular Design** The cylinder can be customized with different end fittings (clevis, flange, etc.) and mounting options to fit specific applications.

8. **Energy Efficiency** Hydraulic cylinders from reputable brands like Parker are designed to minimize internal leakage, improving system efficiency.

9. **Warranty and Support** Parker offers warranties and technical support, ensuring that issues can be addressed promptly if they arise.

10. **Proven Performance in Various Industries** Used in construction, agriculture, mining, and manufacturing, this cylinder has a track record of reliable operation in tough conditions.

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#### **Cons:**

1. **Higher Upfront Cost** Compared to generic or aftermarket cylinders, Parker s premium branding comes with a higher initial purchase price.

2. **Potential Overkill for Light-Duty Applications** If the application only requires light loads or infrequent use, a more affordable standard cylinder might suffice.

3. **Maintenance Requirements** Like all hydraulic cylinders, the C21U19 requires regular inspection, lubrication, and seal replacement to prevent leaks and wear.

4. **Weight and Bulk** Tie-rod cylinders are generally heavier and larger than welded or cast designs, which may be a consideration in space-constrained applications.

5. **Limited Customization Without Additional Costs** While adjustable, significant modifications (e.g., custom rod lengths, special coatings) may incur extra expenses.

6. **Potential for Misapplication** If not properly sized for the intended load and pressure, the cylinder could fail prematurely, voiding warranties.

7. **Dependence on Hydraulic System Compatibility** The cylinder must match the system s pressure rating, flow rate, and fluid type; mismatches can lead to inefficiencies or damage.

8. **Resale Value Depreciation** Like most hydraulic equipment, the cylinder will depreciate over time, and resale value may not justify the initial cost for some buyers.

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### **Ending Conclusion:**

The **Parker C21U19 hydraulic cylinder (2.50" bore, 2.25" rod)** is a **high-quality, reliable choice** for applications requiring durability, adjustability, and compatibility with standard hydraulic systems. Its tie-rod design offers flexibility in mounting, and Parker s reputation ensures long-term performance. However, the **higher cost** and **maintenance needs** make it less ideal for budget-conscious or low-load applications.

For **industrial, agricultural, or heavy-duty uses** where reliability and adjustability are critical, this cylinder is an excellent investment. For **light-duty or cost-sensitive applications**, a more economical alternative may be preferable.

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### **Recommendation:** - **Buy if:**

- You need a **durable, adjustable, and well-supported** hydraulic cylinder for **moderate to heavy loads**.

- Your application requires **standardized parts and easy maintenance**.

- You prioritize **brand reliability** and **long-term performance** over initial cost savings.

- **Consider alternatives if:**

- Your application involves **light loads or infrequent use**, where a cheaper standard cylinder would suffice.

- You require **ultra-compact or lightweight** solutions, as tie-rod cylinders are bulkier.

- Budget constraints make the premium price of Parker an issue, and you can find a **reputable generic equivalent** with similar specs.

For most **industrial or commercial users**, the **Parker C21U19 is a strong recommendation** due to its balance of quality, adjustability, and support. Always verify **pressure, flow, and load requirements** before purchase to ensure proper sizing.

Details:

Threaded rod end visible. Heavy-duty foot/base mounting style. Condition: Used. Brand: Parker.

Untested but presumed to be working well. Type: Hydraulic cylinder / linear actuator. Threaded ports visible on end caps. Parker C21U19 hydraulic cylinder, tie-rod industrial actuator with 2.50 inch bore and 2.25 stroke, as shown in pictures.

Construction: Tie-rod cylinder. Visible tag markings show model C21U19, serial FF156171 note that four are available so they will not all have the same number, bore 2.50, and stroke 2.25. The cylinder tag identifies Parker Cylinder Division, Dies Plainest, IL 60016. Please review all photos carefully for exact configuration and condition.

No accessories, fittings, or documentation included beyond what is shown.

part #: c21u19 price

  • $89.99

specifications hydraulicylind:

  • brand: Parker
  • mpn: C21u19
  • part type: Hydraulic Tie Cylinder Rod
  • material: Steel
  • country of origin: United States

offer hydraulicylind:

  • sold: 0
  • availability: In Stock
  • options: Ship-to-home
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  • quantity: 4
  • started: May 25, 2026

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general hydraulicylind:

  • Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Hydraulic Pneumatic Cylinders
  • condition: Used

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  • # reviews: 7928
  • city: Chicago, Illinois
  • rating: 99.8%
part type: hydraulic tie cylinder rod, country of origin: united states,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > hydraulic pneumatic cylinders, material: steel, sku: 23515835253412711,
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