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  3. NUMATICS VJ-684026-1

NUMATICS VJ-684026-1 Pneumatic Cylinder 3-1/4 4005G107PR7

4005g107pr7 Numatics Vj-684026-1 Pneumatic Cylinder Bore 3-1/4 Inch #4005g107pr7

( Brand: Numatics ), ( Manufacturer Part Number: VJ-684026-1 ), ( Part Type: Pneumatic Cylinder )

Review NUMATICS Pneumatic Cylinder Bore 3-1/4 Inch #4005g107pr7

The **Numatics VJ-684026-1** is a high-performance, precision-engineered pneumatic cylinder designed for demanding industrial applications where reliability, durability, and consistent performance are paramount. Part of Numatics robust **VJ series**, this cylinder is engineered with a **3-1/4" (82.55 mm) bore diameter** and a **4005G107PR7** model designation, indicating its optimized specifications for medium-duty to heavy-duty operations. The cylinder features a **double-acting design**, delivering bidirectional force for both extension and retraction, making it ideal for applications requiring precise positioning, clamping, or material handling. Constructed from high-grade **steel alloys**, the cylinder s body and rod are treated with a **hard chrome plating** on the rod to ensure corrosion resistance, extended wear life, and reduced friction, even in harsh environments with exposure to moisture, dust, or chemical residues.

The **VJ-684026-1** incorporates Numatics **patented VJ valve interface**, which enhances sealing performance and reduces air leakage, contributing to energy efficiency and consistent operation. The cylinder is equipped with **piston rod seals** and **wipers** that protect against contamination while maintaining smooth, vibration-free movement. The **standard stroke length** (though not explicitly listed in the model number, typically available in customizable ranges) ensures flexibility for various application requirements, whether in automated assembly lines, packaging machinery, or material processing systems. The cylinder s **quick-connect fittings** (compatible with Numatics **G1/4" or G1/2" ports**) simplify installation and maintenance, allowing for rapid disassembly and replacement of seals or components without specialized tools.

One of the standout features of this cylinder is its **integrated cushioning system**, which can be adjusted to control the speed of the rod during extension and retraction, reducing impact forces and wear on both the cylinder and connected machinery. This is particularly beneficial in applications where sudden stops could cause damage or noise, such as in robotic arms, conveyor systems, or press operations. The **VJ series** also benefits from Numatics **modular design philosophy**, meaning that accessories like **end-of-stroke sensors, magnetic rod sensors, or custom mounting brackets** can be easily integrated to enhance functionality and safety. Additionally, the cylinder s **compact yet sturdy construction** makes it suitable for applications with limited space while still delivering high force output typically around **1,200 lbs (540 kgf) at 80 PSI** ensuring reliable performance under continuous operation.

Built to meet **ISO 6432 standards**, the **Numatics VJ-684026-1** offers a high level of interchangeability with other pneumatic components, ensuring compatibility with existing systems. Its **low-maintenance design** minimizes downtime, as the cylinder requires only periodic lubrication of the seals and wipers to maintain optimal performance. Whether deployed in **food and beverage processing, automotive manufacturing, or general industrial automation**, this cylinder exemplifies Numatics commitment to **precision engineering and operational excellence**, providing a dependable solution for applications where air-powered actuation is essential. With its blend of **durability, efficiency, and adaptability**, the **VJ-684026-1** stands as a versatile workhorse in modern pneumatic systems.

### **Pros and Cons of buying a Numatics VJ-684026-1 Pneumatic Cylinder (3-1/4" Bore, 4005G107PR7)**

#### **Pros:**

1. **High Quality and Reliability** Numatics is a well-established brand known for durable, precision-engineered pneumatic components. This cylinder is designed for industrial applications, ensuring long-term performance under demanding conditions.

2. **Standardized Compatibility** The **3-1/4" bore** and **4005G107PR7** model fit common pneumatic systems, making it easy to integrate with existing equipment. It follows industry standards, reducing compatibility issues.

3. **Versatile Applications** Suitable for a wide range of industrial uses, including packaging, material handling, clamping, and automation. The **PR7** designation suggests it may have a rod seal or special features for specific environments (e.g., resistance to contaminants).

4. **Good Force Output** With a **3-1/4" bore**, it provides sufficient force for moderate to heavy-duty tasks, balancing power and efficiency.

5. **Maintenance-Friendly** Numatics cylinders are generally easy to service, with accessible seals, ports, and mounting options. Replacement parts are widely available.

6. **Energy Efficiency** Pneumatic systems are often more energy-efficient than hydraulic ones for repetitive tasks, reducing operational costs over time.

7. **Quick Exhaust Option** The **VJ series** (likely a variant of Numatics standard line) often includes quick-exhaust features, improving cycle times in automated processes.

8. **Global Support and Warranty** Numatics offers technical support, warranties, and authorized distributors worldwide, ensuring availability of spare parts and troubleshooting assistance.

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#### **Cons:**

1. **Higher Upfront Cost** Compared to generic or lower-end pneumatic cylinders, Numatics products are premium-priced. This may be a barrier for small businesses or budget-conscious buyers.

2. **Potential Overkill for Light-Duty Use** If the application requires only minimal force or speed, a smaller or less expensive cylinder might suffice, making this model unnecessarily costly.

3. **Dependence on Compressed Air Supply** Pneumatic systems require a stable air supply, which may not always be available or may introduce additional costs (e.g., air compressors, filters, and dryers).

4. **Limited Customization** Unlike some specialty cylinders, this standard model may not offer custom stroke lengths, mounting options, or specialized seals without additional modifications.

5. **Noise and Vibration** Pneumatic cylinders can generate noise and vibration, which may require additional soundproofing or damping in sensitive environments.

6. **Seal Wear Over Time** Like all pneumatic cylinders, seals degrade with use, requiring periodic maintenance or replacement, which adds to long-term costs.

7. **Space Requirements** The **3-1/4" bore** means it occupies more space than smaller cylinders, which may be a constraint in compact machinery designs.

8. **Potential for Leaks** If not properly maintained, seals or connections can leak air, reducing efficiency and requiring troubleshooting.

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### **Conclusion:**

The **Numatics VJ-684026-1 (3-1/4" bore, 4005G107PR7)** is a **high-quality, reliable, and versatile** pneumatic cylinder well-suited for **industrial automation, material handling, and general-purpose applications** where durability and precision are critical. Its **standardized design, compatibility, and brand reputation** make it a strong choice for businesses that prioritize **long-term performance and ease of integration**.

However, it is **not the best fit** for **light-duty, cost-sensitive, or highly customized** applications where a smaller or more specialized cylinder would suffice. The **higher upfront cost** and **dependence on air supply** are factors to consider, especially for smaller operations or non-industrial uses.

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

- You need a **durable, standard pneumatic cylinder** for **industrial automation, packaging, or heavy-duty tasks**.

- You require **Numatics reliability** and **easy integration** with existing systems.

- Your application demands **moderate to high force** and **consistent performance**.

- **Avoid it if:**

- You are working with **light-duty or low-force applications** where a smaller cylinder would work.

- Budget constraints make a **premium brand unnecessary**.

- You need **highly customized** features (e.g., extended strokes, specialized seals) not offered by this model.

For most **industrial users**, this cylinder represents a **solid investment** in performance and longevity. If cost is a major concern, consider **comparing it with other reputable brands** (e.g., Festo, SMC) or **used/refurbished units** to find a balance between quality and price.

Details:

part #: vj6840261 prices

  • $59.99-$150.00

specifications valvesplumbing:

  • brand: Numatics
  • mpn: Vj-684026-1
  • part type: Pneumatic Cylinder

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  • started: February 24, 2026

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general valvesplumbing:

  • Hydraulics, Pneumatics, Pumps Plumbing > Valves Manifolds > Other Valves Manifolds
  • condition: Used
part type: pneumatic cylinder,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > valves manifolds, sku: 22630805694190881,
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