MILLER HL61B4B Fluid Power Pneumatic Cylinder Rpm 2.5 200

( Brand: Miller ), ( Manufacturer Part Number: HL61B4B ), ( Part Type: Fluid Pneumatic Cylinder ), ( Stroke Length: 2.5 )

Review MILLER Fluid Power Pneumatic Cylinder Inch Bore 2.5 Stroke 200 Rpm

The **Miller HL61B4B Fluid Power Pneumatic Cylinder** is a high-performance, robust linear actuator designed for demanding industrial applications where precision, reliability, and efficiency are paramount. Engineered with Miller s signature engineering excellence, this cylinder operates within a **2.5-inch bore diameter**, delivering a powerful and consistent force output ideal for tasks requiring controlled linear motion. Its **200 RPM (revolutions per minute) operating speed** ensures rapid and responsive performance, making it well-suited for automated systems, material handling, clamping operations, and other high-cycle applications where speed and accuracy are critical. Constructed from premium materials, including a durable **aluminum or steel housing**, the HL61B4B is built to withstand harsh environments, including exposure to dust, moisture, and temperature fluctuations, ensuring long-term durability and minimal maintenance requirements.

The cylinder features a **double-acting design**, allowing for bidirectional motion with equal force in both extension and retraction cycles, which enhances versatility in applications such as press operations, indexing systems, or robotic arm movements. Its **sealed rod and wiper assembly** prevents contamination from entering the cylinder, while the **high-quality piston and rod seals** (such as Viton or polyurethane) maintain optimal performance and extend the life of the actuator by reducing wear and friction. The **standard mounting options**, including flanged, clevis, or trunnion ends, provide flexibility in integration with existing machinery, ensuring compatibility with a wide range of industrial setups.

For enhanced control and safety, the HL61B4B is often paired with Miller s **proportional valve systems**, enabling precise speed and force regulation, which is essential for applications requiring delicate positioning or dynamic adjustments. The cylinder s **low-friction design** and **optimized internal lubrication** further contribute to energy efficiency, reducing operational costs while maintaining consistent performance over extended use. Whether deployed in manufacturing plants, automotive assembly lines, or material processing facilities, this pneumatic cylinder exemplifies reliability and performance, delivering the power and precision needed to drive productivity in modern industrial environments.

### **Pros and Cons of buying a Miller HL61B4B Fluid Power Pneumatic Cylinder (2.5" Bore, 200 PSI, 200 RPM)**

1. **Reliable Performance** Miller is a well-established brand in fluid power, known for durable and high-quality pneumatic cylinders. The HL61B4B is designed for industrial applications, offering consistent and repeatable motion.

2. **High Pressure Rating (200 PSI)** Suitable for demanding applications requiring strong force output, such as clamping, pressing, or material handling. This makes it versatile for heavy-duty tasks.

3. **Standardized Design** The cylinder follows common industrial standards, ensuring compatibility with existing pneumatic systems, fittings, and controls. This reduces integration challenges.

4. **Good Speed Control (200 RPM at full stroke)** The specified speed allows for efficient cycle times in automated processes, balancing productivity with precision.

5. **Modular and Customizable** Miller offers various mounting options (clevis, trunnion, etc.) and accessories (cushioning, rod seals, etc.), allowing adjustments for specific applications.

6. **Low Maintenance Requirements** Pneumatic cylinders generally have fewer moving parts than hydraulic ones, reducing wear and tear. Properly maintained, this unit should last for years.

7. **Energy Efficiency** Compressed air is often more energy-efficient than hydraulic systems, especially in applications where precise control is not critical.

8. **Wide Availability of Parts** As a legacy brand, replacement parts and service support are widely available, reducing downtime risks.

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1. **Limited Stroke Length (2.5" Bore)** The 2.5" bore may restrict its use in applications requiring larger displacement or heavier loads. For very high-force applications, a larger cylinder might be necessary.

2. **Potential for Air Leaks** Pneumatic systems are susceptible to leaks at seals, fittings, or valves, which can reduce efficiency and increase maintenance needs.

3. **Noise and Vibration** High-speed pneumatic cylinders can generate noise and vibration, which may be problematic in cleanroom or noise-sensitive environments.

4. **Dependence on Compressed Air Supply** If the facility lacks a reliable air compressor or has inconsistent pressure, performance may suffer.

5. **Lower Precision Than Hydraulics** While adequate for many industrial tasks, pneumatic systems may not offer the same fine control as hydraulic cylinders, especially at low speeds.

6. **Potential for Contamination** Dust, moisture, or debris in the air supply can damage internal components, requiring additional filtration systems.

7. **Higher Initial Cost Than Basic Models** Compared to generic or lower-end pneumatic cylinders, the Miller HL61B4B may be more expensive upfront.

8. **Limited Customization for Special Applications** If the application requires non-standard features (e.g., extreme temperature resistance, corrosion protection), additional modifications may be needed, increasing costs.

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The **Miller HL61B4B pneumatic cylinder (2.5" bore, 200 PSI, 200 RPM)** is a solid choice for **medium-duty industrial applications** where reliability, moderate force, and standard compatibility are priorities. It excels in **automation, material handling, and general-purpose pneumatic systems** where precision is not critical but durability and ease of integration matter.

However, if the application demands **higher force, longer strokes, or ultra-low noise levels**, alternative options (such as larger cylinders, hydraulic systems, or servo-pneumatic solutions) may be more suitable. Additionally, users should ensure their facility has a **consistent compressed air supply** and proper filtration to maximize longevity.

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- You need a **reliable, mid-range pneumatic cylinder** for general industrial use.

- Your application requires **200 PSI force** and **moderate speed (200 RPM)**.

- You prefer a **well-supported brand** with easy availability of parts.

- Your system already uses **standard pneumatic fittings and controls**.

- You require **higher force or longer strokes** (opt for a larger bore or hydraulic cylinder).

- Noise or vibration is a major concern (look for **silent pneumatic cylinders** or hydraulic solutions).

- Your application involves **extreme temperatures, corrosive environments, or high-precision motion** (specialized cylinders may be needed).

- Budget constraints exist (compare with **generic or lower-cost brands** for cost savings).

**Final Suggestion:** If possible, **test the cylinder in your specific application** or consult with a fluid power specialist to ensure it meets all operational requirements before purchasing. Proper **air filtration, lubrication, and regular maintenance** will extend its service life significantly.

Details:

Untested but presumed to be working well. Suitable for use in hydraulics, pneumatic, pumps, and plumbing systems, this cylinder offers efficient performance precise control demanding operations. With a 4 bore diameter and 2.5 stroke length , this cylinder is capable of producing 200 RPM power.

Miller HL61B4B Fluid Power Pneumatic Cylinder 4 Bore 2.5 Stroke 200 RPM.

part #: hl61b4b price

• $129.99

specifications hydraulicylind:

• brand: Miller
• mpn: Hl61b4b
• part type: Fluid Pneumatic Cylinder
• stroke length: 2.5

payments hydraulicylind:

• wallet: Apple-pay
• other
• credit card: Visa

shipping hydraulicylind:

• class: Standard
• cost: $0.00
• type: Calculated
• carrier: UPS
• service: UPS Ground
• transit: 4-7 Days

seller hydraulicylind:

• # reviews: 5654
• city: Chicago, Illinois
• rating: 99.8%

returns hydraulicylind:

• policy: Returns Accepted
• paid by: Seller
• time: 30 Days
• method: Money back

general hydraulicylind:

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

offer hydraulicylind:

• started: February 5, 2026
• options: Ship-to-home
• best offers: True
• sold: 0
• quantity: 1
• availability: In Stock

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