AMETEK 28F41-05-039 Haydon Kerk Stepper Linear Actuator

( Brand: Ametek ), ( Manufacturer Part Number: 28F41-05-039 ), ( Part Type: Actuator Linear )

Review AMETEK Haydon Kerk Stepper Linear Actuator Free Shipping

The **Ametek Haydon Kerk 28F41-05-039 Stepper Linear Actuator** is a precision-engineered, high-performance motion control device designed for applications requiring reliable, repeatable, and smooth linear movement with exceptional positional accuracy. Part of the robust **28F41 series**, this actuator combines the durability of a **hybrid stepper motor** with the efficiency of a **ball screw drive mechanism**, delivering seamless motion over a **50 mm (2-inch) stroke length** with a **0.01 mm (0.0004-inch) resolution** per microstep. Built to withstand demanding environments, the actuator features a **stainless steel ball screw** and **ceramic-coated ball bearings**, ensuring minimal friction, extended wear life, and resistance to corrosion making it ideal for industrial automation, medical equipment, laboratory instrumentation, and precision assembly systems. Its **compact yet sturdy design** integrates a **5-phase hybrid stepper motor** with a **lead screw pitch of 0.5 mm**, allowing for precise incremental movement while maintaining high torque output (up to **0.5 Nm at 2.5 V phase**) for smooth acceleration and deceleration. The actuator is equipped with a **precision-ground guide rail system** to prevent lateral deviation, ensuring stable and vibration-free operation even under dynamic loads. Additionally, its **low-profile housing** and **integrated mounting flanges** facilitate easy integration into existing machinery, while the **sealed bearing assembly** enhances protection against dust, moisture, and contaminants. Whether used in automated testing equipment, CNC machining, or robotic positioning systems, this actuator provides the reliability and precision needed for critical applications where consistency and repeatability are paramount. With its **open-loop control capability**, it pairs seamlessly with standard stepper motor drivers, offering a cost-effective yet high-performance solution for linear motion control.

### **Pros and Cons of buying a Ametek 28F41-05-039 (Haydon Kerk Stepper Linear Actuator)**

1. **High Precision and Repeatability** The stepper motor-driven design ensures accurate positioning, making it ideal for applications requiring fine control, such as automation, robotics, or CNC systems.

2. **Reliable Performance** Haydon Kerk is a well-established brand known for durable, low-maintenance actuators, reducing downtime and repair costs over time.

3. **Compact and Space-Efficient** The linear actuator is designed to fit into tight spaces, which is beneficial for applications with limited installation room.

4. **Smooth Operation** The stepper motor provides consistent motion without the need for external lubrication, reducing wear and tear.

5. **Compatibility with Automation Systems** Works well with PLCs, CNC controllers, and other industrial automation setups, making it versatile for various applications.

6. **Long Lifespan** Properly maintained, stepper actuators can last for years, offering a strong return on investment.

7. **Quiet Operation** Compared to some pneumatic or hydraulic alternatives, stepper-driven actuators operate more quietly, reducing noise in sensitive environments.

1. **Higher Initial Cost** Stepper linear actuators are generally more expensive upfront than simpler alternatives like pneumatic or hydraulic actuators.

2. **Power Requirements** Stepper motors require precise power delivery (often from a dedicated driver) to avoid issues like lost steps or overheating, which may add complexity to the system.

3. **Limited Speed and Force at High Speeds** While capable of precise low-speed movement, stepper actuators may struggle with high-speed applications due to motor torque limitations.

4. **Heat Management** Continuous operation at high loads can generate heat, requiring cooling solutions (such as fans or heat sinks) to prevent overheating and performance degradation.

5. **Dependence on Power Supply Stability** Fluctuations in voltage or power interruptions can cause lost steps or system malfunctions, requiring stable power sources.

6. **Maintenance Sensitivity** Unlike pneumatic systems, stepper actuators do not self-lubricate, meaning periodic maintenance (e.g., checking leadscrews or bearings) is necessary to maintain performance.

7. **Limited Travel Range Options** The 39mm travel length may not be sufficient for applications requiring longer strokes, necessitating multiple actuators or alternative solutions.

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### **Conclusion**

The **Ametek 28F41-05-039 Haydon Kerk stepper linear actuator** is a high-quality, precision-driven solution ideal for applications requiring **accurate, repeatable, and low-maintenance linear motion**. Its strengths lie in **reliability, compactness, and compatibility with automation systems**, making it a strong choice for industrial, robotic, or CNC applications where precision is critical.

However, its **higher cost, power dependency, and limitations in high-speed or high-force applications** may make it less suitable for budget-conscious projects or applications requiring extreme speed or load capacity. Additionally, users must ensure proper **power supply stability, cooling, and maintenance** to maximize performance and longevity.

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### **Recommendation**

- You need **high precision and repeatability** in a controlled environment.

- Your application involves **automation, robotics, or CNC machining** where stepper control is advantageous.

- You can accommodate the **initial cost** and ensure proper power delivery and cooling.

- Space constraints require a **compact, motorized solution** over pneumatic or hydraulic alternatives.

- You require **longer travel distances** (may need multiple actuators or a different model).

- Your application demands **extremely high speeds or heavy loads**, where servo or hydraulic actuators may perform better.

- Budget constraints are a priority, as stepper actuators are more expensive than simpler pneumatic or mechanical solutions.

For most **precision-driven industrial or automation applications**, this actuator is a **strong, reliable choice** provided the system design accounts for its requirements.

Details:

The previous owner verifies this with documentation after removal from service. Model Number: 28F41-05-039. Cosmetic condition: C4 - Used Good: Good overall used condition. High reliability in specialty industrial environments.

No dents, dings or cracks. Durable construction for reliable operation. Compact design suitable for limited-space applications. Specifications: Type: Stepper Linear Actuator.

Linear Motion Precision. Manufacturer: AMETEK Haydon Kerk. Data Sanitation: S2 - Non-Data: Device has been assessed as a device that does not contain data, or data physically removed. Suitable for integration into automated motion control systems.

Key Features: Stepper motor-driven actuator for precise linear positioning. Compatible with Rotary Linear Motion Systems. Known for its reliability and specialty use, this linear actuator provides accurate positioning motion control in environments that require specialized equipment. Some light scratches or scuffs.

Included: No Accessories Included. Mounting hardware. Not Included: Power adapter/cable. Controller or driver unit.

Typical Applications: Specialty and niche industrial uses. Designed for Industrial Automation. Robust construction ensures long service life.

part #: 28f4105039 price

• $44.99

specifications linactuat:

• brand: Ametek
• mpn: 28f41-05-039
• part type: Actuator Linear

seller linactuat:

• city: Falls Church, Virginia
• # reviews: 35119
• rating: 99.4%

payments linactuat:

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

general linactuat:

• Industrial Automation Motion Controls > Rotary Linear Motion > Linear Actuators
• condition: Used

shipping linactuat:

• class: Standard
• transit: 3-9 Days
• service: Standard
• type: Fixed
• cost: $0.00

returns linactuat:

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

offer linactuat:

• best offers: True
• quantity: 6
• options: Ship-to-home
• availability: In Stock
• sold: 0
• started: February 10, 2026

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