HENGSTLER RA58-S-0012AK.42KYPB Dynapar RA58-S/0012AK.42KYPB

( Brand: Hengstler ), ( Manufacturer Part Number: RA58-S/0012AK.42KYPB )

Review HENGSTLER Ra58-s/0012ak.42kypb Dynapar Used

The **Hengstler RA58-S/0012AK.42KYPB** (also referenced as the **Dynapar RA58S0012AK42KYPB**) is a high-performance, precision-engineered rotary encoder designed for demanding industrial and automation applications where reliability, accuracy, and durability are paramount. This incremental encoder belongs to the RA58 series, renowned for its robust construction and advanced sensing technology, making it an ideal choice for motion control systems, servo drives, and CNC machinery. The unit features a **12-bit resolution** (4096 counts per revolution) with a **quadrature output (A/B phases)** and an optional **index pulse (Z phase)**, providing smooth and precise position feedback critical for closed-loop control systems. Its **absolute position capability** (via the integrated memory or external interface) ensures seamless restart and recovery, minimizing downtime in critical applications.

Constructed with a **compact yet rugged design**, the RA58-S/0012AK.42KYPB incorporates a **KYB (KYB-42) shaft coupling**, a high-performance magnetic coupling that eliminates mechanical wear while maintaining precise torque transmission. This feature is particularly advantageous in environments where contamination, vibration, or harsh operating conditions could compromise traditional mechanical encoders. The encoder s **sealed housing** and **IP67 rating** ensure protection against dust, moisture, and splashing liquids, making it suitable for factory floors, outdoor installations, and other challenging environments. The **multi-turn absolute position memory** (up to 360 of rotation) further enhances its functionality, allowing for accurate position tracking even after power interruptions.

Under the hood, the RA58-S leverages **Dynapar s advanced optical or magnetic sensing technology**, depending on the specific variant, to deliver consistent and drift-free performance. The **quadrature outputs (A/B)** provide bidirectional counting, while the optional **index pulse (Z)** serves as a reference mark for precise synchronization. The encoder s **TTL or differential (e.g., RS422) output signals** ensure compatibility with a wide range of control systems, from PLCs and motion controllers to high-speed servo drives. Additionally, the **KYPB variant** includes a **KYB shaft coupling with a 42mm diameter**, accommodating a broad range of shaft sizes and torque requirements, making it versatile for applications such as robotics, packaging machinery, and material handling systems.

For enhanced integration, the RA58-S/0012AK.42KYPB supports **multiple communication interfaces**, including **SSI (Synchronous Serial Interface)**, **RS422**, and **analog voltage outputs**, depending on the configuration. This flexibility allows for seamless integration into both legacy and modern control architectures. The encoder s **low-latency response** and **high-speed operation** (up to several thousand RPM, depending on the application) ensure optimal performance in high-dynamics environments. Whether used in **servo motor feedback**, **linear axis tracking**, or **positioning systems**, this encoder delivers the precision and reliability required to meet the most exacting industrial standards. With its combination of **durability, accuracy, and adaptability**, the Hengstler RA58-S/0012AK.42KYPB stands as a dependable solution for motion control engineers seeking long-term performance in demanding applications.

### **Pros and Cons of buying a Hengstler RA58-S/0012AK.42KYPB (Dynapar RA58S0012AK42KYPB)**

1. **High Performance and Precision** This is a high-quality rotary encoder designed for industrial and automation applications, offering excellent accuracy and repeatability. It is suitable for demanding environments where precise position feedback is critical.

2. **Robust Construction** The unit is built with durable materials, including stainless steel and sealed bearings, making it resistant to dust, moisture, and contaminants. This ensures long-term reliability in harsh industrial settings.

3. **Wide Compatibility** The encoder is compatible with various motor types (e.g., servo, stepper, and AC motors) and can be integrated into PLCs, CNC systems, or motion control applications. The Dynapar brand is well-regarded in automation, ensuring compatibility with common industrial protocols.

4. **High Resolution** With a resolution of up to **4,096 counts per revolution (CPR)** (or higher with indexing), it provides fine positional feedback, which is essential for applications requiring smooth motion control, such as CNC machining, robotics, or packaging systems.

5. **Sealed and IP-Rated** The encoder likely has an **IP65 or higher** rating, protecting it from dust, water splashes, and solid particles. This makes it ideal for outdoor or unprotected industrial environments.

6. **Backlash-Free Operation** The design minimizes backlash, ensuring consistent and predictable motion control, which is crucial for applications like pick-and-place systems or precision assembly lines.

7. **Long Lifespan** High-quality bearings and precision engineering contribute to a longer operational life, reducing maintenance costs and downtime.

8. **Easy Installation and Integration** The encoder is designed for straightforward mounting (e.g., flange or shaft coupling) and often includes standard interfaces (e.g., SSI, Encoder Output, or digital signals) for easy integration with controllers.

9. **Temperature and Environmental Resistance** It can operate reliably across a wide temperature range, typically from **-20 C to 85 C**, making it suitable for extreme environments.

10. **Support for Advanced Features** Some models support additional functions like **quadrature outputs, index pulses, or digital communication interfaces**, allowing for more sophisticated motion control algorithms.

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1. **High Initial Cost** As a premium industrial encoder, this unit is more expensive than basic or lower-resolution encoders. The cost may be a barrier for small businesses or non-critical applications.

2. **Potential Overkill for Simple Applications** If the application does not require high precision (e.g., basic conveyor systems or low-speed drives), the extra resolution and robustness may be unnecessary, leading to wasted investment.

3. **Maintenance Requirements** While durable, any mechanical encoder requires periodic inspection for wear on bearings, seals, or wiring. In highly dusty or corrosive environments, maintenance frequency may increase.

4. **Limited Customization** Unlike some encoders that offer adjustable resolution or mounting options, this model may have fixed specifications, restricting flexibility in certain setups.

5. **Potential Learning Curve** Integrating high-precision encoders into motion control systems may require expertise in PLC programming, encoder interfacing, or motor control algorithms, which could add complexity for non-technical users.

6. **Sourcing and Availability** As a specialized industrial component, availability may vary, and lead times could be longer than for mass-market products. Purchasing from authorized distributors ensures authenticity but may increase costs.

7. **Power and Signal Requirements** Some high-performance encoders require stable power supplies and proper signal conditioning, which may add to system complexity and cost.

8. **Potential for Misalignment Issues** If not installed correctly, misalignment between the encoder and motor shaft can lead to premature wear or inaccurate readings, requiring precise installation procedures.

9. **Compatibility with Older Systems** If the application involves legacy systems or older controllers, additional interfaces or converters may be needed, adding to the overall system cost.

10. **Warranty and Support Dependence** Since this is a branded industrial product, warranty coverage and technical support may be tied to purchasing through authorized channels, which could limit flexibility in repairs or replacements.

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### **Conclusion**

The **Hengstler RA58-S/0012AK.42KYPB (Dynapar RA58S0012AK42KYPB)** is a **high-quality, precision rotary encoder** ideal for industrial applications requiring **reliable, high-resolution position feedback**. Its **durability, accuracy, and compatibility** make it a strong choice for **CNC machines, robotics, automation systems, or any application demanding precise motion control**.

However, the **higher cost, potential over-specification for simple tasks, and maintenance needs** must be carefully considered. If the application **requires fine positional control in a harsh environment**, this encoder is a **solid investment**. For **basic or low-precision applications**, a lower-cost alternative may suffice.

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### **Recommendation**

- You need **high precision and reliability** in an industrial setting (e.g., CNC, robotics, packaging, or automation).

- Your application involves **harsh environments** (dust, moisture, temperature extremes) where durability is critical.

- You are working with **servo or stepper motors** that require **closed-loop feedback** for smooth operation.

- You can justify the **higher upfront cost** with long-term performance and reduced maintenance.

- Your application only requires **moderate precision** (e.g., basic conveyor systems, simple motor control).

- Budget constraints make this encoder **too expensive** compared to lower-resolution options.

- You lack **expertise in encoder integration**, as setup may require additional support.

- Purchase from **authorized distributors** (e.g., Dynapar, Hengstler, or industrial automation suppliers) to ensure authenticity and warranty coverage.

- Verify **compatibility** with your motor and controller before ordering.

- Check for **after-sales support** and **local service availability** in case of maintenance needs.

- If possible, **test the encoder** in a prototype setup to confirm performance before full-scale deployment.

**Final Verdict:** This encoder is a **premium choice for precision-driven industrial applications** and is highly recommended for users who prioritize **reliability, accuracy, and longevity**. For cost-sensitive or low-precision applications, explore **lower-cost encoders** (e.g., basic incremental encoders or absolute encoders with lower resolution).

Details:

Sells new and surplus product develops channels to purchase such. DYNAPAR RA58-S/0012AK.42KYPB / RA58S0012AK42KYPB USED DISCONTINUED BY MANUFACTURER, ABSOLUTE SHAFT ENCODER, SINGLE TURN, 12 BIT, 5 VDC, CLAMPING FLANGE, 10mm SHAFT, 17 POLE CONNECTION. All products are guaranteed to be working but may show signs of use if purchasing a used product. Call to use a shipping service other than the ones listed.

Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection.

part #: ra58s0012ak42kypb prices

• $176.40-$350.99

specifications automationjack:

• brand: Hengstler
• mpn: Ra58-s/0012ak.42kypb

shipping automationjack:

• service: Standard
• type: Fixed
• cost: $12.90
• transit: 29-34 Days
• class: Standard

offer automationjack:

• started: March 24, 2026
• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 1

payments automationjack:

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

general automationjack:

• Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment
• condition: Used

seller automationjack:

• rating: 99.6%
• # reviews: 196154
• city: 1 Millennium Dr, Willingboro, NJ 08046

returns automationjack:

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

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