RENISHAW RGH24X30A00A Optical Linear Encoder Readhead Digital 5V 120MA

( Brand: Renishaw ), ( Manufacturer Part Number: RGH24X30A00A ), ( Part Type: Digital Linear )

Review RENISHAW Optical Linear Encoder Readhead Digital Out 5v 120ma

The **Renishaw RGH24X30A00A** is a high-performance optical linear encoder readhead designed for precision motion control applications where accuracy, reliability, and durability are paramount. Part of Renishaw s renowned **XM series**, this digital readhead operates on a **5V power supply** with a **120mA current draw**, making it compatible with a wide range of control systems while delivering exceptional positional feedback. Engineered with **high-resolution optical scales** (typically paired with Renishaw s **GS24 or GS30 series** glass or metal scales), the RGH24X30A00A provides **sub-micron positioning accuracy**, ensuring seamless integration into CNC machines, semiconductor manufacturing equipment, robotics, and automated assembly lines.

Featuring a **compact yet robust design**, this readhead is built to withstand demanding industrial environments, with an **IP65-rated enclosure** that protects against dust, chips, and light splashing. Its **modular construction** allows for easy installation and alignment, while the **sealed optical path** ensures long-term stability and resistance to contamination, reducing maintenance requirements. The device supports **high-speed data transmission** via **TTL or RS-422 interfaces**, delivering **quadrature or absolute position data** with minimal latency, making it ideal for applications requiring real-time feedback. Additionally, the **low-profile mounting bracket** and **precise centering mechanism** simplify integration into existing systems, whether in linear slides, gantry systems, or rotary stages.

Renishaw s proprietary **optical encoding technology** ensures superior signal integrity, even under dynamic conditions, while the **self-diagnostic capabilities** help monitor system health and prevent downtime. The RGH24X30A00A is also **compatible with Renishaw s i5 and XM motion controllers**, as well as third-party systems, offering flexibility in control architecture. Whether used in **high-precision machining, wafer inspection, or automated material handling**, this readhead delivers the **consistency and repeatability** required for next-generation manufacturing processes. With a **lifetime warranty** and a reputation for **industry-leading reliability**, the RGH24X30A00A is a trusted choice for engineers and manufacturers demanding the finest in linear position sensing technology.

The Renishaw RGH24X30A00A is a high-precision optical linear encoder readhead designed for industrial applications requiring accurate position feedback. Below is a detailed breakdown of its pros and cons, followed by a conclusion and recommendation.

---

### **Pros of the Renishaw RGH24X30A00A**

1. **Exceptional Precision and Resolution**

The Renishaw RGH24X30A00A is known for its high resolution, typically offering sub-micron accuracy (depending on the scale used). This makes it ideal for applications requiring fine positioning control, such as CNC machines, semiconductor equipment, or precision robotics. The encoder s optical design minimizes backlash and hysteresis, ensuring consistent performance over long distances.

2. **Reliability and Durability**

Renishaw is a well-established brand in the precision measurement and motion control industry, with a reputation for robust and long-lasting components. The readhead is designed to withstand harsh environments, including exposure to dust, moisture (with proper sealing), and temperature variations. The absence of moving mechanical parts (other than the optical system) reduces wear and tear, contributing to a longer operational lifespan.

3. **High Compatibility and Integration**

The RGH24X30A00A is part of Renishaw s modular encoder family, which means it can be easily integrated with a wide range of scales (e.g., RGH24, RGH32, or RGH50 series) and interfaces. It supports various communication protocols, including Renishaw s proprietary interfaces (e.g., Renishaw s ENCODER interface) as well as industry-standard options like SSI (Synchronous Serial Interface) or digital outputs. This flexibility makes it adaptable to different control systems, PLCs, or motion controllers.

4. **Low Maintenance Requirements**

Optical encoders like this one require minimal maintenance compared to mechanical encoders (e.g., rotary or linear potentiometers). There are no brushes, contacts, or lubrication points to service, reducing downtime and operational costs. The sealed design further protects against contamination, which is critical in cleanroom or automated manufacturing environments.

5. **High Speed and Dynamic Performance**

The readhead is capable of high-speed operation, often exceeding 10 m/s (depending on the scale and application). Its digital output provides fast, jitter-free position feedback, which is essential for high-speed machining, pick-and-place robots, or other dynamic motion applications. The 5V, 120 mA power supply is standard for industrial use, ensuring compatibility with most control systems.

6. **Backlash-Free Operation**

Unlike mechanical encoders that may introduce backlash due to physical linkages, optical encoders provide a direct, non-contact measurement of position. This eliminates errors associated with mechanical play, making it suitable for applications where precision is critical, such as in precision grinding or inspection systems.

7. **Wide Range of Applications**

- **CNC Machining:** For precise tool positioning and feed control.

- **Semiconductor and Electronics:** In wafer handling or lithography systems where sub-micron accuracy is required.

- **Automotive:** For assembly lines, robotics, or engine testing equipment.

- **Medical Devices:** In surgical robots or precision instrumentation.

- **Aerospace:** For testing or assembly applications where reliability is paramount.

8. **Support and Documentation**

Renishaw provides comprehensive technical support, including detailed datasheets, installation guides, and software tools for integration. Their global presence ensures access to authorized distributors and service centers, which can be invaluable for troubleshooting or repairs.

9. **Scalability**

The readhead can be paired with different scale lengths (e.g., 24 mm, 32 mm, or 50 mm pitch) to suit specific application requirements. This scalability allows users to choose the resolution and range that best fit their needs without replacing the entire system.

10. **Industry Standard Compliance**

Renishaw components often meet or exceed industry standards for quality and performance, such as ISO 9001 certification. This compliance can be important for manufacturers working in regulated industries (e.g., aerospace, medical, or automotive).

---

### **Cons of the Renishaw RGH24X30A00A**

1. **High Cost**

Renishaw encoders are premium-priced compared to generic or lower-end optical encoders. The cost can be prohibitive for small-scale operations, startups, or applications where budget constraints are a significant factor. The total cost of ownership may also include expenses for scales, mounting hardware, and integration, which can add up quickly.

2. **Complex Installation and Setup**

While Renishaw provides detailed documentation, integrating the readhead into a system can be technically demanding. Proper alignment with the scale, cable management, and interface configuration require expertise, especially for non-experienced users. This may necessitate hiring specialized technicians or consulting with Renishaw s support team, adding to the overall cost.

3. **Limited Availability of Spare Parts**

As a high-end component, spare parts for the RGH24X30A00A may not be as readily available as for more common encoders. If the readhead fails, sourcing replacements or repairs might take longer than with more widely used alternatives. This could lead to extended downtime in critical applications.

4. **Power and Interface Requirements**

The readhead operates at 5V and draws 120 mA, which is standard for industrial use but may require careful consideration in power-sensitive systems. Additionally, while it supports multiple interfaces, compatibility with certain motion controllers or PLCs might require additional adapters or software, adding complexity to the setup.

5. **Environmental Limitations**

- **High Vibration:** While it handles moderate vibrations well, excessive shock or vibration can degrade performance over time.

- **Extreme Temperatures:** While Renishaw encoders are robust, prolonged exposure to temperatures outside their specified range (typically -10 C to 60 C) can affect accuracy or reliability.

- **Moisture and Corrosion:** Although sealed, prolonged exposure to high humidity or corrosive environments may require additional protective measures.

6. **Learning Curve for Users**

The advanced features of the RGH24X30A00A, such as its high resolution and digital output, may require users to invest time in training or familiarization. Operators or engineers unfamiliar with precision motion control systems might struggle to optimize its performance or troubleshoot issues effectively.

7. **Dependence on Renishaw Ecosystem**

While the readhead is versatile, its full potential is often realized when paired with Renishaw s proprietary scales and software tools. Users who rely heavily on Renishaw s ecosystem may find it difficult to switch to alternative components without compatibility issues. This can limit flexibility in system design or upgrades.

8. **Potential for Overkill in Some Applications**

For applications where lower precision is acceptable (e.g., simple linear actuators or low-cost automation), the RGH24X30A00A may offer more resolution and features than necessary. In such cases, opting for a lower-cost encoder (e.g., a magnetic or incremental optical encoder) could be more cost-effective without sacrificing performance.

9. **Cable and Connectivity Considerations**

The readhead requires careful cable management to avoid signal interference or damage. Long cable runs or improper shielding can introduce noise into the signal, affecting accuracy. Users must ensure proper grounding and shielding practices to maintain performance.

10. **Limited Customization**

Unlike some generic encoders, the RGH24X30A00A offers limited customization options. Users cannot easily modify its resolution, output format, or physical dimensions without purchasing different models or scales. This lack of flexibility may be a drawback for applications with unique requirements.

---

### **Conclusion**

The Renishaw RGH24X30A00A optical linear encoder readhead is a high-performance, reliable, and precise component that excels in applications demanding sub-micron accuracy, low maintenance, and long-term stability. Its strengths lie in its exceptional resolution, durability, compatibility with Renishaw s ecosystem, and suitability for dynamic or high-speed motion control. These attributes make it an ideal choice for industries such as CNC machining, semiconductor manufacturing, aerospace, and medical devices, where precision and reliability are critical.

However, the encoder s high cost, complex installation, and potential overkill for simpler applications may not justify its purchase for budget-conscious or low-precision projects. Additionally, users must be prepared for the investment in training, integration, and potential long-term support costs. If the application requires cutting-edge precision and the budget allows for it, the RGH24X30A00A is a robust and future-proof choice. For less demanding applications, alternative encoders (e.g., magnetic linear encoders or lower-cost optical encoders) may offer a more economical solution without sacrificing performance.

---

### **Recommendation**

- Your application requires **sub-micron precision** (e.g., CNC machining, semiconductor equipment, or precision robotics).

- You are working in an **industry where reliability and long-term performance** are non-negotiable (e.g., aerospace, medical, or high-end manufacturing).

- You are already using **

Details:

Cable length : 3m. Renishaw Optical Linear Encoder Readhead. Supply voltage : 5V. This is a surplus item.

Current Rating: 120mA. Specifications: model #: RGH24X30A00A.

part #: rgh24x30a00a prices

• $362.00-$429.00

specifications linactuat:

• brand: Renishaw
• mpn: Rgh24x30a00a
• part type: Digital Linear

returns linactuat:

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

shipping linactuat:

• service: USPS First Class, USPS Priority Mail Padded Flat Rate Envelope, UPS Next Day Air
• carrier: USPS, UPS
• transit: 2-5 Days
• type: Calculated
• cost: $0.00
• class: Standard, Expedited, One-day

offer linactuat:

• availability: In Stock
• options: Ship-to-home
• quantity: 5
• started: June 10, 2026
• sold: 0
• best offers: True

payments linactuat:

• cash
• credit card: Mastercard
• wallet: Google-pay
• other

general linactuat:

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

seller linactuat:

• city: Osseo, Minnesota
• rating: 99.9%
• # reviews: 46532

Renishaw RGH24X30A00A Is Similar To:

• 402300xrmpd3h12l12cm3e2r1 Parker Deadal Travel Linear Actuator Renishaw Encoder (29.3% similar) For sale one good used condition Parker linear actuator. 243 motor bolt hole: part number: : 12 Renishaw encoder: RG24Z30F00AINPUT shaft diameter. No motor included. Unit comes as pictured, pulled from working light duty environment, guaranteed perfect order square overall length: about 21 W/O motor...(March 7th, 2018)
• 5189-4218 Hp Renishaw Encoder Linear (33.3% similar) Please pay close attention to the pictures. The original package was opened to make sure item is new and complete...(September 1st, 2017)
• A-9523-6365-02 Hp Renishaw Tape Scale Kit Long Encoder (37.9% similar) Please pay close attention to the pictures. This package was inspected thoroughly to ensure it is new. See pics for more details...(July 9th, 2018)
• Mros10055432-rgh22d05 Renishaw Linear Encoder Read Head New In Box (47.2% similar) If another carrier such as ups or FedEx is required to ship due the size, then shipping costs may change...(April 13th, 2018)
• Rch24 Renishaw Unused Linear Encoder Read Head Danaher Apparatus (50.7% similar) This unit was built for danger precision systems but never shipped. I am not even sure what it used for but is unused and includes linear motion equipment including Renishaw RCH24 as well other components. The ty raps were sealed across but I cut them for was going to attempt take it apart and sell ...(May 19th, 2018)
• Rgh22 R15d00 Renishaw 2 Linear (31.5% similar) Tested, in good working condition. The second encoder does not have same markings, however it is. 5UM readings on drop. 5 micron linear encoders with scales. Listing is for qty 2 Renishaw. Both tested to be working with...(September 3rd, 2017)
• Rgh22d05d00a Renishaw New Encoder (32.4% similar) Free shipping us only. 4 with box, 1 without...(August 1st, 2018)
• Rgh22x30f00 Renishaw Linear Encoder Readhead With Strip (55.6% similar) You are buying one Renishaw RGH22X30F00 linear encoder readhead with 71CM RGS20-S pitch tape strip. 75 per cm of pitch tape estimated retail price: 375. MWUPWSHX1 cf estimated retail price: 613. Surplus SAM's inc. 50 readhead encoder estimated retail price...(June 29th, 2018)
• Rgh22y30f00 Renishaw Read Head Linear (34.8% similar) Not affecting the part. See pics B1. Renishaw RGH22Y30F00 read head linear. 1 m resolution re-timed clean surplus item. Cord has been spliced...(October 8th, 2017)
• Rgh24 Renishaw Incremental Linear Encoder Scale Analog Readhead (51.1% similar) Pre-owned and removed from a working system...(April 18th, 2018)
• Rgh24d15d00a Renishaw New Analog Linear Encoder Readhead (53.7% similar) 5m cable, 5UM resolution, pristine un-used condition. Power SUPPLY5 v 5, 120 ma un terminated vibration operating 100 m s2 max 55 Hz to hassock non-operating S2, 6 ms sine operating TEMPERATURE0 c : IP40INTERFACE: IP20 measuring standard gold plated steel tape with protective lacquer or polyester ...(January 6th, 2019)