--- title: ACURO AM34 from Hengstler description: Discover Hengstler's ACURO AM34, an ultra-compact absolute encoder for high precision and reliability in space-constrained applications. --- - [Home](https://www.hengstler.de/en/) - [Contact](https://www.hengstler.de/en/company/contact.php) - [Legal Details](https://www.hengstler.de/en/company/imprint.php) - Languages ![English](https://info.hengstler.com/hubfs/raw_assets/public/Hengstler_August2023/images/en.gif) - [deutsch ![deutsch ](https://info.hengstler.com/hs-fs/hubfs/de.gif?width=18&height=12&name=de.gif)](https://www.hengstler.de/de/) - [english ![english ](https://info.hengstler.com/hs-fs/hubfs/Hengstler_August2023/Images/en.gif?width=18&height=12&name=en.gif)](https://www.hengstler.de/en/) - [french ![french ](https://info.hengstler.com/hs-fs/hubfs/Hengstler_August2023/Images/fr.gif?width=18&height=12&name=fr.gif)](https://www.hengstler.de/fr/) - [italian ![italian ](https://info.hengstler.com/hs-fs/hubfs/Hengstler_August2023/Images/it.gif?width=18&height=12&name=it.gif)](https://www.hengstler.de/it/) - 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[Main Isolation Relays](https://www.hengstler.de/en/applications/relays/main_isolation_relays/main_isolation_relays.php) - [Printers & Cutters](https://www.hengstler.de/en/applications/printer_cutter/printers_cutters.php) - [Company](https://www.hengstler.de/en/company/index.php) - [Profile](https://www.hengstler.de/en/company/profile.php) - [Hengstler](https://www.hengstler.de/en/company/hengstler.php) - [History](https://www.hengstler.de/en/company/history.php) - [Why Hengstler?](https://www.hengstler.de/en/company/why_hengstler.php) - [Quality and Environment](https://www.hengstler.de/en/company/quality_and_environment.php) - [Waste of Electrical and Electronic Equipment](https://www.hengstler.de/en/company/weee.php) - [Integrity And Compliance](https://www.hengstler.de/en/search/integrity_and_compliance.php) - [Career](https://www.hengstler.de/en/career/index.php) - [Open positions](https://www.hengstler.de/en/career/career.php) - [Apprenticeship](https://www.hengstler.de/en/career/apprenticeship.php) - 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[Support request](https://www.hengstler.de/en/support/support_request.php) - [Offer / order request](https://www.hengstler.de/en/support/offer_order_request.php?i=p0) - [General request](https://www.hengstler.de/en/support/general_request.php) - [Repair request](https://www.hengstler.de/en/support/repair_request.php) - [Sales Partners](https://www.hengstler.de/en/support/sales_partners.php) - [Partner-Shop](https://shop.hengstler.de/en) # Unlock Maximum Performance with the New ACURO® AM34 – Now with SIL2 & SIL3 Safety and a 6 mm Hub Shaft Experience precision, safety, and compact power. The ACURO® AM34 absolute encoder is designed for high-performance servo drives in the most space-constrained applications. ![AM34-group_800x444](https://info.hengstler.com/hubfs/AM34-group_800x444.png) ## Maximize Servomotor Performance with the ACURO® AM34 The ACURO® AM34 is now available with a **6 mm hub shaft**, offering even greater flexibility for compact, high-performance servo drives. Designed for compact spaces, the ACURO® AM34 has a low installation depth (just 21.1 mm) and is easy to mount. Unlike conventional encoders, it generates no heat—allowing servo motors to run at maximum speed without derating. [Speak to an Expert](https://info.hengstler.com/en/am34-von-hengstler#contact) ![praezise](https://info.hengstler.com/hs-fs/hubfs/Landingpages_2024/LinkedIn_Campaigns/AM34/praezise.png?width=150&height=150&name=praezise.png "praezise") ## Precise Our ACURO® AM34 achieves an accuracy better than ± 120 arc seconds. ![komptakt](https://info.hengstler.com/hs-fs/hubfs/Landingpages_2024/LinkedIn_Campaigns/AM34/komptakt.png?width=150&height=150&name=komptakt.png "komptakt") ## Compact The installation depth of the ACURO® AM34 is <20 mm. ![temperatur](https://info.hengstler.com/hs-fs/hubfs/Landingpages_2024/LinkedIn_Campaigns/AM34/temperatur.png?width=150&height=150&name=temperatur.png "temperatur") ## Robust The operating temperature range is from -40 to +120 °C. ### Functional Safety The Hengstler ACURO® AM34 is engineered for functional safety, meeting SIL2 and SIL3 certifications to ensure precise, reliable feedback in safety-critical environments. Its robust design makes it ideal for automation, robotics, and machinery, where safety, accuracy, and compliance are essential.   [Speak to an Expert](https://info.hengstler.com/en/am34-von-hengstler#contact)  ![SIL2-and-SIL3-Logo](https://info.hengstler.com/hubfs/SIL2-and-SIL3-Logo.png "SIL2-and-SIL3-Logo") ### **Designed for Maximum Performance** Unlike conventional encoders, the ACURO® AM34 **generates no heat**, enabling **high-speed servo operation without derating.** Say goodbye to performance limitations and get more out of your servo systems. ✅ **New 6 mm Hub Shaft** – Expanded compatibility for more applications **✅ Ultra-Compact Design** – Ideal for confined spaces ✅ **Zero Heat Generation** – Enables full-speed motor operation ✅ **High Resolution** – 16 to 20-bit singleturn, 12-bit multiturn ✅ **Fast, Easy Installation** – Large mounting tolerances (±0.5 mm axial, ±0.1 mm radial) ✅ **Robust Digital Interface** – BiSS/SSI for seamless automation   With the **ACURO® AM34**, **derating is a thing of the past**. Traditionally, motors require **speed or load reductions** to prevent overheating—but not anymore. The **AM34’s zero-heat generation** ensures **servo motors can run at full speed** without performance limitations. This not only **maximizes efficiency** but also **extends the lifespan of your equipment**, reducing downtime and maintenance costs. [![Free Brochure Download](https://hubspot-no-cache-eu1-prod.s3.amazonaws.com/cta/default/26885481/interactive-117315561412.png)](https://info.hengstler.com/hs/cta/wi/redirect?encryptedPayload=AVxigLI1HjYPUM4Ox1HCV4POHWLCtvAaNhhQj0G9WWVa7oDciEx7dyBzzetEBQ0vUbuT33VMWuhNwflLRiQkXw%2BnO8grytm5Y8gFpMj%2BYySfMVhjAieH8RM0PGvAd1nq40u%2BUFCMxWnT0CKRF9sGx9wI2LzH8UtfqDvT6ImbBc%2FsD149cnvPa5h6fbJzUTeH%2FRAYWyRAK3930Me8zZmKe13mJHYnlt3gzcrYnagO2%2BetXOwqYGYVDrZ6pleyksbDj%2Fr0dvqVbnKSBJ7jU7wwrcSH6Dm21LsFIdRVuekfEVC1nis%3D&webInteractiveContentId=117315561412&portalId=26885481&hsLang=en) ![ACURO AM34 Absolute Encoder](https://info.hengstler.com/hubfs/Landingpages_2024/LinkedIn_Campaigns/AM34/AM34.png "ACURO AM34 Absolute Encoder") ![agv-cobots](https://info.hengstler.com/hubfs/Landingpages_2024/LinkedIn_Campaigns/AM34/agv-cobots.jpg "agv-cobots") ### Ideal for AGV + Cobots For AGVs and cobots, every millimeter of space matters. The ACURO® AM34’s ultra-compact design ensures seamless integration, while its precision and robustness deliver reliable feedback for smooth, safe operation. The new 6 mm hub shaft enhances compatibility, making integration even easier in space-constrained designs.  With the ACURO® AM34, you can ensure that your AGVs and cobots are not only compact but also perform with accuracy and reliability. ![cost-reduction](https://info.hengstler.com/hs-fs/hubfs/Landingpages_2024/LinkedIn_Campaigns/AM34/cost-reduction.jpg?width=800&height=398&name=cost-reduction.jpg "cost-reduction") ### Lower Costs & Simplify Integration With its plug-and-play installation, heat-free operation, and long lifespan, the ACURO® AM34 helps you reduce production costs and improve overall system efficiency. Don't wait any longer to discover the benefits of the ACURO® AM34. Contact us today to learn more about how this revolutionary absolute encoder can help you reduce production costs and enhance your overall operations. ## Talk to an Expert ## Hengstler GmbH Uhlandstr. 49 D-78554 Aldingen Phone: +49 (0) 7424-89-0 Fax: +49 (0) 7424-89-500 Email: [info@hengstler.com](mailto:info@hengstler.com) ## Counters - [Totalizing counters](https://www.hengstler.de/en/s_c100101/Counters/Totalizing_counters/) - [Preset counters](https://www.hengstler.de/en/s_c100102/Counters/Preset_counters/) - [Multifunctional counters](https://www.hengstler.de/en/s_c100103/Counters/Multifunctional_counters/) - [Time counters](https://www.hengstler.de/en/s_c100104/Counters/Time_counters/) - [Tachometers](https://www.hengstler.de/en/s_c100105/Counters/Tachometers/) - [Position displays](https://www.hengstler.de/en/s_c100106/Counters/Position_displays/) - [Proximity switches](https://www.hengstler.de/en/s_c100107/Counters/Proximity_switches/) - [> Product Finder](https://www.hengstler.de/en/f_c1001/Counter/) ## Rotary encoders - [Absolute rotary encoders](https://www.hengstler.de/en/s_c100301/Rotary_encoders/Absolute_rotary_encoders/) - [Incremental rotary encoders](https://www.hengstler.de/en/s_c100302/Rotary_encoders/Incremental_rotary_encoders/) - [Sinus rotary encoders](https://www.hengstler.de/en/s_c100303/Rotary_encoders/Sinus_rotary_encoders/) - [Resolvers](https://www.hengstler.de/en/s_c100305/Rotary_encoders/Resolvers/) - [> Product Finder](https://www.hengstler.de/en/f_c1003/Encoder) ## Relays - [Safety relays](https://www.hengstler.de/en/s_c100501/Relays/Safety_relays/) - [Bistable relays](https://www.hengstler.de/en/s_c100502/Relays/Bistable_relays/) - [High-voltage relays](https://www.hengstler.de/en/s_c100503/Relays/High-voltage_relays/) - [Power relays](https://www.hengstler.de/en/s_c100504/Relays/Power_relays/) - [Mains isolation relay](https://www.hengstler.de/en/s_c100505/Relays/Load_disconnecting_relays/) - [> Product Finder](https://www.hengstler.de/en/f_c1005/Relays/) ## Printers & Cutters - [Printers](https://www.hengstler.de/en/s_c100401/Printers_cutters/Printers/) - [Cutters](https://www.hengstler.de/en/s_c100402/Printers_cutters/Cutters/) - [> Product Finder](https://www.hengstler.de/en/f_c1004/Printer_Cutter/) ## Support - [Technical Support](https://www.hengstler.de/en/support/support_request.php) - [Distribution partners](https://www.hengstler.de/en/contact/salespartner.php) - [Request information](https://www.hengstler.de/en/contact/contactform.php) - [Imprint](https://www.hengstler.de/en/company/imprint.php) - [Data privacy](https://www.hengstler.de/en/company/data_privacy.php)