AC servo motor
Beckhoff Automation AM8000
Beckhoff's main synchronous servo motor range in seven flange sizes, offered with One Cable Technology so power and digital feedback share a single cable to the drive.
Key specifications
| Continuous torque (max) | 129 Nm |
|---|---|
| Speed (max) | 12,000 rpm |
| Supply | 100-480 Vac drive systems (AM8012 page lists 100-230 Vac for small sizes) |
| Feedback | OCT digital absolute encoder (24-bit, SIL 2 capable), resolver |
| Overload | up to 5x |
| Frame count | 7 |
Summarised in our own words from Beckhoff Automation GmbH & Co. KG's published data; series maxima, individual models vary. Last checked 2026-10-29. Source 1 · Source 2
Notes on this data
Standstill torque 0.2-129 Nm stored as torque_Nm_cont_max. Flange sizes F1-F7 (F1 = 40 mm, F4 = 87 mm per individual pages); other mm values not on overview. IP rating and series peak torque not published on pages checked. Increased-inertia AM8500 and stainless AM8800 variants exist but were not read.
Specify Motion is not affiliated with Beckhoff Automation GmbH & Co. KG. Beckhoff Automation and AM8000 are used only to identify the product. Comparisons use published figures; always confirm against the current datasheet.
Typical applications
Alternatives that meet or exceed these figures
Engineers often come to us with a Beckhoff Automation part number and leave with an alternative that is easier to source, quicker to deliver or a better fit for the machine. These 3 series from our supply network are the closest match on published figures.
Kinco's established AC servo motor range from 40 to 180 mm frames, covering 50 W to 7.5 kW and up to 48 Nm rated torque. Standard feedback is a 2500-line incremental encoder with Hall commutation, with absolute options and a resolver on the 180 mm frame. Pairs with FD2S and CD2S drives.
View series →Compact Kinco AC servo motors from 50 W to 3 kW with absolute encoders (17-bit single-turn or 16-bit multi-turn), in 40-130 mm frames for use with FD2S and CD2S drives.
View series →Leadshine's AC servo motors for the EL8/EL7/EL6 drives: ELM1 is the economy line and ELM2 the general-purpose line, both with 23-bit absolute encoders, IP65/IP67 sealing and up to 3.5x overload. The catalogue extends ELM2M to 22 kW and previews a 26-bit ELM3.
View ELM1 / ELM2 AC Servo Motors →Figures are the highest published for each series and are not always measured the same way. A higher figure is not automatically a better choice: mounting, duty cycle, feedback, connectors and approvals matter too. An engineer will check the fit against your application before recommending anything.
Other ac servo motor series
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