FANUC A06B-6134-H303 AC Servo Amplifier Unit — Compact Beta Series Drive for CNC and Automation Systems

There's a particular kind of reliability that maintenance engineers come to expect from FANUC servo components — and the A06B-6134-H303 delivers exactly that. Part of FANUC's beta series servo amplifier lineup, this unit is purpose-built for applications where a compact, integrated drive solution is the right fit. Available in both new and tested used condition, it's a direct-replacement option for facilities looking to get equipment back online without a prolonged wait.

Where This Amplifier Fits

The A06B-6134-H303 belongs to FANUC's 6134 beta series — a servo amplifier family designed with integration in mind. Unlike the larger alpha-series modular systems that separate the power supply and drive into distinct cabinet components, the beta series packages drive functionality into a more compact form factor, making it well-suited to smaller CNC machines, secondary-axis applications, and equipment where panel space is limited.

You'll find this amplifier series in use on a wide range of FANUC-controlled machinery: smaller lathes and machining centers, entry-level CNC mills, and various automated handling systems where the beta servo motor and amplifier combination provides sufficient torque and speed performance without the overhead of a full alpha-series installation.

Product Identification & Key Specifications

Important: Stock availability on this model fluctuates. Please contact us to confirm current inventory before placing your order.

What Makes the 6134 Series Stand Out

The beta series amplifiers were developed by FANUC as a cost-effective, space-saving solution for servo control without sacrificing the core performance expectations of the FANUC ecosystem. A few practical points worth noting:

Compact, integrated design. The 6134 form factor is noticeably smaller than modular alpha-series equivalents, which matters when you're working with a tight cabinet layout or a machine tool with limited electrical panel space.

Native FANUC compatibility. This amplifier communicates directly with FANUC's CNC controllers using FANUC's serial servo bus (FSSB), ensuring accurate encoder feedback and position control without third-party conversion hardware.

Built-in protection circuitry. Overcurrent, overvoltage, and overtemperature protection are standard features — safeguards that protect both the amplifier and the connected beta servo motor during fault conditions or abnormal operating states.

CE certified. The unit meets applicable European directives for electrical safety and electromagnetic compatibility, important for operations in EU-regulated manufacturing environments.

Genuine FANUC manufacture, made in Japan. The 6134 series is produced to the same exacting tolerances that FANUC applies across its entire servo product range.

New vs. Used — Making the Right Call

Both conditions have a place depending on your situation.

If you're running a production line where unexpected downtime carries significant financial consequences, a new unit offers maximum peace of mind — unused, fully warranted for 12 months, and as close to factory-fresh as you can get outside of direct OEM procurement channels.

Used units are a practical choice when you're servicing older equipment with a realistic remaining service life, or when you need a proven working unit at a lower price point. Every used unit we offer has been inspected and functionally verified prior to listing. These carry a 3-month warranty from the date of receipt.

Neither option compromises on shipping speed or our commitment to accurate product description.

Payment Methods & Shipping

We ship worldwide via DHL and FedEx. Dispatch typically happens within 0 to 3 working days after payment is confirmed. If you're purchasing multiple items, we combine shipping automatically — just mention it when you get in touch.

Payment options available:

• Bank Transfer (T/T) — for all order values, preferred for larger purchases
• PayPal — for orders valued at $500 or below
• Western Union — available for all order values

Customs duties, import taxes, and destination-country charges are the responsibility of the buyer. If you're unsure about shipping costs to your region, ask us before ordering — we'll give you a straight answer.

Warranty Terms & Return Policy

Returns are accepted when goods arrive damaged, not as described, or incomplete — and when a unit is found to be non-functional within 4 days of delivery. Warranty claims require the original packaging and intact warranty label. Return shipping is at the buyer's expense.

We don't cover physical damage or failure caused by improper installation or operation. And we don't accept returns for orders placed incorrectly or where a buyer has changed their mind — so if there's any uncertainty about whether this model fits your machine, reach out before ordering.

Frequently Asked Questions

Q1: What FANUC series does the A06B-6134-H303 belong to, and what machines is it typically used in?

The A06B-6134-H303 is part of FANUC's beta series servo amplifier family. Beta series drives are commonly found in smaller CNC machines — including compact lathes, entry-level machining centers, and certain automated systems — where integrated, space-saving servo drives are preferred over the larger modular alpha-series setups. If you can share your machine model and current amplifier specifications, we can help confirm whether this is the right unit for your application.

Q2: Is the "H303" suffix in the part number significant — does it indicate a specific configuration?

 Yes, the suffix in FANUC's servo amplifier part numbering carries meaningful information about the unit's specification, including axis configuration and rated output. The H303 designation identifies a specific variant within the 6134 beta series. It's important to match the exact part number — including the suffix — when sourcing a replacement, as swapping in an H301 or H302 in place of an H303, for example, may result in a mismatch with your motor's rated current requirements. Always cross-reference against your machine's maintenance documentation or BOM before ordering.

Q3: Can I use this unit as a spare for a machine that's currently running, or does it need to be set up?

 In most cases, a replacement A06B-6134-H303 can be installed as a direct swap into a machine that previously used the same model. FANUC beta series amplifiers typically store servo parameters in the CNC controller, which means swapping the amplifier itself usually doesn't require re-parameterization from scratch — though commissioning checks by a qualified engineer are always recommended after any drive replacement.

Q4: How is the used unit tested before you ship it?

Used units go through a functional inspection process before being listed and sold. We don't offer untested or "as-is" units — if a unit hasn't passed basic functional checks, it doesn't go to a customer. That said, used units do carry a shorter 3-month warranty compared to 12 months on new stock, which reflects the difference in remaining service life. If a unit fails within the warranty window, we'll arrange a replacement or refund under the terms described on this page.

Q5: What if I need this part urgently — is expedited dispatch possible?

Our standard lead time is 0 to 3 working days from payment, which is already faster than most OEM and distribution channels for FANUC spare parts. If you're dealing with a machine-down situation, contact us directly and explain the urgency — in many cases we can prioritize picking and dispatch. We'll also advise on the fastest available shipping option to your location so you can make an informed decision on freight cost vs. transit time.

To check availability or request a quote: Contact Ms. Amy — sales01@sande-elec.com | Skype: sandesales01 | Tel: +86 18620505228