FANUC A06B-6111-H011 Alpha i Spindle Amplifier

Overview

The A06B-6111-H011 is an Alpha i spindle amplifier module used in FANUC CNC spindle-drive systems.

The publicly accessible FANUC αi maintenance manual explicitly lists A06B-6111-H011 as αi SP 11, and replacement-market references commonly identify the documented H550 variant as SPM-11i.

That gives the model a clear place inside the Alpha i spindle-amplifier family.

In practical machine service, this module is selected when a spindle-drive replacement must match the original Alpha i architecture closely.

It is not just another amplifier in a broad catalog sense; it is a defined spindle module intended to preserve the installed spindle-control arrangement of the machine.

That is why technical buyers usually search by exact order code and spindle-module class rather than by general spindle-drive category.

Public replacement references for the H550 variant show 283–339 V rated input, 240 V maximum output voltage, 48 A rated output current, and 13.2 kW context, which gives the family a practical technical identity beyond the model name alone.

For product-page use, the strongest wording is direct and credible: A06B-6111-H011 is a FANUC Alpha i spindle amplifier module, commonly associated with the SPM-11i class, for CNC spindle replacement and service support.

Key Specifications

Alpha i Spindle Role

One of the most useful technical details about A06B-6111-H011 is that it is clearly part of the spindle-amplifier side of the Alpha i family, not the power-supply side and not the servo-axis side.

In real CNC service, that distinction matters because spindle-drive modules are selected according to the machine’s spindle architecture and motor pairing rather than by general amplifier appearance.

The SPM-11i designation is also valuable because it gives the product a clear identity within the spindle range.

For maintenance teams, this is more useful than a broad phrase like “spindle amplifier,” because it confirms the module’s place in a specific Alpha i class and helps reduce the risk of confusing it with nearby 5.5i, 15i, or 22i models.

FAQ

Q1: What kind of product is A06B-6111-H011?
It is a FANUC Alpha i spindle amplifier module. The public FANUC maintenance manual lists it as αi SP 11, and replacement-channel references commonly market its documented H550 variant as SPM-11i.

Q2: Why is the SPM-11i designation important?
It gives the module a specific spindle-family position inside the Alpha i range.

For replacement work, that is often more useful than a generic spindle-amplifier label because it helps the buyer confirm the correct spindle class.

Q3: Are the 13.2 kW and 48 A figures useful in matching?
Yes. Those public figures for the documented H550 variant help show that this is a mid-range Alpha i spindle module rather than a smaller or larger spindle amplifier.

For service engineers, that provides practical selection context.

Q4: Is A06B-6111-H011 mainly a replacement part?
Yes. Public references present it through spindle-module repair, exchange, and spare-parts channels, which is typical for installed CNC spindle-drive hardware that is sourced to support existing production equipment.

Q5: What should buyers verify before ordering?
Buyers should confirm the exact part number, the Alpha i spindle family, the SPM-11i class, and the installed spindle-drive context of the machine.

For spindle amplifiers, correct family and application matching are usually more important than broad category similarity.