Original price was: 2.000,00 €.Current price is: 1.800,00 €.


21i Main Board w/PMC SB5 exchange available

Order online, or call us to ship today

  • 180 day warranty on refurb parts, repairs.

  • 12 month warranty on motors & NEW OEM parts.

  • 2 Year warranty on DNC monitors, psu’s, memory.

  • Order yours before 4pm for same day dispatch


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2.000,00  Original price was: 2.000,00 €.1.800,00 Current price is: 1.800,00 €.

FANUC A20B-8100-0136

Buy online or call to order your Fanuc 21i motherboard from CNCpart. This Fanuc main pcb supports the SA5 PMC (ladder) and is ready to install into your A02B-024x-Bxxx control. The board needs to have its FROM and SRAM modules plugged in as well CPU and FSSB controller boards. This A20B-8100-0136 supplied by us are tested on our series 21i model A testing systems.

A20B-8100-0136 make sure to backup SRAM !

Please always make sure you have a SRAM backup for your all of your machines with the i series controllers – very simple too do. If you do not have the backup and the A20B-8100-0136 fails or faults and needs replaced then you’ve lost your SRAM for the machine. If you do not have a backup then you will need to get a copy from the machine tool manufacturer or distributor / dealer before purchasing a main card. Unless you have a SRAM backup you are wasting money on hardware with SRAM files to run the control on your machine!

Fanuc 21i A system fault suspected:

Either consult our system alarm pages or call us with your 21iA alarm codes. These boards are available today to ship. You must know how to install one of these boards if not we would recommend shipping your 21i control to us for inspection, quote, repair and test of the system possibly including replacing the main board. Available exchange or on outright sale basis.