How does shipping work for orders on MRO Exchange?

Most orders ship within 1–2 business days via UPS. Larger equipment ships via freight carrier, and customers can use the shipping estimator on the product page for a location-specific quote. Local pickup is also available at the Fairfield, IL facility, typically ready within 4 hours.

What payment methods does MRO Exchange accept?

MRO Exchange accepts all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available, with payment due prior to shipment. Custom terms are available for established accounts.

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Cincinnati Milacron 502-03571-00 / 501-04564-00 I/O Backplane Board

$199.99 USD

Sale Sold out

✓ 30-day returns on every item — return policy

ConditionSurplus - Untested MPN502-03571-00 / 501-04564-00 Stock #0326-00805

30-day returns on every item. Photos reflect the actual item’s current condition — see our return policy and condition guide.

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⚡ Same-day shipping available — order by 11 am CT ($100 add-on at checkout)

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Used in Cincinnati Milacron Acramatic CNC control systems, the I/O MB_SHORT backplane board provides the physical and electrical interconnect infrastructure for I/O module cards within the control chassis. The board carries part number 501-04564-00 with a secondary fabrication reference of 502-03571-00, revision 1, dated February 1989. Six card slots are silkscreened and labeled on the board face, with Slot 1 designated as the IOC (I/O Controller) position. The remaining slots are labeled 2 through 6 and accept compatible I/O module cards. DIN-style 96-pin connectors are populated at each slot position. The board is mounted to an aluminum rail frame that provides structural support and chassis registration. Solder-side construction is visible in the reverse photos, showing through-hole solder joints consistent with the board revision period. The silkscreen designation I/O MB_SHORT indicates this is the short form factor variant of the Acramatic I/O motherboard, distinguished from longer multi-slot versions used in larger control configurations. Compatible with Cincinnati Milacron machining centers equipped with the Acramatic 850 or related CNC control platforms that use this backplane architecture.

Stock # 0326-805

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Frequently Asked Questions

Shipping & Handling

Most orders ship within 1–2 business days via UPS, but expedited same-day handling is available as an add-on to orders in cart. Larger equipment ships via freight carrier. Use the shipping estimator above for a location-specific quote. Local pickup is also available at our Fairfield, IL facility, typically ready within 4 hours.

Returns & Condition

All items are sold as-described based on the photos and condition listed. If an item arrives differing from its description, it may be eligible for return or refund. See our full condition guide for details on our grading terms.

Payment Options

We accept all major credit cards, PayPal, and Shop Pay. Purchase order and wire transfer payment is also available by selecting "Purchase Order / Wire Transfer" at checkout. Payment is due prior to shipment. Contact us for custom terms on established accounts. Tax exemptions are honored if proper documentation is provided.