+ We stock a large inventory of Sierra industrial automation systems and parts.
+ We repair, service and calibrate most Sierra models of equipment.
+ We ship Sierra replacement parts worldwide, with expedited shipping for your urgent Sierra requirements


For immediate assistance click here for quick online help
or contact our Automation & Controls team:

Mr. Ryan Fitzgerald
Director, Industrial Automation & Controls Service Team
[email protected]
(212) 772-6992 ext. 704


Our staff at York Scientific is dedicated to help you succeed with all your mission-critical Sierra Industrial Automation equipment needs.

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- Month of -
Popular Industrial Automation Products:

Winter 2024 & 2025 Q1 Developments in Industrial Automation - expanded product offering and diagnostic and repair services at YORK

Winter 2025 Update: Since December 2022 the supply chain strictures have fortunately eased, with less stress on product delivery due dates. Our teams at YORK have been able to ramp up our service response times with expedited shipment schedules back to normal, providing replacement parts and services following normal response times. Our departments are now working on near-normal production levels and our delivery and service schedules back to regular operation levels. In addition to the Sierra 840L-2-0V1-SV1-E-V4-S4-HP parts and service support, we have been able to add new lines of product and service:

Expanded Service and Repair Support for New Product Lines: We offer full support for discontinued Siko products, including obsoleted and phased-out Smac parts and systems, as well as the all-new for 2025 Smc product line-up. Starting Q1 2025 YORK is pleased to announce additional repair and rebuild services for the automation products made by industrial controls leader Siko such as the SDA spares. Related to this we have added to our service line-up the LCA2501055FV3 manufactured by Smac and we are pleased to be able to service most Smac systems and parts. Due to increased demand we now feature CDRQB by Manufacturer Smc as well.

York Scientific's New & Featured Automation Replacement Parts: Starting early January 2025 York has Smc Brand CDQ2D40100DCMZXC26 in stock, original and quality replacement parts available for immediate dispatch to meet your requirement for spare replacements. Spare units by Sinano such as DHFD equipment made by Sinano have been added to our featured items. As a tip, you can find the entire Sinano products line-up in our inventory by simply searching for "Sinano" in the search box. Additionally we have now also available CKG1A50100Y made by Smc as well as the popular c12500220 original spares produced by Sierra

Servo Motors, Spindles, and Electric Motors Rewinding and Rebuilding. We have expanded capacity at our service centers to do complete overhauls of industrial electric motors and spindles. Refurbishment processes are held to stringent QA standards to adhere to or exceed manufacturer's specifications. Overhauls include motor bearing replacement, stator rewinding, and rebalancing. Additional overhaul and rebuilding capabilities of products such as the CDM2L2555ZM9PWL by Smc and DHFD spares by Sinano are also now also our York Scientific's line-up of service offerings. This also includes the original CA2T631000XAL20839 Spares made by industrial controls and automation manufacturer Smc.