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


For immediate assistance be sure to 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 Guardmaster Ltd Industrial Automation equipment needs.

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Popular Industrial Automation Products:

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

Winter 2025 Update: Since December 2023 the supply chain strictures have fortunately eased, with less stress on product delivery due dates. Our teams at YORK XPS 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 Guardmaster Ltd 442L-SFZNMZ 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 Proface products, including obsoleted and phased-out Measurex parts and systems, as well as the all-new for 2023 Asea 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 Proface such as the 5019T spares. Related to this we have added to our service line-up the 51401635150 manufactured by Measurex and we are pleased to be able to service most Measurex systems and parts. Due to increased demand we now feature 57310001BY by Manufacturer Asea as well.

York Scientific's New & Featured Automation Replacement Parts: Starting early January 2025 YORK has Honeywell Brand 51304362150 in stock, original and quality replacement parts available for immediate dispatch to meet your requirement for spare replacements. Spare units by Sstwoodhead such as 5136DNPISA equipment made by Sstwoodhead have been added to our featured items. As a tip, you can find the entire Sstwoodhead products line-up in our inventory by simply searching for "Sstwoodhead" in the search box. Additionally we have now also available 6004BZ10200D made by Taylor as well as the popular 549635 original spares produced by Landis--Gyr

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 57360001HG2 by Asea and 5136DNPISA spares by Sstwoodhead are also now also our York Scientific's line-up of service offerings. This also includes the original 5055103 Spares made by industrial controls and automation manufacturer Siemens.