XZ-axis Extension Kit for 4040-PRO/4040-PRO MAX CNC Router Machine, with Linear Rails Driven, for Large Wood Engraving Carving Projects, Extend X-axis to 600mm, Upgrade 4040 to 6040/6060

Price: $499.00
(as of Oct 06, 2025 17:21:16 UTC – Details)

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Here at SainSmart we have been serving the maker community for years, starting in the early days with high-quality electronic parts and into today with our Genmitsu line of CNC mills for every experience level.

We love making, we are just a bit different than the people we make our products for. Our passion is making the best, most affordable tools available and getting them out to the maker community at large to do their thing!

Expand Your Workspace: Upgrade your Genmitsu 4040-PRO or 4040-PRO MAX with this precision-engineered X-axis extension kit and expand your working area to X-600mm x Y-400mm (23.6” x 15.7” x 3.1”).
Customize Your Upgrades: Combine it with the Y-axis extension kit and compatible spoilboards (not included) to reach a massive X-600mm x Y-600mm work area. Explore additional upgrade options on the product detail page to customize your machine.
PRO MAX-Level Precision: It features the same SBR16 linear rails and Z-axis structure as the 4040-PRO MAX, offering ±0.005mm repeatable accuracy and smoother motion. For 4040-PRO users, it’s a major performance upgrade. For 4040-PRO MAX users, it expands your X-axis to 600mm, giving you even more room for larger and more complex projects.
Dust Plate Integration: Protect your X-axis components and reduce cleanup time with the integrated dust plate, designed to block debris and extend the life of your machine.
Quick and Easy Assembly: Follow the detailed user manual for a fast setup so that you can dive right into your next project without delay.