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Genmitsu 4th Axis Rotary Module for 4040 and 3030 Series CNC Machines with… competes with other Displays & Upscalers products on SpecPicks. Use our Compare tool to view specs side-by-side, or browse the full Displays & Upscalers category for alternatives.

Genmitsu

4th Axis Rotary Module for 4040 and 3030 Series CNC Machines with Planetary Geared Stepper Motor, 4 Jaw Chuck, Clamped Range 10-200mm

Name: Genmitsu 4th Axis Rotary Module for 4040 and 3030 Series CNC Machines with Planetary Geared Stepper Motor, 4 Jaw Chuck, Clamped Range 10-200mm
Brand: Genmitsu
SKU: B0C581H2B3
Price: 274.00 USD
Availability: InStock
Rating: 4.6 (46 reviews)

By SpecPicks Editorial · Verified 2026-06-06

$274.00 ★★★★½4.6(46 reviews)

Buy on Amazon — $274.00 Compare to similar displays & upscalers

*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.

Bottom line: The 4th Axis Rotary Module for 4040 and 3030 Series CNC Machines with Planetary Geared Stepper Motor, 4 Jaw Chuck, Clamped Range 10-200mm is a category leader on buyer feedback in the displays & upscalers category, priced around $274.00, rated 4.6★ across 46 verified Amazon reviews. A confident buy for most shoppers in this category.

SpecPicks Verdict

SpecPicks classifies Genmitsu 4th Axis Rotary Module for 4040 and 3030 Series CNC… as a category leader on buyer feedback in the displays & upscalers category, based on 46 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Genmitsu's positioning sits comfortably above the category median. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.

Common buyer scenarios for displays & upscalers of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.

Pros & Cons

Pros

✓ Highly rated — 4.6★ average across customer reviews
✓ Backed by Genmitsu's warranty and support channels
✓ Ships via Amazon with Prime eligibility and the standard returns policy

Cons

✗ Limited review volume so far — fewer data points on long-term reliability
✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified

Key Features

Discover the Possibilities: The 4th Axis rotary module kit is a drop-in upgrade that enables your 4040-PRO, 4040-PRO MAX, 3030-PROVer Ultra, 3030-PROVer MAX CNC machine to carve from different angles and positions, or with the right software, full rotary carving. It allows for the creation of complex parts with curved or angled features that are not achievable with a traditional 3-axis CNC machine. Additionally, the G-code for the 4th axis must be sent using an offline controller (ASIN: B0C582HQ6Z), which should be ordered together with the 4th axis to ensure proper functionality (For the 4040 series only, the 3030 series comes with the offline controller.)
NEMA17 Planetary Geared Stepper Motor: Take advantage of the high torque provided by the NEMA17 motor, which allows the motion system to rotate workpieces with more force and precision than any other belt-driven rotary modules on the market.
Versatile dimensions: Adapt to various project requirements with a center height of 50mm, total height of 86mm, and material lengths with tailstock from 10-100mm; without tailstock from 10-200mm for flexibility. Applicable Material diameter: 2-50mm.
Precision Control: Utilize the 10:1 reduction ratio for precise control, offering a minimum angle of 0.1° and a maximum angular speed of 300° per second, ensuring high speed and unparalleled accuracy.
Software & Controller: To use a 4th axis on your CNC machine, you will need CAD/CAM software that can generate toolpaths for rotary motion. While options like Fusion 360 and Vectric are recommended, it's important to note that most software capable of generating 4th axis toolpaths is not free.

Full Specifications

Brand	Genmitsu
Capacity	50 Millimeters
Material	Aluminum
Unit Count	1.0 Count
Model Number	4th Axis
Material Type	Aluminum
Item Type Name	CNC 4th Axis Rotary Kit
Compatible Devices	CNC Machine
Included Components	4th Axis Rotary Kit
Manufacturer Part Number	4th Axis

Ready to buy?

Genmitsu 4th Axis Rotary Module for 4040 and 3030 Series CNC Machines with Planetary Geared Stepper Motor, 4 Jaw Chuck, Clamped Range 10-200mm is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

Check price on Amazon →

*Price sourced from Amazon.com. Last updated 2026-06-06. Price and availability subject to change.