CNC machine

Genmitsu 4040-PRO MAX: 65 mm mount, router and spindle options

Genmitsu's 4040-PRO MAX: its 65 mm mount and 710 W ER11 compact router, the 65/69 mm holders and the water-cooled kit cable and adapter-plate notes.

Also listed as 4040 PRO MAX, SainSmart 4040-PRO MAX

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Short answer

Genmitsu lists the 4040-PRO MAX with a 65 mm spindle mount and a 710 W compact router supplied with ER11 collets. Its 65/69 mm holders (101-63-ZC65 and ZC69) name this machine. Genmitsu lists it as a control-signal-cable match for its V2 water-cooled spindle kit; that is a signal list, not a mount approval.

Key facts

Maker and model
Genmitsu (SainSmart) 4040-PRO MAX[1]
Z axis or slider
Not confirmed
Router or spindle it ships with
710 W compact router supplied with ER11 collets[1]
Mount it ships with
65 mm spindle mount[1]
Other mounts the maker lists
Genmitsu 65/69 mm aluminum spindle holder (101-63-ZC65 or 101-63-ZC69); SainSmart's earlier water-cooled kit included an 80 mm holder with an adapter plate for the 4040-PRO MAX[2][3]The earlier kit (SKUs 101-63-SPXL15/SPXL22) is shown sold out; the V2 kit page does not say whether it includes a holder.
Mounts and kits the maker excludes
Not confirmed
Spindle kits that name it
Genmitsu V2 water-cooled spindle kit (listed as a control-signal-cable match) and SainSmart's earlier Genmitsu water-cooled kit (adapter plate included)[4][3]The V2 list is a signal-interface list, not a mount or payload approval.
Supply the maker's kits require
Genmitsu's V2 water-cooled kit page states a 110 V/60 Hz input; regional variants exist for other markets[4]The page states no per-region voltage or current. Follow the kit manual and a qualified electrician.
Collets supplied
ER11 collets with the 710 W compact router[1]Genmitsu's page does not list the sizes.
Table and workholding thread
Genmitsu lists its low-profile toe clamp (M6 screws and nuts) for Genmitsu 4030 and larger machines with T-track, hybrid tables or M6 spoilboards[5]Fit still depends on your board's thread.
Dust boots that name it
Not confirmedGenmitsu's DS69 is matched to 65-69 mm spindles by diameter; see the 65 mm record.
Maker support for third-party parts
Not confirmed
Revisions and conflicts
Genmitsu's V2 water-cooled kit page lists ER11 on the 1.5 kW model and ER20 on the 2.2 kW model at 24,000 RPM, but its body text also calls it a 1.5 kW kit and it mentions no 80 mm body or mount.[4]
Not confirmed
Not confirmed

Watch out for

  • Genmitsu's V2 water-cooled kit lists the 4040-PRO MAX as a signal-cable match only; that is not a mount or payload approval.
  • The earlier water-cooled kit's 80 mm holder and 4040-PRO MAX adapter plate belong to SKUs 101-63-SPXL15/SPXL22; the V2 page does not say a holder is included.
  • The stock 710 W router uses ER11 collets, which top out around 1/4 in in the catalogs we checked.

What fits

Product details below are the seller's own description unless a source is shown. Pick the variant named for each item.

This is a reference for owners, not a machine recommendation. See 65 mm mounts and ER11 collets.

Questions

What router comes with the Genmitsu 4040-PRO MAX?

Genmitsu lists a 710 W compact router supplied with ER11 collets, in a 65 mm spindle mount.[1]

Does the Genmitsu V2 water-cooled spindle kit fit the 4040-PRO MAX?

Genmitsu lists the 4040-PRO MAX as a control-signal-cable match for the V2 kit. That is a signal-interface list, not a mount or payload approval, and the V2 page does not say whether a holder is included.[4]

Sources

  1. Genmitsu 4040-PRO MAX CNC Machine · SainSmart (Genmitsu) · 4040-PRO MAX product page · checked 11 Oct 2026
  2. Genmitsu 65-69mm Aluminum Spindle Holder Z-Axis Mount · SainSmart (Genmitsu) · SKU 101-63-ZC65 / ZC69 holder for 4040-PRO family and Aluminum Z Axis Assembly V2 · checked 11 Oct 2026
  3. Water Cooled Spindle Motor Kit · SainSmart (Genmitsu) · Genmitsu water-cooled kit SKUs 101-63-SPXL15/SPXL22 (shown sold out); not the V2 SKUs · checked 11 Oct 2026
  4. 1.5KW/2.2KW Water Cooled Spindle Motor, 24K RPM ER11 ER20 Collet with Pre-Wired VFD Inverter Box & Pump · SainSmart (Genmitsu) · Genmitsu GA-SP15V2/GA-SP22V2 water-cooled kit product page, regional variants · checked 11 Oct 2026
  5. Genmitsu Low Profile Aluminum Toe Clamp (101-63-VC-2P) · SainSmart (Genmitsu) · Maker product page: M6 hardware, material, dimensions, adjustment range, compatible surfaces · checked 11 Oct 2026

Next review due 10 Jan 2027.