Image: Sainsmart
Sainsmart Genmitsu PROVerXL 4x4
Sainsmart
Best for: Sign makers and furniture builders who need a 4x4 bed with ball screws and want to choose their own spindle
Typical starting price
$3,599Maker's price, checked Oct 13
Overall score
Best current buying path
Where to buy
SainSmart: $3,599 · checked Oct 22
- Shipping varies by retailer
- Check manufacturer site for availability
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Quick verdict
The PROVerXL 4x4 provides a 1300 x 1300 x 118mm working area, profile rails, ball screws and closed-loop NEMA23 motors. It weighs 150kg and uses 32-bit GRBL control. A full 4 x 4 ft panel fits, but the machine ships without a spindle or router. The optional second Z axis reduces usable X travel to 600mm. Plan a suitable support table, cutting head and extraction system, and choose CAM that handles the intended job size. The 5000 mm/min maximum speed is modest for the large bed.
Who this fits best
Sign makers and furniture builders who need a 4x4 bed with ball screws and want to choose their own spindle
Buy this if
Sign makers and furniture builders who need a 4x4 bed with ball screws and want to choose their own spindle. 1300 x 1300mm bed takes a full 4 x 4 ft panel.
Skip this if
No spindle or router included at $3999, and 1300mm gantry on an aluminium extrusion X axis is long for a trim-router class machine.
What else you still need
Add a compatible router or spindle with any required VFD, a rigid table around 1.9 x 1.85m rated for the 150kg machine plus workpieces, and dust extraction. Starter cutters, clamps and a dust shoe are included. Choose CAM for the full job size; the optional VCarve Desktop bundle has a 24 x 24 inch job limit.
Material reality check
The bed accommodates 4 x 4 ft plywood, MDF, wood panels and plastics. The maker also lists soft-metal work; capability depends on the chosen spindle, cutters and workholding. Plan suitable chip removal and conservative settings for metal jobs.
Better alternative if...
you want a 4x4 from a maker with a large North American user base and an established spindle upgrade path, compare the Sienci AltMill 4x4. See Sienci AltMill MK2 4x4
Where it wins
- 1300 x 1300mm bed takes a full 4 x 4 ft panel
- Ball screws and profile linear rails on every axis, closed-loop NEMA23 motors
- Optional second Z axis for running two routers or a router and a laser
- Hybrid spoilboard, Wi-Fi module, Z-probe, clamps and dust shoe included
- Uses the same well-documented GRBL software stack as smaller Genmitsu machines
Where it falls short
- No spindle or router included at $3999
- 1300mm gantry on an aluminium extrusion X axis is long for a trim-router class machine
- Max speed of 5000 mm/min makes full-sheet jobs slow
- Needs roughly 1.9 x 1.85m of floor or table space and a frame that can carry 150kg
- Second Z axis cuts usable X travel to 600mm
Specifications
1300 × 1300 mm
16900 cm²
710W
No spindle in the box: 65mm mount for the optional Genmitsu 710W trim router (ER11), 1.5-2.2kW water-cooled spindle also offered
32-bit GRBL 1.1h controller with Wi-Fi module, NEMA23 closed-loop steppers, inductive and hard limit switches
150 kg
$3,599
premium
Full specification table
Relative to database
Benchmark Scores
Overall Score
Composite across 5 dimensions
Community Sentiment
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