Flow NX Pro
Image: flowwaterjet.com, Flow International
Key Specifications
Z Travel
Rapid Traverse
Accuracy
Repeatability
table sizes
ballbar circularity
How much does the Flow NX Pro cost?
Estimated price range
Our best estimate for a cnc waterjet cutting in this class — not a quote from Flow International. Configuration moves it a long way.
Overview
The Flow NX Pro is a waterjet cutting system built in four table sizes, the 2020 (2x2m), 3020 (3.05x2m), 4020 (4x2m) and 4040 (4x4m), with a choice of 12 in (305 mm) or 24 in (610 mm) of Z travel. Flow gives the work envelopes as 6'-6" × 6'-6" for the 2020, 10'-0" × 6'-6" for the 3020, 13'-1" × 6'-6" for the 4020 and 13'-1" × 13'-1" for the 4040.
Accuracy is where this model is specified most fully. Flow states positioning accuracy of ± 0.0005 in (± 0.0127 mm), repeatability of ± 0.0008 in (± 0.02 mm) and ballbar circularity of ± 0.0025 in (± 0.0635 mm). The ballbar figure is the one to weigh for round features and contours, since it describes how closely two axes moving together trace a circle, where the positioning figure describes a single axis arriving at a point.
Rapid traverse is 700 in/min (17.8 m/min) and acceleration is 0.1 g. The rapid is 40% higher than the 500 in/min (12.7 m/min) of the EchoJet and the Mach 200c, and even the shorter Z option exceeds the 8 in (203 mm) those two models list. On nests of small parts with short moves between pierces, the acceleration figure matters more than the top rapid.
Two listed features address consumption. A variable frequency drive is credited with a 10-30% reduction in energy use, and an automated abrasive recycling system with up to 50% garnet reduction. Both are ranges or upper limits, so ask what duty cycle they assume. Flow's table for the NX Pro gives no pump pressure, pump power or machine weight; those have to be confirmed for the configuration ordered.
Full Specifications
| Parameter | Value |
|---|---|
| Table Sizes | 2020 (2x2m), 3020 (3.05x2m), 4020 (4x2m), 4040 (4x4m) |
| Positioning Accuracy | ± 0.0005 in (± 0.0127 mm) |
| Repeatability | ± 0.0008 in (± 0.02 mm) |
| Ballbar Circularity | ± 0.0025 in (± 0.0635 mm) |
| Rapid Traverse Rate | 700 in/min (17.8 m/min) |
| Acceleration | 0.1 g |
| Energy Savings | Variable frequency drive, 10-30% reduction |
| Abrasive Recycling | Automated system, up to 50% garnet reduction |
| Rapid Traverse Maximum | 700 in/min |
| Work Envelope | N × Pro 2020: 6'-6" × 6'-6" N × Pro 3020: 10'-0" × 6'-6" N × Pro 4020: 13'-1" × 6'-6" N × Pro 4040: 13'-1" × 13'-1" (N × Pro 2020: 2 m × 2 mN × Pro 3020: 3.05 m × 2 mN × Pro 4020: 4 m × 2 mN × Pro 4040: 4 m × 4 m) |
| Z-Axis Travel | 12 in, 24 in (305 mm, 610 mm) |
Specifications sourced from flowwaterjet.com — verified 2026-10-03
Strengths & Limitations
Strengths
- Positioning accuracy of ± 0.0005 in (± 0.0127 mm) with repeatability of ± 0.0008 in (± 0.02 mm)
- Four table sizes, from the 2020 (2x2m) to the 4040 (4x4m)
- Z travel of 12 in (305 mm) or 24 in (610 mm), against 8 in (203 mm) on the EchoJet
- Rapid traverse of 700 in/min (17.8 m/min), 40% above the 500 in/min (12.7 m/min) of the Mach 200c
- Automated abrasive recycling with up to 50% garnet reduction, plus a variable frequency drive listed at a 10-30% energy reduction
Limitations
- Ballbar circularity of ± 0.0025 in (± 0.0635 mm) is five times the ± 0.0005 in (± 0.0127 mm) positioning figure, so contours hold a looser tolerance than point positions
- Three of the four sizes are 6'-6" in one direction; only the 4040 at 13'-1" × 13'-1" takes wider material
- Acceleration is 0.1 g, which limits how much of the 700 in/min rapid is used on short moves
- Flow's table lists no pump pressure, pump power or machine weight for the NX Pro
Best For
Frequently Asked Questions
01
Four: the 2020 (2x2m), 3020 (3.05x2m), 4020 (4x2m) and 4040 (4x4m). Flow lists the work envelopes as 6'-6" × 6'-6", 10'-0" × 6'-6", 13'-1" × 6'-6" and 13'-1" × 13'-1" in the same order.
02
Flow lists positioning accuracy of ± 0.0005 in (± 0.0127 mm), repeatability of ± 0.0008 in (± 0.02 mm) and ballbar circularity of ± 0.0025 in (± 0.0635 mm). The circularity figure is the relevant one for holes and curved profiles, because it is measured with two axes moving together.
03
Either 12 in (305 mm) or 24 in (610 mm). For comparison, the EchoJet, Mach 150 and Mach 200c each list 8 in (203 mm) of Z travel, so the 24 in option gives three times their vertical travel.
04
Rapid traverse is 700 in/min (17.8 m/min) with 0.1 g acceleration. The Mach 150 lists 400 in/min (10.16 m/min), and the EchoJet and Mach 200c both list 500 in/min (12.7 m/min).
05
Flow lists an automated abrasive recycling system with up to 50% garnet reduction, and a variable frequency drive with a 10-30% reduction under energy savings. Both figures are stated as a range or a maximum, not as a fixed saving.
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