Flow Mach 4 4020
Key Specifications
Table Size
Accuracy
cutting area
pump pressure
pump power
cutting speed
How much does the Flow Mach 4 4020 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 Mach 4 4020 is a waterjet cutting machine with a 4,000 x 2,000 mm (157.5" x 78.7") cutting area on a table listed at 4,200 x 2,200 mm (nominal). The table figure is larger than the cutting area in both directions, so sheet size and fixturing should be planned around the cutting area.
Pump pressure in the listed figures is up to 60,000 psi (4,137 bar) as standard, with 87,000 psi as an option. Pump power runs from 37 kW to 55 kW for a single head. For dual-head configurations the listing says only that power is higher, with no figure. Water flow is given as ~3.8 L/min at standard pressure per head, so water demand rises with the number of heads as well.
Rapid traverse is up to 500 in/min (12,700 mm/min). That matches the 500 in/min (12.7 m/min) of the Mach 200c and is well below the 1,250 in/min (31.75 m/min) of the Mach 200s. Cutting feed is described as material-dependent, and so is the maximum material thickness of up to 12" (305 mm). Neither comes with a figure per material, which makes test cuts on your own plate the only real guide to cycle time. Positioning accuracy is listed at ±0.002" (±0.05 mm).
The control is Flow FlowMaster CNC with Precision Waterjet Nesting and DXF/DWG import. Machine weight is ~12,000 kg, a number the rigging and foundation plan needs early.
Full Specifications
| Parameter | Value |
|---|---|
| Cutting Area | 4,000 x 2,000 mm (157.5" x 78.7") |
| Pump Pressure | Up to 60,000 psi (4,137 bar) standard; 87,000 psi option |
| Pump Power | 37 kW to 55 kW (single head); higher for dual-head configurations |
| Cutting Speed | Up to 500 in/min (12,700 mm/min) rapid; material-dependent cutting feed |
| Positioning Accuracy | ±0.002" (±0.05 mm) |
| Max Material Thickness | Up to 12" (305 mm) material-dependent |
| Table Size | 4,200 x 2,200 mm (nominal) |
| Water Flow Rate | ~3.8 L/min at standard pressure per head |
| CNC Control | Flow FlowMaster CNC, Precision Waterjet Nesting, DXF/DWG import |
| Machine Weight | ~12,000 kg |
Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.
Strengths & Limitations
Strengths
- 4,000 x 2,000 mm (157.5" x 78.7") cutting area for long sheet and plate
- Pump pressure up to 60,000 psi (4,137 bar) as standard, with an 87,000 psi option
- Listed positioning accuracy of ±0.002" (±0.05 mm)
- Flow FlowMaster CNC control with Precision Waterjet Nesting and DXF/DWG import
- Single-head and dual-head configurations are both listed
Limitations
- Maximum thickness of up to 12" (305 mm) is material-dependent, and no thickness per material is listed
- The 87,000 psi pump pressure is an option; standard is up to 60,000 psi (4,137 bar)
- No Z travel is listed, and pump power for dual-head configurations is given only as higher than 37 kW to 55 kW
- At ~12,000 kg the machine needs floor loading and rigging checked before delivery
Best For
Frequently Asked Questions
01
The listed cutting area is 4,000 x 2,000 mm (157.5" x 78.7"). The table itself is listed at 4,200 x 2,200 mm (nominal), so the usable cutting area is smaller than the table in both directions.
02
Pump pressure is up to 60,000 psi (4,137 bar) as standard, with 87,000 psi available as an option. Pump power is 37 kW to 55 kW with a single head. Dual-head configurations are listed as needing more power, without a figure.
03
Rapid traverse is up to 500 in/min (12,700 mm/min). The Mach 200c lists the same 500 in/min (12.7 m/min), while the Mach 200s lists 1,250 in/min (31.75 m/min). Cutting feed depends on the material and no figure is listed for it.
04
The listed water flow rate is ~3.8 L/min at standard pressure per head. A dual-head configuration therefore draws more water than a single head, and the listing also says its pump power is higher than the 37 kW to 55 kW single-head range.
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