Flow Mach 300
Key Specifications
Rapid Traverse
Accuracy
Repeatability
cutting method
max pressure
pump type
Overview
The Flow Mach 300 bridges the gap between Flow's Mach 200 series and the high-pressure Mach 500/700 platforms. It operates at 60,000 PSI using the HyPlex Prime direct-drive pump, which offers ~85% electrical efficiency vs ~65% for intensifiers, reducing energy costs and maintenance.
Table sizes range from 1,500 x 1,500 mm to 4,000 x 2,000 mm. Positioning accuracy is +/- 0.038 mm (0.0015 in) with repeatability of +/- 0.025 mm (0.001 in) -- tighter than the Mach 200 series. The motion platform uses precision linear guides and ball screws driven by AC servo motors.
The Mach 300 supports Flow's full cutting head range: standard abrasive, Dynamic Waterjet for taper compensation, and Dynamic Waterjet XD for 5-axis bevel cutting to 60 degrees. Dual-head configurations double throughput on identical parts. FlowXpert CAD/CAM with Q1-Q5 quality settings balances edge finish vs speed.
The heavy-duty welded steel frame features a stainless steel catcher tank with ball-screw abrasive removal and programmable water level control. New systems price $200,000-$400,000. Competes with OMAX 80X/GlobalMAX, Techni Waterjet Intec-G2, and WardJet Z-2000.
Full Specifications
| Parameter | Value |
|---|---|
| Cutting Method | Abrasive waterjet |
| Max Pressure | 60,000 PSI (4,137 bar) |
| Pump Type | Flow HyPlex Prime direct-drive |
| Pump Efficiency | ~85% electrical efficiency |
| Table Sizes | 1,500 x 1,500 mm to 4,000 x 2,000 mm |
| Positioning Accuracy | +/- 0.038 mm (0.0015 in) |
| Repeatability | ± 0.001 in |
| Max Cutting Thickness | 150 mm (6 in) |
| Cutting Head Options | Standard, Dynamic Waterjet, Dynamic Waterjet XD (5-axis to 60 deg) |
| Multi Head | Dual-head available |
| Control Software | FlowXpert CAD/CAM with SmartStream |
| Drive System | AC servo motors, ball screws, precision linear guides |
| Rapid Traverse Rate | 15,240 mm/min (600 ipm) |
| Tank Type | Stainless steel with ball-screw abrasive removal |
| Power Requirements | 480V / 60Hz, 3-phase |
| Rapid Traverse Maximum | 472 in/min |
| Linear Positional Accuracy | ± 0.001 in |
| Z Axis Travel | 12 in |
| Work Envelope | Mach 300 2015: 6'-6" x 5'Mach 300 3015: 10' x 5' |
| Acceleration | 0.075 g |
| Ballbar Circularity | ± 0.003 in |
Specifications sourced from flowwaterjet.com — verified 2026-03-28
Strengths & Limitations
Strengths
- HyPlex Prime direct-drive pump ~85% efficient vs 65% for intensifiers
- Tighter positioning (+/- 0.038 mm) than Mach 200 series
- Dynamic Waterjet XD enables 5-axis bevel cutting to 60 degrees
- Dual-head configuration doubles throughput on identical parts
- Direct-drive pump has fewer wear components for lower maintenance
- Q1-Q5 quality settings easily balance finish vs cutting speed
Limitations
- Still 60,000 PSI -- thick plate shops should consider Mach 500 at 87,000 PSI
- Dynamic Waterjet XD adds $40,000-$60,000 to base price
- Direct-drive pumps can be more expensive for major rebuilds
- Garnet consumption $15-$30/hour remains the largest ongoing cost
- Fundamentally slower than laser or plasma on sheet metal
Best For
Frequently Asked Questions
01
$200,000-$400,000 new. Mid-size with Dynamic Waterjet runs $275,000-$325,000. Used (2018-2023) $100,000-$225,000.
02
Uses crankshaft to directly pressurize water at 85% efficiency vs intensifier's hydraulic step at 65%. Fewer wear parts but limited to 60,000 PSI.
03
Yes. Dual-head cuts two identical parts simultaneously with independent Z-axis. Adds ~$30,000-$50,000.
04
Direct-drive pump, tighter positioning, faster rapids, dual-head support. Targets production shops vs job shops.
05
Similar price and capability. Flow uses direct-drive, OMAX intensifier. Both have mature CAM. Choice depends on dealer support.
Videos
Flow Waterjet
Global Machine Brokers
Flow Waterjet
Olivia Robinson
SterlingMachinery
Community Discussions
Troubleshooting and problem-solving — Problem Flow Water jet - Amplifier Faults and more.. - CNCzone
Troubleshooting and problem-solving — Flow Water Jet Error (Motor Fatal Following Error Shutdown ...
Community discussion — Need Help! Water flowing back into nozzle - cnczone.com
Troubleshooting and problem-solving — Need Help! Flow waterjet blowing out mixing tube - CNCzone
Links to community discussions. Summaries are editorial — visit the original thread for full context.




