Waterjet cutting machine

Flow FLOW Mach 4 4020b

We are offering this used Flow FLOW Mach 4 4020b waterjet cutting system, year of manufacture 2010.

Dynamic XD | 100 HP HyperJet | NEW drive retrofit in 2026

Manufacturer: Flow
Model: FLOW Mach 4 4020b
Year: 2010

Machine description

For sale is a high-performance and recently serviced precision waterjet cutting system from world market leader FLOW, model Mach 4 4020b.

The system is equipped with Flow’s high-end technology (6,000 bar instead of the standard 3,800 bar) and features the Dynamic XD cutting head, which automatically compensates for angular errors and enables complex 3D and bevel cuts.

Special highlight for buyers: In January 2026, a comprehensive technical service was performed by the manufacturer (Flow Europe GmbH). An official drive controller retrofit kit was installed (approx. €18,000 incl. installation). As original controllers for this year are often no longer available, this upgrade offers long-term spare parts security and modernized electronic control. A test cut was successfully performed following the retrofit.

Technical Data
The machine was primarily used for thin sheet metal.

Manufacturer: Flow International Corporation
Model: Mach 4 4020b
Year: 2010 (Service & Electronics Upgrade 01/2026)
Working area: approx. 4,000 mm x 2,000 mm
Cutting head: Dynamic XD (5-axis technology with angular error correction) – it was only used by us for angle correction, so
only partially functional
Abrasive system: Flow Paser 4
High-pressure pump: Flow HyperJet 100 (94iD)
Max. operating pressure: 6,000 bar (87,000 PSI)
Pump output: 100 HP / 75 kW
Operating hours (pump): approx. 10,409 h
Control software: FlowMaster / FlowCUT 7.0
Connection values: 400 V, 50 Hz, 3-phase (120 A full load)
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Condition & Features

Technical condition: ready for immediate operation.
Maintenance history: Current technical service report from manufacturer available (January 2026).
Upgrades: New drive controllers (retrofit kit) and overhauled wiring for the C-axis.
Productivity: 6,000 bar technology enables up to 50% faster cutting compared to standard machines.

Inspection & Transaction

The system is currently still connected and can be viewed and demonstrated under power.
Location: 78549 Spaichingen (Baden-Württemberg)
Inspection possible at short notice by arrangement.

Scope of delivery

Flow Mach 4 4020b waterjet machine
HyperJet 100 high-pressure pump
Control terminal incl. software
Technical acceptance protocol / service report dated 01/2026
Abrasive system: Flow Paser 4

Legal notice (B2B):
Sale exclusively to businesses, with warranty, liability for material defects, and returns excluded. Purchased as seen/tested. All information without guarantee, subject to error and prior sale.

If you have any questions or need further information, please send us a message or call us.

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