Press Brake Controller Guide: Delem vs Cybelec vs ESA CNC Systems (2026)

Quick Answer: Which Press Brake Controller Should You Choose?

Choose the controller by workflow, not by brand name alone. A workshop bending simple brackets all day may be faster with a clear 2D controller and a 4-axis or 6-axis machine. A job shop importing many parts from CAD will benefit more from 3D simulation, automatic bend sequencing, offline software, tool libraries, and collision checking.

For premium hydraulic or servo-hybrid CNC press brakes, Delem DA-66S and DA-69S are common high-end choices because the DA-66S focuses on 2D programming while the DA-69S adds full 3D programming and simulation. Cybelec CybTouch 15 PS fits entry and mid-range CNC press brakes up to 6 axes. ESA S/VIS controllers are useful when the OEM wants a more open, integrated CNC platform with large screens, Windows-based operation, and flexible axis communication.

Delem vs Cybelec vs ESA: Practical Comparison

What a Press Brake Controller Actually Controls

The CNC screen is only the visible part of the control system. Behind it, the controller coordinates hydraulic valves or servo drives, linear scales, back gauge axes, crowning, tool data, safety inputs, and production programs. A stronger controller does not automatically make a weak frame accurate, but a weak controller can limit a good machine.

• Y1 / Y2: left and right ram movement for depth, angle, and parallelism.
• X: back gauge depth, usually the most important axis for bend location.
• R: back gauge height, important for Z-bends, return flanges, and different die heights.
• Z1 / Z2: left and right back gauge finger positioning for off-center or short parts.
• V: CNC crowning or deflection compensation, important on long bends.
• Auxiliary axes: sheet followers, front supports, robotic interfaces, tandem synchronization, or special tooling.

Delem Controllers: Best for Premium CNC Press Brake Buyers

Delem is widely recognized in CNC press brakes because its interface is built around real bending workflow: product drawing, tool setup, bend sequence, machine simulation, and production correction. Delem official pages list DA-66S as a 2D graphical press brake control and DA-69S as a 3D/2D graphical control, both using a 24-inch high-resolution touch screen in the DA-60S generation.

In practice, choose Delem when the machine will run many part numbers, exported programs, multi-step jobs, or advanced back gauge configurations. The higher purchase price can be justified when reduced setup time and fewer first-piece errors matter more than the lowest initial cost.

• High-mix job shops that need quick program changes.
• Export machines where the buyer wants a familiar international CNC brand.
• Press brakes with 6-axis or 8-axis back gauges, CNC crowning, sheet followers, or angle correction.
• Factories using offline programming to prepare jobs before the machine is free.

Cybelec Controllers: Strong for Entry and Mid-Range CNC Machines

Cybelec CybTouch controllers are common on practical CNC press brakes because they are easy to teach and fast for everyday 2D bending. The official CybTouch 15 PS page describes it as a 2D numerical control for entry and mid-range CNC press brakes up to 6 axes, with a 15-inch touch screen, 2D profile drawing, automatic bend sequence calculation, backup/restore tools, and offline software options.

Choose Cybelec when the team wants a clear operator interface without paying for high-end 3D functions that will not be used every day. It is especially suitable for shops moving from NC or manual machines into true CNC bending.

• 4-axis and 6-axis hydraulic press brakes.
• Operators who need guided touch programming and quick single bends.
• Factories that value simple backup, restore, firmware, and program transfer routines.
• Budget-sensitive buyers who still want a reputable European controller brand.

ESA Controllers: Best When the Machine Needs Deep Integration

ESA/ESAutomotion controllers are often selected by OEMs that want a flexible CNC platform for press brakes, shears, and other machine tools. ESAutomotion describes VIS-600 systems as covering machines from compact 3-axis controls to high-end multi-axis systems, and its metalforming information emphasizes dedicated bending software, back gauge axes, crowning, automatic sequence optimization, and integration with drives and automation.

Choose ESA when the supplier has real experience configuring the controller, drives, motors, safety package, and HMI together. The result can be very powerful, but the buyer should verify the exact application package rather than judging from the screen size alone.

• Machine builders needing open architecture and flexible fieldbus integration.
• Press brakes with large screens, 3D operation, or advanced auxiliary axes.
• Factories that want one automation platform across multiple machine types.
• Projects where the OEM provides strong training and controller support.

How Many Axes Do You Actually Need?

The controller must support the axis configuration you are buying today and the functions you may add later. Overbuying axes wastes money, but underbuying makes the machine hard to upgrade.

Offline Programming and CAD Import

Offline programming is often more valuable than a larger screen. It lets engineers build programs, assign tools, simulate bends, and transfer jobs before the machine stops. For busy workshops, this reduces setup waiting time and keeps operators focused on production.

Before buying, ask whether the quoted controller includes offline software or only supports it as an option. Also confirm file formats, licensing, number of seats, tool database synchronization, network transfer, and whether the simulation uses your actual punch, die, back gauge, and machine geometry.

Supplier Questions Before You Confirm the Controller

Ask these questions in writing before paying a deposit. They prevent many controller disputes that appear only after installation.

• What exact controller model and software version are included in the quotation?
• How many controlled axes are active, and which axes are reserved for future upgrades?
• Is CNC crowning controlled by the controller, manual adjustment, or a separate system?
• Does the machine include offline programming software, or is it an optional license?
• Can the controller import DXF, STEP, or other CAD files, and under which software package?
• How are programs, tools, parameters, and machine backups exported and restored?
• Which safety devices are integrated with the controller and which are separate?
• Who provides local controller service, firmware support, and operator training?

Rucheng Recommendations by Buyer Type

A good controller specification should follow the buyer profile. The right choice for a small HVAC shop is different from the right choice for a factory bending complex stainless enclosures or long structural parts.

Common Mistakes When Comparing Controllers

1. Comparing only the screen size instead of controlled axes and software functions.
2. Assuming a controller brand name automatically includes offline programming, CAD import, or 3D simulation.
3. Buying a high-end controller for a machine without matching back gauge, crowning, tooling, or operator training.
4. Forgetting to ask for parameter backups before shipment and after installation.
5. Ignoring local service availability for the controller, servo drives, valves, and safety devices.

Conclusion: Buy the Controller as Part of the Whole Machine

A press brake controller is not just a screen. It is the link between machine mechanics, hydraulics or servos, tooling, safety, operator skill, and production data. The right choice reduces setup time and scrap; the wrong choice creates daily friction even if the machine frame is strong.

If you are comparing Delem, Cybelec, and ESA controllers for a new CNC press brake, send Rucheng your part drawings, material range, desired axes, offline programming needs, and automation plan. We can recommend a controller and machine configuration that matches real production instead of a generic quotation.