MAK 4 Evolution UD


Industrial sheet metal folding with state-of-the-art Up-and-Down technology – the MAK 4 Evolution UD features interesting details and extra options such as particularly rigid frames and main modules, extended opening heights (850 mm clamping beam, strong drives, speed optimizer, float-free planetary drive motors, options for back and front stops, or a safety PLC with light barriers to make the work areas safer. Thanks to our unique Advanced Handling Systems (AHS) – a further development of our well-know suction gauge, we can achieve the highest level of automation without any additional use of handling robots.


  • Software control
    • POS 3000 3-D Graphic control on swivelling arm
    • Radius function
    • Remote maintenance via internet
  • Back gauge system
    • Positioning gauge 10 – 3400 mm, 10 – 4250 mm and 10 – 5100 mm in U-shape with sectors, pneumatic pop-up gauge fingers, steel balls in sheet support table. Square arm 1500 mm left and right side. The segmented support plates can be removed to make room for downflange applications.
  • Clamping beam
    • Clamping beam stroke 1090 mm
    • Clamping beam geometry 180°
    • Hydraulic tool clamping of the clamping beam
  • Folding beam
    • Up’n Down folding beam, automatically controlled via POS 3000
    • Pneumatic tool clamping device
    • Motorized folding beam adjustment 180 mm
    • Motorized folding center adjustment 100 mm
    • Central crowning device motorized
    • Center point adjustment, converter-controlled drive
  • Work safety
    • Protection via light barrier controlled by safety-PLC for operation from the rear
    • Safety package for operation from the front, incl. 2nd foot switch on rail for lateral movement
  • Others
    • Foot switch
    • Anchor plates incl. dowels
  • Tools
    • Standard machine without tools

Technical data

Type Working length -Sheet thickness 400 N/mm2 Machine length Machine width
[mm] [mm] [mm] [mm]
3,200×6.0 3,240 6.00 6,420 2,652
4,000×5.0 4,040 5.00 7,220 2,652
5,000×4.0 5,040 4.00 8,220 2,652
Type Machine width with U-gauge Machine height Weight basic machine
[mm] [mm] [kg]
3,200×6.0 5,150 2,748 17,500
4,000×5.0 6,000 2,748 18,500
5,000×4.0 6,850 2,748 21,000
Clamping beam
Type Geometry Stoke Drive power Speed Clamping pressure
[°] [mm] [kW] [mm/s] [to]
3,200×6.0 180 1090 2 x 9.45 100 120
4,000×5.0 180 1090 2 x 9.45 100 120
5,000×4.0 180 1090 2 x 9.45 100 120
Folding beam
Type Drive power Speed Folding beam adjustment Folding center adjustment
[kW] [°/s] [mm] [mm]
3,200×6.0 2 x 9.4 150 180 100
4,000×5.0 2 x 9.4 150 180 100
5,000×4.0 2 x 9.4 90 180 100


POS 3000 3D graphic control:

Interactive sheet design
POS 3000 3D graphical controls is one of the most powerful controls on the market, and because both the hard- and software come from a single provider, the SPB Evolution UD and POS 3000 3D graphical controls are a perfect match.

Working with POS 3000 is extremely comfortable:

Clearly laid-out product selection including a search function and navigation in submenus enables the operator to select work steps and connect them in the production plan menu to create sequences. Individual product profiles can be designed very quickly via the intuitive finger-activated drawing feature. The exact dimensions may be entered and changed in the dimensioning menu. In order to check and coordinate together with the customer, the drawing may be output on paper using a printer.

Using the program that is created, the software generates the optimal sequence of bends, including automatic collision and threshold value monitoring. The folding angle and cut are corrected automatically using interpolation from the database.

Unfold software – Schröder Unfold

Uncomplicated and simple

In order to coordinate hardware and software perfectly, Hans Schröder Maschinenbau developed an unfold software to calculate the blank size and program with effortless preciscion.


Special equipment

  • Clamping beam
    • Speed Optimizer Z-axis drive (max. axis speed: 120 mm/sec)
  • Control
    • External programming
    • Schröder Unfold software
  • Back gauge
    • Suction plates in gauge table, program-contolled incl. 2 pneumatic pop-up square arms assembled aisle side
  • Others
    • Tool cart for blades, rails and segmented tools
    • Voltage transformer 52 kVA
    • Air conditionier on both switch cabinets
    • Overseas packaging
  • Safety
    • Additional equipment for 2-man-operation control in accordance with accident prevention rules required
  • Tools
    • Several clamping beam-, folding beam- and bottom beam tools

Fully automatic tool changer

Complex tools and small batches – no problem with the industrial folding machine MAK 4 Evolution UD from Hans Schröder Maschinenbau with top options: the fully automatic tool changer. In a matter of seconds the clamping beam and optionally also the folding beam can be equipped with tools.


  • Fully automatic tool changer for clamping beam tools with a hydraulic tool clamping device (a total of 8 axis) for max. tool height of 400 mm (without toolings)
  • Two asynchronously movable tool changers with one gripper unit each
    • incl. safety fence with lateral access door
    • incl. air conditioner on both switch cabinets
  • Additonal option: automatic tool changer for folding beam tools with pneumatic tool clamping device (without toolings)
  • Central lubrication, program-controlled via POS 3000

Clamping beam tools

  • Tool depth 190 mm, ca. 1100 N/mm, oberflächengehärtet (gasnitriert)
  • Goat’s foot blade (ab Radius 1,0 mm), 30°, clearance 70 mm; height: 300 mm or 450 mm
  • Hinged corner parts