» CNC Machines » Portal » Uniport4000


travelling bridge CNC machining centre


Large, flat components machined fast

Industry leading table-size-to-cost ratio

Flexible all-rounder

For OEMs in the metalworking industry flexibility is extremely important. This makes the Uniport 4000 the ideal gantry style machine for a whole range of applications, particularly for large and relatively flat components. This compact travelling bridge CNC machining centre is the smallest portal machine in our range and has a stationary machine bed and a movable bridge. The rigid construction and double cross rail ensure high stability. Options include split work zones for pendulum machining, an extra fast spindle for high-speed cutting, and more tool pockets.


  • Tailor-made
  • Dynamic features
  • Easy to monitor

Tailor-made CNC Machine

The Uniport 4000 can be tailor made to suit many different requirements by adding custom fixtures and rotary tables for example. The ratio of table size to costs is one of the best in the industry and means all our customer specific solutions offer excellent value for money. Each one is based on proven Unisign technology, backed up by over 40 years of experience.

Dynamic features

The 36 kW main spindle rotates at 12.000 rpm (option: 16.000 rpm) and features closed-loop cooling to provide high thermal stability. There is a double cross rail construction on the Y-axis for high rigidity, and electronic synchronised X-axes drives can be fitted to both sides to increase the rigidity even further. The working area of the large Y-axis can be extended to 3.500 mm.

Easy to monitor

The open bed design of the Uniport 4000 provides excellent chip flow as well as good visibility to help monitoring of the process. Automatic tool changes from the chain-type storage with 39 pockets are standard on the CNC machine.

technical specifications

This CNC machine, the Uniport 4000, is available with two main spindle configurations, 36 kW at 12.000 rpm or 16.000 rpm. The main spindle is equipped with an HSK-A63 or ISO40 interface.

  • work area
  • spindle
  • various
  • accessories

work area

  • X-axis
    2.000 - 20.000+ mm
  • Y-axis
    1.500 - 3.500 mm
  • Z-axis
    500 mm
  • Vertical clearance
    610 mm
  • Width between column
    1.050 - 3.550 mm


  • Direct driven spindle
    36/58 kW
    12.000/16.000 min-1
    180 / 135 Nm


  • Tooling
  • Taper size
    HSK-A63 / SK40
  • Number of pockets
    # 39/78
  • Tool change time
    8 sec
  • Speed
  • Rapid traverse
    40.000 mm/min
  • Feed Rate
    5 - 40.000 mm/min


  • Linear scales
  • Pendulum mode
  • Tool measuring and tool break via laser
  • Siemens / Heidenhain

CNC machine applications

  • Aerospace
  • Oil & gas
  • Energy
  • Truck
  • Train

Requiring one of the highest chip removal rates in the market, the aerospace industry needs high dynamic machines. The Unipent4000 and Unipro5000 for example are ideal for volume production in this demanding environment and can remove 10 litres per minute of aluminium while maintaining the highest accuracy. For extra large parts or engine components, the Uniport6000-HV, Uniport7000, Unicom6000 and Unicom7000 machines offer the best solutions.

applications for aerospace

Find out more

Pumps and valves for the oil & gas industry can be highly complex parts to produce with seals, gaskets, flanges and requirements like spiral grooves and elliptical conical eccentric turning. The machining centres from Unisign, with their high degree of automation and specially designed software, are a unique solution capable of milling parts that others cannot.

applications for oil & gas -+

Find out more

Heavy duty turning, milling and drilling characterises the production of components for energy-producing equipment like (wind) turbines. So you need a CNC machine that can take the load. A mill-turn machining centre like the Unicom6000, Unicom7000 and the Uniport7000-MTC or a multi-functional Uniport6000 and Uniport7000 are the ideal solution for producing these demanding parts.

applications for energy

Find out more

With over a million truck front axles being produced every year on Unisign machines it’s fair to say that we know what we are talking about in applications like these for the truck makers industry. We have established a world leading position by introducing the Unitwin6000, a CNC machine with two very powerful main spindles. The improvement in quality and reduction in cycle time is astonishing!

applications for truck

Find out more

For everything from bogies to wheels and weld preparation to wheel carrier machining, Unisign has highly versatile machines like the Univers6000, Uniport6000 and Uniport7000. These moving column and gantry style machining centres are part of the machine tool program that have been designed to deliver extremely high capacity, dynamics, rapid acceleration and offer a generous working area.

applications for train

Find out more


Related CNC machine types