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Portal CNC Milling Machines - Series High-Z

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 Professionals, model makers and hobbyists have long been waiting for this machine. Together with our development department and engineers from the machine construction and electronic sector, we have developed a machine, which is setting new standards with regard to dimension, cost/perfomance ratio and stiffness as well as stability by its new geometry.  Due to its new frame construction it excels by its variety of applicability.

The frame being made of aluminium, it is also possible to work with an atomized spray plant, which is not possible – of course – with an understructure of particle boards! Additionally, this way you can work at bigger working pieces in stronger bench vices. The complete construction is all in all by approx. 50% lighter.

Place the Machine firmly on a 4x5 meter PU-Plate and mill individual letters out........no problem.

No specific CNC programming-knowledge is necessary for the operation!

 You simply create drawings, model sketches or texts in any drafting sofware, e.g. Corel Draw, CAD programmes etc.. These may easily be sent to the milling machine as HPGL-file from the delivered CNC-Software PCNC.  Milling specific settings can be set in our milling  software  e.g. speed of operation, scaling, series of milling, immersion depth of the individual tools  etc.  Once you have become acquainted with the software, operation is quick and easy!

3D – Milling - possible with machines from our High-Z Series.

3D objects created in a 3D-CAD system are saved/exported as STL-files and subsequently imported into the milling software DeskProto.  Tools parameters, infeed, strategy and accuracy etc. are determined and saved as CNC-file, which our milling software PC-NC or WinPC-NC will use to create your 3D-solid model.Manufactured in Germany this machine complies all technical requirements according to German ad European law ( CE-approved ).

Precision and the use of high quality material was our priority during the 11-month long development phase. In our preceding investigation, we unfortunately had to realize that not every reputable and well-known manufacturer offers high quality and robust machines respectively. ("Super-expensive" not always means “Super Quality” in this sector!).

With regards to stiffness, construction and therefore long-term precision CNC-Step milling unit is by far superior to the competing products of which some are far more expensive. We focus specially on the storing of the threaded spindles. Those are in X and Y at both sides in grooves and thrust ball bearing so that no power is transferred to the engine camp, which is rather unusual in this price segment.

A further "Plus" is the frame construction.  Our Z-Kits are specially designed to lift our machines higher off the ground, so that e.g. working pieces can be clamped in strong bench vices for further use.      The complete machine can also be placed onto a larger housing of e.g. 1x2x3 meter to mill out a breakthrough, etc. The High-Z is capable of these tasks. 

We did not have the aim to design a machine with utopian express speeds, but to focus specially on  criteria which are important for our customers.  Reliability, high quality components as well as stability and cost/performance ratio, basically good value for money.

With a working area of x-720, y-440, z-110 mm and a passage height of 100 mm as well as a repeat accuracy of 0,03 mm and a maximum positioning speed and a working speed of 1250 mm/min. it is for almost all milling and engraving works in plastics, wood as well as easier chipping in aluminium or brass etc. particularly suitable. Of course, this CNC- machine may also be used for blank drilling, insulation milling or even for cutting of plastic films . Another possibility: use the machine for plasma-burn and build a holder for a mobile plasma-burner.

The machine slides are guided in all 3 axes on highly precision 62 Rockwell hardened and grinded linear guide ways with a diameter of 20mm  ( Z-Axis: 12mm ). This leads to a very high twisting rigidity and allows even milling works in massive aluminium   Please refer to our videos. Threaded spindles are running in ball bearings on both sides, so that no vibration can affect motor mountings and supports.99,9% of all milling tasks can be done with material up to a maximum depth of 5mm.  It is rarely necessary to use material with thicknesses of 80, 90 or 100mm or more..

Most machines of our competitors are constructed with an Y-Axis center of approx. 300mm minimum height above the machine base.  Of course, such constructions   bring about high leverages and breakdown torque during milling operations, especially when thin material is used. This has not only an impact on the accuracy of the working pieces, but also on the long life cycle of the machine.  The sketch shows the red force distribution line of a machine construction which some competitors make use of.

The more similar the length of the legs of the triangle the more stable is the machine; the bigger the difference in lengths of legs the more instable its construction.  Sketches show a milling operation with material of 5mm thickness.

 

Construction Diagram of HIGH-Z

Construction Diagram of competitor

Construction Diagram of competitor in direct comparison

ungünstige Geometrien bei Portalfräsmaschinen

click to enlarge

How to fasten material to  our HIGH-Z

For clamping of flat or complex pieces, engraving material, sheet metal or sheet-timber easily, just fix an MDF-board to the base, mill it once to smoothen. For flat materials or for engraving, you only fasten a further, but plastics coated board on the MDF-Board. Use double-sided sticky tape to fix thin material.

A device for holding down pieces for engraving will additionally be delivered free of charge.  Make sure that

thin engraving material always lays flat on the base in order to avoid difference in engraving depth.  The operation manual shows examples of how to fix flat sheet material easily, to guarantee a precise milling operation.

CNC-Step also offers a T-slot plate which can be used to fasten complex pieces to a reasonable price.

How to fasten large working pieces to our HIGH-Z

We have developed the HIGH-Z in a way that you can also work on pieces of any size.  You want to create an engraving or a complex cut e.g. in a housing of 1mm edge dimension or larger, at a later stage?

Arrange the machine over the piece to work on. With our z-Axis extension kit, which is optionally available, you can work on an area of 200x400mm.

 

Video over the efficiency of WIN PCNC

In the Video we drive a 3D travel with a speed of 50mm/sec. with a high-Z S-400 are 3000mm/min. We let additional run and hear in the backround Windows applications music over the Windows mediaplayer. Try once with another control software .  Here there is used DIN ISO the program as Download. DThe feed motion is adjusted in WIN PCNC however to a maximum speed by 50mm/sec. is kept firm in the program to 1000.

BWith the 3D shown in the video travel concerns it a test presentation. The engines are short thereby before the load limit, whereby inevitably during still faster travel step losses would develop. The maximally recommended cruise are substantially smaller laid out therefore in the manual, in order to ensure a walk-loss-free and torque-strong working of the engines. The video is to only illustrate the stability of WIN PCNC with a high expenditure for clock frequency.

technical datas