CNC-CGT1500/1800 And CNC-CGU4000 Table Or Underwater Special CNC Plasma Cutting Machine

A. Two Typical Types of Special CNC Plasma Cutting Machine:

In practical application of CNC Plate Plasma Cutting Machine, besides conventional types of motor drive moving gantry type:

Wuxi JACK CNC-CG4000 model machine on plasma cutting: (Fig.1)

There are several types of special design, to cater for customer specific demand. For example:

1. Table type CNC Plasma Cutting Machine, to present high precise plasma cutting, with compact integral structure: (Fig.2)

2. Underwater CNC Plasma Cutting Machine, to decrease environmental harm caused from plasma cutting as much as possible, relieving operator potential risk on health harm: (Fig.3)

Here we have introduction on the above 2 specialized products, which have its unique position in the realm of metal plate plasma cutting.

B. CNC-CGT1500/1800 High Precision Table type CNC Plasma Cutting Machine:

1. Application of Table Frame CNC Plate Plasma Cutting Machine:

1) Task: Such machine is for carrying out precise plate shape cutting out small parts from thin thickness metal plates:

2) 1mm thickness Al plate, cut into complicated shape finished workpiece: (Fig.4)

3) Applicating Scenarios: Such compact and High Precision CNC Plasma Cutting Machine is not suitable for being used in large scale and relatively extensive working site such as Steel Structure/ Infrastructure project; Instead, the machine is “born” to be applied in delicate application scenarios, especially for cutting small size and thin (plus and or minus 10mm thickness) Non-ferrous metal sheet: Stainless steel/ Al, etc.;

4) Applied Industry: As an equipment for delicate plasma shape cutting, the Table type CNC Plasma Cutting Machine is usually used in scenarios of Shell processing for Electromechanical products; Light Industry; Ventilation Duct; Advertising Logo; Craft Decoration; Iron Garden; Automobile Production; Shipbuilding; Electrical Accessories; Chassis Electric Cabinet… In all, all the small size precise plate shape cutting of various material ferrous and non ferrous materials;

2. Advantage:

From perspective of customer, the table type machine has advantages of:

1) Cost Effectiveness in terms of “High End” Plate Cutting:

Cutting precision/ cutting kerf roughness/ cutting speed overlap with laser cutting performance, and with comparative reasonable machine cost and running cost, compact size and easy handling;

2) Top level reliability;

3) Satisfactory interference capability;

4) Easy operation and handling;

5) Easy to grade, strong practicability, and long using life;

So, this table frame machine is warmly welcomed by customers.

C. Technical View on CNC-CGT1500/1800 Table type High Precision CNC Plasma Cutting Machine:

1. Plasma Cutting Technology Adopted:

1) The machine is pure and sheer on plasma cutting, which means only plasma cutting system equipped, no flame cutting system;

2) Fine Plasma Cutting: Table type machine usually focus on precise plasma shape cutting. For this purpose, fairly percentage of application is equipped with fine plasma power supply, such as American brand Hypertherm HPR130/ HD4070, or Germany KJELLBERG Fine Focus 900;

2. Overall Structure of Table type CNC Plasma Cutting Machine:

1) Mechanical Main Body is of compact and integral table structure entity, integrating longitudinal cutting rails and horizontal beam, promising high rigidity/ good precision and easy installation. The entire set of machine is firm and durable;

2) Overall dimension of the machine main body is much smaller;

3) Integral Frame: In table structure machine, the cutting table and cutting horizontal beam are integrated, instead of separate type in the case of conventional gantry moving structure;

4) CNC controller and operating panel are made into a standing type operation station, which can be moved freely:

5) Wuxi JACK CNC-CGT1500 model in demonstration: (Fig.5)

3. Standard Specifications of Table type CNC Plasma Cutting Machine:

For table size, there are two grades of width (1,500mm and 1,800mm) mated with two grades of length (3,000mm and 5,000mm), hence totally four grades of machine size of:

1) 1,500mm Width x 3,000mm Length;

2) 1,500mm Width x 5,000mm Length;

3) 1,800mm Width x 3,000mm Length;

4) 1,800mm Width x 5,000mm Length;

Of cutting table structure;

4. Configuration of Table Structure CNC Plate Plasma Cutting Machine:

1) Quantity of Plasma Cutting System in One Machine:

Unlike gantry structure machine, which more than one piece of plasma cutting torch is not uncommon, in table type machine, due to its small size, generally the machine is equipped with one set of plasma cutting system only;

2) Specification of Plasma Cutting System:

Also, unlike gantry structure machine, which can be equipped with any models of plasma power supply, from cutting thin material of small current output, to cutting thick material of large current output, in Table type CNC Plasma Cutting Machine, the machine is generally applicable for being equipped with small medium specification only; 

3) Plasma Power Supply: Taking advantage of its super stable structure of mechanical structure, the table structure machine is very suitable for working with fine plasma cutting system;

4) Effective Cutting Size: The table structure machine size is close to valid cutting size on metal plate, only in slightly larger dimension. For example, here in CNC-CGT1500 model, the model refers to 1,500mm valid cutting width, and the corresponding worktable width is only 1,600mm;

5. Compact Size and Quick Set Up of Table type CNC Plasma Cutting Machine:

1) Saving Land Area: Unlike the conventional gantry type machine, the table structure machine has compact size, which occupies much less land occupation. For example, the 1.5m width x 3m length machine only takes 1.6m width x 3.2m length floor space;

2) Convenient Installation:  Installation of table type machine is just to secure the foots of machine frame into workshop floor, no necessary of jobs of: Making rail supporting beam/ Alignment of cutting rails/ Making cutting platform, under the condition of gantry type machine;

3) Easy Handling:     Besides, its handing process is also easier, benefitting from smaller size and integral structure. For these reasons, location and relocation of the table type machine is flexible and can be easily managed.

D. Technical Parameters of Table Structure CNC Plate Plasma Cutting Machine:

Models	CNC-CGT1500/ CNC-CGT1800
Applicable Metal Material	Ferrous and Non-Ferrous
Applicable Sheet Metal Thickness	0.3mm- 22mm  (Suggestion)
Cutting Worktable Width	1600 mm/ 1900 mm
Max. Sheet Metal Width	1500 mm/ 1800 mm
Cutting Worktable Length	3,200/ 5,200 mm
Max. Work Piece Length	3,000 / 5,000 mm
Drive for Cutting Torch Movement	Double Servo Drive
Applicable Thermal Cutting Way	Fine Plasma Cutting
Quantity of CNC Plasma Cutting Torches	Suggestion is 1 set
Min. to Max. Plasma Cutting Speed	1000 ~ 3000 mm/ min. (Inversed with cutting thickness)
Plasma Cutting Precision	±0.5mm/1000mm
Positioning Precision of Plasma Cutting Torch	±0.25 mm
Repetitive Positioning Precision	±0.2 mm

E. CNC-CGU4000 Underwater CNC Plasma Cutting Machine:

1. Background:

1) Operation of conventional dry type CNC Plate Plasma Cutting Machine generates certain amounts of fume and arc light, which is harmful to people health, especially eyesight and breathing, as well as environment protection;

2) Underwater plasma plate cutting is developed on this background: The machine perform plasma cutting with elimination of fumes and arc lights, in the way of making it absorbed into water;

2. Structure and Operation of Underwater CNC Plasma Cutting Machine:

1) The most conspicuous specialty with underwater plasma cutting is, it has a cutting platform infused with water, with water level changeable;

2) At the beginning of underwater cutting, gasbag is inflated with air, because its intake valve is switched on, making water level rises up quickly;

3) By the time the steel plate is inundated with water, the intake valve is shut off, and water level is kept at this level, during the next step of plate plasma cutting. All the fumes and arc lights generated from plate plasma cutting will be absorbed into water;

4) By the time underwater plasma cutting is completed, its gasbag discharges air with the switching on of its intake valve, making water level descends rapidly;

3. Impact on Cutting Capacity in Underwater CNC Plasma Cutting Machine:

1)  The positive side of underwater plasma plate cutting is, as mentioned previously, it is user friendly and environment friendly;

2) The negative side is, due to the effect from water, cutting speed/ cutting thickness/ finished product roughness degrades in certain degree (Around 15% less);

3) Meanwhile, for cutting metal plate of same thickness, underwater plasma cutting consumes 15% higher electricity than conventional dry type plate plasma cutting;

4) So, the solitary benefit brought along with underwater cutting e is its dust elimination and arc light absorption. So, which kind of machine, whether it is conventional dry type or underwater to choose from, is a compromise for customer to make decision;

4. Mechanical Characteristic of Underwater CNC Plasma Cutting Machine:

1) The machine frame is enhanced wide box body of lower gravity center, which is stress relived after welded into shape, making strong rigidity and good dynamic equilibrium;

2) Rails of gantry moving are of heavy duty 43kg U71 high strength type, with both its top surface and lateral surface machined with grinding;

3) This machine is equipped with IHS (Initial positioning unit), arc voltage torch vertical regular, and 360° anti-collision unit:

IHS (Initial positioning unit) of plasma cutting torch: (Fig.6)

F. Technical Parameters of CNC-CGU4000 Underwater CNC Plasma Cutting Machine:

Moving Gantry Width	4,000 mm
Max. Work Piece Width	3,200 mm
Cutting Rail Length	12,000 mm
Max. Work Piece Length	10,000 mm
Drive mode for Cutting Torch Movement	Double Servo Drive
Applicable Cutting Way	Underwater Plasma plate cutting
Quantity of CNC Plasma Cutting Torches	Suggestion is one set
Max. Quality Plasma Cutting Thickness	85% of Conventional Dry type Plate Plasma cutting
Max. Plasma Cutting Speed
Cutting Precision	±0.5mm/1000mm
Positioning Precision	±0.25 mm
Repetitive Positioning Precision	±0.2 mm