Application and advantages of PMT waterjet cutting:
PMT Waterjet Cutting Machine is an effective tool for any shape of artistic creation. The traditional cutting method is saw cutting only in a row. When cutting the curves, the model should be made according to the size and then polished. Waterjet Cutting Machine can cut any shape of models under the control of the CNC program.
1. Smooth cutting quality is perfect.
2.The cutting accuracy of waterjet cutter is up to 0.1mm. Edge joints are regular, and water jet cutting can also make very complex puzzles and murals.
3.Cutting speed is fast, and product consistency and interchangeability are very good.
4. Drilling, cutting and forming can be done at once.
5. Improve the working environment and reduce the impact of dust and noise on the operator.
6. Waterjet cutting is a cold cutting that does not damage the internal structure of the material.
7. It is the only machine for processing composite materials and fragile porcelain.
8. Waterjet Cutter can cut metal, rubber, foam, plastic, composite materials, stone, ceramic tile, marble,glass, etc.
Product Description
50HE High presssure pump structure includes water supply system, hydraulic system, and the intensifier system (or named high pressure system).
water supply system
The main engine needs two water sources for cutting and cooling, thus we need two drainages: the
cooling water drainage and the water leakage drainage.
Special definition is listed below:
Cutting water: The intensifier must be supplied with water of 20-1000psi (1.4-6.9bar). The input
water should not less than the output water by 1.5 times. If the water source contains dissolved
solid(esp. silicate and calcium), the orifice life would be shortened. If the filter system cannot
correct the water quality, extra water treatment facility must be installed.
Cooling water (for the heat exchanger): The heat exchanger is used to adjust the accumulated heat
in the hydraulic oil. The hydraulic oil functions the best at the temperature of 40 ºC.The cooling
water is first led to the heat exchanger for the intensifier and then to the exchanger for the
hydraulic oil pump. The cooling water flow should be enough as to ensures that the temperature in
the oil tank is lower than 43 ºC. The standard water flow is 11 lpm for each power horse at
15ºC.The water contains a little minerals and acid will be helpful to thermal transmission and the
prolongation of the heat exchanger life.
Hydraulic system
The hydraulic system consists of pressurization, filtration, and cooling systems. The
intensification principle is: a motor of 37kw drives the hydraulic pump, then the pump will
pressurize the hydraulic oil up to 20Mpa max. The pressurized oil is pushed into the oil cylinder
through the electro-hydraulic directional valve. There is a sensor on either side of the oil cylinder.
The directional valve will receive a signal when the piston inside the cylinder is approaching to
one end of the cylinder. The piston will travel to and fro, making the high pressure water
continuously.
The filtration system is three steps filtration. They are oil filling filtration, outlet filtration, recycle
filtration.
waterjet Intensifer system
The intensification system mainly refers to the intensifier, but it also includes other components in
the water circuit that make the lower pressure water into high pressure water. Specifically, it
includes intensifier, accumulator, high pressure tube, connector etc.
Intensifier is main part of the intensification system. A section for the intensifier 's principle,
structure, and maintenance is contained in this manual.
Electrical control system
The electric control system is integrated into the control panel, including PC, control circuit. This
control system is used to start/stop the main engine and adjust the speed.
The function of the display, buttons and knobs on the panel is listed below.
"power indicator" controls the power.
"voltage meter" indicates the working status of the PC.
"currency meter" displays the currency of the motor of 18kw.
"master switch" switch for the general power supply.
"Pump & main engine switch" start/stop the main motor
"high pressure/abrasive switch"
"emergency stop"
| 1.2PMT-50HE High Pressure Pump |
|
Dimension(L*W*H) |
1800*1000*1400mm |
|
| Weight |
1200Kg |
| Power rate |
37kw/50hp |
| Max. pressure |
420Mpa /4200bar |
| Working pressure |
300-350Mpa |
| Max. oil discharge |
104L/min |
| Max. Flow rate |
3.7L/min |
| Φ of orifice |
0.30-0.33mm |
| Power supply |
380V 50hz |
| Water supply |
≥15.1L/min |
| Hydraulic system |
Bosch Rexroth brand |
| Cooling system |
Air cooling system |
Cutting Table
Attributes:
PMT waterjet cutting table consists of transmission part with X axis, Y axis and Z axis, water tank, cutting head, lubrication part and servo driving system. Gantry mechanical structure is fit to large size machines, long running distance of X and Y axis, suitable for processing a variety of complex big size parts.
The cutting table is a 2-D pc-controlled table, consisting of Y-axis, catcher, X-axis, Z-axis (cutting
head rest), cutting head, high pressure hose, and the abrasive box. Both the X-axis and the Y-axis
are installed with linear guide and ball screw. The control system instructs the servo motor which
drives the ball screw. The cutting head assembly (Z-axis) is installed on the ball screw, so that it is
realized to start, stop, shift, and change the speed of the cutting head rest. The X-axis travels
alongside with the Y-axis, and the Z-axis travels alongside with the X-axis. The positive and
negative direction is defined as follows: standing in front of the cutting table, your left-hand side
is negative direction of X-axis, the opposite direction is positive; the X-axis 's advancing direction
is positive, and the opposite is negative. Being instructed by the control panel, the X and Y axis
moves together, leaving the sophisticated picture on the workpiece accordingly.
Y-axis is actually working as the base of the cutting table. It is welded with a polished surface, on
which the linear guide and the bearing housing for the ball screw are fixed. The linear guide is
used to guide the X axis's travel and support it. The servo-motor is installed on the driving end of
the screw ball and the decorative panel is also attached to the Y axis.
The linear pair and the ball screw pair ensure the accuracy of the travel and make the action of
starting, stop, shift and speed change highly reliable. In order to ensure that the cutting head rest
travels accurately, the X axis is also equipped with linear pair, ball screw pair, and servo motor.
| 1616 Working Table & Controllor |
|
| Model |
1616 |
2516 |
3020 |
4020 |
6020 |
| Dimension(mm) |
2650*2150mm |
3400*2150mm |
4250*2300mm |
5250*2300mm |
7250*2300mm |
| Max. cutting range |
1600*1600mm |
2500*1600mm |
3000*2000mm |
4000*2000mm |
6000*2000mm |
| Travel of Z axis |
180mm |
| Servo system |
Yaskawa,Japanese Brand |
| ball-screw linear-rail |
ABBA,Taiwan Brand |
| Re-positioning accuracy |
±0.025mm/m |
| Cutting accuracy |
±0.1mm |
| Max. running speed |
15000mm/min |
CNC Controller
|
Power supply |
AC220V 50/60Hz |
|
| Drawing system |
Auto-CAD |
| Computer system |
Windows 7 |
| Function |
Moving controller |
| screen |
Apply 19 inch LCD |
Water jet software
NC-Studio-V10 |
Support DXF file and anyauto programming software to produce NC code |
3-Axis cutting system
| 3.1 Three-axis cutting system |
|
Re-positioning accuracy |
±0.02/1000mm |
|
| Cutting accuracy |
±0.15/1000mm |
| Max. prussure |
420mpa |
| Orifice type |
SM2 |
| Nozzle type |
6.35*0.76/1.02*76mm |
| running travel of Z axis |
180mm |
| Max. running speed |
15000mm/min |
| application |
Normal Cutting |
Training for Waterjet Equipment
| 4 Technical Training |
| 1 |
basic working principle of the super-high pressure water jet cutting machine |
| 2 |
working principle of the high-pressure system and supercharge |
| 3 |
replacement of the high-pressure sealed, low-pressure sealed and high-pressure parts |
| 4 |
maintenance of the high-pressure system and judgment and troubleshooting of common failures |
| 5 |
CNC Programming&operation&operation of the NC cutting platform |
| 6 |
daily maintenance of the NC cutting platform |
| 7 |
equipment installation |
| 8 |
abrasive control and transportation operation and CNC communication |
| 9 |
operation of the CAD / CAM software and CNC communication |
| 10 |
working principle, maintenance and judgment and troubleshooting of common failures of the main high-pressure functional parts, high-pressure water switches and abrasive cutting head |
Service:
| 5 After-sales Service |
| 1 |
Free warranty for the whole machine for one year or 2000 high-pressure/hour |
| 2 |
Training of two personnel for operation and maintenance of equipment and one computer operator for the user |
| 3 |
On-line installation and commissioning (the user is responsible for board and lodging) |
| 4 |
Lifetime maintenance |
| 5 |
To Guarantee long-term supply of spare parts |
| 6 |
| To enjoy upgrade of special prices when there are new products and technologies |
|
| 7 |
Repair response time: during the quality assurance period, when the user's equipment fails, respond within 24 hours after receipt notice. For a common failure, direct the user to resume production as soon as possible by way of telephone or e-mail |
The cutting speed for PMT water jet cutting machine
The cutting speed of mini waterjet cutting machine varies depending on the material, thickness, desired cut quality, water pressure and the machine itself configuration, Generally for PMT waterjet, you could find the following speed just for your reference.
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