FAQ

Q Do you have some excel file which can calculate total costs of the waterjet during work?

A
Yes, l lised the running cost for your reference In china,

1. Electrical fees: Rated power is 30kw. China electric fees is 0.15UsD/h, so total cost is 4.5Us

2. Abrasive: Max 20kg/h, total cost is 2usD/h.

3. Water:3L/min. One day needs 1.5T, water fees is very cheap in China,so we ingore it.

4. Spare parts: 1.5-2USD/h.lf you have any questions,welcome to contact me any time.
Q What is advantage of direct driver pump compared with hydraulic intensifier pump

A
Comparison of servo direct drive pump and hydraulic pump:

1. The choice of motor
The hydraulic booster pump uses a 37KW asynchronous motor. The power conversion ratioof the motor is about 80%~85%. HEAD direct drive pump using a 15KW permanent magnetmotor. The power conversion ratio of the permanent magnet motor is 97%. Therefore, thepower saving of only one motor is: 60% or more

2. The way of pressure conversion

The hydraulic booster pump is an asynchronous motor that drives the plunger pump togenerate oil pressure. The hydraulic system converts the oil pressure into water pressureand the direct drive pump is a process in which the motor drives the crankshaft connectingrod to directly generate water pressure. lt will cause energy loss, about 35%, so the directdrive pump is about 35% more energy efficient than the hydraulic booster pump.The hydraulic intensifier pump pressurizes the oil through the reversing valve and then converts it into water pressure. The reversing valve will reduce the pressure at the momentof commutation, causing fluctuations in water pressure. For example, to set a pressure of50,000 Psi, the minimum pressure after the fluctuation can reach 43,000 Psi, and the average pressure is about 45,000 Psi.The direct drive pump can maintain a constant pressure, setting 50000Psi, the output waterpressure is 50000Psi, so the cutting efficiency will be greatly improved, (50000-45000)45000=11%, cutting efficiency will increase by 10% -20%.
3. Control mode

Hydraulic intensifier pump is generally started by star triangle direct starting ,although it canreduce some starting current, but the impact on the power grid and power consumption isstill very large. The direct drive pump uses a fully intelligent frequency converter to controlthe operation of the servo motor. The motor will start to work only when there is outputfrom high pressure water. When the high pressure water has no output, the motor will stoprunning. This will reduce the consumption of electricity and play a role in energyconservation.
4.Take the processing of tile mosaic as an example (set the working pressure to 50000Psi):work 12 hours a day, the actual cutting time (high pressure water output time) is about 5hours, 37KW asynchronous motor is rated on the hydraulic pump The average powerconsumption is 20 degrees / hour, 20*12 = 240 degrees / day, calculated according to 300days of work, 240x300 = 68000 degrees, HEAD direct drive average of 5 degrees / hour, 5*12=60 degrees /day,60*300 =18000 degrees. Therefore, the direct drive pump can savecustomers about 50,000 degrees per year.For users, the longer they work each day, the more power they save
Q Does a waterjet cutting machine require special training?

A Yes, operating a waterjet cutting machine requires specialized knowledge and training. Most manufacturers offer training programs to help operators understand the machine's functions, software, and safety precautions. Proper training ensures that the machine operates efficiently and safely, minimizing errors and downtime.
Q Can I see the machine before purchasing it?

A Yes, you can contact us, and we will provide you with detailed contact information and the local address of customers using the equipment in your region. You can visit these locations to see the machine in operation.
Q What is the maintenance schedule for a waterjet cutting machine?

A Regular maintenance is essential for ensuring optimal machine performance. Basic maintenance tasks include checking the water filtration system, replacing nozzles and abrasive components, and ensuring proper lubrication of moving parts. A maintenance schedule should be followed, typically consisting of weekly, monthly, and annual checks.

As Head has a strong research and development, production sales and service team, Shenyang Head Science and Technology Co.,Ltd has become well-known enterprises in waterjet cutting machine manufacturer field.