Cost-cutting pressures relieved. Improved productivity with robotised waterjet cutting solutions

Regardless of whether it’s a question of metal, acrylic, glass or textiles, industry makes use of water jet cutting for a wide range of materials. That is why one Swedish company, Projet System, has specialised in high-pressure pump systems for a broad variety of applications.

Saving energy is important
The Earth’s resources are limited. In response to customer demands for HP pumps that use less energy and require smaller main fuses, Projet System has announced the launch of their Proline Eco friendly HP Pump range.

The ProLine Series is available in a number of versions with differing specifications and these can also be modified to suit special needs. The new pump works as a team with the Sytronix drives controlling the variable speed of motor/pump.

The magic words: demand-driven
Projet System has fitted the HP pump with an intelligent Sytronix drive controller from Bosch Rexroth. With this custom solution the Sytronix regulates the motor speed in order to maintain the pump swivel angle and pump displacement volumes to the optimum. So the solution always delivers exactly the amount of power needed – exactly in line with demands. To accomplish this, the system calculates the pump’s actual swivel angle in three different ways and a pressure transducer continuously registers the required flow rate and the pressure prevailing in the system. Where the load varies, this configuration can reduce energy consumption.

Results from long-term field testing show an energy reduction of more than 50 percent. One side effect, no less important to the customers, is that the noise is also reduced at lower speeds. Beyond the drive controller, no other components are needed to achieve this improvement.

In short the flow and pressure transducer sense flow rate and the pressure required and the drive controls the rpm of the motors, in line with the demand of flow and pressure required. This means the Sytronix regulates the speed thus the power consumption of the electrical motors in the line with demand. The higher the share of variable load the greater the saving potential, thus energy consumption can be reduced by up to 80%.

The ProLine Series is the result of many years of industry research and development combined with our extensive experience of working with waterjet cutting technology. One of the features is the proven, industrial high-pressure intensifier with Zirconia super polished ceramic plungers.

High pressure pump system
The ProLine model includes a series of high pressure pumps ranging from 30 to 100 hp and can be customised with the SL IV, SL IV+ or SL V intensifiers. The ProLine Series is based on industry standard components such as Siemens soft start, Siemens PLC, and an operator panel from Siemens.

Improved productivity with robotised waterjet cutting solutions
Regardless of whether it’s a question of metal, acrylic, glass or textiles, industry makes use of water jet cutting for a wide range of materials. That is why Projet System has specialised in high-pressure pump systems for a broad variety of 3D cutting applications with Motoman robots

For further details contact Yaskawa South Africa on TEL: 011 608 3182 or visit www.yaskawa.za.com