It is hard to imagine the construction of press tools, blanking tools or injection moulds without the usage of various types of springs. For a long time engineers have used helical and disc springs, later the elastomer springs have been introduced and a few years later a dynamic growth of technology has enhanced the springs assortment by gas springs. Due to their many advantages, gas springs have gradually begun replacing the helical and elastomer springs. A gas spring is nothing more than a container filled with nitrogen with a maximum pressure of 180 bar. Particular types of gas springs vary in construction, operating parameters and the insertion process.
AZOLGAS is a pioneer in the design and production of gas springs in accordance with the Quality Management System, as one of the first manufacturers in 1994 to obtain the DIN EN ISO 9001 certificate issued by TÜV Rheinland. As a result of further commitment to improving quality standards, AZOLGAS received the ISO 14001 certificate. In addition, AZOLGAS springs are manufactured in accordance with the European Directive 97/23/CE for Pressure Equipment (PED), which was confirmed in 2002 by a certificate issued by ATISAE.
Advantages of gas springs:
Types of gas springs
The main purpose of using nitrogen linked systems in tools is to unify the pressure in individual gas springs. Thanks to this, the distribution of forces throughout the tool is uniform. The control panel located outside the tool allows you to control and adjust the working pressure of the entire system.
Advantages of nitrogen linked systems:
- balance the force in different areas of the tool
- load, unload and adjust pressure
- control the pressure through a control panel
- monitor and automate response actions using sensors
Types of nitrogen linked systems:
- M8x1 - most compact connected system for use in gas springs with an M6 charging port
- S12,65x1,5 (G1/8" Minimess) - most popular automotive standard, versatile with an easy coupling system
- M12x1,5 - intended for gas springs with high volume or high gas flow requirement
- 7/16” - intended for gas springs with high volume or high gas flow requirement
- 9/16” - recommended for high-vibration applications
Controlled gas springs
Pressing operations in modern tools often require the return of the gas spring piston rod to take place independently of the return movement of the press slider. To meet these challenges, AZOLGAS has created a number of solutions that allow you to slow down or even stop the return movement of the piston rod. A wide range of controlled gas springs allows for:
- minimise the impact of the return force
- reduce wear on gas springs and press components
- save energy consumption
- reducing the number of operations and tool dimensions
- prevent part deformation
Hot forming solutions
The New Mobility challenges of self-driving, connected and environmentally sustainable vehicles have led the automotive industry to expand the use of hot-stamping technology to structural car metal sheet parts.
The New Mobility challenges of self-driving, connected and environmentally sustainable vehicles have led the automotive industry to expand the use of hot-stamping technology to structural car metal sheet parts. Unfortunately, the hot stamping process itself takes place in an extremely unfavorable environment, where there are liquid or solid impurities, rust and high temperature.
However, the hot-stamping process creates a harsh working environment (solid-liquid and rust contamination) that significantly reduces the lifetime of gas springs and standard die components. Thanks to 15 years of field experience in hot-stamping applications, AZOLGAS can offer widely tested and suitable technical multi-technology (gas-hydraulic-pneumatics) solutions for hot forming.