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GAS Springs - SELECTION ASSISTANT

GAS SPRINGS

The Smart Alternative to a Latch Locking Unit FIBRO Mould Line Gas Spring

FML Gas Spring is specially developed for mould making and is characterised by its high force, its small size, a long service life at least 1,000,000 strokes and a constant operating temperature of 120°C.

The use of this spring type provides the majority of functions as a latch locking unit.

Gas springs MOULD LINE are an ideal supplement to and expansion of the traditional FIBRO product lines of helical, disc and elastomer springs for manufacturing tools, devices, moulds and machines. Gas springs can be used for all applications where lift movements are required in parallel to mould opening.

Gas springs MOULD LINE are filled with nitrogen and do not require any pressure space that is positioned externally or in tool plates. They also require no gas supply lines.  In certain special cases, however, monitoring of charge pressure in the installed state is required. These may be found in the list of accessory products if needed. 

As long as all mounting details are laid out with due circumspection, it is no problem at all to remove and install gas springs MOULD LINE.  

Functioning The pressure medium is a commercially available, environment-friendly nitrogen. MOULD LINE gas springs have a standard charge pressure of max. 150 bar. 

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Pressure build-up 

In operation the piston rod enters the spring space whose volume is progressively reduced. With an increasing stroke length, the volume of the pressure chamber is reduced. The resulting increase in pressure can be read from the diagram of the spring size as a factor. The final force is therefore the initial spring force x pressure build-up factor. 

Operating temp. The spring temperature should not exceed +120 °C.. 

Charge pressure Modification of charge pressure allows variation of the force rating and can be predetermined from the spring diagram.

 Installation recommendations 

MOULD LINE gas springs can be used in any installation position. Whether or not external forces act on them when at rest is of no consequence. And can therefore be calculated easily.

MOULD LINE gas springs are designed for long-term maintenance-free operation. We recommend lightly oiling the piston rod before using. Sealing and guide elements can be replaced easily in very little time. They are available in a spare parts kit. Each spare parts kit comes with detailed instructions for maintenance of gas springs.

Advantages of the FIBRO MOULD LINE range:

  • Very little calibration work required in the tool 
  • No lubrication required 
  • No maintenance required for up to 1.000.000 strokes1)
  • Variably adjustable forces
  • for mould temperatures of up to 120°C
  • Approved as per the European Pressure Equipment Directive 2014/68/ EU (14th GSGV regulation for pressure vessels) 
  • Standard safety features (FIBRO Safer Choice)2) 
  • Safety piston rod 
  • Excess pressure protection 
  • Overstroke protection 
  • A pressure monitoring system makes it possible to recognise an impending failure at an early point (prevention) 
  • No tool breakage if the 2nd separation level is locked (the plate comes to a standstill; after the jam is removed, production can be resumed) 
  • Used worldwide in one million FIBRO gas springs 
  • Cost savings: approximately 60-70%  (e.g. compared to a latch-locking unit)

FIBRO ADVANTAGE
SAFETY FEATURES

PED APPROVAL FOR 2 MILLION STROKES

THE BENEFITS FOR YOU

  • PED approved for 2 million’ full strokes
  • Guaranteed safety and reliability for the entire service life of the spring

OVER STROKE PROTECTION

FIBRO GAS SPRINGS ARE DIFFERENT

The patented protection system against overstroke ensures either deformation of the spring cylinder wall in a predefined manner (A) or rupturing of the bolt by the piston rod at the bottom of the cylinder (B) thereby allowing the gas to escape into the atmosphere.

RETURN STROKE PROTECTION

FIBRO GAS SPRINGS ARE DIFFERENT

If the speed is too high during the return stroke, the collar on the piston rod will automatically break. The integrated patented safety stop in the piston rod then destroys the seal, allowing the gas to escape into the atmosphere and the gas spring to become depressurized

OVER PRESSURE PROTECTION

FIBRO GAS SPRINGS ARE DIFFERENT

If the pressure rises above the maximum permitted value, the safety collar on the sealing set is automatically destroyed allowing the gas to escape into the atmosphere, thus de-pressurizing the gas spring.

FIBRO ADVANTAGE
RELIABILITY FEATURES

FLEX GUIDE SOLUTION

The Flex GuideTM System is a flexible guide in the gas spring which absorbs lateral movements of the piston rod. It minimises friction and lowers the operating temperature

THE BENEFITS FOR YOU

  • Extended service life
  • Increased stroke frequency, i.e. more strokes per minute

SAFE HOSE CONNECTION, THE DUAL SEALTM SYSTEM

THE FIBRO DUAL SEALTM SYSTEM COMBINES METAL SEAL WITH A SOFT ELASTOMER SEAL

THE BENEFITS FOR YOU

  • Leak- Tight Connections, even under Vibration
  • High process reliability
  • Minimized tool down time
  • Simple installation thanks to anti-rotation function

WIRELESS PRESSURE MONITORING SYSTEM (WPM)

FIBRO GAS SPRINGS ARE DIFFERENT

If the speed is too high during the return stroke, the collar on the piston rod will automatically break. The integrated patented safety stop in the piston rod then destroys the seal allowing the gas to escape into the atmosphere and gas spring to become depressurised

PROTECTED PISTON RODS

THE BENEFIT FOR YOU

  • Significantly longer service life for gas springs under harsh operating conditions
    Additional feature Heavy Duty Protection, HDP Series:
  1. Double the lifetime of the gas spring
  2. Fits all standard gas springs & all mounting options without any modifications