Product Catalogue

Gx RTF® and Gx® bulk luer lock syringe

Cone Cone Luer lock
Size Size 1.5 ml
Material Material Glass
Height Height 43.20 mm
External Diameter External Diameter 10.85 mm
Internal Diameter Internal Diameter 8.65 mm
Closure System Closure System Gx TELC®, Tip Cap

Bulk and “ready-to-fill” format
Gx® bulk prefillable luer lock glass syringes 1.5 ml are washed, sterilized, and filled by the customer. For this form, there is a division of labor between the primary packaging manufacturer and the pharmaceutical industry where we provide the unsterilized syringe bodies in flat trays (Rondo trays).

Gx RTF® luer lock syringes are washed, siliconized, pre-assembled with tip caps or the patented Gerresheimer Gx TELC® closure systems and sterilized with ethylene oxide (EtO) by Gerresheimer Medical Systems. This means we deliver the prefillable glass luer lock syringe completely prepared for aseptic filling.

Gx RTF® luer lock syringe 1.5 ml are packed in nests (100 nest, 10x10) for easy handling and filling. These nests are suitable for all usual filling systems.


Various closure systems

Tip Cap: Mushroom
EtO-sterilizable rubber formulas: Datwyler FM27/FM30, Stelmi 6580, West 1883, 7025/65, 7028/55, other formulas available upon request

Gx TELC®: Tamper Evident Luerlock Closure
EtO-sterilizable rubber formulas: Datwyler FM27, Stelmi 6580, West 7025/65, other formulas available upon request

Advantages Gx TELC®

  • Patented integrated luer lock closure system
  • Luer lock adapter with tamper-evident property
  • Convenient and intuitive opening caused by soft touch surface and easy grip design
  • No unintentional pop off
  • Manufactured of polycarbonate (Luer Lock adapter) and medical grade Thermoplastic Elastomer (sealing cap with tamper-evident flags) using two-component injection molding
  • TPE parts offer color coding of the syringe
  • Insert is made of pharmaceutical rubber like FM27, 7025, 7028, 6580 GS can be chosen
  • Specified opening and spinning forces
  • Fulfills ISO 594 requirements
  • Steam-, gamma- and EtO-sterilization possible


Various options for siliconization
Siliconization is critical to ensure reliable function of prefillable luer lock syringes. It ensures optimal syringe performance for delivering medications. Thanks to the hydrophobicity of the silicon layer, potential interaction between the glass and the drug formula is reduced. As a standard, our prefillable glass syringes are spray-siliconized using diving nozzle technology in order to ensure an even coating with the smallest possible amount of silicone oil. We also offer our Gx® Baked-on RTF® glass syringes, which are patented in Europe and the USA for the packaging of sensitive biotechnological medications that may interact with free silicone oil droplets. In this procedure, a silicone oil emulsion is applied to the inner surface of the syringe body and subsequently thermally fixated on the surface by heating. This significantly reduces the number of free silicone oil droplets. Despite the considerably reduced amount of silicone oil, the prefillable syringes offer reliable hydrophobic properties and especially low breakout and gliding forces that remain stable throughout the storage period.

Advantages of the Gx Baked-on RTF® syringes

  • Reduced interaction risk between drug formulation and silicone oil
  • Drastically reduced amount of silicone oil droplets below the visibility threshold
  • Masking and inactivation of the glass surface
  • Standard-term stable, evenly distributed, and chemically inert lubricity coating
  • Very even break loose and gliding force profile
  • Ensures optimal functionality and drug formula stability over the period of medication storage
  • Patented in Europe and USA


Various possibilities for printing
For the individual printing of the glass syringe body of the prefillable luer lock syringe 1.5 ml we offer the most varied possibilities for printing such as metal-free paints, ceramic printing on glass, various designs of graduation, dose mark, various colors and other options on request.

Syringes as a complete system
Gx® bulk and Gx RTF® prefillable luer lock syringe 1.5 ml can be provided with glued in cannula can be provided as a complete system with plunger stopper, plunger rod and backstop.

Product Inquiry

Rolf Kitiratschky
Sales Europe
Phone: +49 (0) 5223 164 437
Mail: r.kitiratschky@gerresheimer.com

Karen Kanyok
Sales USA
Phone: +1 856 405 9737
Mail: k.kanyok@gerresheimer.com

Jacky Hu
Sales Asia
Phone: +86 769 8851 7100 328
Mail: j.hu@gerresheimer.com

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