Guide to Syringe Needle Tip Styles

Various needle tip styles have been developed for a range of applications to satisfy customer preferences. Other styles can be produced on request.

  Application / Description    Recommended Needle "SGE Code"

GC Autosampler

The cone shape needle has been specifically developed to withstand the multi injection demands of Autosamplers. They are also standard on microvolume and valve syringes.

 

 

 Cone needle tip - (Style #1) "C"

Cone Tip

Dual Guage

Dual gauge needles have a narrow gauge at the tip suitable for megabore on-column injection. The wider gauge for the remainder of the needle gives increased strength to the needle for autosampler use.

 

Dual Guage

Dual Gauge

Manual GC

A 20° bevel tip is the standard general purpose needle tip style supplied with SGE syringes. This style is designed for optimum septum penetration and prevention of septum coring.

 

 Bevel needle tip - (Style #2) "BV"

Bevel Tip

Manual GC

The same as the bevel tip, except a 0.7mm OD reinforcing sheath is silver soldered over the standard needle to within 10mm of the tip. The sheath provides exceptional strength to the needle.

 

 Sheathed/Bevel needle tip - (Style #4) "T"

Sheathed/Bevel needle tip

HPLC

HPLC valve injection syringes have 90° square tip needles with chamfered and polished edges to eliminate damage to the valve's rotor seal and stator face. This needle tip is also suitable for the pipetting of liquids.

 

 HPLC needle tip - (Style #3) "LC"

 HPLC needle tip - (Style #3)

Large Volume Injection

Liquid samples are filled and dispensed through the side hole. The solid domed tip minimizes septum damage.

 

 Side hole domed needle tip - (Style #5) "H"

 Side hole domed needle tip - (Style #5)

Biological

This style needle is recommended for use with pre-drilled septa. The tip is rounded and polished to facilitate septum penetration.

 

 Domed needle tip - (Style #6) "D"

 Domed needle tip - (Style #6)