Lab Needles

Hamilton Company’s Needle Cleaning Kit contains a 70 mL bottle of Cleaning Solution Concentrate and tungsten cleaning wires in five sizes. Refer to the table below to determine the optimum size and part number of cleaning wires for your needles.

Safety data sheets (SDS) are documents that allow for the documentation and logging of the potential risks and hazards associated with a product or substance. Hamilton Company provides SDS sheets for many of it's syringe and needle parts and accessories. Download the safety data sheet for Hamilton's needle cleaning solution.

Take a look at our useful syringe and needle assembly guide. See how to easily assemble and disassemble or lab syringes. We combine the highest quality materials with skilled craftsmanship, ensuring the highest possible performance of every precision fluid device we manufacture. With proper care and handling, the Hamilton needles will provide years of use.

The "s" represents a smaller inner diameter for the needle and a thicker needle wall for better durability. For example, a 26 gauge needle has an outer diameter of 0.46 mm and an inner diameter of 0.26 mm while the 26s gauge needle has an outer diameter of 0.47 mm and an inner diameter of 0.13 mm. The 26s has half the inner diameter of the 26 gauge needle. The difference in the wall thickness also nearly doubled with 26s gauge having a thickness of 0.18 mm while the 26 gauge is only 0.10 mm.

If you already have a syringe and need a Hamilton needle, you can determine the appropriate needle if you know one of the following: 1) the glass syringe termination; 2) the glass syringe part number; or whether you are dealing with a common plastic syringe. Click the heading to learn more.

Dead volume is defined as the volume of solution that remains in the needle after an injection. Many methods require or would benefit from a fluid path with as little dead volume as possible. This is because the fluid being transferred is of high value and it would be desirable to limit any loss.

Hamilton offers a variety of different laboratory needle point designs. Needle termination selection is very important to the proper function of an application. Lab needles need to perform in many different environments. Terminations are available in non-coring, beveled, drilled side port and more.

Needle length is a critical consideration for every application. Each needle hub design requires a slightly different length definition. It doesn't matter if the application is utilizing lab needles for life science injection or environmental analysis of ground water, the injection needs to hit the right target. This guide illustrates how to make the different measurements.

In addition to being inert stainless steel, lab needles require proper sizing in order to function properly. The diameter of a needle is defined by its gauge. Hamilton company offers a wide spectrum of gauges. This index displays the internal and outer dimensions and the dead volume.