needle manufacturing

Needle Manufacturing

Modern Grinding manufactures custom and specialized prototype needles for the medical supplier community. We can work with your custom needle tip specifications to create custom needle grinding processes.

Due to our advanced grinding equipment we are able to achieve a variety of prototype designs. Modern Grinding's equipment is tailored to quick product turnover. We can help with small needle prototype runs and early design projects.

Medical Products

Some of the products we manufacture in addition to needles include

  • Guidewires
  • K-Wires
  • Hypotubes
  • Coils

    Some of the processes we can add to manufacturing your needle include tube swaging, skived tubing and EDM fabrication. For needle materials we can use hypodermic tubing, fractional tubing, seamless tubing, nitinol tubing and stainless steel.

    Medical Needles

    Modern grinding has manufactured medical needles including and similar to the following:

  • Chiba Needle
  • Franseen Needle
  • 18 gauge needle
  • Butterfly Needle
  • Tattoo Needle
  • Trocar Needle
  • VanSonnenberg Needle
  • Accupuncture Needle
  • Turner Needles
  • Greene Needle
  • Thinwall Needle
  • Stamey Needle


  • The following needle gauge chart is from Wikipedia for standardized needle sizes. Modern Grinding can make needles gauge 11-34.


    Needle GaugeOutside Diameter inchesOutside Diameter mmInside Diameter inchesInside Diameter mmWall mmWall mm
    110.123.0480.0942.3880.0130.33
    120.1092.7690.0852.1590.0120.305
    130.0952.4130.0711.8030.0120.305
    140.0832.1080.0631.60.010.254
    150.0721.8290.0541.3720.0090.229
    160.0651.6510.0471.1940.0090.229
    170.0581.4730.0421.0670.0080.203
    180.051.270.0330.8380.00850.216
    190.0421.0670.0270.6860.00750.191
    200.035750.90810.023750.6030.0060.1524
    210.032250.81920.020250.5140.0060.1524
    220.028250.71760.016250.4130.0060.1524
    22s0.028250.71760.0060.1520.01110.2826
    230.025250.64140.013250.3370.0060.1524
    240.022250.56520.012250.3110.0050.127
    250.020250.51440.010250.260.0050.127
    260.018250.46360.010250.260.0040.1016
    26s0.018650.47370.0050.1270.00680.1734
    270.016250.41280.008250.210.0040.1016
    280.014250.3620.007250.1840.00350.0889
    290.013250.33660.007250.1840.0030.0762
    300.012250.31120.006250.1590.0030.0762
    310.010250.26040.005250.1330.00250.0635
    320.009250.2350.004250.1080.00250.0635
    330.008250.20960.004250.1080.0020.0508
    340.007250.18420.003250.08260.0020.0508

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    In the News

    Check out Modern Grinding in a recent issue of Micro Manufacturing for a feature article about our micro manufacturing capabilities.




    Also, our very own Jim Boldig was recognized as a Top 30 under 30 Medtech Innovator by Qmed.


    Below is an interesting informational video about how needles are manufactured. Our process is more customized.