Quick-Shield
  • Quick-Shield
  • Quick-Shield

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Gamintojas: Spira Manufacturing

Quick-Shield

This patented spiral is the best low cost EMI gasket solution. The spiral is wound out of spring temper stainless steel for excellent spring memory and compression set resistance. The stainless steel spiral exhibits moderate to high shielding properties at a very low cost.

Quick-Shield Part Numbers (Stainless Steel) Recommended Groove Dimensions
Diameter Standard Force* Moderate Force Low Force Depth (L) +.002”-.000” Width (G) +.007”-.005” Width (W) +.000”-.002”
.034”± .002” NI-02 -- --  .023”  .046” .033”
.047”± .002” NI-03 NM-03 NC** -- .035” .063” .045”
.063”± .003” NI-04 NM-04 NC NL-04 NC .046” .094” .060”
.070”± .003” NI-.070 NM-.070 NC NL-.070 NC .053” .094” .067”
.078”± .003” NI-05 NM-05 NC NL-05 NC .059” .109” .075”
.094”± .004” NI-06 NM-06 NC NL-06 NC .070” .125” .090”
.103”± .004” NI-.103 NM-.103 NC NL-.103 NC .077” .141” .099”
.109”± .004” NI-07 NM-07 NC NL-07 NC .082” .156” .105”
.125”± .004” NI-08 NM-08 NC NL-08 NC .094” .171” .121”
.139”± .005” NI-.139 NM-.139 NC NL-.139 NC .104” .187” .134”
.141”± .005” NI-09 NM-09 NC NL-09 NC .105” .187” .136”
.172”± .005” NI-11 NM-11 NC NL-11 NC .128” .234” .165”
.187”± .006” NI-12 NM-12 NC NL-12 NC .140” .250” .181”
.250”± .007” NI-16 NM-16 NC NL-16 NC .185” .343” .240”
.312”±.009” NI-20 NM-20 NC NL-20 NC  .234”  .422” .300”

Moderate and low force gaskets come with a cord unless specified otherwise. (See Options.)

* All standard force gaskets come without a cord.
** These sizes cannot be ordered with a cord.

The low cost and moderate shielding of this gasket offer an excellent solution for meeting FCC and European Community EMI requirements. Combining it with a die-cast or molded “pinch boss” groove gives you the optimal price/performance combination.

MATERIALS

Spiral: Stainless steel. (Also available in a passivated version.)
Cord: “No cord” is the default to keep costs low. See Options if cord is desired.

SHIELDING QUALITY

This gasket offers shielding quality in excess of 95 dB at 1 GHz. The shielding quality may vary depending on the specific application. Refer to page 49 for more complete performance data.

COMPRESSION FORCE

Quick-Shield gaskets come in three different resiliencies (as shown below). Optimal compression of the gasket is 25% of the diameter of the spiral. Since the force to compress the gasket is a function of the cube of the thickness of the stainless steel ribbon, the compression forces shown are approximate.

Standard Force: ~30 pounds per linear inch compression.
Moderate Force: ~10 pounds per linear inch compression.
Low Force: ~1.5 pounds per linear inch compression.

MOUNTING

This gasket is groove mounted.

CORD INSERT

Part of the low cost of Quick-Shield gaskets is achieved by omitting the cord insert. If over-compression of the gasket is a concern or problem, remove the “NC” from the part number on the moderate and low force series gaskets to request cord. Example: NM-06 NC will come without a cord. NM-06 will include a cord. All Standard Force gaskets come without cord (no NC required).

NC: No Cord (Example: MS-08 NC)
All Standard Force gaskets come without cord (no NC required).

CUSTOM SIZES

We can manufacture Quick-Shield gaskets in any size diameter, from .034” up to approximately 1.5”. The functional length of the part may be small at very large diameters. Please contact us with your requirements.

PLATING

Now available in passivated stainless. Please contact us for ordering details.

For other plating options, please see Ultra Quick-Shield.

SPLICING OPTIONS

Spira has created three standard options to treat the splicing of material in our spool selection.

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This patented spiral is the best low cost EMI gasket solution. The spiral is wound out of spring temper stainless steel for excellent spring memory and compression set resistance. The stainless steel spiral exhibits moderate to high shielding properties at a very low cost.

Quick-Shield Part Numbers (Stainless Steel) Recommended Groove Dimensions
Diameter Standard Force* Moderate Force Low Force Depth (L) +.002”-.000” Width (G) +.007”-.005” Width (W) +.000”-.002”
.034”± .002” NI-02 -- --  .023”  .046” .033”
.047”± .002” NI-03 NM-03 NC** -- .035” .063” .045”
.063”± .003” NI-04 NM-04 NC NL-04 NC .046” .094” .060”
.070”± .003” NI-.070 NM-.070 NC NL-.070 NC .053” .094” .067”
.078”± .003” NI-05 NM-05 NC NL-05 NC .059” .109” .075”
.094”± .004” NI-06 NM-06 NC NL-06 NC .070” .125” .090”
.103”± .004” NI-.103 NM-.103 NC NL-.103 NC .077” .141” .099”
.109”± .004” NI-07 NM-07 NC NL-07 NC .082” .156” .105”
.125”± .004” NI-08 NM-08 NC NL-08 NC .094” .171” .121”
.139”± .005” NI-.139 NM-.139 NC NL-.139 NC .104” .187” .134”
.141”± .005” NI-09 NM-09 NC NL-09 NC .105” .187” .136”
.172”± .005” NI-11 NM-11 NC NL-11 NC .128” .234” .165”
.187”± .006” NI-12 NM-12 NC NL-12 NC .140” .250” .181”
.250”± .007” NI-16 NM-16 NC NL-16 NC .185” .343” .240”
.312”±.009” NI-20 NM-20 NC NL-20 NC  .234”  .422” .300”

Moderate and low force gaskets come with a cord unless specified otherwise. (See Options.)

* All standard force gaskets come without a cord.
** These sizes cannot be ordered with a cord.

The low cost and moderate shielding of this gasket offer an excellent solution for meeting FCC and European Community EMI requirements. Combining it with a die-cast or molded “pinch boss” groove gives you the optimal price/performance combination.

MATERIALS

Spiral: Stainless steel. (Also available in a passivated version.)
Cord: “No cord” is the default to keep costs low. See Options if cord is desired.

SHIELDING QUALITY

This gasket offers shielding quality in excess of 95 dB at 1 GHz. The shielding quality may vary depending on the specific application. Refer to page 49 for more complete performance data.

COMPRESSION FORCE

Quick-Shield gaskets come in three different resiliencies (as shown below). Optimal compression of the gasket is 25% of the diameter of the spiral. Since the force to compress the gasket is a function of the cube of the thickness of the stainless steel ribbon, the compression forces shown are approximate.

Standard Force: ~30 pounds per linear inch compression.
Moderate Force: ~10 pounds per linear inch compression.
Low Force: ~1.5 pounds per linear inch compression.

MOUNTING

This gasket is groove mounted.

CORD INSERT

Part of the low cost of Quick-Shield gaskets is achieved by omitting the cord insert. If over-compression of the gasket is a concern or problem, remove the “NC” from the part number on the moderate and low force series gaskets to request cord. Example: NM-06 NC will come without a cord. NM-06 will include a cord. All Standard Force gaskets come without cord (no NC required).

NC: No Cord (Example: MS-08 NC)
All Standard Force gaskets come without cord (no NC required).

CUSTOM SIZES

We can manufacture Quick-Shield gaskets in any size diameter, from .034” up to approximately 1.5”. The functional length of the part may be small at very large diameters. Please contact us with your requirements.

PLATING

Now available in passivated stainless. Please contact us for ordering details.

For other plating options, please see Ultra Quick-Shield.

SPLICING OPTIONS

Spira has created three standard options to treat the splicing of material in our spool selection.

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