Services & CapabilitiesIn-Line Transfer & Progressive Deep Drawn Metal StampingCNC Milling & CNC Turning ServicesWire Electrical Discharge
Machining (EDM)

Precision Metal Forming & In-Line Deep Drawn Metal Stamping of Brass Button Assemblies

This Button Assembly is used within a sprinkler head in a fire suppression system.  It is comprised of a copper Button into which a brass Insert is press fit.  This assembly is designed such that a glass bulb applies pressure to the assembly which acts as a plug preventing water from flowing until the ambient temperature around the sprinkler reaches a designated level.  During a fire, liquid inside the glass bulb absorbs heat and expands breaking the glass bulb and releasing water to extinguish the fire.

Produced on a 325 US Baird transfer press at 150 strokes per minute, the Insert is fed into the tool's progression via a feeder bowl and inline track.  It is press fit into the Button as it is being formed  A completed assembly is produced with each revoution of the 325 US Baird transfer press it is run on.

6,000,000 units are produced and degreased at Gem annually.

  Precision Metal Forming Brass Button Assembly
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Precision Metal Forming Brass Button Assembly
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Highlights of this Precision Metal Forming Brass Component

Product Description These brass button assemblies are used in a sprinkler head for used in a fire suppression system.
Precision Metal Forming
Capabilities Applied/Processes
Custom Die Design and Manufacturing
In-Line Transfer Deep Drawn Metal Stamping
In-Machine Assembly
  • Press Insert into Button Housing
  • Completed Assembly Produced And Inspected With Each Revolution of the Machine (Approx. 120/Min)
Inspection Services
Packaging Services
Equipment Used to
Manufacture Part
325 US Baird Transfer Press
Tightest Tolerances +.003"/-.000"
Flatness of .001"
Material Used Button: CDA110 Brass
Insert: 360 Brass
In process testing/inspection performed
Dimensional Inspection
  • Standard Gauges
  • Custom Gauges
  • Optical Comparator
  • Visual Inspection
Pressure Testing
Industry for Use Fire Suppression
Volume 5,000,000 Units Annually
Delivery/Turnaround Time 4 - 6 Weeks After Receipt of Order
Standards Met Customer Supplied Print, 2D CAD Drawing
Product Name Brass Button Assembly
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