Custom Membrane Switch, Panel & Keypad Manufacturer & Supplier

ALMAX is a custom membrane switch panel and keypad manufacturer and supplier. Check out the guide on what membrane switches are amd how they work.

Custom Membrane Switches Manufacturers & Experts

ALMAX is a custom membrane switch keypad manufacturer able to provide a complete solution from simple resistive touch to complex touch backlit solutions complete with electronics & plastic or metal enclosures.  Our membrane switch company began as an engineering consulting firm and has grown to own three manufacturing plants.  OEMs and membrane switch re-sellers trust our engineering and manufacturing teams to support custom membrane switch keypad applications from concept design through volume manufacturing.

Our Custom Membrane Switch Keypad Capabilities

Membrane switch innovation has fueled ALMAX’s growth into a leader in the manufacture of custom membrane switch keypads.  Our engineers have developed proprietary membrane switch technologies including:

  • Membrane switch back-lighting – MaxFilm
  • Perimeter Sealed keypads
  • Capacitive touch keypads – including proximity & glove
  • Metal appearing membrane keypad finishes
  • Smart Keypads with serial communication I2C, UART, or SPI

We help companies build custom membrane switch keypads that look and work beautifully.

Types of Membrane Switch Keypads Manufactured by ALMAX

ASTM defines a Membrane Switch: “A momentary switch device in which at least one contact is on, or made of, a flexible substrate”. This definition should also have stated that the membrane switches momentary action results in a “Resistive” contact between two conductive surfaces that allow current to flow (switch closure). This definition leaves a lot of doors open for design constructions and materials that still satisfy the requirement that “at least one contact is on or made of a flexible substrate”. The layer below the membrane layer is referred to as the “Static Layer”. Examples of both layers are listed here:

Types of Membrane Switches:

  • Membrane Layers
    • Polyester film with printed silver
    • Polyimide film with etched copper
    • Metal Domes – also provides tactile sensation
    • ALMAX Actuators – also provides tactile sensation
    • Silicone Rubber with carbon contacts
  • Static Layers
    • Polyester film with printed silver
    • Polyimide film with etching copper
    • Printed Circuit Board with etching copper – also can provide rigid support

From the Membrane & Static Layers listed above, you can build many types of Membrane Switch Keypads.  The look and feel can be completely different but the Membrane Keypad will include either a Non-Tactile or Tactile Membrane Switch (or both).

  • Non-Tactile Membrane Switch
    • Membrane Force Sensor (switch resistance decreases as force increases)
  • Tactile Membrane Switch
    • Metal Dome
    • ALMAX Actuators
    • Rubber Keys
      • Externally Tactile – tactile response from the layer below rubber.
      • Internally Tactile – tactile response from rubber key rubber webbing.
    • Polyester Dome – formed in the internal polyester circuit layer
    • Dome Emboss – formed in the decorative polyester top layer
    • Sealed Membrane Switches

Applications for our Membrane Switch Panels

When a touch input is required a membrane switch keypad will almost always be a solution of choice.  See examples of keypads used in the industries listed below.

Appliances / White Goods

Automotive / Transportation

Commercial Equipment

Communications

Consumer Products

Data Processing

Industrial Controls

Instrumentation

Medical

Military / Aerospace

Office Automation

Point of Sale

Why ALMAX’s Custom Membrane Switch Keypad Product Line?

  • 20 Years of membrane switch design expertise
  • Proprietary membrane switch keypad technologies
  • Extensive membrane switch keypad product line
  • Membrane switch keypad design and engineering support
  • Flexible lead times – Quick Turn prototypes available
  • Competitive pricing – off-shore and domestic
  • US-based engineering and customer service teams
  • Easy ordering – purchase order or major credit card

Custom Membrane Switch & Button Purchasing Services

ALMAX provides the following membrane switch keypad ordering services:

  • US membrane switch keypad prototypes in as little as 24 hours
  • Off-shore membrane switch keypad prototypes in as little as 5 days
  • No minimum order value (MOV)
  • Most quotes returned in 24 hours or less
  • Single-source supplier to transition from prototype to volume production
  • US-based engineering support
  • Customer service (8 am – 5 pm PST)

Our membrane switch experience includes three manufacturing sites, membrane switch design engineers, and cost engineering to help you build a high-quality, high functioning custom membrane switch.  Our custom membrane switch applications include medical membrane, industrial membrane, and high-end consumer membrane switch keypads.  Our engineering and sales staff can help you select the correct technology that meets your keypad performance and price requirements.

Contact our engineering team for value engineering services, a review of your membrane switch keypad design or to explore how our design team in combination with our membrane keypad prototype capabilities can help you get a better product to market faster.

Our Membrane Switch Manufacturing Process

  1. Manufacturing Drawings Approved
  2. Emboss & Cutting Tools Initiated
  3. Sheet Materials Cut to Size
  4. Printing Films & Screens Created
  5. Printing Inks Mixed & Color-Matched
  6. Screen Printing of Circuits & Graphics
  7. Embossing
  8. Cutting
  9. Assembly
  10. Testing
  11. Quality Inspection
  12. Packaging
  13. Ship

20 Years Of Innovation

ALMAX began as an engineering consulting company founded by two engineers well known in the electronic switch industry.  Solving human interface problems was the core business, but with many issues surrounding how membrane switches were manufactured, the founders realized that true membrane switch innovation required control over the membrane switch manufacturing process.

In 2005 started their first ALMAX owned factory with membrane keypad manufacturers and have grown to own three sites: one domestic membrane prototype facility and two off-shore membrane switch manufacturing plants with prototypes to volume capability.

Ready to Try ALMAX as a Membrane Switch Keypad Supplier?

If you want membrane switch electronics without the graphic overlay – ALMAX can do that.  If you want a complex membrane switch including a graphic overlay – ALMAX can do that too.

ALMAX supplies custom membrane switches in volume to global OEMs, single-piece prototypes to VC-seeking start-ups, and high-quality membrane switch electronics to membrane switch graphic overlay printers and other re-sellers. Because of our product depth and manufacturing control we can often produce custom membrane switches at prices like an off-the-shelf membrane switch.  Purchasing teams save time because our sales team delivers responsive service from quotation through shipment.

Unless you enjoy online commodity catalogs, purchasing your membrane switch from ALMAX may be the easiest way to meet your project goals.

Our responsive sales team will quote most membrane switch products within 24 hours and our North American engineering support can help with your membrane switch design or provide manufacturing cost assessments.

From a simple membrane switch to a full box-build, ALMAX has the membrane switch manufacturing breadth you need to increase your membrane switch quality while reducing your membrane switch pricing.

Membrane Switch Definition & How It Works

ASTM defines a Membrane Switch: “A momentary switch device in which at least one contact is on, or made of, a flexible substrate.” This definition should also have stated that the membrane switches momentary action results in a “Resistive” contact between two conductive surfaces that allow current to flow (switch closure). This definition leaves a lot of doors open for design constructions and materials that still satisfy the requirement that “at least one contact is on or made of a flexible substrate”. The layer below the membrane layer is referred to as the “Static Layer”. Examples of both layers are listed here:

Can You Remove A Membrane Switch Keypad?

If the membrane switch keypad circuit layer is a polyester or polyimide film or thin PCB it can be removed but cannot be reused.  The adhesive bonding the membrane switch keypad to its rigid support is very aggressive and when peeling it up the force to remove requires a strong peel-pull force which bends and will damage all of the internal layers and components.     If the membrane switch keypad circuit layer is a rigid (thick) FR4 PCB material it is possible that that the force to remove will not bend the circuit enough to damage the layers above the PCB and possibly can be reused.    Of course if the membrane switch keypad is held in place with mounting screws or threaded fasteners makes it very easy to be removed without damage.

Need a Membrane Switch Prototype?

No MOV. 24 hour to 5-day prototypes.

membrane switch prototypes

Call: 888-211-6325

We’ll get you pricing, a delivery date and start your order.

Key Contacts

Sales/Engineering

888-211-6325
info@almaxeis.com

Easy Ordering

Your purchase order is always welcome.

For your convenience we take additional methods of payment.  Our sales team can answer questions about our order process and forms of payment.