Solid-State HMI Solutions

Piezoelectric Keyboards

Heavy-duty, solid-state keyboards utilizing piezoelectric crystal sensors to detect finger pressure. Completely sealed within solid metal plates (anodized aluminium or stainless steel), offering IP68/IP69K sealing, high vandal resistance, and up to 50 million cycles for extreme environments.

Submersible IP68/IP69K IK10 Vandal-Proof Made in India
Piezoelectric Keyboards
Solid Metal Plate1.5mm to 3mm Thickness
Piezo SensorsZero Friction, 50M Cycles
Hermetically PottingMoisture & Ingress Proof
Piezo SwitchSolid-State Tech
Up to 50MSwitch Cycles
IP68 / IP69KSubmersible Ingress
IK10 RatedVandal Resistance
Glove & WetInput Compatibility
Key Features

Indestructible keys with solid-state piezo sensors

Designed to deliver absolute seal protection, extreme temperature compliance, and high vandal protection on open access panels.

Solid-State Piezo Switches

Integrates piezo ceramic rings behind solid plates. Finger pressure creates micro-deflections (< 2 microns) to trigger key outputs.

Complete Ingress Sealing

Achieves dynamic IP68 and IP69K sealing. Fully immune to hot steam washdowns, direct spray, and subsea submersion.

IK10 Vandal-Proof Rating

Chassis milled from solid aircraft-grade aluminium or stainless steel, resisting hammer blows, tools, and heavy abuse.

Zero Mechanical Wear

Eliminates spring-load contacts, mechanical hinges, and moving membranes. Delivers up to 50 million cycles with zero fatigue.

Glove & Tool Activation

Switches respond directly to key deflection pressure, allowing operators to actuate keys using heavy gloves, pens, or keys.

Flat Sanitary Surface

Can be constructed as a completely flat sheet without gaps, helping hospitals and food processing lines wipe down surfaces.

Solid-State Piezo Keyboard Construction
Indestructible Design

Indestructible control keys for extreme environments

Keetronics piezo keyboards combine solid-state longevity with absolute environmental isolation. By eliminating moving contacts and sealing the sensors behind a solid, continuous metal front plate, we construct HMIs that are completely impervious to sand, salt water, high-pressure steam, oil, and vandalism.

  • Solid metal faceplates with zero key-gaps to trap dirt or germs
  • Neoprene back potting for total protection against shock and moisture
  • Multi-color LED indicator rings integrated into switch borders
  • Single cable USB, PS/2, or matrix connections to internal systems
Technical specifications

Technical Metrics

Switch Technology

Switch typePiezoelectric Ceramic
Key deflection< 2 microns (No travel)
Actuation force3N to 5N (Configurable)
Switch lifecycleUp to 50M operations
Operating voltage5V to 24V DC / AC

Material & Build

Front faceplateAluminium / Stainless Steel
Plate thickness1.5mm to 3.0mm
Key markingsLaser-etched / Engraved
Potting sealantPolyurethane / Epoxy resin
Mounting interfaceRear welding studs

Environmental

Ingress sealingIP68 Submersible / IP69K
Impact resistanceIK10 Vandal-Proof rating
Operating temp.−40 to +85°C (Extended)
Chemical immunityAcids, Solvents, Detergents
Salt spray testMIL-STD-810H compliant

Electrical & I/O

I/O interfacesMatrix, USB, PS/2, RS-485
Switch currentUp to 200mA (AC/DC)
Contact resistance< 10 Ohms (active state)
ESD protectionUp to 20kV air discharge
OS compatibilityWindows, Linux, Embedded
Switch Engineering

Solid-state component layout

XTAL
Piezo Ceramic Ring

Frictionless crystal elements placed inside metal cavities to convert actuation pressure directly to voltages.

POTT
Resin Back Potting

Complete filling of the rear metal casing with polyurethane potting, locking out moisture, condensation, and vibration.

SHAP
Active Signal Shaper

Built-in circuitry extending the nanosecond piezo pulse into standard millisecond logic data for client controllers.

RING
Illuminated LED Rings

CNC milled switch borders piped with colored LED lightguides to provide status and alignment visuals.

Configure to spec

Optional additions

Customize lighting, feedback options, and surface detailing.

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Multi-Color LED RingsStatus LED rings integrated on key borders to guide operators in dark bays.
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Integrated Haptic BuzzerAcoustic sounder or vibration motor to confirm key press on travel-free keys.
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Engraved PaintingCharacters engraved directly into the metal plate and filled with chemical paints.
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Heavy Deflection TuningFirm switch configurations (up to 10N) to prevent accidental pressure trigger.
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Subsea Potting StackAdvanced resin potting systems built to resist high pressure inside submersibles.
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Anodized Color StylingMetal plating color options (silver, black, gold, bronze) to complement control consoles.
Applications

Where it is used

Public Access Kiosks
Food & Beverage Plants
Chemical Processing Lines
Submersible & Marine
Oil & Gas Refineries
High-Vandalism Terminals

Ready to integrate piezo
solid-state switches?

Tell us your faceplate choices (anodized aluminium or stainless steel), key actuation thresholds, optional lights/haptic alarms, and connector matrix - we will construct it.

Solid-State travel-free switch
Submersible IP68 & IP69K sealing
Solid IK10 vandal-proof frames
32+
Years
Experience
2000+
Projects
Completed
1000+
Satisfied
Clients

Trusted by leading organizations across defence, medical, industrial, and railway sectors worldwide.