WHY US  /  MANUFACTURING CAPABILITY

A Switch Looks Simple, Making One That Lasts Takes Precision

Inside every limit switch, a contact touches another contact and a circuit closes. Doing that reliably across millions of cycles, through dust, oil, and vibration, depends on each step of the build.

Here Is How One Of Our Switches Comes Together

Each station adds to the product and checks the station before it. By the end of the line, the work has passed through seven checkpoints.

1
Raw Material
Zinc castings Copper strip Stainless steel
2
Stamping
Contact arms Terminals Brackets
3
Tapping
Thread cutting Thread gauging
4
Riveting
Silver contacts Center alignment
5
Sealing
Rubber cap Gasket fitting
6
Assembly
Final build Laser marking
7
Inspection
Electrical test Visual check Packaging

The Story Behind the Components

Each Step Shapes The Switch Your Customer Receives

Select a step to see what happens, why it matters, and how we control it.

The Shape Of The Metal Determines How The Switch Behaves

A press cuts copper strip and stainless steel into contact arms, terminals, and brackets. A contact arm stamped half a millimeter off sits at a different angle inside the switch. Same model number, different actuation feel.

We stamp in house so dimensions match the drawing each time. Every batch is measured before it moves to the next station. Parts that drift outside tolerance stop here.

Thread Depth Keeps The Cover Sealed And The Environment Out

If the thread is too shallow, the screw strips under torque. If it is cut at an angle, the cover sits crooked and the seal becomes uneven. Either way, moisture finds a path inside.

 

We tap in house and gauge every housing. Thread depth, pitch, and angle are verified before the part moves on. A cover that stays sealed means a switch that stays dry.

Where The Two Contacts Meet Determines How Long The Switch Lives

A silver contact must be fixed dead center on a copper arm. A riveting press drives it through and flares the back side, locking the alignment. Center contact means the full surface mates evenly, on cycle one and on cycle two million.

 

The common shortcut is a screw, which leaves alignment to a hand. A hand drifts. A misaligned switch still works on day one. It fails sooner. Each riveted assembly is inspected before it moves on.

The Seal Is The Last Barrier Between The Mechanism And The Outside

On our metal body switches, a full rubber cap sits between the base and the operating mechanism. Press the actuator and the cap flexes inward while the perimeter stays sealed. Dust, oil mist, and water stay outside.

 

The cheaper path is a rubber ring around the shaft. Press it, and the edge lifts away from the housing. A gap opens. A metal switch is bought for harsh environments. The seal earns the housing its purpose.

TMAZTZ: Full Rubber Cap

Common Practice: Rubber Ring

A Switch Is Only As Consistent As The Line That Builds It

Stamped parts, tapped housings, and riveted contacts converge at the assembly line. Laser stations etch a production date and model number onto every housing.

 

Calibration stations at the end of each line test contact resistance, insulation resistance, and operating force. Every switch, every time. A switch that passes earns its mark. A switch that fails is quarantined for review. Nothing ships without a test record.

Many Switch Models Share The Same Core By Design

The core, the mechanism that opens and closes the circuit, is identical across many of our models. What varies is the head, which triggers the switch, and the housing, which protects it. Because cores are shared, we build and inspect them ahead of time. When your order arrives, final assembly takes a few days.

MATERIALS
The Housing Material Decides How The Switch Weathers Its Environment
Every aluminum housing is ADC12, a refined alloy that fills the mold more completely. The surface emerges with full detail, fewer fill defects, and holds paint evenly. The material costs more. The mold cycle runs slower. You get a housing that resists corrosion, looks consistent on a panel, and matches the sample you approved.
Image description
MATERIALS
The Contact Surface Keeps Resistance Stable Over Time
Every contact is composite: a copper base with a thick silver overlay. Copper conducts. Silver resists the arcing that erodes the surface with each cycle. On low current circuits, we add gold plating to block oxidation, the film that raises resistance below the wetting threshold. Twenty five milliohms on day one, twenty eight after two million cycles. Specify it once.
Image description

TRACEABILITY

Manufacturing Traceability

Laser-marked units are traceable through the mark on the housing, enabling fast root cause analysis, targeted corrective action, and complete closure when needed.

MANUFACTURING

See How Your Switch Gets Built

Book a virtual tour. We walk you through the line, station by station.