Reed Relays and
Electronics India Limited
Manufacturer of Reed Switches, Reed Sensors and Reed-based products
Reed Relays and Electronics India Limited Incorporated in 1971
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Reed Switches

Production of Reed Switches

The production of a Reed Switch requires many highly controlled process steps from Stamping to Sputtering to hermetic sealing done in Clean Rooms that comes from years of experience in the Reed Switch business. The following are the list of steps used in our production process.

 

Wire Inspection

Wire Inspection

Nickel-Iron wire inspection is conducted for straightness, surface pits, marks or scratches, diameter uniformity, hardness, smoothness and tensile strength. Continue reading

Reed Pressing

Reed Pressing

The Nickel-Iron wire is spin straightened and pressed into reed blades. The pressed reed blades are checked for physical dimensions, straightness, and visual defects. Continue reading

 

Degreasing

Degreasing

Reeds are degreased to remove grease, oil and dust that comes out of the pressing process. The ultrasonic cleaning plant has a built in cooling system to minimize vapour loss of the cleaning solvent. Continue reading

Annealing

Annealing

Degreased reeds are annealed to soften them and to reduce magnetic remanence. Magnetic remanence checks and hardness checks are carried out after annealing. Continue reading

 

Sputtering

Sputtering

Annealed reeds are loaded into carriers and sputtered as per required differential, load, and contact specifications. Continue reading

Reed Switch Sealing

Reed Switch Sealing

Baked out reeds and pre-cleaned glass tubes are sealed in an inert atmosphere in automatic assembly machines. The finished reed switches are then put through the electrical tests. Continue reading

 

Lead-out Plating

Lead-out Plating

Reed switch terminal ends are Tin plated for solderability. A few samples are checked for solderability and thickness measurements. Continue reading

Lead Formation

Lead Formation

Apart from the supply of full length reed switches, these are also formed to SMD, cropped, goal post bent etc. as per customers’ requirements and supplied. Samples are tested for dimensions and visual defects. Continue reading

 

Dry Buzzing

Dry Buzzing

Lead out plated reed switches are dry buzzed for stabilizing the contact. Continue reading

Sorting

Sorting

Buzzed reed switches are sorted into required sensitivity bands. Other parameters like static and variable contact resistance are also measured 100%. Sorted switches are inspected for visual defects by QA and packed and shipped. Continue reading