At Doshi & Sons, we take pride in being one of the largest manufacturers of thermocouple heads in India, with a production capacity of over 30,000 pieces per month.
Our fully in-house production setup ensures consistent quality, faster delivery, and the highest reliability in every thermocouple head we produce.

Each piece we manufacture reflects our dedication to engineering precision, superior durability, and unmatched performance — trusted by industries across India and abroad.

What is a Thermocouple Head?

A thermocouple head (also known as a connection head) is an essential protective enclosure used in temperature measurement systems.
It provides a safe and sealed housing for connecting thermocouple or RTD sensors to extension wires, ensuring the electrical connections remain secure and protected from dust, moisture, and vibration.

Common Applications:

• Steel plants and foundries
• Petrochemical and refinery industries
• Power generation and energy sectors
• Food and beverage processing
• Pharmaceuticals and laboratory equipment

Our Complete In-House Manufacturing Process

At Doshi & Sons, every stage — from raw aluminium to finished thermocouple head — is completed within our own facility.
This in-house process allows us to deliver consistent quality and rapid production without any compromise.

1. Raw Material Procurement (Aluminium)

We start with high-quality aluminium, selected for its strength, corrosion resistance, and long service life.
Only certified raw material is used to ensure consistent casting quality and finish.

2. Melting & Pressure Die Casting

The aluminium is melted and injected into precision-engineered dies using pressure die casting machines.
This process gives each thermocouple head a uniform shape, excellent dimensional accuracy, and smooth surface finish.

3. Machining & Threading

Each cast piece undergoes CNC and conventional machining to create precise threads and surface flatness.
This ensures perfect fitting of cable glands, terminal blocks, and accessories during installation.

4. Powder Coating

We then apply high-quality powder coating to every machined piece.
This provides superior protection against corrosion, dust, and harsh industrial conditions — while also enhancing its aesthetic appeal.
We also offer custom color options to meet customer-specific requirements.

5. Assembly & Fitting

Our trained technicians perform final assembly, which includes fixing the chain, screw, and terminal block.
Each thermocouple head is checked for smooth operation and accurate fit.

6. Quality Control & Packing

Every unit undergoes stringent quality checks for dimensional accuracy, coating quality, and mechanical strength.
After inspection, the thermocouple heads are carefully packed to ensure they reach customers in perfect condition.

Why Choose “Doshi & Sons” Thermocouple Heads?

✅ Over 30,000 pieces manufactured every month
✅ One of India’s largest thermocouple head manufacturers
✅ 100% in-house production – from raw aluminium to finished product
✅ Superior surface finish and corrosion resistance
✅ Fast delivery with consistent quality
✅ Customizable coating and fitting options

Applications in Real-World Industries

Our thermocouple heads are widely used for temperature sensing, measurement, and control applications across various industries.
They ensure safe and reliable housing for electrical connections — even in high-temperature and challenging environments.

Conclusion

At Doshi & Sons, we don’t just manufacture thermocouple heads — we build trust, precision, and performance into every piece.
With our complete in-house production line and a capacity of 30,000 pieces per month, we proudly stand among the leading manufacturers in India.

Whether you need standard designs or customized solutions, Doshi & Sons is your one-stop source for high-quality thermocouple heads.