Amarex is an instrumentation parts manufacturer and exporter from India, producing precision CNC-machined components for measurement and control devices.
We machine sensor housings, connectors, thermowell fittings, probes, stems and calibration fittings to tight tolerances in stainless steel, brass and aluminium – delivering accuracy, repeatability and traceability for global OEMs.
Instrumentation Parts
Precision Instrumentation Components We CNC Machine
We CNC machine a wide range of instrumentation parts and fittings for control, testing and monitoring equipment.
Every component is turned and milled to exact tolerances for reliable fit, sealing and repeatable performance. The table below lists the components we produce and where each is used.
| Component | Description | Typical applications |
|---|---|---|
| Sensor housings | Machined enclosures protecting sensing elements | Pressure / temperature sensors |
| Thermowell fittings | Protective fittings for temperature probes | Process temperature measurement |
| Probes & stems | Slim, tight-tolerance turned components | Measurement and control devices |
| Calibration fittings | Precision fittings for test and calibration | Testing instruments, calibration rigs |
| Connectors & adapters | Threaded and sealing connectors | Instrument-to-process connections |
| Pressure switch parts | Sensors, assemblies, actuators, buttons | Pressure switch assemblies |
| Protective shields & end caps | Machined protective and closure parts | Field instruments and assemblies |
Materials & Grades We Machine
We select the material to match the instrument’s environment – corrosion resistance, strength or light weight. Stainless steel is the workhorse for instrumentation; brass and aluminium are used where machinability or weight matter.
How We Manufacture Instrumentation Components
Instrumentation parts are small, slender and unforgiving: a sensor housing that is a few microns out will not seal, and a thermowell that chatters during turning will not pass inspection.
These parts are CNC turned and milled directly from bar in brass, stainless steel and special alloys, with tooling and speeds set for the material rather than the shop average.
Critical diameters and sealing faces are held to +/-0.01 mm (10 microns), verified on calibrated instruments including air pressure gauges and optical measuring equipment.
Grade selection
Brass, stainless 303/304/316L, or Monel and Inconel for aggressive media.
CNC turning and milling
Slim, high-aspect features machined in controlled passes to avoid deflection.
Thread and sealing detail
Cut and gauged for instrument-to-process connections.
Finishing
Deburring, passivation and any specified surface treatment, which is in our scope.
Non-contact and contact metrology
Optical and pneumatic gauging on features too fine to touch.
Final inspection
Calibrated dimensional check and material verification before dispatch.
Instrumentation Part Manufacturing Process
Instrumentation parts are slim, deep and easy to deflect.
We machine them in controlled passes and measure them optically and pneumatically, because the features that matter are often too fine to touch with a probe.
Brass, stainless 303/304/316L, Monel or Inconel selected for the media
Slim, high-aspect features CNC machined in controlled passes to avoid deflection
Instrument-to-process threads and sealing faces cut and gauged
Optical and pneumatic metrology on features too fine to touch
Why Choose Amarex for Precision Instrumentation Parts
Instrument makers carry the cost of a bad component twice: once in the reject, and again in the calibration time lost proving the fault was not in the electronics.
The value of a machining partner here is repeatability across a batch, and inspection evidence that closes the argument before the part reaches your bench.
Tight, repeatable tolerances
+/-0.01 mm (10 microns) held across the batch, not just the first article.
Non-contact metrology
Optical and pneumatic gauging verifies fine features without deforming them.
Material range in one supplier
Brass, stainless steel and special alloys including Monel and Inconel.
Clean sealing and thread
Clean sealing and thread detail for instrument-to-process connections.
Full documentation
Material test certificates and dimensional inspection reports with every batch.
Independent proof
Third-party test reports from Government-approved NABL laboratories on request.
Industries We Supply Instrumentation Parts To
Pressure & temperature measurement
CNC machined sensor housings and thermowell fittings
Control systems & field instruments
CNC machined probes, stems and pressure switch parts
Testing, calibration & laboratory
CNC machined calibration fittings and adapters
Process monitoring & analytical
CNC machined connectors and protective shields
Marine, energy & industrial automation
End caps and custom machined instrument parts
Precision CNC Machining Capabilities
- Processes
CNC turning, milling, threading, drilling, finishing
- Specialism
Small, complex, tight-tolerance precision parts
- Materials
Stainless steel 303/304/316, brass, aluminium alloys
- Custom work
Made to customer 2D/3D drawings and samples
- Quality
ISO-certified systems, calibrated inspection, traceability
- Order type
Prototype to production; OEM / custom; export worldwide
Quality Assurance
As an ISO 9001:2015 certified and modern CNC machine shop in India, we uphold global benchmarks while delivering cost-effective precision machining solutions. With RoHS & REACH compliance, we are a trusted machining partner for OEMs worldwide.
Why Amarex for Precision CNC Machined Parts
Amarex is an Indian manufacturer and exporter of precision CNC-machined components, with plants in Mumbai and Jamnagar.
Our engineering team specialises in small, complex, tight-tolerance parts, backed by ISO-certified controls, calibrated inspection and material traceability from prototype through to production volumes.
- Specialists in small, complex, tight-tolerance precision parts
- Stainless steel, brass, aluminium & special alloys under one roof
- ISO 9001:2015 certified quality management, calibrated inspection, full traceability
- Prototype-to-production support and worldwide export
Meet the Expert Behind Instrumentation Parts
Aryan Jain CEO
Frequently Asked Questions
We CNC machine sensor housings, thermowell fittings, probes, stems, calibration fittings, connectors, pressure switch parts, protective shields and end caps – all to customer drawings.
Primarily stainless steel grades 303, 304 and 316 for corrosion resistance and strength, plus brass for machinability and aluminium alloys where light weight matters.
Yes. Stainless steel 303, 304 and 316 are our core instrumentation materials, CNC turned and milled to tight tolerances for housings, thermowells, fittings and probes.
Yes. We machine brass instrumentation parts such as connectors and fittings where excellent machinability and good corrosion resistance are needed.
Yes. We work to your 2D/3D drawings and samples, holding tight tolerances with in-process and final dimensional inspection.
Yes. We provide material test certificates and dimensional inspection reports, with full material traceability on every batch.
Yes. We support customers from prototype through to production quantities, and export to OEMs worldwide.
Get a quote for your instrumentation parts
Send us your drawings or specifications and our engineering team will respond with materials, tolerances and pricing.