Product: CNC Machining Temperature Sensor Boss (Steel Pipe Base, Slot-Type Assembly)
H1: Precision CNC Machined Temperature Sensor Boss – 3-Slot Design for Quick-Connect Assembly
1. Core Features at a Glance
- Material Integrity: Crafted from high-grade seamless steel pipe ( 304/316SS), ensuring structural strength and pressure resistance.
- Precision Slot Machining: Three precisely cut internal/external slots machined on 4-axis CNC centers for consistent engagement depth and smooth assembly.
- Interchangeability Guaranteed: Slot dimensions held to ±0.05 mm, ensuring every boss accepts the mating component with consistent "push-and-lock" feel.
- Surface Finish: All contact surfaces achieve Ra 1.6 μm for smooth insertion without galling.
- Custom Configurations: Slot positions, widths, and depths can be tailored to match your specific quick-connect coupling system.
- 100% Inspected: Every piece undergoes slot gauge verification and dimensional check – CMM reports available upon request.
2. Process Advantage: From Raw Tube to Precision Slot Profile
This isn't a standard pipe fitting with simple cut-off ends. This Temperature Sensor Boss starts as a selected length of seamless steel pipe – but the critical feature is the 3-slot locking mechanism. Here's how we get it right:
Stable Fixturing First: Raw pipe stock is clamped in custom soft jaws that grip the OD without distortion. The first operation faces the end and machines the pilot diameter – establishing a true datum for all following operations.
Slotting with Synchronization: Instead of milling slots one at a time (which can lead to index errors), we machine all three slots in a single programmed operation on our CNC machining centers. Using a precision fourth axis, the part rotates exactly 120° between slots, ensuring perfect angular spacing every time.
Bottom Radius Control: The slot corners are machined with specially selected end mills to achieve the specified root radius – no sharp corners that could become stress risers under pressure.
Deburred by Design: After slotting, we use a combination of mechanical brushing and manual inspection to ensure every slot edge is smooth. No burrs means no scratched seals during your assembly.
3. Quality Assurance – Consistency You Can Rely On
When your assembly line relies on a "push-and-click" fit, even 0.1 mm variation can mean the difference between smooth installation and rejected parts.
Our process is built for repeatability.
In-Process Gauging: During production, we use custom slot go/no-go gauges to verify every part.
The mating component should slide in with light hand pressure and lock securely – no hammering required.
Material Traceability: All raw steel pipe is sourced from reputable mills. Mill test reports (MTRs) are available with every order.
Cleanliness Matters: After machining and deburring, each boss is washed and blown clean. No chips hidden inside the bore to contaminate your sensor or fluid path.
4. Technical Specifications & Applications
Parameter Details:
| Parameter | Details |
| Base Material | Stainless Steel (304/316) |
| Process | CNC Turning + 4-Axis Milling from Seamless Pipe |
| Slot Configuration | 3-position bayonet-style (custom profile available) |
| Slot Tolerance | Width ±0.05 mm / Depth ±0.1 mm / Angular Spacing ±0.5° |
| Surface Finish | Mating surfaces ≤ Ra 1.6 μm |
| Assembly Type | Push-and-turn / Axial slide with locking |
Typical Applications:
- Quick-disconnect temperature sensor mounts
- Hydraulic quick couplings
- Instrumentation ports requiring tool-free replacement
- Modular fluid handling systems
Why This Design Works Better
Because we machine the slots from the same datum as the bore and outer diameter, you get perfect concentricity – the mating component aligns straight every time. And by cutting all three slots in a single setup, we eliminate the indexing errors that plague parts made on manual machines or with heads.
This isn't just a piece of pipe with some milled slots. It's a precision component designed to make your final assembly faster, more reliable, and free from leaks or alignment headaches.
Send us your mating part or slot drawing – we'll provide a CMM-first-article report with your sample order.
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