What tolerances can Sunmy Hardware hold on CNC machined parts?

Critical CNC-milled and turned features can be held to ±0.005 mm, with ±0.01 mm achievable as a standard on precision features. Final achievable tolerance depends on material, feature size and geometry, and is confirmed during the engineering (DFM) review before production.

Which manufacturing processes are performed in-house?

CNC machining and metal stamping are performed in Sunmy-owned facilities. Casting and surface finishing are produced by audited partner plants. All final quality control, CMM dimensional inspection and First Article Inspection reports are executed in-house by Sunmy engineers before shipment.

How is my CAD data and intellectual property protected?

Sunmy signs a Non-Disclosure Agreement with your team by email before any 3D or CAD files are collected, and you communicate directly with the factory, so drawings are not handed off through trading intermediaries.

What quality documents are supplied with shipments?

Material certificates, First Article Inspection (FAI) reports and CMM dimensional reports are available, together with RoHS compliance documentation where required.

Do you support prototypes and low-volume production?

Yes. Sunmy supports rapid prototyping and low-volume manufacturing through CNC machining, 3D printing and urethane casting, then scales the same part into die casting, stamping or injection molding for volume production.

How fast do your engineers respond to a new project?

Engineers respond to drawings and project requirements within 24 hours, including initial manufacturability feedback.

Custom Stainless Steel Waterproof Temperature Sensor Probe Housing Thermowell OEM Manufacturer Wholesale Supplier Factory

Product Overview

Shenzhen Sunmy Hardware Co., Ltd. presents our high-performance Stainless Steel Sensor Probe Housing, specifically engineered for temperature sensing, soil moisture detection, and fluid monitoring systems.

Designed with a robust, pointed tip structure, these housings are ideal for applications requiring direct insertion into soil, viscous liquids, or pressurized water pipes. As a specialized manufacturer of Precision Turned Parts, Sunmy offers full OEM/ODM support, allowing us to customize the length, diameter, wall thickness, and flange design to perfectly match your sensor modules (DS18B20, PT100, etc.).

We provide a durable shield for your sensitive electronics against moisture, corrosion, and physical impact.

Manufacturing Process & Insights

Our probe housings are manufactured using advanced CNC Precision Turning (Computer Numerical Control) technology. Unlike standard stamping or tube drawing, our turning process ensures superior structural integrity and dimensional accuracy.

Precision CNC Turning

The pointed tip is machined directly from solid bar or thick-walled tube stock, ensuring a seamless, leak-proof transition that is significantly stronger than welded alternatives.

Surface Treatment

We apply a high-grade polishing process to reduce surface roughness. This minimizes soil adhesion or fluid drag and ensures the probe is easy to clean and sterilize (vital for food/beverage or medical applications).

Sealing Interface

The open end features a precision-machined flange or rolled rim, designed to accommodate O-rings or epoxy potting, ensuring a high waterproof rating customizable up to IP68 standards.

Key Specifications

Based on standard optical and industrial instrument requirements, our probe housings conform to the following engineering specifications:

Parameter	Details
Product Name	Stainless Steel Water Pipe/Soil Sensor Probe Housing
Material	Stainless Steel 304, 316, or 316L (Medical/Food Grade available)
Manufacturing Process	Precision CNC Turning / Lathe Machining
Tip Design	Pointed (Conical) for easy insertion; Flat or Round bottom available
End Cap Style	Flanged, Threaded, or Plain (Customizable for potting/capping)
Diameter (OD/ID)	Fully Customized (e.g., OD 3mm - 20mm)
Length	Customized (Standard: 30mm - 500mm+)
Tolerance	Up to ±0.01mm
Waterproof Rating	Design supports up to IP68 (dependent on sealant/cap used)
Origin	Guangdong, China (Shenzhen Sunmy Hardware Co., Ltd.)

Key Features & Advantages

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Superior Thermal Conductivity: The precision-machined thin-wall design ensures rapid thermal response, transferring temperature changes from the medium to the internal sensor quickly.

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Excellent Corrosion Resistance: High-quality Stainless Steel 304/316 construction provides longevity in harsh environments, including saltwater, acidic soil, and industrial chemical tanks.

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High Penetration Capability: The tapered, pointed tip design allows for easy installation into compact soil or semi-solid materials without bending the tube.

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OEM Customization Power:

Custom logo laser engraving.
Specific thread types (NPT, BSP, Metric) can be machined at the mounting end.
Adjustable wall thickness for high-pressure environments.

Other Products

Custom Titanium Ultrasonic Booster

Custom CNC Turned Tooling Sleeves & Threaded Retaining Plugs

Custom CNC Turned Tooling Sleeves & Retaining Plugs

Custom Hollow-Shaft Cycloidal Reducer

Custom 6-Axis Force/Torque Sensor Housings

Technical FAQ

Q1 What is the Minimum Order Quantity (MOQ) for a custom probe size?

At Sunmy, we support our clients' development phases. For custom dimensions, we can start with a low MOQ for prototyping (e.g., 50-100 units) before moving to mass production.

Q2 Can you ensure the housing is waterproof?

The metal housing itself is seamless at the tip due to the CNC turning process, making it 100% leak-proof. The final waterproof rating depends on how you seal the open end (epoxy potting or end-cap). We can design the flange specifically to hold your preferred sealing method securely.

Q3 Do you provide material certification?

Yes. We are a transparent manufacturer. We provide material certificates (RoHS, REACH, Mill Certs) for our Stainless Steel 304/316 materials upon request to ensure full compliance with your local industrial regulations.

Q4 I need a specific shape for the tip (e.g., needle-sharp vs. rounded). Can you do it?

Absolutely. Since we use CNC Lathes, we can program any tip geometry you require—whether it’s a sharp needle for piercing compact soil or a rounded bullet tip for safety in fluid pipes.

Q5 Can you machine mounting threads directly onto the probe housing?

Yes. As a precision turned parts manufacturer, we can integrate standard or customized threads (including NPT, BSP, and Metric) directly at the mounting collar for seamless pipe installation and high-pressure sealing.

Q6 What surface finishes are offered to prevent media adhesion?

We offer mirror polishing, electro-polishing, and ultrasonic cleaning. These processes lower surface roughness, minimizing soil adhesion or fluid drag and allowing thorough sterilization for food, beverage, or medical applications.

Get a Fast, Technical Quote & Free DFM Review

Don't let tolerance stack-up delay your product launch. Submit your project details, and our engineering team will evaluate your design for manufacturability before the first cut.

OEM Custom Stainless Steel Waterproof Sensor Probe Housing / Thermowell (OEM Support) Manufacturer, Suppliers

Product Description

Product Overview