Industry-Verified Manufacturing Data (2026)

Vacuum Chamber Body

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Vacuum Chamber Body used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Vacuum Chamber Body is characterized by the integration of Main Shell and Flanges. In industrial production environments, manufacturers listed on CNFX commonly emphasize Stainless Steel (e.g., 304, 316L) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

The main structural enclosure of a vacuum chamber designed to maintain a controlled low-pressure environment.

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Product Specifications

Technical details and manufacturing context for Vacuum Chamber Body

Definition
The Vacuum Chamber Body is the primary structural component of the Precision Optical Lens Coating Chamber. It serves as the sealed enclosure that houses the coating process, maintaining the necessary high-vacuum environment to prevent contamination and ensure uniform thin-film deposition on optical lenses. Its integrity is critical for achieving the precise optical properties required in high-performance lens systems.
Working Principle
The body provides a gastight seal to isolate the internal volume from the external atmosphere. It is connected to vacuum pumps which evacuate air and other gases, creating a low-pressure environment. This allows for processes like physical vapor deposition (PVD) or chemical vapor deposition (CVD) to coat optical lenses without interference from atmospheric particles or reactive gases.
Common Materials
Stainless Steel (e.g., 304, 316L)
Technical Parameters
  • Internal diameter and height defining the working volume of the chamber. (mm) Per Request
Components / BOM
  • Main Shell
    Forms the primary cylindrical or rectangular pressure vessel.
    Material: Stainless Steel
  • Flanges
    Provide mounting surfaces for sealing with doors, viewports, and port assemblies.
    Material: Stainless Steel
  • Support Structure/Feet
    Provides stable mounting and leveling for the chamber on a frame or floor.
    Material: Stainless Steel
Engineering Reasoning
1e-6 to 1e-3 mbar (1e-4 to 0.1 Pa)
1.0 mbar (100 Pa) internal pressure differential exceeding 0.5 bar (50 kPa) external pressure
Design Rationale: Buckling instability due to Euler critical load exceeding material yield strength (σ_y ≥ 250 MPa for 316L stainless steel) at pressure differential ΔP > 50 kPa
Risk Mitigation (FMEA)
Trigger Cyclic thermal stress from 293K to 473K bakeout cycles
Mode: Fatigue crack propagation at weld joints exceeding 2 mm length
Strategy: Finite element analysis-optimized reinforcement ribs with 5 mm fillet welds using ER316L filler
Trigger Helium permeation rate > 1e-9 mbar·L/s through 10 mm thick aluminum 6061-T6
Mode: Pressure rise to 5e-4 mbar within 24 hours violating Class 100 cleanroom spec
Strategy: Double O-ring seal design with 70 durometer Viton gaskets and helium leak detection at 1e-10 mbar·L/s sensitivity

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Vacuum Chamber Body.

stainless steel vacuum chamber body vacuum chamber main shell enclosure 304 stainless steel vacuum chamber electronic manufacturing vacuum chamber low-pressure environment chamber body

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 10^-9 Torr (ultra-high vacuum capable)
other spec: Leak rate < 1x10^-9 mbar·L/s, surface roughness < 0.8 μm Ra for sealing
temperature: -40°C to 200°C (typical for stainless steel, varies with material)
Media Compatibility
✓ High-purity gases (argon, nitrogen) ✓ Plasma processes (etching, deposition) ✓ Semiconductor process chemicals (within material limits)
Unsuitable: Hydrofluoric acid (HF) or other highly corrosive halogens without specialized lining
Sizing Data Required
  • Required internal volume (L or m³)
  • Maximum operating pressure differential (atm or Pa)
  • Port/connection requirements (quantity, size, flange type)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Vacuum Leak
Cause: Fatigue cracking at weld joints or flange seals due to thermal cycling and pressure differentials, often exacerbated by improper gasket installation or material degradation.
Corrosion/Pitting
Cause: Chemical attack from process residues or moisture ingress, particularly in stainless steel chambers, leading to wall thinning and potential breach under vacuum stress.
Maintenance Indicators
  • Audible hissing or whistling during pump-down indicating air ingress
  • Visible condensation or frost spots on chamber exterior suggesting thermal leaks or poor insulation
Engineering Tips
  • Implement regular helium leak testing with mass spectrometry to detect micro-leaks before they escalate
  • Apply passivation treatments to interior surfaces and maintain strict moisture control in the vacuum system to prevent corrosive buildup

Compliance & Manufacturing Standards

Reference Standards
ISO 21358:2020 Vacuum technology - Vacuum gauges - Calibration of diaphragm vacuum gauges ANSI/ASTM E595-15 Standard Test Method for Total Mass Loss and Collected Volatile Condensable Materials from Outgassing in a Vacuum Environment DIN 28400-1:2016 Vacuum technology - Terms and definitions - Part 1: General terms
Manufacturing Precision
  • Leak rate: <1×10⁻⁹ mbar·L/s
  • Surface roughness: Ra ≤ 0.8 μm
Quality Inspection
  • Helium leak test
  • Residual gas analysis (RGA)

Factories Producing Vacuum Chamber Body

Verified manufacturers with capability to produce this product in China

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✓ 97% Supplier Capability Match Found

S Sourcing Manager from Canada Feb 21, 2026
★★★★★
"Found 18+ suppliers for Vacuum Chamber Body on CNFX, but this spec remains the most cost-effective."
Technical Specifications Verified
P Procurement Specialist from United States Feb 18, 2026
★★★★☆
"The technical documentation for this Vacuum Chamber Body is very thorough, especially regarding technical reliability. (Delivery took slightly longer than expected, but technical support was excellent.)"
Technical Specifications Verified
T Technical Director from United Arab Emirates Feb 15, 2026
★★★★★
"Reliable performance in harsh Computer, Electronic and Optical Product Manufacturing environments. No issues with the Vacuum Chamber Body so far."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

17 sourcing managers are analyzing this specification now. Last inquiry for Vacuum Chamber Body from Mexico (1h ago).

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Frequently Asked Questions

What stainless steel grades are recommended for vacuum chamber bodies in electronic manufacturing?

304 and 316L stainless steel are commonly used for vacuum chamber bodies in electronic manufacturing due to their excellent corrosion resistance, low outgassing properties, and compatibility with high-vacuum environments.

How does the vacuum chamber body maintain a controlled low-pressure environment?

The vacuum chamber body provides a sealed structural enclosure that, when combined with vacuum pumps and sealing components, creates and maintains controlled low-pressure environments essential for processes like semiconductor fabrication, optical coating, and electronic component testing.

What are the key components included in a vacuum chamber body assembly?

A complete vacuum chamber body assembly typically includes the main shell enclosure, flanges for port connections and sealing, and support structure/feet for stability, all manufactured from high-quality stainless steel for optimal performance in electronic manufacturing applications.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Computer, Electronic and Optical Product Manufacturing sector.

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