Editorial Technical Reference

Vacuum Chuck

This page explains how Vacuum Chuck is classified within Machinery and Equipment Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A component of a heated stage that uses vacuum pressure to securely hold workpieces in place during manufacturing processes.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Vacuum Chuck

Definition
The vacuum chuck is a critical component of heated stage (chuck) systems used in precision manufacturing. It creates a vacuum seal against the workpiece surface, providing secure, non-marring clamping without mechanical fixtures. This allows for uniform heating and processing of materials while maintaining precise positioning and preventing movement during operations such as semiconductor fabrication, optical component manufacturing, and precision machining. The chuck is typically made from materials like aluminum alloy, stainless steel, or ceramic, chosen for their thermal and mechanical properties. Key parameters include holding force (0.5–2.5 kN), vacuum level (-80 to -60 kPa relative to atmospheric pressure), operating pressure (0.4–0.8 MPa), temperature range (-20 to 80 °C), leak rate (≤0.1 Pa·m³/s), surface flatness (±0.02 mm), surface roughness (Ra 0.8–1.6 µm), and weight (5–20 kg). Dimensions range from 200×200 mm to 600×600 mm, with custom sizes available. The chuck may have an IP rating of IP54–IP65 for dust and water resistance. Material specifications, such as Aluminum 6061-T6 per ASTM B221, are provided as reference. Always verify model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
The vacuum chuck operates by creating a pressure differential between its surface and the ambient environment. When connected to a vacuum source, air is evacuated from channels or porous material in the chuck body, creating suction that holds the workpiece against the chuck surface. This provides secure clamping without physical contact points that could interfere with heating uniformity or cause damage to delicate materials.
Common Materials
Aluminum alloy, Stainless steel, Ceramic
Technical Parameters
ParameterTypical rangeNotes & selection driver
Holding Force0.5–2.5 kNDepends on vacuum level and surface area
Vacuum Level-80–-60 kPaRelative to atmospheric pressure
Operating Pressure0.4–0.8 MPaSupply pressure for vacuum generator
Temperature Range-20–80 °CContinuous operation
Leak Rate≤0.1 Pa·m³/sAt rated vacuum
Surface Flatness±0.02 mmOver entire chuck surface
Surface RoughnessRa 0.8–1.6 µmFor sealing and workpiece contact
MaterialAluminum 6061-T6Corrosion resistant, lightweightASTM B221
Weight5–20 kgDepends on size
Dimensions200×200–600×600 mmCustom sizes available
IP RatingIP54–IP65Dust and water resistanceIEC 60529

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Vacuum Channels Part
    Distribute vacuum pressure evenly across the chuck surface
    Material: Same as chuck body material
  • Sealing Surface Part
    Provides airtight contact with the workpiece
    Material: Rubber or polymer gasket material
  • Vacuum Port Part
    Connection point for vacuum hose or tubing
    Material: Stainless steel or brass fitting
  • Porous Material Optional
    Porous body form through which the vacuum is drawn instead of machined channels.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Vacuum Chuck.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Up to -0.9 bar vacuum (typical), 1-2 bar positive pressure for purge/cleaning
flow rate: 0.5-5 L/min (vacuum pump capacity dependent)
temperature: -20°C to 200°C (operating range, dependent on seal material)
slurry concentration: Not applicable - vacuum chucks typically avoid slurry contact; use with dry or low-particulate media only
Media Compatibility
✓ Silicon wafers ✓ Glass substrates ✓ Printed circuit boards
Unsuitable: High-viscosity fluids or abrasive slurries (risk of clogging vacuum channels)
Sizing Data Required
  • Workpiece dimensions and weight
  • Required holding force (based on process forces)
  • Vacuum pump capacity and response time

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Seal degradation
Cause: Chemical attack from coolants or cleaning agents, thermal cycling, or mechanical wear from particulate contamination, leading to vacuum leaks and loss of holding force.
Clogging of vacuum ports or channels
Cause: Accumulation of machining debris, coolant residue, or fine particulate matter, restricting airflow and reducing vacuum efficiency.
Maintenance Indicators
  • Audible hissing or whistling from the chuck body during operation, indicating a vacuum leak.
  • Visible coolant or debris accumulation around vacuum ports, or inconsistent part holding (slippage or misalignment).
Engineering Tips
  • Implement regular, gentle cleaning of vacuum ports and seals using compatible, non-aggressive solvents, followed by inspection for wear or damage.
  • Use fine filtration (e.g., 5-micron or finer) in the vacuum line to prevent particulate ingress, and ensure workpieces are free of excessive debris before clamping.

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
ANSI B46.1 - Surface texture (surface roughness, waviness, and lay) DIN 8601 - Vacuum technology; vacuum flanges

Quoted from the published standard.

Manufacturing Precision
  • Flatness: 0.05 mm/m
  • Surface roughness: Ra ≤ 0.8 μm
Quality Inspection
  • Vacuum leak test (helium mass spectrometry)
  • Surface flatness verification (laser interferometry)

Manufacturers of Vacuum Chuck

1 company lists this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Semicorex Advanced Material Technology Co.,Ltd
Ningbo, Zhejiang, CN
Also makes: Mechanical Seal, End-Effector, Wafer Chuck and 2 more
Managed by the manufacturer
Listed on the company's own website

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

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Frequently Asked Questions

What is the holding force range of this vacuum chuck?

The holding force is typically 0.5–2.5 kN, depending on the vacuum level and surface area. Confirm the exact value for your specific model with the manufacturer.

What materials are available for the vacuum chuck?

Available materials include aluminum alloy, stainless steel, and ceramic. The specific grade, such as Aluminum 6061-T6, is listed as a reference and should be verified.

What is the operating temperature range?

The chuck is designed for continuous operation in a temperature range of -20 to 80 °C. Ensure your process stays within this range.

How do I verify the surface flatness and roughness?

Surface flatness is ±0.02 mm over the entire chuck surface, and surface roughness is Ra 0.8–1.6 µm. These values should be confirmed with the manufacturer for your specific unit.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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