Editorial Technical Reference

Precision Fixture

This page explains how Precision Fixture is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A specialized holding device for accurate positioning and secure clamping of components during RF shield assembly.

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Precision Fixture in a manufacturing environment
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Product Specifications

Technical details and manufacturing context for Precision Fixture

Definition
A precision fixture is a critical component of the RF Shield Assembly Station that provides exact positioning, alignment, and secure clamping of RF shielding components during assembly operations. It ensures repeatable accuracy for consistent shield placement, proper contact between shield elements, and reliable electrical connections while preventing damage to delicate shielding materials. The fixture is typically constructed from aluminum alloy 6061-T6 with hard anodized surface treatment, or stainless steel, offering a surface hardness of HRC 45–50. It operates within a temperature range of 0–60°C and is rated IP54 for dust and splash resistance. Key parameters include a clamping force adjustable from 500 to 2000 N via a pressure regulator, positioning accuracy of ±0.02 mm with repeatability of ±0.01 mm (per ISO 230-2), operating pressure of 0.4–0.6 MPa (below 0.4 MPa clamping force is insufficient), and a clamping stroke of 10–25 mm adjustable per component size. The fixture weighs between 5 and 12 kg depending on size and material. Electrical resistance exceeds 100 MΩ at 500 V DC (per IEC 60243-1). These specifications serve as reference ranges; actual values must be confirmed with the manufacturer for specific models and applications. The fixture is designed for use in computer, electronic, and optical product manufacturing, specifically for RF shield assembly processes.
Working Principle
The fixture uses precisely machined locating surfaces and adjustable clamping mechanisms to hold RF shield components in their exact required positions. It incorporates alignment pins, datum surfaces, and controlled clamping force to maintain component orientation during assembly operations such as soldering, welding, or mechanical fastening of RF shields to electronic assemblies. The clamping force is adjustable via a pressure regulator, and the operating pressure range is 0.4–0.6 MPa. The fixture's positioning accuracy and repeatability are verified per ISO 230-2, ensuring consistent performance across cycles. The design prevents damage to delicate shielding materials while ensuring proper contact and reliable electrical connections.
Common Materials
Aluminum alloy, Stainless steel
Technical Parameters
ParameterTypical rangeNotes & selection driver
Clamping Force500–2000 NAdjustable via pressure regulator
Positioning Accuracy±0.02 mmRepeatability within ±0.01 mmISO 230-2
Operating Pressure0.4–0.6 MPaBelow 0.4 MPa clamping force insufficient
Operating Temperature0–60 °CSeals degrade above 60°C
Repeatability±0.01 mmConsistent across cyclesISO 230-2
Clamping Stroke10–25 mmAdjustable per component size
Weight5–12 kgDepends on size and material
Material Grade6061-T6Aluminum alloy, hard anodizedASTM B211
Surface HardnessHRC 45–50Anodized surface for wear resistanceASTM E18
Electrical Resistance>100 MΩAt 500 V DCIEC 60243-1
IP RatingIP54Dust and splash proofIEC 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
  • Base Plate Part
    Primary structural foundation providing mounting points and datum surfaces
    Material: Aluminum alloy
  • Locating Pins Part
    Precision-ground pins for exact component positioning and alignment
    Material: Stainless steel
  • Clamping Mechanism
    Adjustable system for securing components with controlled force
    Material: Stainless steel
  • Mounting Brackets Part
    Attachment points for securing fixture to assembly station
    Material: Steel
  • Pressure Regulator
    Sets the clamping force; the 0.4-0.6 MPa working range is set here.

Application & selection

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 50 psi clamping pressure
other spec: Positioning accuracy: ±0.005 inches, Vibration tolerance: <5g RMS
temperature: -20°C to 150°C
Media Compatibility
✓ Aluminum RF shields ✓ Copper shielding components ✓ Stainless steel EMI enclosures
Unsuitable: Corrosive chemical bath environments
Sizing Data Required
  • Component maximum dimensions (LxWxH)
  • Required clamping force for secure hold
  • RF shield assembly process cycle time

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Fixture Drift
Cause: Thermal expansion/contraction cycles causing dimensional instability, often from repeated heating during machining operations or ambient temperature fluctuations.
Clamping Force Degradation
Cause: Wear in clamping mechanisms (threads, wedges, or hydraulic seals) leading to insufficient holding force, typically from cyclic loading and particulate contamination.
Maintenance Indicators
  • Visible workpiece slippage or misalignment during operation
  • Unusual audible creaking or grinding from clamping components
Engineering Tips
  • Implement regular torque calibration and thermal compensation protocols to maintain clamping accuracy
  • Establish preventive cleaning and lubrication schedules for all moving parts, using manufacturer-specified lubricants

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 B5.54 - Machine Tool Components DIN 6325 - Parallel Keys and Keyways

Quoted from the published standard.

Manufacturing Precision
  • Bore: +/-0.01mm
  • Flatness: 0.05mm
Quality Inspection
  • Coordinate Measuring Machine (CMM) Verification
  • Surface Roughness Analysis
Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
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Inspection readiness
Confirm test methods, calibrated equipment, sampling plans, and traceable reports.
Supplier transparency
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Manufacturers of Precision Fixture

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

Hongkong Winhoo Precision Co., Ltd.
Shenzhen, Guangdong, CN
Also makes: Precision Machined Components, Automotive Components, Spindle Motor and 2 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “Precision Fixtures”
View source page ↗ cncprecision-parts.com · recorded 2026-09-09
View profile Send enquiry
Wuxi Kaihan Technology Co., Ltd.
Wuxi, Jiangsu, CN
Also makes: Medical Device Components, Precision Machined Components, Automotive Components and 3 more
Listed on the company's own website · profile compiled by CNFX from public sources
Listed there as: “CNC Precision Fixture”
View source page ↗ kaihancnc.com · recorded 2026-09-17
View profile Send enquiry

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Frequently Asked Questions

What materials are used for the precision fixture?

The fixture is typically made from aluminum alloy 6061-T6 with hard anodized surface treatment, or stainless steel. The material grade and surface hardness (HRC 45–50) are reference values; confirm with the manufacturer for specific models.

What is the clamping force range?

The clamping force is adjustable from 500 to 2000 N via a pressure regulator. The operating pressure range is 0.4–0.6 MPa; below 0.4 MPa, clamping force is insufficient. Verify actual values for your application.

What is the positioning accuracy and repeatability?

Positioning accuracy is ±0.02 mm with repeatability of ±0.01 mm, tested per ISO 230-2. These are reference values; confirm with the manufacturer for the specific model.

What is the operating temperature range?

The fixture operates in a temperature range of 0–60°C. Seals may degrade above 60°C. Always verify with the manufacturer for your environment.

Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Related equipment

Applied To / Applications

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

RF Shield Assembly Station
View system integration details
Module Housing Assembly Station
View system integration details

Industrial Ecosystem & Supply Chain Structure

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.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 13 October 2026

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