Structured Manufacturing Data (2026)

Collimator Jaws

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Collimator Jaws used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Collimator Jaws is characterized by the integration of Jaw Blade and Drive Mechanism. In industrial production environments, manufacturers listed on CNFX commonly emphasize Tungsten alloy construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Movable metal blocks in a collimator system that shape and define the radiation field.

Product Specifications

Technical details and manufacturing context for Collimator Jaws

Definition
Collimator jaws are precision-engineered, adjustable metal components within a collimator system, typically used in radiation therapy and imaging equipment. They function as movable barriers or shutters that physically limit and shape the beam of radiation (such as X-rays or particle beams) by moving independently along orthogonal axes to create rectangular or irregular field apertures. Their primary role is to precisely control the size, shape, and direction of the radiation field to match the treatment or imaging target while minimizing exposure to surrounding healthy tissues.
Working Principle
Collimator jaws operate by mechanical or motor-driven translation along guide rails or tracks. They are positioned symmetrically in pairs (typically two pairs for X and Y axes) relative to the beam central axis. A control system moves each jaw pair independently based on input parameters (field size, shape). The jaws absorb or block radiation outside the desired aperture, with their inner surfaces often tapered or shaped to minimize penumbra (the fuzzy edge of the radiation field). In multi-leaf collimators (MLCs), individual leaves function similarly but allow more complex shapes.
Common Materials
Tungsten alloy, Lead, Steel with radiation-absorbing lining
Technical Parameters
  • Maximum field size definable by the jaws (e.g., 400mm x 400mm at isocenter) (mm) Per Request
Components / BOM
  • Jaw Blade Part
    Primary radiation-absorbing block that defines one edge of the field
    Material: Tungsten alloy or lead composite
  • Drive Mechanism
    Motor, gears, or actuators that move the jaw along its track
    Material: Steel, aluminum, precision bearings
  • Position Sensor
    Encoders or potentiometers that provide feedback on jaw position
    Material: Electronic components, plastic housing
  • Mounting Bracket Part
    Structural frame that holds the jaw assembly within the collimator head
    Material: Aluminum or steel alloy

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Collimator Jaws.

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: Atmospheric to 1.5 bar absolute
other spec: Radiation field size: 0.5x0.5 cm to 40x40 cm, Positioning accuracy: ±0.5 mm, Reproducibility: ±0.2 mm
temperature: 0°C to 50°C (operating), -20°C to 70°C (storage)
Media Compatibility
✓ Medical X-ray beams ✓ Linear accelerator photon beams ✓ Electron therapy beams
Unsuitable: High-neutron flux environments (e.g., reactor cores, proton therapy with significant neutron production)
Sizing Data Required
  • Maximum radiation field size required (cm x cm)
  • Required positioning accuracy and reproducibility (mm)
  • Radiation beam energy range (keV to MeV)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Mechanical wear and misalignment
Cause: Repeated friction from jaw movement against guide rails, leading to material degradation and positional inaccuracies over time.
Electrical/control system failure
Cause: Degradation of motor drives, encoders, or feedback sensors due to environmental factors (dust, moisture) or power fluctuations, causing erratic jaw positioning.
Maintenance Indicators
  • Audible grinding or scraping noises during jaw movement
  • Visible misalignment or asymmetry in the radiation field shape during calibration checks
Engineering Tips
  • Implement regular preventive maintenance including lubrication of guide rails and verification of alignment using laser or optical tools
  • Install environmental controls (dust seals, humidity regulation) and use surge protectors to protect electrical components from contamination and power issues

Compliance & Manufacturing Standards

Reference Standards
ISO 1101:2017 (Geometrical product specifications) ANSI N43.2-2001 (Radiation Safety for X-ray Diffraction and Fluorescence Analysis Equipment) DIN 54115-1:2016 (Non-destructive testing - Radiation protection rules for technical applications)
Manufacturing Precision
  • Jaw parallelism: ±0.05 mm
  • Surface flatness: 0.1 mm per 100 mm
Quality Inspection
  • Dimensional verification with coordinate measuring machine (CMM)
  • Radiation leakage test per IEC 60601-2-1

Factories Producing Collimator Jaws

Manufacturer profiles with relevant production capability in China

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

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What materials are collimator jaws typically made from for optimal radiation absorption?

Collimator jaws are commonly manufactured from high-density materials like tungsten alloy, lead, or steel with specialized radiation-absorbing linings to effectively shape and define radiation fields while minimizing scatter.

How do collimator jaw drive mechanisms ensure precise radiation field shaping?

Collimator jaw drive mechanisms use precision motors and position sensors to accurately move tungsten or lead jaw blades, allowing for exact control over radiation field size and shape in medical and industrial applications.

What maintenance is required for collimator jaw systems in radiation equipment?

Regular inspection of jaw blade alignment, drive mechanism lubrication, and position sensor calibration is essential. Tungsten alloy jaws may require periodic cleaning to maintain radiation absorption efficiency and mechanical precision.

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 Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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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