Editorial Technical Reference

Blast Chamber

This page explains how Blast Chamber 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

The enclosed workspace of a shot blasting machine where abrasive media impacts the workpiece surface.

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Product Specifications

Technical details and manufacturing context for Blast Chamber

Definition
The blast chamber is the core containment structure of a shot blasting machine, designed to safely enclose the high-velocity abrasive blasting process. It houses the workpiece during treatment, contains the abrasive media, and protects the external environment from flying debris and dust. Its construction is critical for operator safety, process efficiency, and media recovery. The chamber is typically fabricated from abrasion-resistant steel plate (e.g., AR400, Mn steel) and lined with wear-resistant liner plates or rubber linings to withstand the erosive action of the abrasive. Key parameters include chamber volume (2–50 m³), maximum workpiece weight (500–5000 kg), blast wheel power (7.5–45 kW), abrasive flow rate (100–600 kg/min), wall thickness (6–12 mm), operating temperature (-10 to 50 °C), dust concentration (≤10 mg/m³ per GB 16297), noise level (≤85 dB(A) per ISO 11201), electrical supply (380 V AC ±10%, 50 Hz per IEC 60038), degree of protection (IP54–IP55 per IEC 60529), chamber dimensions (2000×2000×2500 to 6000×4000×4000 mm), and weight (3000–20000 kg). These values are reference ranges and must be verified for the specific model and application. The chamber's design must accommodate the workpiece size and weight, provide adequate blast wheel power for the desired cleaning rate, and ensure proper media recovery and dust containment. Operators should verify that the chamber's specifications meet their process requirements and that all relevant standards are confirmed with the manufacturer or supplier.
Working Principle
The chamber provides a sealed environment where compressed air or a centrifugal wheel propels abrasive shot (e.g., steel grit, glass beads) against the surface of a workpiece. The chamber's walls and lining absorb impact energy, contain the media, and facilitate its collection for separation and recirculation via the machine's recovery system. The abrasive is directed at the workpiece, removing scale, rust, or other contaminants. The chamber's design ensures that the abrasive is contained and that dust and debris are extracted for filtration. The process is continuous, with the abrasive being recycled after cleaning and separation.
Common Materials
Abrasion-resistant steel plate (e.g., AR400, Mn steel), Wear-resistant liner plates or rubber linings
Technical Parameters
ParameterTypical rangeNotes & selection driver
Chamber Volume2–50 m³Determines workpiece size capacity
Max Workpiece Weight500–5000 kgStructural load limit of the chamber
Blast Wheel Power7.5–45 kWAffects abrasive velocity and coverage
Abrasive Flow Rate100–600 kg/minHigher flow increases cleaning rate
Chamber Wall Thickness6–12 mmSteel plate thickness for wear resistance
Operating Temperature-10–50 °COutside range may affect seals and electronics
Dust Concentration≤10 mg/m³Compliance with emission standardsGB 16297
Noise Level≤85 dB(A)At operator position, may require hearing protectionISO 11201
Electrical Supply380 ±10% V ACThree-phase, 50 HzIEC 60038
Degree of ProtectionIP54–IP55Dust-tight and water-resistantIEC 60529
Chamber Dimensions (L×W×H)2000×2000×2500–6000×4000×4000 mmCustomizable to workpiece size
Weight3000–20000 kgAffects foundation and installation requirements

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
  • Chamber Shell / Body Part
    Primary structural frame providing containment and support for internal components.
    Material: Structural steel
  • Wear Liner / Lining Part
    Replaceable protective layer on interior walls and floor to absorb abrasive impact and extend chamber life.
    Material: Abrasion-resistant steel plate or rubber
  • Access Door
    Sealed door for loading and unloading workpieces; often includes safety interlocks.
    Material: Steel with viewing window (polycarbonate)
  • Abrasive Inlet Port(s) Part
    Opening(s) where accelerated abrasive media enters the chamber from the blast wheel or nozzle system.
    Material: Abrasion-resistant steel
  • Recovery Hopper / Floor
    Sloped floor or collection hopper that guides spent abrasive and debris toward the recovery system (e.g., screw conveyor).
    Material: Abrasion-resistant steel with liner

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Blast Chamber.

Blasting Cabinet Blast Enclosure

Applied To / Applications

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

Shot Blasting Machine
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric to 0.5 bar gauge (for sealed systems, varies with design)
flow rate: 10-100 m³/min (airflow for media recovery and dust extraction)
temperature: -20°C to 150°C (typical operating range, depends on media and cooling)
slurry concentration: Not applicable (dry abrasive process, no slurry used)
Media Compatibility
✓ Steel grit (for heavy-duty descaling) ✓ Glass beads (for surface finishing) ✓ Aluminum oxide (for general-purpose cleaning)
Unsuitable: Wet or corrosive environments (leads to media clumping and chamber corrosion)
Sizing Data Required
  • Workpiece dimensions (max L x W x H to be accommodated)
  • Production throughput (parts/hour or surface area/hour)
  • Required surface finish (e.g., Sa 2.5 for cleaning, Sa 3 for near-white metal)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Abrasive erosion of internal surfaces
Cause: High-velocity impact of abrasive media (sand, steel shot, etc.) causing gradual material loss on chamber walls, baffles, and wear plates, leading to thinning, perforation, or structural weakening.
Fatigue cracking in structural welds or high-stress areas
Cause: Cyclic thermal and mechanical stresses from repeated heating/cooling cycles and vibration during operation, combined with potential stress concentrations at weld joints or sharp corners, leading to crack initiation and propagation.
Maintenance Indicators
  • Visible thinning, perforation, or bulging on chamber walls during internal inspection
  • Unusual vibration or resonant noise during operation indicating loose internal components, damaged baffles, or imbalance
Engineering Tips
  • Implement a regular thickness monitoring program using ultrasonic testing (UT) on high-wear areas to track erosion rates and schedule liner replacements before failure occurs.
  • Use stress-relieving procedures after welding repairs and ensure proper design of internal baffles/wear plates to minimize stress concentrations and thermal fatigue.

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
ISO 8501-1:2007 (Surface preparation standards for blast cleaning) ASTM E11-20 (Standard Specification for Woven Wire Test Sieve Cloth and Test Sieves) CE Marking (Pressure Equipment Directive 2014/68/EU for pressure vessels)

Quoted from the published standard.

Manufacturing Precision
  • Wall Thickness: +/-1.5mm
  • Nozzle Alignment: +/-0.5° angular deviation
Quality Inspection
  • Pressure Test (hydrostatic/pneumatic) to 1.5x working pressure
  • Visual Inspection for surface defects and weld integrity per ASME Section V

Manufacturers of Blast Chamber

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.

Kholee Industrial Technology Yancheng Co., Ltd.
Jiangsu, CN
Also makes: Compressed Air System, Shot Blasting Machine, Dust Collector and 3 more
Listed on the company's own website · profile compiled by CNFX from public sources
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Frequently Asked Questions

What is the function of a blast chamber in a shot blasting machine?

The blast chamber is the enclosed workspace where abrasive media is propelled against the workpiece surface. It contains the abrasive and debris, protects the environment, and supports media recovery.

What materials are commonly used for blast chamber construction?

Typical materials include abrasion-resistant steel plate (e.g., AR400, Mn steel) and wear-resistant liner plates or rubber linings to withstand abrasive wear.

What parameters should be verified when selecting a blast chamber?

Key parameters include chamber volume, maximum workpiece weight, blast wheel power, abrasive flow rate, wall thickness, operating temperature, dust concentration, noise level, electrical supply, degree of protection, dimensions, and weight. Always confirm these with the manufacturer for your specific application.

What standards are relevant to blast chamber performance?

Relevant standards include GB 16297 for dust concentration, ISO 11201 for noise level, IEC 60038 for electrical supply, and IEC 60529 for degree of protection. Compliance must be verified with the supplier.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

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

Preliminary Technical Classification
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