Certify Noise & Vibration Criteria
Before Deployment.
Many manufacturing machines require pre-delivery certification to assure compliance with specified noise and/or vibration specifications. Memtech Acoustics has the in-house expertise to quickly execute any required testing to meet these standards, and to supply compliant documentation as needed.
Certify Before You Operate.
Original equipment manufacturers (OEMs) and system integrators, typically are required to meet customer-specified noise and vibration criteria prior to delivery. This is intended to assure that the equipment does not exceed the desired noise target for the end-user plant, or that excessive vibration does not cause part quality or reliability concerns.
At Memtech Acoustics, our Machine Run-Off Validation services, FAT (Factory Acceptance Testing), or SAT (Site Acceptance Tests), provide accurate noise and/or vibration certification in compliance with customer specifications. We have worked directly with many OEMs and end-users, and are familiar with the testing requirements
At Memtech Acoustics, our Machine Run-Off Validation services, FAT (Factory Acceptance Testing), or SAT (Site Acceptance Tests), provide accurate noise and/or vibration certification in compliance with customer specifications. We have worked directly with many OEMs and end-users, and are familiar with the testing requirements
We test both standalone machines and systems integrated into larger production lines or test cells.
Our Testing Services
We utilize calibrated, NIST-traceable equipment and conform with ISO testing methodologies to assure that the certifications will meet or exceed the end-users specifications.
Sound Level Certification
Measurement of machine noise output under required operating conditions, including long-cycle CNC machine systems.
Sound Power Testing
Using acoustic-intensity methods, we can determine the total sound power of a machine or system, presented in any desired format.
Vibration Certification
We can perform appropriate vibration validation testing, to overall, band-limited, or full spectral requirements. Modal testing is also available.
Remediation Support
In the event that tests fail any element of the specified criteria, we can provide technical support to determine root-causes.
Test Reports and Certificates
Documented test procedures, measurement conditions, compliance evaluations, and pass/fail certifications are supplied for all tests.
Machine ACCEPTANCE testing
Our Approach & Capabilities
Memtech Acoustics' run-off testing services span the full spectrum of industrial and automation equipment.
We conduct Factory Acceptance Tests (FATs) for pre-shipment validation, or Site Acceptance Tests (SATs) post-installation, capturing noise levels and vibration profiles.
We then deliver fully documented results, including run-off checklists, acoustic reports, and compliance certifications.
We conduct Factory Acceptance Tests (FATs) for pre-shipment validation, or Site Acceptance Tests (SATs) post-installation, capturing noise levels and vibration profiles.
We then deliver fully documented results, including run-off checklists, acoustic reports, and compliance certifications.
Our approach:
- FAT or SAT Execution
Whether at the OEM facility or your site, we replicate real-world operating conditions to test cycles, control functions, and acoustic behavior. - High-Fidelity Noise & Vibration Monitoring
Using Class 1 sound meters and accelerometers, we capture tonal spectra, broadband emissions, and structural resonances throughout run-off. - Performance Mapping & Statistical Validation
We assess equipment stability using metrics like Cpk, Ppk, and measurement system analysis (MSA) to confirm repeatability and quality. - Customization & Collaboration
We integrate run-off plans into your project timeline, coordinate with OEM partners, and adapt tests around your operation readiness. - Turnkey Reporting
Detailed reports validate acoustic/vibration performance, safety adherence, and functional milestones with actionable findings and pass/fail documentation.
Who Needs Machine Runoff Testing?
- OEMs preparing for factory acceptance testing (FAT)
- Integrators certifying systems for end-users
- Manufacturers purchasing new equipment
- Maintenance teams verifying machine upgrades or rebuilds
- Consultants supporting warranty or regulatory compliance
The Memtech Difference
At Memtech, noise is our business. Our engineers oversee every step, ensuring that each project is properly delivered, on-time and within budget. This integrated approach delivers predictable results and protects your investment.
Certified and Licensed Professionals
Testing conducted by certified engineers and acoustic specialists, not general contractors or “safety consultants.”
National Standards Alignment
We follow OSHA 1910.95, NIOSH criteria, and ANSI S12.19-1996 methods for noise exposure assessment. Measurements are conducted via ISO procedures or per academically accepted methods.
Engineering Expertise
Noise measurements, analysis, modeling and installation support are overseen by professionals who understand acoustic theory, as well as the implementation of practical solutions.
High Responsiveness, Proven Reliability
We are your trusted local partner providing on-demand support and dependable project execution. Michigan-based with regional reach and national* shipping capabilities.
Confidential & Detailed Reporting
We don’t just submit a report. You are provided with complete documentation, delivered in easy-to-understand language with accurate data and comprehensive drawings.
*Shipping available across the continental USA, and international; installations are offered in select regions.
NOTE: We do not stock custom products in our U.S. warehouse. Ask us about lead times for your project.
NOTE: We do not stock custom products in our U.S. warehouse. Ask us about lead times for your project.
Our Testing Process
Baseline Noise Measurement
Memtech Acoustics establishes ambient and background noise levels at the test site to ensure accurate source-level measurements and eliminate environmental interference from the final data.
Frequency and Tonal Analysis
Octave band and narrowband frequency analysis identifies the spectral content of machine noise, isolating tonal components that may indicate mechanical issues or exceed specification limits.
Source-Level Evaluation
Using calibrated Class 1 instrumentation, Memtech Acoustics measures noise and vibration at operator positions and near-field locations per ISO 11201 and ISO 3744 methods.
Performance Verification
Test results are evaluated against the end-user's acceptance criteria, with pass/fail determinations supported by statistical analysis including Cpk/Ppk process capability metrics where required.
Corrective Guidance
If equipment exceeds specified limits, Memtech Acoustics provides diagnostic findings identifying root causes and recommends targeted corrective actions before retest.
Standards and Compliance
Memtech Acoustics conducts all machine acceptance testing in accordance with recognized national and international standards. Every measurement uses NIST-traceable, Class 1 instrumentation to produce defensible, audit-ready results.
- OSHA 29 CFR 1910.95
Occupational noise exposure limits and hearing conservation requirements for worker safety compliance. - ISO 11201
Sound pressure level measurement at operator positions under standardized conditions for equipment acceptance. - ISO 3744
Sound power level determination for equipment noise characterization and comparison against manufacturer specifications. - ANSI S12.19-1996
Measurement of occupational noise exposure using calibrated instrumentation and documented procedures. - NIOSH Recommended Exposure Limits
More conservative exposure criteria used alongside OSHA limits for enhanced worker protection.
Projects and Applications
Memtech Acoustics has completed machine acceptance testing across automotive, energy, emergency vehicle, and industrial manufacturing sectors.
ABB Parts Washer - Ford Manufacturing
Noise control testing and certification for an ABB industrial parts washing system installed at a Ford manufacturing facility, verifying compliance with plant noise specifications.
SoundOff Signal - Emergency Siren Testing
Anechoic chamber testing for emergency vehicle siren systems, verifying acoustic output and directivity patterns under controlled laboratory conditions.
Magna Cosma - Body Assembly Enclosures
Acoustic enclosure design and noise verification for automated body assembly equipment at a Magna Cosma automotive production facility.
Enchanted Rock - Engine Test Cell
Noise testing and validation for large engine test cells in the energy sector, ensuring compliance with site-specific noise criteria and operational requirements.
Frequently Asked Questions (FAQs)
What is a machine noise or vibration run-off test?
A run-off test is a structured measurement sequence, defined by the end-user or equipment buyer, to verify that a machine meets specified noise or vibration levels before delivery. Memtech Acoustics performs these tests at the manufacturer's facility using NIST-traceable, Class 1 instrumentation and methods aligned with ISO 11201, ISO 3744, and ANSI S12.19-1996 to produce defensible, repeatable results.
Why involve acoustic and vibration measurement during a run-off?
Noise limits are often specified by end-users to keep the workplace within OSHA 1910.95 permissible exposure levels and NIOSH recommended limits. Vibration testing verifies that machine performance is acceptable for both reliability and part-quality requirements. Memtech Acoustics uses vibration analysis to identify misalignments, resonances, or structural issues that may affect equipment lifespan or operational factors, giving buyers documented evidence before the machine ships.
Is machine acceptance testing mandatory?
Testing requirements depend on the end-user's procurement specifications and are not dictated by code. However, many manufacturers and buyers include noise and vibration acceptance criteria in purchase orders to protect against warranty disputes, reduce installation risk, and meet internal workplace safety standards. Memtech Acoustics helps both OEMs and end-users define pass/fail criteria and execute testing protocols that satisfy procurement requirements.
What is the difference between a factory acceptance test (FAT) and a site acceptance test (SAT)?
A factory acceptance test (FAT) measures noise and vibration at the manufacturer's facility before the equipment ships. A site acceptance test (SAT) repeats those measurements after installation at the end-user's plant to confirm performance under actual operating conditions. Memtech Acoustics performs both FAT and SAT testing, using the same NIST-traceable instrumentation and ISO-aligned methods at each stage so results are directly comparable.
What happens if equipment fails a machine acceptance test?
When equipment does not meet the specified noise or vibration criteria, Memtech Acoustics provides a detailed diagnostic report identifying the source and severity of the exceedance. This report gives the manufacturer actionable data to make corrections, whether that involves balancing, alignment adjustments, isolation modifications, or structural reinforcement. Memtech Acoustics can then retest the equipment to confirm that the corrective actions brought performance within specification.
How long does a typical machine acceptance test take?
Duration depends on the complexity of the equipment and the number of operating conditions specified in the test protocol. A single-machine run-off with a defined set of speed and load conditions typically takes one to two days of on-site measurement. Multi-machine or multi-condition programs may take longer. Memtech Acoustics coordinates scheduling with the manufacturer to minimize production disruption and delivers preliminary results before leaving the facility.
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