Vibration Calculator

Vibration Calculator

Hand & Arm Vibratoion Online Calculator

At Nehmeh, we are very much aware of the hazards vibration can present, which is why we provide a way to keep track of your exposure to vibration on a daily basis, the below vibration calculator.

Are you wondering how to calculate vibration exposure, for one tool or more?
It’s simple!
1. Input the Vibration Magnitude (specified on the machine/tool) and represented in terms of m/s² (meters per second squared). A vibration meter can be used as needed. If your machine/tool does not have the vibration magnitude click here or reach out to our service center.
2. Then input the duration of exposure in both hours and minutes.
3. After clicking “Calculate”, you can can review results and further use our guides below for best-practice and guidelines.
Remember, you can add various tools and repeat the above as the calculator will keep track of the inputs and give you a total combined exposure reading that is important.

Note: The results of calculations are dependent on the quality and suitability of the data entered by the user.

Disclaimer

The online calculators are to generate queries only, we recommend working with experts to ensure suitability; if you are unsure or would like assistance analysing your current setup or application, feel free to contact us with your questions for professional advice from one from our experts. Nehmeh assumes no responsibility or liability for any errors or omissions using these online calculators. These online tools are guides and do not constitute as professional advice.


Risk Levels, Recommendations, and Controls
Daily Exposure (m/s² A(8))Daily Exposure PointsRisk LevelRecommendationControls
0 – 2.50 – 100LowNo action needed, continue monitoringRegular maintenance of tools and equipment
2.5 – 5.0101 – 400ModerateImplement control measures, monitor regularly
  • Use of anti-vibration gloves
  • Regular breaks
  • Job rotation
  • Proper tool selection
  • Maintenance of tools
5.0+401+HighImmediate action required to reduce exposure, use PPE and reassess work practices
  • Immediate cessation of work if possible
  • Change work practices
  • Use tools with lower vibration levels
  • Increase rest periods
  • Implement health surveillance

Explanation

Low Risk (0 – 2.5 m/s² A(8) or 0 – 100 points): No immediate action required but continue monitoring the vibration levels to ensure they remain within safe limits.

Moderate Risk (2.5 – 5.0 m/s² A(8) or 101 – 400 points): Employers should introduce technical and organizational measures to reduce exposure. Regular monitoring should be conducted to ensure exposure levels are controlled.

High Risk (Above 5.0 m/s² A(8) or above 400 points): Immediate action is required to reduce exposure. This may involve changes in work practices, using different tools, providing personal protective equipment (PPE), and implementing health surveillance programs to protect workers’ health.


Vibrations of Selected Power Tools
IndustryTool typeTool characteristic, inserted tool, size, processNotesRange- lower (10%ile)
(m/s²)
Range- upper (90%ile)
(m/s²)

Recommended initial value (75%ile)
(m/s²)

GeneralDrillsStandard drill bitVibration values can vary across the many sub-categories (eg small to large) and different materials being worked. Larger drills tend to give higher vibration values.

Maintaining sharp drill bits is important

255
GeneralDrillsHole saw41210
GeneralDrills – Core78–107 mmCan give very high vibrations if operators push too hard.

Maintaining sharp drill bits is important

688
GeneralDrills – Impact5 and 8 mm masonry bitCan give very high vibrations if operators push too hard.

Maintaining sharp drill bits is important

71311
GeneralGrinders – Angle100–180 mmVibration values will depend on the force being applied and the different materials being worked.

Selecting the right grade of abrasive and applying the right forces can help to minimise exposures

3107
GeneralGrinders – Angle125 and 100 mm Flapper discs254
GeneralGrinders –

Angle

220–300 mmVibration values can vary across the many sub-categories and different materials being worked.

Applying too much force can produce lobing of the discs and significantly increase vibration levels

4119
GeneralGrinders – Die5108
GeneralGrinders – StraightCorrect selection of the abrasive will ensure that workers do not apply excessive force and keep vibration magnitudes to a minimum498
GeneralNail gunsMeasured vibration levels are dependent upon rates of use. It can be difficult to assess exposure times correctly3139
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GeneralNeedle scalersNon-vibration reduced122619
GeneralNeedle scalersVibration reduced387
GeneralNibblers71212
GeneralReciprocating sawsOperator training and work organization is important. Lower vibrations can be achieved by keeping the tool’s nose against the workpiece72718
GeneralSanders – Random- orbitalVibration magnitudes are very dependent upon applied force. Lower vibration magnitudes can be achieved by applying the correct forces and using the appropriate abrasives61412
GeneralSanders – OrbitalVibration magnitudes are very dependent upon applied force. Lower vibration magnitudes can be achieved by applying the correct forces and using the appropriate abrasives4129
ConstructionBreakersVibration- reduced models with suspended handles or suspended bodiesNormal use by experienced operators. Lower values can often be achieved by improved operator training71814
ConstructionDemolition or rotary hammersCan give very high vibrations if operators push too hard.

Maintaining sharp drill bits is important

102118
ConstructionPlate compactorsNon-vibration reduced92218
ConstructionPlate compactorsVibration reduced274
ConstructionPneumatic hammersCan give very high vibrations if operators push too hard.

Maintaining sharp drill bits is important

102925
ConstructionSaws – Cut- offMasonry cutting51413
ConstructionScabblersWell-designed vibration-reduced machines can give vibration values of less than 5 m/s²41412
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ConstructionTrench rammers131313
ConstructionWater-jetting guns154
Forestry / HorticultureBrushcutters – Saw blade355
Forestry / HorticultureChainsawsGood maintenance is important, eg regular replacement of engine mounts and sharpening saw points377
Forestry / HorticultureHedge trimmersHigher vibration values are possible; the data here represents operations on hedges with hedge branches well within the capability of the machines.

Vibration values may be higher if the hedge trimmer often has to work hard to cut thicker branches

3147
Forestry / HorticultureMowers – Hand-guided386
Forestry / HorticultureMowers – Ride-on365
Forestry / HorticultureStrimmersBrushcutter – Strimmer277
EngineeringChipping hammersChipping weld203231
EngineeringImpact wrenchesDrive size: 3/8”, 1/2” & 3/4”Measured vibration levels are dependent upon rates of use. It can be difficult to assess exposure times correctly365
EngineeringImpact wrenchesDrive size: 1”Measured vibration levels are dependent upon rates of use. It can be difficult to assess exposure times correctly71110
EngineeringPedestal grindersCorrect selection of the abrasive will reduce the likelihood of workers applying excessive force and will keep vibration magnitudes to a minimum2118
EngineeringPolishers – Angle (hand-held)Mop head or soft-backed padVibration magnitudes are very dependent upon applied force. Low-vibration magnitudes are achieved by applying the correct forces133
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Stoneworking / mining / quarryingChipping hammersChipping stone, concrete, rustVery high-vibration values if the operator holds the chisel (more than 30–40 m/s²). Low-vibration machines are available that give magnitudes less than 10 m/s²112220
Stoneworking / mining / quarryingRock drillsVibration values can vary across the sub-categories (eg small and large drill bits and core drills and different materials being worked, such as concrete or stone). Maintaining sharp drill bits and not pushing too hard will achieve lower vibration values102826
Stoneworking / mining / quarryingStone hammersIf you are not using a vibration-reducing sleeved chisel then vibration values are likely to be much higher on the chisel hand72218
WoodworkingJigsaws91711
WoodworkingRouters233
WoodworkingStaplers264

Learn more about our HAVS

Vibration is a major topic that the power tool industry are working hard to provide solutions for.
Vibration in the workplace is a serious risk that any power tool user should take seriously. Without the proper precautions taken, permanent damage can be incurred such as White Finger.
Did you know too much vibration may cause HAVS (that is hand–arm vibration syndrome)? Also known as white finger or dead finger, and is a secondary form of Raynaud’s syndrome, an industrial injury triggered by continuous use of vibrating hand-held machinery.


Know the facts, on the go

Vibration Card

Courtesy from our friends in Makita UK, download the handy Vibration Card, print it off and keep it handy for when you’re working. It has all the information you’ll need to keep yourself safe and within the boundaries of vibration exposure.


Makita logo AVT Makita Concrete Breaker
Makita logo AVT Makita Concrete Breaker


Makita demolition tools are the best in the world. Working with users to solve the problem of vibration, Makita created AVT (Anti-Vibration Technology), the benchmark in vibration reduction, defining how products have been designed in close relation to users needs at site level.
Tools within the Makita range feature Anti Vibration Technology (AVT), a combination of innovations that operate together to reduce vibration while, in many cases, increasing the effectiveness of the machine.

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