Precision Flat Level for Used CNC Machine Inspection Before Purchase Malaysia

Precision Flat Level for Used CNC Machine Inspection Before Purchase Malaysia

Introduction

Buying a used CNC machine in Malaysia can help manufacturing companies reduce their initial machinery investment.

However, purchasing second-hand machinery involves technical risks.

A machine may appear to operate normally while having problems involving machine geometry, spindle condition, positioning accuracy, machine bed distortion or maintenance history.

Before purchasing a used CNC lathe, milling machine or machining center, buyers should arrange an appropriate used CNC machine inspection.

One instrument that may support certain inspection activities is a precision flat level.

The RIKEN KEISOKUKI RFL-1502 and RFL-2002 Precision Flat Levels are Japanese instruments featuring 0.02 mm/m sensitivity.

Both models are intended for machine assembly, installation and centering applications.

MTM Precision Sdn Bhd supplies these RIKEN precision levels in Malaysia.

This guide explains how precision flat levels may assist with second-hand CNC machine inspection, what measurements should be considered and which problems require additional inspection instruments.

1. Why Inspect a Used CNC Machine Before Purchase?

A used CNC machine may have been operating for many years before being offered for sale.

Its condition can depend on several factors.

These include:

Operating Hours

Maintenance History

Previous Machine Relocation

Machine Foundation Condition

Accidental Damage

Machine Geometry

Spindle Condition

Axis Movement

Lubrication and Cooling Systems

Previous Repairs

A machine may be suitable for one production application but unsuitable for another.

For example, a workshop performing general machining may have different accuracy requirements from a precision engineering company producing close-tolerance components.

Used CNC machine inspection should be based on the buyer's intended manufacturing requirements.

2. What Should Buyers Check on a Second-Hand CNC Machine?

A pre-purchase inspection may include several categories.

Machine Identification

Confirm the machine manufacturer, model, serial number and available technical documentation.

Mechanical Condition

Inspect visible wear, damage, leaks and other mechanical issues.

Machine Geometry

Evaluate the relevant geometric characteristics using suitable procedures.

Spindle Condition

Check appropriate spindle characteristics and operational performance.

Axis Movement

Inspect machine axis operation and any required positioning characteristics.

Machine Leveling Condition

Measure inclination at approved reference surfaces when relevant.

Electrical and Control Systems

Check relevant electrical and CNC control functions through qualified personnel.

Maintenance Records

Review available service and repair history.

Test Machining

Where practical, conduct appropriate test machining and inspect the resulting workpiece.

A precision flat level is only one possible instrument within this broader inspection process.

3. Why Is Machine Leveling Relevant to Used CNC Inspection?

Machine leveling is one aspect of equipment installation and maintenance.

An unsuitable installation condition may influence certain machine geometry characteristics, depending on the machine design.

For some machines, support adjustment can affect the machine structure.

Important Considerations

Foundation Condition

The machine's current foundation may differ from the buyer's future installation site.

Machine Supports

Support conditions may influence the machine's geometry.

Machine Relocation History

Previous relocation may have changed installation conditions.

Reference Surface Inclination

A precision level can help measure inclination at designated reference positions.

However, an incorrect leveling reading does not necessarily prove that the machine is permanently damaged.

Likewise, a satisfactory leveling reading does not prove that the machine has acceptable overall accuracy.

Machine leveling should be evaluated together with other inspection results.

4. RIKEN RFL-1502 and RFL-2002 Specifications

The RIKEN KEISOKUKI Precision Flat Level Series includes instruments intended for precision machinery applications.

SpecificationRFL-1502RFL-2002ManufacturerRIKEN KEISOKUKIRIKEN KEISOKUKICountry of OriginJapanJapanInstrument TypePrecision Flat LevelPrecision Flat LevelNominal Length150 mm200 mmSensitivity0.02 mm/m0.02 mm/mNet Weight1.8 kg2.3 kgIntended ApplicationPrecision MachineryPrecision Machinery

RIKEN RFL-1502

The 150 mm model may be suitable for smaller approved reference surfaces.

RIKEN RFL-2002

The 200 mm model may be preferred where a longer suitable measuring surface is available.

Both instruments have the same specified sensitivity.

Instrument length alone does not establish measurement accuracy.

5. Understanding 0.02 mm/m Sensitivity

Both RIKEN models feature 0.02 mm/m sensitivity.

This represents an inclination equivalent to a height difference of 0.02 mm over a horizontal distance of one metre.

Equivalent Inclination Table

Horizontal DistanceEquivalent Height Difference100 mm0.002 mm150 mm0.003 mm200 mm0.004 mm500 mm0.010 mm1,000 mm0.020 mm

For example:

0.02 mm/m × 0.2 m = 0.004 mm

An inclination of 0.02 mm/m corresponds mathematically to a height difference of 0.004 mm across 200 mm.

These values illustrate slope.

They do not represent guaranteed instrument accuracy or machine acceptance tolerances.

Sensitivity, accuracy and measurement uncertainty are different measurement characteristics.

6. Can a Precision Flat Level Detect Machine Bed Twist?

A precision flat level may support certain machine bed twist inspection procedures.

This is particularly relevant to some lathe designs.

What Is Machine Bed Twist?

Machine bed twist refers to a geometric condition involving torsional deformation of the machine bed.

Depending on the machine design, incorrect support conditions may contribute to this condition.

How a Precision Level May Help

A technician may take inclination measurements at manufacturer-specified reference positions.

The results may assist in evaluating differences in inclination along the machine.

Important Limitation

A single reading cannot establish whether a machine bed is free from twist.

The correct interpretation depends on:

Machine design

Measuring positions

Instrument orientation

Support conditions

Manufacturer's inspection procedure

Applicable acceptance limits

A precision level may support bed twist investigation, but it does not replace a complete machine geometry inspection.

7. Used CNC Lathe Inspection Before Purchase

A used CNC lathe inspection should consider both mechanical and operational condition.

Machine Bed

Inspect for visible damage, wear and relevant geometric characteristics.

Machine Leveling

Use suitable precision leveling measurements where specified.

Spindle

Evaluate relevant spindle characteristics using appropriate instruments.

Axis Movement

Check the operation and condition of the relevant machine axes.

Tool Turret

Inspect tool indexing and operational condition where applicable.

Lubrication System

Check for relevant maintenance problems.

Test Machining

Where possible, conduct a suitable machining test.

Inspection Records

Document findings and any limitations.

A RIKEN RFL-1502 or RFL-2002 may support the leveling-related portion of the inspection.

However, other measuring instruments are required for additional geometric and operational assessments.

8. Used CNC Milling Machine Inspection Before Purchase

When buying a second-hand CNC milling machine, buyers should consider several inspection areas.

Machine Structure

Check for visible damage and signs of previous repair.

Machine Leveling

Evaluate inclination at approved reference positions when required.

Table Movement

Inspect relevant movement characteristics.

Spindle Condition

Check appropriate spindle performance characteristics.

Axis Geometry

Evaluate specified geometric relationships using suitable instruments.

CNC Controller

Check relevant control functions and operational condition.

Test Cutting

Where possible, conduct an appropriate machining test.

A precision flat level cannot directly measure spindle runout, axis squareness or CNC positioning accuracy.

9. Used Vertical Machining Center Inspection

A used Vertical Machining Center (VMC) may require a detailed pre-purchase assessment.

Important inspection areas may include:

Machine foundation and support condition

Machine geometry

Spindle operation

Axis movement

Tool changer function

Lubrication and cooling systems

CNC controller operation

Maintenance records

Test machining results

A precision level may help verify specified inclination conditions.

However, the machine's broader geometric and operational performance must be assessed separately.

A VMC that appears level is not automatically a geometrically accurate machine.

10. How to Use a Precision Level During Used CNC Inspection

The following procedure describes general measurement principles.

Actual measuring positions and interpretation must follow the machine manufacturer's instructions.

Step 1 - Identify the Machine

Record the manufacturer and model.

Step 2 - Obtain Technical Documentation

Review the machine's inspection and leveling requirements.

Step 3 - Confirm Instrument Suitability

Check sensitivity, dimensions and calibration status.

Step 4 - Identify the Approved Reference Surface

Use the specified measuring position.

Step 5 - Inspect the Measuring Surface

Check for contamination or damage.

Step 6 - Position the Precision Level

Place the instrument carefully.

Step 7 - Allow the Reading to Stabilize

Avoid excessive vibration and unsuitable measurement conditions.

Step 8 - Record the Indication

Follow the instrument manufacturer's reading procedure.

Step 9 - Repeat at Required Positions

Document readings from the specified locations.

Step 10 - Evaluate the Results

Compare the results with the applicable machine requirements.

Do not adjust a seller's machine without permission or an agreed inspection procedure.

11. What Can a Precision Level Measure and What Can It Not Measure?

This distinction is particularly important for second-hand machinery buyers.

Inspection ItemPrecision Flat Level Suitable?Inclination at a Reference SurfaceYesSpecified Machine Leveling CheckYes, When Requirements MatchCertain Bed Twist InvestigationsMay Support the ProcedureSpindle RunoutNoCNC Axis Positioning AccuracyNoAxis RepeatabilityNoComplete Axis Squareness VerificationNoBearing ConditionNoCNC Controller ConditionNoComplete Machine Geometry InspectionNo

A precision level provides useful inclination information.

It should not be presented as a complete machine condition testing system.

12. Other Instruments for Used CNC Machine Inspection

Different measurements require different instruments.

InstrumentTypical Inspection ApplicationPrecision Flat LevelInclination and levelingDial IndicatorRunout and displacement comparisonDial Test IndicatorSmall displacement comparisonPrecision StraightedgeStraightness-related checksPrecision SquareSquareness-related referenceLaser InterferometerSpecified positioning measurementsBallbar SystemCertain CNC contouring performance testsVibration AnalyzerAppropriate vibration condition assessmentTemperature InstrumentRelevant temperature measurements

The correct instrument selection depends on the machine, inspection objective and applicable measurement procedure.

Professional used machine inspection may require several instruments and experienced technical personnel.

13. Why Current Machine Leveling Does Not Guarantee Future Performance

A used CNC machine may be inspected at the seller's factory.

After purchase, the machine may be relocated to the buyer's facility.

The new installation conditions may be different.

Possible Changes

Foundation

The new factory floor may have different characteristics.

Machine Supports

The support arrangement may change.

Transport

Moving and handling may affect installation conditions.

Temperature

The new environment may differ.

Machine Geometry

Certain geometric characteristics may require re-verification after installation.

Recommended Practice

Conduct appropriate inspection before purchase.

After relocation, follow the machine manufacturer's reinstallation, leveling and commissioning procedures.

Pre-purchase leveling results should not be treated as a guarantee of the machine's condition after relocation.

14. Common Mistakes When Inspecting Used CNC Machines

Mistake 1 - Checking Only Whether the Machine Runs

A machine may operate while having geometric or performance problems.

Mistake 2 - Using Only a Precision Level

A precision level cannot assess every important machine characteristic.

Mistake 3 - Ignoring Maintenance History

Previous maintenance and repair records may provide useful information.

Mistake 4 - Assuming a Level Machine Is Accurate

Leveling and overall machine accuracy are different.

Mistake 5 - Using the Wrong Reference Surface

Measurements should follow the manufacturer's inspection procedure.

Mistake 6 - Ignoring Instrument Calibration

The measuring instrument must be suitable for the required inspection.

Mistake 7 - Skipping Test Machining

A suitable test machining procedure may reveal operational issues not identified through leveling checks.

Mistake 8 - Forgetting Reinstallation Requirements

A machine may require new leveling and geometry verification after relocation.

15. Used CNC Machine Pre-Purchase Inspection Checklist

The following checklist may help buyers organize their inspection.

Inspection CategoryRecommended CheckMachine IdentificationManufacturer, model and serial numberMachine HistoryAge, usage and maintenance recordsPhysical ConditionVisible wear and damageFoundation and SupportsCurrent installation conditionMachine LevelingSpecified inclination measurementsMachine GeometryApplicable geometric inspectionSpindleRelevant condition and performanceAxis MovementMovement and positioning checksCNC ControllerRelevant operational functionsLubrication SystemCondition and maintenanceTest MachiningSuitable production testInspection ReportFindings and limitations

The checklist should be adapted to the machine type and the buyer's requirements.

16. How to Record Used CNC Machine Inspection Results

Documentation is useful when comparing different second-hand machines.

An inspection record may include:

Machine Information

Manufacturer, model, serial number and location.

Inspection Date

Date of the assessment.

Measuring Instruments

Instrument model and identification.

Measurement Positions

Approved reference positions.

Recorded Results

Actual measured values.

Acceptance Criteria

Applicable machine manufacturer requirements or agreed inspection criteria.

Inspection Limitations

Any measurements that could not be completed.

Example Record

ItemExample EntryMachine TypeUsed CNC LatheInspection StagePre-PurchasePrecision LevelRIKEN RFL-1502Sensitivity0.02 mm/mMeasuring PositionManufacturer-Specified PositionReadingRecord Actual ValueAcceptance LimitApplicable SpecificationResultEvaluate Against Requirement

This is an illustrative template, not an actual inspection result.

Inspection reports should distinguish measured facts from assumptions and recommendations.

17. Used CNC Machinery Inspection Applications in Malaysia

The RIKEN Precision Flat Level Series may be relevant to used machinery buyers and inspection contractors throughout Malaysia.

Selangor and Kuala Lumpur

Second-hand machinery buyers, CNC workshops and industrial service providers may require machine condition inspection.

Johor

Manufacturing facilities and machinery relocation companies may require pre-purchase and reinstallation checks.

Penang

Precision engineering and electronics manufacturing companies may evaluate used CNC equipment before purchasing.

Melaka and Negeri Sembilan

Industrial manufacturers may require machine inspection when expanding production capacity.

Perak and Kedah

Machine tool workshops and industrial engineering companies may use precision leveling instruments during equipment assessment.

MTM Precision Sdn Bhd supports product enquiries throughout Malaysia, including Pahang, Kelantan, Terengganu, Perlis, Sabah and Sarawak.

18. Frequently Asked Questions About Used CNC Machine Inspection

Q1. Can a precision level be used to inspect a used CNC machine?

Yes. It may support specified machine leveling and inclination measurements.

Q2. Can a precision level confirm that a used CNC machine is accurate?

No. Additional geometric and operational inspections are required.

Q3. Can a precision level detect machine bed twist?

It may support certain bed twist inspection procedures when used according to the machine manufacturer's instructions.

Q4. What is the sensitivity of RIKEN RFL-1502?

The RIKEN RFL-1502 has 0.02 mm/m sensitivity.

Q5. What is the sensitivity of RIKEN RFL-2002?

The RIKEN RFL-2002 also has 0.02 mm/m sensitivity.

Q6. Is RFL-2002 more accurate than RFL-1502?

Not necessarily. Both have the same specified sensitivity, and length alone does not establish accuracy.

Q7. Should I inspect a CNC machine before buying it?

Yes. An appropriate inspection can help identify technical risks and inform the purchasing decision.

Q8. Should a used CNC machine be leveled again after relocation?

Follow the manufacturer's reinstallation procedure, which may require leveling and additional geometry verification.

Q9. Can a precision level measure spindle runout?

No. Spindle runout requires a suitable measuring method and instrument.

Q10. Where can I buy RIKEN Precision Flat Levels in Malaysia?

Contact MTM Precision Sdn Bhd for product enquiries and quotations.

19. Buy RIKEN Precision Flat Level for Used CNC Machine Inspection Malaysia

If your company requires a high sensitivity precision flat level for CNC machinery inspection, MTM Precision Sdn Bhd supplies Japanese RIKEN instruments.

RIKEN RFL-1502 Precision Flat Level

Length: 150 mm

Sensitivity: 0.02 mm/m

Net Weight: 1.8 kg

Origin: Japan

RIKEN RFL-2002 Precision Flat Level

Length: 200 mm

Sensitivity: 0.02 mm/m

Net Weight: 2.3 kg

Origin: Japan

Typical Applications

Used CNC Machine Inspection Support

Machine Tool Leveling

Precision Lathe Inspection

CNC Milling Machine Installation

Machine Relocation

Industrial Equipment Maintenance

Precision Machinery Inspection

Contact MTM Precision for product quotations and current stock availability.

20. Contact MTM Precision Sdn Bhd

MTM Precision Sdn Bhd

Showroom & Service Centre

No. 29-1 & 29-2, Jalan Bandar 18,

Pusat Bandar Puchong,

47160 Puchong, Selangor, Malaysia.

Telephone: 03-8080 7172

WhatsApp: +6016-660 7346

Email: mtmpre@yahoo.com

Website: www.mtmpre.com.my

For RIKEN RFL-1502 and RFL-2002 Precision Flat Level Malaysia enquiries, contact our team through WhatsApp.

Please send us your machine model, required sensitivity, measuring surface dimensions or inspection application details.

Our team can assist with product selection and quotation requests.

If calibration documentation is required, please mention this when enquiring so that available options can be checked.

Conclusion

Buying a used CNC machine requires careful evaluation of mechanical condition, geometry, operational performance and maintenance history.

A precision flat level may support machine leveling and certain geometry-related inspection activities.

However, a precision level alone cannot establish the complete condition or accuracy of a second-hand CNC machine.

The RIKEN RFL-1502 and RFL-2002 Precision Flat Levels both feature 0.02 mm/m sensitivity for precision machinery applications.

The RFL-1502 has a 150 mm body, while the RFL-2002 has a 200 mm body.

Both instruments are supplied by MTM Precision Sdn Bhd in Malaysia.

For customers searching for RIKEN Precision Flat Level Malaysia, contact MTM Precision for product information, quotations and assistance selecting a suitable instrument.