Mitutoyo 2050A-19 Standard Metric Dial Indicator

USD 79.35

Metric Series 2 dial indicator featuring a 20mm range, 0.01mm graduation, shockproof jeweled bearing, O-ring front seal, and 8mm stem diameter.

SKU Mitutoyo-2050A-19 Category
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Mitutoyo 2050A-19 Standard Metric Dial Indicator

Model Identifier 2050A-19
Official Part Number 2050A-19
GTIN Standard 4946368842295

Technical Overview

Metric Series 2 dial indicator featuring a 20mm range, 0.01mm graduation, shockproof jeweled bearing, O-ring front seal, and 8mm stem diameter.

Key Features

  • Long-stroke measuring range of up to 20 mm with 0.01 mm graduation
  • Watertight assembly with O-ring prevents oil and water penetration through the front face
  • Shockproof mechanism absorbs impacts to protect internal gears from damage
  • Jeweled bearings provide low friction and high wear resistance for smooth operation
  • Hard-coated crystal surface offers scratch and chemical resistance
  • Quench-hardened stainless steel spindle and stem for heavy-duty application durability
  • Carbide contact point with M2.5 x 0.45 thread for long service life
  • Lug back design provides robust and standard mounting configuration

Shockproof mechanism and jeweled bearings combined with an O-ring sealed watertight bezel to ensure ultra-precise, durable measurements under high-vibration conditions.

Technical Specification Matrix

ParameterValue
Measuring Range20 mm
Graduation0.01 mm
Dial Reading0-100
Accuracy (MPE Measuring Range)20 µm
Accuracy (MPE 1/10 Rev)8 µm
Accuracy (MPE 1/2 Rev)10 µm
Accuracy (MPE 1 Rev)15 µm
Repeatability4 µm
Hysteresis5 µm
Measuring Force2.0 N or less
Stem Diameter8 mm
Contact PointCarbide tipped, M2.5 x 0.45 thread
Back TypeLug back
Bearing TypeJeweled bearing
ShockproofYes
Cushioned End PointYes
Bezel Diameter57 mm
Physical Weight (kg)0.15
Dimensions L x W x H (cm)11.4 x 5.7 x 3.77

Industrial Applications

1. CNC Lathe Tooling Alignment and Runout Measurement

In high-precision turning environments, machinists check spindle runout and tooling alignment. Since the process involves cutting oils and coolants, standard dial indicators quickly fail. The Mitutoyo 2050A-19, with its watertight crystal-to-bezel assembly and O-ring sealing, resists oil and coolant splash, ensuring sustained precision.

Problem Solved

Prevents instrument failure due to coolant/oil ingress and protects internal gearing while verifying spindle/tooling alignment within 0.01mm tolerances.

Spindle RunoutCNC LatheCoolant ResistantTooling Alignment0.01mm Accuracy

2. Quality Control and Dimensional Verification of Stamped Automotive Parts

Sheet metal press lines experience high vibration and sudden impacts when parts are unloaded. The shockproof mechanism and jeweled bearings of the Mitutoyo 2050A-19 absorb structural impacts during the rapid placement and testing of stamped parts on fixture gauges, preserving the calibrated accuracy (20 µm overall MPE) over thousands of cycles.

Problem Solved

Eliminates mechanical gear damage and measurement drift caused by severe vibrations and sudden shock loads on fixture inspection stations.

Stamp Fixture GaugeShockproof MechanismJeweled BearingStamped Sheet MetalMPE 20 µm

3. Long-Stroke Actuator and Cylinder Stroke Monitoring

Hydraulic and pneumatic cylinder displacements frequently exceed typical 10mm limits, requiring long-stroke measurement tools. The 20mm travel range of the 2050A-19 allows engineers to monitor full actuator extension and retraction profiles. The carbide-tipped contact point ensures long-lasting wear resistance during repeated slide engagements.

Problem Solved

Overcomes the limitation of short-travel indicators in monitoring long-stroke hydraulic pistons and pneumatic cylinder positions with standard lug back mounting.

20mm Long StrokeCylinder DisplacementCarbide Contact PointLug Back MountingPlunger Dial Indicator
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