Name: Mitutoyo 2050A-19 Standard Metric Dial Indicator - INOSAKI
SKU: Mitutoyo-2050A-19
Price: 79.35 USD
Availability: InStock

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

Technical Specification Matrix

Parameter	Value
Measuring Range	20 mm
Graduation	0.01 mm
Dial Reading	0-100
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
Repeatability	4 µm
Hysteresis	5 µm
Measuring Force	2.0 N or less
Stem Diameter	8 mm
Contact Point	Carbide tipped, M2.5 x 0.45 thread
Back Type	Lug back
Bearing Type	Jeweled bearing
Shockproof	Yes
Cushioned End Point	Yes
Bezel Diameter	57 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