Mitutoyo 552-312-10 Electronic Caliper 18 in IP66

Product Description

The MITUTOYO 552-312-10 is a large-range digital caliper from the 552 Digimatic Carbon Fiber series, measuring outside and inside diameters from 0 to 18 inches with a resolution of 0.0005 inches and an accuracy of 0.0020 inches. The body and jaws are constructed from carbon fiber reinforced plastic, reducing instrument weight while maintaining rigidity across the full measuring range. Rated IP66, the caliper resists dust ingress and high-pressure water jets, making it suitable for shop-floor and production environments where coolant exposure is a concern. A built-in data output port supports direct connection to SPC data collection systems. Power comes from a single SR44 silver oxide battery, which is included. Licensed metrologists, quality technicians, and precision machinists are the primary users of this instrument.

The 552-312-10 is designed for applications requiring large-range dimensional measurement in industrial, manufacturing, and inspection settings. The 18-inch maximum measuring range accommodates large workpieces that standard 6-inch or 12-inch calipers cannot reach. The nib-style jaws with a 100 mm jaw length allow outside diameter measurement of large cylindrical or flat components. Minimum inside diameter measurement starts at approximately 0.5040 inches, covering a broad range of bore and slot inspection tasks. The instrument ships with a protective carrying case.

Key Features

• 0 to 18 inch measuring range with 0.0005 inch resolution and 0.0020 inch accuracy
• IP66-rated for dust and high-pressure water resistance in production environments
• Carbon fiber reinforced plastic body and jaws for reduced weight and corrosion resistance
• Nib-style jaws, 100 mm jaw length, suitable for outside and inside diameter measurement
• Data output port for direct SPC system integration
• Includes SR44 silver oxide battery and protective carrying case

Compatibility

Designed as an OEM instrument within the MITUTOYO 552 Digimatic Carbon Fiber series; compatible with MITUTOYO SPC data output cables and interfaces that accept standard Digimatic signal output.

Installation Notes

No permanent installation is required for handheld caliper use. Before use, ensure the jaws are fully closed and zero the instrument on a clean reference surface. When connecting to an SPC data collection system, power down the receiving device before attaching the data output cable. Follow the manufacturer calibration interval recommendations and applicable metrology lab or shop quality procedures for instrument verification.