Mitutoyo to Release the Surftest SJ-310 Series

The New Standard in On-Site Surface Roughness Measurement for Machining Applications

Mitutoyo Corporation (Headquarters: Takatsu-ku, Kawasaki City, Kanagawa Prefecture; President: Toru Nakagawa) is about to introduce to the market the newly developed Surftest SJ-310 series, a line of SJ-series portable surface roughness testers for managing surface roughness on-site, successor to the SJ-301 series, featuring easier operability and more extensive measurement and analysis features in a compact and easy-to-use size. Sales of SJ-310 series instruments began in Japan on April 23, 2012, and will gradually extend to overseas markets thereafter.

 

The current SJ-301 series has been well received by markets since its launch in 1998. However, today’s surface measurement market demands greater measurement and analysis functionality than ever before, reflecting the increasingly exacting requirements in the quality management of machined parts and an expansion in the range of applications for these instruments. Meanwhile, there is also a strong need for more affordable products that are easier to operate. 

 

To meet these needs, the SJ-310 series has all the basic features of a portable surface roughness tester, but with better performance. It comes with the same carrying case as the existing SJ-301 series, and includes a large color LCD touch panel for high visibility, as well as the option to choose from one of 16 display languages. It boasts an X-axis measuring range of 16.0mm (5.6mm with a transverse tracing drive unit), and a high-resolution detector with a resolution of 360μm. Three drive units are available: a standard drive unit, a transverse tracing drive unit, and a retractable drive unit. External ports include a USB port, Mitutoyo’s own Digimatic output port, an RS-232C port, and a footswitch port. Power is supplied from one of two sources: a built-in Ni-MH rechargeable battery, or an AC adapter. An optional SD memory card can store large amounts of measurement results and condition data. A high-speed, high-quality thermal printer built into the display unit prints approximately 1.5-times faster than the printer for the SJ-301 model, allowing for stress-free printing of graphs and other data. The large color-graphic LCD touch panel is 5.7 inches and backlit, dramatically improving readability in dark environments. The Surftest SJ-310 series was developed based on universal design principles, making it easy to use for people of all ages and nationalities.

 

Key Features

• Large display screen for an array of display options

Features a highly legible, 5.7-inch color-graphic LCD screen with backlight for dramatically easier operation. Also displays pass/fail results in color, and renders not only measurement results but also assessment profiles, bearing area curves, and amplitude distribution curves with clarity.

• Simple and intuitive operation

The 5.7-inch color-graphic LCD screen on the display unit allows users to switch between icon- and text-based display settings. The combination of icons and touch-screen navigation makes operation simple and intuitive. A guidance tool provides detailed explanations of touch-panel buttons for enhanced usability.

• Data storage facilitates on-site data collection

Internal memory can store up to 10 measurement conditions, making it possible to simultaneously view all measurement conditions specific to each workpiece. An optional SD memory card can store much more, including 500 measurement conditions, 10,000 measurement data items, 500 graphical data items, and 10,000 textual data items, facilitating on-site data collection and documentation. The memory card also comes with Trace 10, a function that automatically stores the 10 most recent measurements for easy retrieval.

 

• A fast-charging battery and support for more measurement orientations

The rechargeable battery charges in approximately a quarter the time and enables approximately 2.5-times as many measurements (1,500 measurements) to be made on a full charge compared to the battery in the current SJ-301 model. The detector supports a variety of measurement orientations and can take measurements on a wall surface (vertical surface) or while facing upward. Combined with optional accessories such as a height gauge adapter, the detector can take measurements in even more orientations and setups.

• Detectors and drive units for all measuring environments

Choose from two detector types, 0.75mN and 4mN measuring force, and from three drive unit types: a standard drive unit, transverse tracing drive unit, and retractable drive unit. The retractable drive unit stays in a retracted position to prevent the detector from being damaged when inserted in tight spaces, while the transverse tracing drive unit is perfect for measuring the narrow surfaces on crankshafts, EDM parts, and similar components.

• Multi-language support

Choose from 16 display languages: Japanese, English, German, French, Italian, Spanish, Portuguese, Korean, Chinese (simplified and traditional), Czech, Polish, Hungarian, Turkish, Swedish, and Dutch.

• Compatible with many international standards

Compatible with JIS (JIS B 0601-2001, JIS B 0601-1994, JIS B 0601-1982), VDA, ISO-1997, and ANSI standards, and also supports transverse roughness parameters and special parameters.

• Includes evaluation profile and analysis graph profile display functions

Displays calculation results for each sampling length, evaluation profiles, bearing area curves, and amplitude distribution curves in addition to calculation results.

• Multiple data interfaces supplied as standard

Use a USB connection and dedicated data transfer program^* to easily fill an Excel spreadsheet with measurement conditions and results.

^*Download the program for free from Mitutoyo’s website (http://www.mitutoyo.co.jp/eng/) after the end of June, 2012 (tentative).

 

Key Specifications

Measuring range:      X axis:  16.00mm (standard drive unit and retractable drive unit types), 5.6mm (transverse tracing drive unit types)

                                  Detector: 360μm (-200μm to +160μm)

Evaluation profiles:   Primary profile, roughness profile, DF profile, roughness motif profile, waviness motif profile

Analysis graph:         Bearing area curve, amplitude distribution curve

Parameters:              47 customizable types

Cutoff values:            λc = 0.08, 0.25, 0.8, 2.5mm

                                  λs = 2.5, 8μm

Standards:                 JIS (JIS B 0601-2001, JIS B 0601-1994, JIS B 0601-1982), VDA, ISO-1997, ANSI

Print functions:          Measurement conditions, calculation results, calculation results for each sampling length, tolerance, evaluation profiles, display profiles, bearing area curve, amplitude distribution curve, environmental settings

Power supply:            Two-way power supply: Ni-MH battery and AC adapter

External dimensions:  Calculation display unit: 275 (W) × 198 (D) × 109 (H) mm

                                  Drive unit: 115 (W) × 23 (D) × 26 (H) mm (when detector is not attached)

Mass:                        Approximately 1.8kg (total mass of the standard detector, drive unit, and computation display unit)