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Hardness & Surface Roughness Testers

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Surface Roughness Gages

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SR400

SR400 Surface Roughness Tester 21001

SR300 - SR400 Surface Roughness Testers
Surface Roughness Tester

The Starrett SR400 Surface Roughness Tester is a full-featured, powerful and versatile surface roughness tester. It can be used either freestanding or bench mounted with fixturing for batch measurement and laboratory applications. Display & Traverse unit; Pick-up & Diamond Stylus; Calibration Std; Manual; and Case. 25mm travel, 360um range, 5nm resolution, Advanced Parameter Set (ISO 4287, ISO 13565, ASME, JIS)

Videos
Features
Specifications
Accessories
Downloads
Product Testimonials
California Prop 65
Contact Starrett

Videos

Features

  • Large screen display
  • Unique stylus lift mechanism for total flexibility
  • Many application specific parameter options
  • Comprehensive selection optional accessories and pickups
  • Long traverse length and extended pickup reach
  • Stores of up to 100 readings

Specifications

  • Made in America: No
  • Accuracy (in): 2% of reading + LSD µm
  • Cutoff Lengths: 0.01, 0.03, 0.3" / 0.25, 0.8, 2.5, 8mm
  • Filter: 2CR or gaussian (selectable)
  • Measuring Range: 400/100/10µm
  • Pick-up Stylus: Inductive
  • Roughness Parameter: Ra, Rz, Rt, Rp, Rmr, Rpc, Rsm, Rz1max, Rsk, Rda
  • Tracer Tip: Diamond stylus Tip radius 200µ" / 5µm unless otherwise specified
  • Tracing Length: 0.01-0.89/ 0.25-25.0mm
  • Tracing Speed: 0.04"/sec, 1mm/sec

Accessories

Downloads

    Surface Roughness Testers - SR160, SR300, SR400 (Bulletin 2104)

    Brochure stating the details and features of the of the different roughness testers

    Starrett Electronic Precision Hand Tools (Bulletin 590)

    Starrett’s expanded range of electronic precision tools includes more than 100 new micrometers featuring advanced electronics, larger displays, enhanced ergonomics, longer battery life, IP67 rating and more. The product range includes Micrometers, Calipers, Height Gages, Depth Gages, Indicators, Bore Gages and Testers.

Product Testimonials

    Write a product review
    • Eric F. (10/6/2020)
      Great Product. We use this daily in the shop & at inspection and everyone seems to like it. It repeats very well and the adjustable stylus can get into the hard to reach areas on parts. With about 5 min of training, anyone can use it. Plus the battery life is incredible, only had to charge it once in the last year.

California Proposition 65 Warning

    WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov