ga('set', 'userId', {{USER_ID}}); // Set the user ID using signed-in user_id. SRG-4500

Phase II Surface Roughness Tester

SRG  -  4000


srg 4000 kit


The latest in state-of-the-art surface roughness testers, the SRG-4000 is designed with the shop environment in mind. These surface roughness testers are distinguished by a high level of accuracy, multiple parameters and simplicity of operation. Extremely sensitive and highly accurate readings from this Phase II surface roughness tester are offered via multiple surface roughness parameters, Ra, Rq(Rms), Rt and Rz.


The diamond stylus is hypersensitive and sophisticated enough to allow for a .001 (um) micron display resolution. The SRG-4000 surface roughness testers utilize an easy interface to allow for changes of in/mm (uin/um), cutoff length, sampling length, parameters, level of test (stylus position), digital filters and more! Measurement results are displayed as large characters on the LCD screen for easy recognition.


Battery powered portability allows the SRH-4000 surface roughness testers to mobilize productivity throughout the shop.


Optional accessories available for the SRG-4000 furface roughness testers include:

-2um stylus

-Extension rod


-NIST certified surface roughness standard



• Menu driven operating system

• 4 different roughness parameters

• Inside/Outside diameters

• Stylus position indicator

• RS 232 output to printer/PC

•Extended memory functions


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Roughness parameterRa, Rz, Rq (RMS), Rt
Assessed profilesPrimary profile (p),    Roughness profile (R) tp curve (Mr)
Conformance StandardsISO/DIN/JIS/ANSI
Measuring SystemMetric µm, Imperial µinch
Display Resolution+/-20µm = 0.001µm   +/-40µm = +/-80µm = 0.004µm
Display RangeRa,Rq:0.005µm up to 16µm   Rz, Rt:0.02µm up to 160µm
Pick up Measuring Range+/-80µm
Sensor Specifications5µm Diamond Tip Stylus
Sensor Angle90°
Contact Force4mN (0.4gf)
Display features

Stylus position sensor

Battery level indicator

Direct display of parameters

Direct printing

Auto-off with auto store

Data outputRS 232 to printer/PC
Cut-off lengths0.25mm/0.8mm/2.5mm
Tracing length Lt1.3mm - 17.5mm
Digital filterRC, PC-RC, GUASSIAN, D-P
Traverse LengthSelectable 1,3 and 5
PowerLi-lon battery
Working temperature5-40 degrees C.
Dimensions139mm x 56mm x 48mm
Optional Accessories: 
SRG4000-050Precision Support Stand
SRG4000-110Stylus Extension
SRG4000-700Calibrated Reference Standard

724-368-8006  *  Fax 724-368-8005


srg 4000 kit