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TR220 Surface Roughness Tester


TR220 handheld roughness tester is a brand new product of our company. It is always used in the work site, scientific labs and factory metrology rooms. Handheld roughness tester TR220 can test the surface roughness of multiple of machining components.



Model No. TR220
Roughness parameters Ra, Rz, Ry, Rq, Rt, Rp, Rmax, Rv, R3z, RS, RSm, RSk, Rmr, Rpc, Rk, Rpk, Rvk, Mr1, Mr2
Assessed profiles Roughness profile (R)
Primary profile (P)
Measuring system Metric, imperial
Display resolution 0.001 μ m
Data output RS232
Pickup measuring range ±20μ m, ±40μ m, ±80μ m 
Cutoff length (L) 0.25mm / 0.8mm / 2.5mm/Auto
Evaluation length 1~5L  (selectable)
Tracing length ( 1~5)L + 2 L (selectable)
Digital filter RC, PC-RC, Gauss, D-P
Max. driving length 17.5mm/0.71inch
Min. driving length 1.3mm/0.051inch
Pick-up Standard pickup TS100, inductive, Diamond stylus radius 5μm, angle of stylus 90°
Accuracy ≤±10%
Repeapility <6%
Power Li-ion battery rechargeable
Dimensions(mm) 141×56 ×48
Weight(g) 440


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