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Chotest Technology Inc.
SJ5700E-PR SJ5700E-P SJ5700E-R

SJ5700E-PR SJ5700E-P SJ5700E-R

Product catalog summary

Overview

The document presents technical specifications and applications for the SJ5700E-PR and SJ5718 series economic profilometers, designed for contact measurement of surface roughness and contour profiles. These instruments are suitable for various industrial parts including metallurgy components, car wheels, die casting parts, bearings, mechanical parts, threaded parts, battery housings, phone housings, machining parts, and gearbox pulleys.

Applications

Metallurgy parts
Car wheels
Die casting parts
Bearings
Mechanical parts
Threaded parts
Battery housings
Phone housings
Machining parts
Gearbox pulleys

Model Variants

SJ5700E-PR: Economic profilometer with contour measurement (SJ5700E-P) and roughness measurement (SJ5700E-R) options.
SJ5718 Series: Includes SJ5718-PR, SJ5718-P (contour measurement), and SJ5718-R (roughness measurement) models.

Key Technical Specifications

Parameter	Value / Range
Measuring Range (X axis)	0 to 100 mm
Travel Range (Z axis)	0 to 300 mm
Indication Error	±30 μm
Moving Speed	0 to 20 mm/s (standard), 0.05 to 5 mm/s (scanning)
Resolution	0.001 μm
Measuring Accuracy	±(0.6 + 0.02L) μm (L in mm), ±(0.6 + 0.05H) μm (H in mm), ≤ ±(1.2 + R/15) μm (R in mm)
Angle Error	≤ ±1'
Max Slope	Uphill 77°, Downhill 88°
Straightness	≤ 0.5 μm / 100 mm
Scanning Force	30 mN (standard), 1 mN (sensor)
Sensor Type	Railless sensor
Ra Range	0.1 μm to 64 μm
Measurement Residual	≤ ±(5 nm + 2.5% A) μm, where A is Ra value
Repeatability	≤ 1 nm
Scanning Speed	0.05 to 0.5 mm/s
Filter Types	2RC filtering, Gaussian filtering, Zero phase filtering
Sampling Length	Selectable: 0.008, 0.08, 0.25, 0.8, 2.5, 8.0, or 25 mm
Evaluation Length	Auto calculation
Film Thickness Measurement	Up to 60 μm or less, with 2% H accuracy (H = measuring height in μm)
Dimensions (L×W×H)	600 × 350 × 890 mm
Weight	115 kg

Measurement Parameters and Functions

The instruments support a comprehensive set of roughness and profile parameters, including but not limited to:

Core Roughness: Rk, Rpk, Rvk, Rpkx, Rvkx, Mr1, Mr2, A1, A2, Vo
Profile Parameters: Pa, Pq, Pt, Pz, Pp, Pv, PSm, Psk, Pku, Pdq, Pdc, Pc, PPc, Pmr, Rad, PzJ, Pmax
Waviness of Profile: Wa, Wq, Wt, Wz, Wp, Wv, WSm, Wsk, Wku, Wdq, Wdc, Wmr, Wpc, Wc
Motif Parameters: R, AR, W, AW, Rx, Wx, Wte
Roughness Parameters: Rp, Rv, Rz, Rc, Rt, Ra, Rq, Rsk, Rku, RSm, RPc, Rdq, Rdc, Rmr, Rmax, Rpm, tp, Htp, Pc, Rda, Ry, Sm, S, Rpc, RzJ

Features and Advantages

Long arm design suitable for roughness measurement in deep holes.
Easy conversion between profile and roughness functions.
Economic pricing targeting professional contact measurement needs.

Summary

The SJ5700E-PR and SJ5718 series profilometers provide precise, reliable, and versatile surface roughness and contour measurement solutions for a wide range of industrial applications. Their high resolution, accuracy, and comprehensive parameter support make them suitable for quality control and research in metallurgy, automotive, electronics, and mechanical manufacturing sectors.

Catalog excerpts

Economic Profilometers SJ5700E-PR SJ5700-P SJ5700-R Economic Prof ilometers Contact Measurement Instruments Parameters Model No. Travel Range Contour Measurement(SJ5718-P) Measuring Range Long arm is suitable for roughness measurement in deep hole Indication Error Standard Ball Angle error Moving speed Scanning Speed Scanning Force Easy conversion between profile and roughness function Measuring Range Sensor Type Scanning Force Resolution Indication Error Scanning Speed Measurement Residual ≤0.005μm R Roughness: Rp,Rv,Rz,Rc,Rt,Ra,Rq,Rsk,Rku,RSm,RPc,Rdq, Rdc,Rmr, Rmax, Rpm,tp,Htp,Pc,Rda,Ry,Sm,S,Rpc,RzJ； Key roughness: Rcore: Rk,Rpk,Rvk,Rpkx,Rvkx,Mr1,Mr2,A1,A2,Vo； Mechanical part Metallurgy part Roughness Parameters Proﬁle: Pa,Pq,Pt,Pz,Pp,Pv,PSm,Psk,Pku,Pdq,Pdc,Pc,PPc,Pmr,Rad,PzJ,Pmax； Waviness of Proﬁle: Wa,Wq,Wt,Wz,Wp,Wv,WSm,Wsk,Wku,Wdq,Wdc, Wmr,Wpc,Wc； Motif: R,AR,W,AW,Rx,Wx,Wte； Thread part Battery housing Phone housing Machining part Gearbox pulley 2RC ﬁltering, Gaussian ﬁltering and Zero phase ﬁltering Sampling Length Evaluation Length Auto calculation Film Thickness Measurement

Open the catalog to page 1

Economic Profilometers SJ5718 Series Economic Prof ilometers Contact Measurement Instruments Parameters Model No. Travel Range Contour Measurement(SJ5700E-P) Measuring Range Long arm is suitable for roughness measurement in deep hole Indication Error Standard Ball Angle error Moving speed Scanning Speed Scanning Force Easy conversion between profile and roughness function Measuring Range Sensor Type Scanning Force Resolution Indication Error Scanning Speed Measurement Residual ≤0.005μm R Roughness: Rp,Rv,Rz,Rc,Rt,Ra,Rq,Rsk,Rku,RSm,RPc,Rdq, Rdc,Rmr, Rmax, Rpm,tp,Htp,Pc,Rda,Ry,Sm,S,Rpc,RzJ； Key...

Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.

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