EW-150 Series combines micro/macro hardness scales (Vickers, Knoop, Brinell) with a closed-loop system and force feedback. It supports very low loads (for micro-indentation) up to higher forces needed for tougher materials, with a highly accurate, digital readout of the indentation and hardness. Equipped with programmable test cycles, built-in conversions between scales, and compliance with international hardness standards, it’s suitable for metallographic labs and production environments.

EW-150 Series Premium Multi-Scale Hardness Tester (Micro/Macro Vickers, Knoop & Brinell)

Take your hardness testing to the next level with EW-4000 Series. Choose your force, pick your scale, and let the automatic turret and precise optics take over. Whether inspecting tiny indentations or larger Brinell impressions, the load-cell, closed-loop feedback, and robust stage ensure every test is consistent. Add in video display, data output, and optional motorised stages—this tester makes hard work easier.

EW-150 Series Premium Multi-Scale Hardness Tester (Macro Vickers, Knoop & Brinell)

Features

01
Closed-Loop Load-Cell & Force Feedback

Ensures accurate forces are applied, improving consistency and reducing variation in hardness values.

02
Multiple Hardness Scales & Load Ranges

Supports Vickers, Knoop, Brinell; loads from micro-force (e.g. 20 gf) up to macro (50 kgf) depending on model.

03
Automatic Turret with Multiple Objectives/Indenters

Allows switching without manual realignment; supports micro & macro measurements efficiently.

04
Sturdy Optics & Video Measurement System

Digital eyepiece (15×), objectives (5×,10×,20× etc.), optional CCD systems for video / filar measurement to improve readability.

05
Data Output & Built-in Printer

Includes built-in thermal printer, RS-232 output; menu driven operation with display of hardness values, diagonals, statistics.

Overview

EW-150 Series Premium Multi-Scale Hardness Tester (Macro Vickers, Knoop & Brinell)
Specification ItemUnitEW-4000 Series Typical Values
Test Force / Load Range VariantsEW-4300: Vickers/Knoop 1-30 kgf; EW-4301: Brinell 1-31.25 kgf; EW-4302: Macro Vickers/Knoop 300 gf-30 kgf; EW-4303: Micro/Macro Vickers/Knoop 20 gf-30 kgf; EW-4304: Micro/Macro Vickers/Knoop/Brinell 20 gf-31.25 kgf; EW-4500 etc. up to 50-62.5 kgf. 
IndentersVickers 136°, Knoop 172.5°×130°, Brinell 1 & 2.5 mm 
Objectives5×, 10×, 20× standard; optional 40×, 60× 
EyepieceElectronic eyepiece microscope 15× magnification
Stage OptionsManual X-Y; Motorised X-Y; Motorised X-Y-Z; optional video CCD systems 
Display / OutputBuilt-in thermal printer; RS-232 bidirectional; 5-digit hardness value; menu for scale, load, date/time etc. 
Accuracy< ±1 % for forces from about 100 gf to max; < ±1.5 % for forces below 100 gf. 
Display Resolution0.1 units for HV, HK, HB 
Dwell Time SettingsecondsDefault 10 s; user-defined 1-60 s 
Capacity (Specimen Size)mmVertical specimen height up to 160 mm; horizontal reach 135 mm from center. 
Stage TravelmmStage 100 × 100 mm travel 20 × 20 mm reading 0.01 mm
Light SourceHalogen 12 V, 30 W with dimmable control; green filter included
Operating Conditions°C / %RH5-40 °C; Humidity 10-90 % non-condensing 
Dimensionsmm220 × 540 × 650 mm
Weightkg51 kg 
Power Supply110/220 V, 50/60 Hz, single phase