Nexus 7700 G2 Universal Hardness Tester / Universal Hardness Testing Machine

The classic with swivel head

In the group of Universal hardness testing machines / universal hardness testers The NEXUS 7700 is the world's most cost-effective solution for hardness testing according to Vickers, Brinell, Rockwell to be carried out in accordance with standards and professionally. Since this machine is built thousands of times, the quality and, not least, the price are right.

In terms of technology, this universal hardness testing machine continues to rely on the swivel mechanism (switching between indenter / lens) that has been tried and tested since 1960: This makes it the most frequently used universal hardness tester in this device type and the world's best price-quality ratio. Even in the basic configuration, this universal hardness tester includes:

  • force measuring cell in a closed control loop
  • 18 MP USB camera, excellent hardness testing software
  • IMPRESSIONS including hardness impression image analysis
  • internal WIN10 PC and touchscreen monitor
  • Result export PDF test certificate etc.
  • LED lighting, Brinell with ring light

The machine is universally suitable for all classic metal hardness testing methods (test loads 0,5 – 250 kg). Alternative: Universal hardness tester with clamping cap up to 3000 kp. Thanks to its modern, high-quality equipment, this machine is the replacement for the now outdated ground glass hardness testers. For an even more precise Rockwell measurement, this hardness testing machine is equipped with a clamping cap that allows the workpieces to be clamped. IMPRESSIONS – is the name of the groundbreaking control and evaluation software of the INNOVATEST hardness testing machines. 

The software combines

  • automatic test procedure including image analysis
    (automatic test impression measurement Vickers Brinell)
  • Test certificate (format can be changed independently) as PDF
  • Result archiving including test impression image
  • Motor swivel body indenter / lens
  • manual or automatic focusing
  • Conversion: Hardness scales / Tensile strength ISO / ASTM
  • optional control XY cross table
  • WLAN LAN result export: CSV, Word, Excel
hardness testing machine NEXUS 7700 Vickers Brinell Rockwell
hardness testing machine NEXUS 7700 Vickers Brinell Rockwell

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Photos NEXUS 7700 – Applications

brake disc inspection
rack inspection
Casting inspection
Hardness Testing

Features NEXUS 7700

The universal hardness testing machine NEXUS 7700 can be used for all standard hardness tests according to Brinell, Vickers, Rockwell, Super-Rockwell and Knoop. In addition, ball pressure hardness tests on Plastic and cupping measurement methods HVT and HBT are possible. This hardness tester covers all hardness tests according to DIN, ISO, ASTM and JIS with a test load range from 0,5 kgf (4,9 N) to 250 kgf (2,45 kN). Current technology: The test loads are applied via a load cell and corresponding control electronics with force feedback. The device is operated using the high-quality IMPRESSIONS testing software. All functions of the device are controlled using this user interface. The evaluation of the optical testing methods Vickers and Brinell is carried out using the included automatic software image analysis. This ensures fast and accurate evaluation with no operator influence.

Technical features of the universal hardness tester NEXUS 7700

hardness scales

Brinell, Vickers, Rockwell, Super-Rockwell, Knoop, Vickers cupping (HVT), Brinell cupping (HBT), ball pressure

test load application

Load cell in closed loop with force feedback

test load range kgf

0.5 to 250 kgf (4.9 N to 2.45 kN)

test loads

0.5 | 1 | 2 | 2.5 | 3 | 4 | 5 | 6.25 | 10 | 15 | 15.625 | 20 | 25 | 30 | 31.25 | 50 | 60 | 62.5 | 100 | 120 | 125 | 150 | 187.5 | 250

Brinell methods
Brinell – balls HB Ø

HB1
HB2.5
HB5
HB10
HBT

: 1 | 2.5 | 5 | 10 | 30 kgf

: 6.25 | 15.625 | 31.25 | 62.5 | 187.5 kgf

: 25 | 62.5 | 125 | 250 kgf

: 100 | 250 kgf

: 5 | 250 kgf

Vickers methods

HV

HVT

: 0.5 | 1 | 2 | 3 | 4 | 5 | 10 | 20 | 30 | 50 | 100 | 120 kgf

: 50 | 100 kgf

Rockwell methods

A | B | C | D | E | F | G | H | K | L | M | P | R | S | V | Bm | Fm | 15N | 30N | 45N | 15T | 30T | 45T | 15W | 30W | 45W | 15X | 30X | 45X | 15Y | 30Y | 45Y | 30TM | HMR 5/25

indenter
(Optional)

Brinell balls Ø
Vickers diamond pyramid
Rockwell Diamond Cone
Rockwell balls Ø

: 1 | 2.5 | 5 | 10

: 136 °

: 120 °

: 1/16″ | 1/8″ | 1/4″ | 1/2″

test cycle

Motorized, automatic, evaluation via 5 MP CCD camera, zoom optics

Display

High-resolution, embedded industrial LCD touchscreen 
Optional: table monitor LCD (standard monitor) 
Optional: Table monitor LCD with touchscreen function
Optional: High-resolution table monitor with touchscreen function

PC technology

Embedded high-quality PC with 2 hard drives
Optional: External, high-quality PC

device control

IMPRESSIONS™, advanced hardness testing software including expansion options including the following functions: manual tests, automatic tests, automatic hardness test impression measurement (image processing), impression magnification (zoom), conversion to other hardness scales, result storage, test certificate printout on any WINDOWS printer, test method configuration and storage, machine parameters can be saved, graphical user interface

test standards

Meets and exceeds all hardness testing standards according to ISO, ASTM, JIS (Nadcap)

test load holding time

0.1 - 255 seconds

Connections

USB-2 (4 pieces), UTP RJ45, LAN, W-LAN

test piece dimensions

Vertical test room height
Horizontal projection

320mm
: 220 mm (machine body to indenter center

test piece geometry

Flat, curved surfaces: external and internal curvature with guide bracket (optional)

Operating temperature

10°C to 35°C without condensation

machine dimensions

Width 300 mm x Depth 685 mm x Height 1.095 mm

machine weight

178 kg

Power Supply

Automatic voltage adjustment 100 / 240 V AC | 50 / 60Hz | one phase

standard scope of delivery

  • lens for 95x magnification
  • lens for 150x magnification
  • clamping cap
  • test table ø 80 mm
  • power cord
  • INNOVATEST® certificate
  • Manual

Special accessories

  • Rockwell C indenter
  • Vickers indenter
  • Brinell 2,5 mm indenter
  • test table ø 200mm
  • prism support ø 80 mm
  • Indenter + hardness comparison plates with DKD- / Thank you – Calibration certificate
  • Extended indenter Vickers
  • Additional test tables and XY cross tablesAdditional lenses on request
  • precision clamping tables and prism supports
  • Software solutions for special application areas

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