Made in India
RSNE-250
Automatic Digital Rockwell cum Brinell Hardness Tester
RSNE-250
Motorised digital Rockwell tester (also badged RASNE-250) with loads up to 250 kgf for Brinell testing with a 2.5 mm ball. The automatic load, dwell and unload cycle, 0.1 Rockwell display, thermal printer and USB export are shared with the RSNE; Brinell impressions are measured with the supplied microscope.
The RSNE-250, also known as RASNE-250, is the motorised digital Rockwell cum Brinell hardness tester from Eklavya Techno Solutions, Ichalkaranji, India. It shares the RSNE production-line features, an automatic load, dwell and unload cycle started from the panel, 0.1 Rockwell resolution, High/Good/Low judgement, built-in thermal printer and USB CSV export, and extends the load range to 60, 100, 150, 187.5 and 250 kgf. The three lower loads serve the regular Rockwell scales A to K; the two higher loads are used with the supplied 2.5 mm ball for Brinell scales HBW 2.5/187.5 and HBW 2.5/250 on castings, forgings and softer stock.
As on all ETS Rockwell cum Brinell machines, the Brinell result is not read from the display. The operator selects the Brinell load by hand with the ball indenter, lets the motorised cycle make the indentation, measures the impression diameter with the supplied Brinell microscope and reads the HBW value from the tables. The RSNE-250 offers 295 mm test height and 148 mm throat depth, weighs about 85 kg, runs on single-phase 230 V and complies with IS 1586 (Part 2), ASTM E18, ISO 6508-2 and IS 1500 (Part 2). Rockwell C, Rockwell B and HBW 2.5/187.5 test blocks are included.
Major load (total test force): 588.4, 980.7, 1471, 1839, 2452 N (60, 100, 150, 187.5, 250 kgf)
IS 1586 (Part 2) – Rockwell hardness test – verification and calibration of testing machines
ASTM E18 – Standard test methods for Rockwell hardness of metallic materials
ISO 6508-2 – Metallic materials – Rockwell hardness test – verification and calibration of testing machines and indenters
IS 1500 (Part 2) – Brinell hardness test – verification and calibration of testing machines
RSNE series (motorised digital): models compared side by side, current model highlighted.
| Parameter | RSNE | RSNE-250 | RSNE-Twin |
|---|---|---|---|
| Type | Digital Rockwell, motorised | Digital Rockwell cum Brinell, motorised | Digital Rockwell cum Superficial, motorised |
| Major load (total test force) | 588.4, 980.7, 1471 N (60, 100, 150 kgf) | 588.4, 980.7, 1471, 1839, 2452 N (60, 100, 150, 187.5, 250 kgf) | 147.1, 294.2, 441.3, 588.4, 980.7, 1471 N (15, 30, 45, 60, 100, 150 kgf) |
| Minor load (preliminary force) | 98.07 N (10 kgf) | 98.07 N (10 kgf) | 29.42, 98.07 N (3, 10 kgf) |
| Scales | HRA, HRB, HRC, HRD, HRE, HRF, HRG, HRH, HRK | Rockwell A to K; Brinell HBW 2.5/187.5, 2.5/250 | Rockwell A to K; Superficial 15N, 30N, 45N, 15T, 30T, 45T |
| Resolution | 0.1 Rockwell | 0.1 Rockwell | 0.1 Rockwell / 0.1 Rockwell Superficial |
| Display | Digital LCD | Digital LCD | Digital LCD |
| Loading cycle | Automatic load / dwell / unload | Automatic load / dwell / unload | Automatic load / dwell / unload |
| Output | Built-in thermal printer, USB (CSV), PC software | Built-in thermal printer, USB (CSV), PC software | Built-in thermal printer, USB (CSV), PC software |
| Max. test height | 295 mm | 295 mm | 295 mm |
| Depth of throat | 148 mm | 148 mm | 148 mm |
| Net weight (approx.) | 80 kg | 85 kg | 85 kg |
| Machine dimensions (L × W × H) | L-570 × W-155 × H-780 mm | L-570 × W-155 × H-780 mm | L-570 × W-155 × H-780 mm |
| Power supply | 230 V AC, 50 Hz, 1 phase (1 A fuse) | 230 V AC, 50 Hz, 1 phase (1 A fuse) | 230 V AC, 50 Hz, 1 phase (1 A fuse) |
| Standard tables | 50 mm dia flat table; 38 mm dia table with V-groove for 6–45 mm round jobs | 50 mm dia flat table; 38 mm dia table with V-groove for 6–45 mm round jobs | 50 mm dia flat table; 38 mm dia table with V-groove for 6–45 mm round jobs |
| Indenters supplied | Diamond indenter Rockwell RA; 1/16" ball indenter | Diamond indenter Rockwell RA; 1/16" ball; 2.5 mm ball | Diamond indenters Rockwell RA and Rockwell SF; 1/16" ball |
| Test blocks supplied | Rockwell C and Rockwell B test blocks | Rockwell C, Rockwell B and HBW 2.5/187.5 test blocks | Rockwell C, Rockwell B and HR 30 N test blocks |
| Optional | 5 mm step inserts; jack rest for long and heavy jobs; PC software | 5 mm step inserts; jack rest for long and heavy jobs; PC software | 5 mm step inserts; jack rest for long and heavy jobs; PC software |
| Brinell testing | — | Brinell 187.5 / 250 kgf selected manually with the matching ball indenter; impression diameter measured with the supplied Brinell microscope (no Brinell scale on the display) | — |
Choose the RSNE-250 when the same bench has to test hardened and tempered steel by Rockwell and also softer, coarser materials such as grey or ductile iron castings, forgings, annealed steel or thick non-ferrous stock by Brinell. The 187.5 and 250 kgf loads and 2.5 mm ball give the Brinell capability; the plain RSNE stops at 150 kgf and does Rockwell only.
Yes, the load, dwell and unload run by motor for both Rockwell and Brinell loads; only the load selection is done by hand. The difference is in the reading: Rockwell values appear on the panel to 0.1 units, whereas the Brinell impression must be measured with the supplied microscope and converted with the standard tables, because there is no Brinell scale on the display.
Rockwell readings are shown to 0.1 units with a High, Good or Low indication against the limits set for the batch. Every result is stored with date, time and scale and can be printed on the built-in thermal printer, exported as CSV over USB or reported through the PC software. Brinell values measured by microscope are recorded manually.
The RASN-250-D has the same load range and digital panel but a hand-operated loading lever. The RSNE-250 adds the motorised cycle for production use. The RSNE-250-T replaces the keypad with a capacitive touch screen and offers USB export and PC software, and the RASNB-TSFA adds automatic test-force selection on top of that.
The Rockwell function is built and verified to IS 1586 (Part 2), ASTM E18 and ISO 6508-2 and the Brinell function to IS 1500 (Part 2). Certified Rockwell C, Rockwell B and HBW 2.5/187.5 test blocks are supplied for verification at installation and routine checks, and ETS provides calibration with traceable certificates across India.
