Main functions and features：

1.The machine can meet rockwell and superficial rockwell and plastic hardness test requirements; high test precision ; good repeatability.

2.Test force load, dwell, and unload is automatic, it is avoid the error by manual.

3.The dial reads the hardness value directly, indicator responses sensitively, show the hardness value accurately, the test value is more accurate than national standard.

4.One-time casted molding shell, stable structure and it is not easy to be out of shape. It can work under harsh environment; the shell coating adopted car paint technology with white color. it has strong scratch resistance capability and still look bright as new after use many years.

5.Factory directly supply, we have products develop, design and produce ability, all

the parts provide life time replacement and maintenance service.

Main application：

1. Hardened steel, quenched and tempered steel, annealing steel, bearing steel, strip steel, hardened steel sheet, hard alloy, etc.

2. Galvanized, chrome plating, tin plating, heat treatment of materials and chemical surface treatment of all kinds of thin metallic materials.

3. Pure copper, beryllium bronze, phosphor bronze, malleable cast iron, hard plastic, hard rubber, synthetic resin and friction materials.

Specification：

Model

XHRR-150DT

(Approved by CE certificate, ensure the safety operation of the machine. Certificate No.: GB/1067/3980/12 Issue 1)

Rockwell scale

HRA、HRB、HRC、HRD、HRE、HRF、HRG、HRH、HRK、HRL、HRM、HRR、HR15N、 HR30N、HR45N、HR15T、HR30T、HR45T

Conversion scale

Conversion table

Preliminary test force

10Kg(98.0N)、3Kg(29.42N)

Total test force

60Kg(588N)、100Kg(980N)、150Kg(1471N)， 15Kg(147.1N)、30Kg(294.2N)、45Kg(441.3N)；Tolerance range:±1.0% 

Resolution

0.5HR

Hardness value range

HRA:20-88、HRB:20-100、HRC:20-70、HR15N:70-91、HR30N:42-80

HR45N:20-70、HR15T:73-93、HR30T:43-82、HR45T:12-72

HRE:70-100、HRL:50-115、HRM:50-115、HRR:50-115

Hardness data read

Dial

Loading method

Automatic (Load, Dwell ,Unload)

Dwell time

1-60s

Allowed specimen measurement space 

Maximum height :170mm 

Maximum throat depth:130mm

Size / weight

Instrument size:460*160*660mm（L×W×H）/Net Weight: 85kg

Packing size: 625*430*900mm（L×W×H）/ Gross Weight: 95kg

Power supply

AC220V+5%, 50/60Hz; ( 110V available)

Executive standard

GB/T230.2、ASTM E18、ISO 6508、GB 7407、ASTM D785、JJG112、JJG884

Standard accessories 

Rockwell hardness tester host: 1 set

Diamond rockwell indenter:1 pc

Φ1.588mm,Φ3.175 mm,Φ6.35 mm,Φ12.7mm hard alloy indenter:

each one piece

Standard hardness block: 9 pcs

Large testing table: 1 pc

Medium testing table: 1 pc 

V-shaped testing table: 1 pc, 

Φ1.588 mm diameter steel ball :5 pcs

Dust-proof cover: 1 pc,   Accessory case :1 pc 

Operating instruction :1pc   Quality certificate :1 pc

Hardness conversion table:1pc   Warranty card :1 pc.

Optional accessories

Blocks, Indenters