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| Model RAS : | Model RAB-1 | Model TWIN |
| Automatic load selection with automatic zero setting dial gauge. | Automatic load selection & automatic zero setting dial gauge. Facility for Brinell tests with 187.5 kgf. Load with 2.5 mm Ball indicator, additional load 250 kgf. With 5mm Ball indentor for testing hardness of non- ferrous metals. | Automatic load selection with automatic zero setting dial gauge. |
| Manual operation. | Manual operation. | |
| Diamond holder is guided in a ball cage, which enables testing of small pins having dia. Less than 6 mm (up to 3mm dia.) | ||
| Model RASM (Motorized) : | Model RAB 250 | |
| Similar to 'RAS' but motorized model. Semiautomatic operation for production testing. Drive motor single phase 230 V 50 Cycles. | Similar to 'RAB-1' but of bigger capacity. Diamond holder is guided in a ball cage, which enables testing of small pins having dia less than 6 mm ( up to 3 mm dia.) |
Standard Accessories
| Model | RAS /RASM | RAB-1 / RAB-250 | TWIN |
| Testing table 50mm dia | 1 pc. | 1 pc. | 1 pc. |
| Testing Table 38mm dia with 'V groove for round jobs 6 to 45mm dia. | 1 pc. | 1 pc. | 1 pc. |
| Diamond Indentor 120° | 1 pc. | 1 pc. | 1pc. |
| Stell ball Indentor 1/16" | 1 pc. | 1 pc. | 1 pc. |
| Test Block Rockwell 'C | 1 pc. | 1 pc. | 1 pc. |
| Test Block Rockwell 'B' | 1 pc. | 1 pc. | 1 pc. |
| Test Block Rockwell Superficial 'N' | Nil | Nil | 1 pc. |
| Allen Spanners | 5 pcs | 5 pcs | 5 pcs |
| Clamping Device | 1 pc. | 1 pc. | 1 pc. |
| Dash Pot Oil | 1 Bottle | 1 Bottle | 1 Bottle |
| Rubber bellow for elevating screw protection | 1 pc. | 1 pc. | 1pc. |
| Instruction Manual | 1 Book | 1 Book | 1 Book |
| Brinell Microscope | Nil | 1 pc. | Nil |
| Stell Ball Indentor 2.5mm | Nil | 1 pc. | Nil |
| Test Block HB 2.5/187.5 | Nil | 1 pc. | Nil |
| Stell Ball Indentor 5mm ' | Nil | 1 'pc. -. | Nil |
Technical Data
| Model | Unit | RAS | RASM | RAB-1 | RAB-250 | TWIN |
| Loads | kgf. | 60, 100 150 | 60, 100 150 | 60, 100, 150, 187.5, 250 | 60, 100, 150, 187.5, 250 | 15, 30, 45 (Rockwell Superficial) 60,100,150 (Rockwell) |
| Initial Load | kgf. | 10 | 10 | 10 | 10 | 3 (Rockwell Superficial) 10 (Rockwell) |
| Max. Test Height | mm. | 230 | 230 | 230 | 330 | 330 |
| Depth of Throat | mm. | 133 | 133 | 133 | 150 | 150 |
| Max. depth ot elevating screw below base | mm. | 240 | 240 | 240 | 355 | 355 |
| Size of base (approx.) | mm | 170x430 | 170x430 | 170x430 | 210x474 | 210x474 |
| Machine Height (approx.) | mm | 655 | 655 | 655 | 850 | 850 |
| Nett Weight (approx.) | kg. | 65 | 65 | 65 | 100 | 100 |
Loads & Indentors for 'ARUN' Hardness Testers for Rockwell & Brinell Tests.
| Total load in kgf. (Initial load 10 kgf.) | 60 | 100 | 150 | 187.5 | 250 |
| Indentor | Diamond 120° | Ball 1/16" Ø | Diamond 120° | Ball 2.5 mm Ø | Ball 5mm |
| Test Scales | Rockwell A | Rockwell B | Rockwell C | Brinell,F/D2=30 | Brinell, F/D2 =10 |
| Suitable for | Tests on case hardened stell | Annealed, Ferrous & non ferrous metals | Annealed, hardened & tempered deep case hardened steel |
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Kabnur, Kolhapur, Maharashtra 
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