Rockwell hardness tester HR-45A

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I. Product Overview
The HR-45A surface Rockwell hardness tester is a precision mechanical hardness-testing instrument that applies force via a mechanical lever and weight-loading system. The instrument emphasizes control of ambient temperature and humidity and standardized specimen preparation, making it suitable for laboratories and production lines requiring high stability and for precise measurement of surface hardness on metallic materials.

II. Detailed Specifications
Initial test force: 29.42 N (3 kgf)
Total test forces available: 147.1 N (15 kgf), 294.2 N (30 kgf), 441.3 N (45 kgf)
Indenter types: diamond conical (α = 120°, tip radius R = 0.2 mm) and steel ball (diameter Φ1.588 mm)
Maximum specimen height: 100 mm (with lead screw guard) / 170 mm (without guard)
Distance from indentation center to machine wall: 128 mm
External dimensions (W×D×H): 500×225×640 mm
Net weight: 60 kg
Standards: GB/T 230, ISO 6508, ASTM E18

III. Basic Configuration
1. Rockwell hardness tester — Unit: piece — Quantity: 1 — Remarks: HR-45A
2. Large flat workbench — Unit: piece — Quantity: 1
3. Small flat workbench — Unit: piece — Quantity: 1
4. V-shaped workbench — Unit: piece — Quantity: 1
5. Surface diamond conical indenter — Unit: piece — Quantity: 1 — Remarks: 120°
6. Rockwell B indenter — Unit: piece — Quantity: 1 — Remarks: Φ1.588 mm
7. Surface Rockwell hardness block — Unit: block — Quantity: 1 — Remarks: 71-82 HR30T
8. Surface Rockwell hardness block — Unit: block — Quantity: 1 — Remarks: 75-80 HR30N
9. Surface Rockwell hardness block — Unit: block — Quantity: 1 — Remarks: 42-50 HR30N
10. Surface Rockwell hardness block — Unit: block — Quantity: 1 — Remarks: 88-91 HR15N
11. Small screwdriver — Unit: piece — Quantity: 1
12. Large screwdriver — Unit: piece — Quantity: 1
13. Dust cover — Unit: piece — Quantity: 1
14. Spirit level — Unit: piece — Quantity: 1
15. Accessory box — Unit: piece — Quantity: 1
16. User manual — Unit: copy — Quantity: 1
17. Certificate of conformity — Unit: copy — Quantity: 1
18. Packing list — Unit: copy — Quantity: 1

IV. Features / Technical specifications

• Drive method: mechanical lever and weight system providing precise and stable force application.
• Application: surface Rockwell hardness testing of metallic materials for laboratory and production use.
• Available total test forces: 15 kgf / 30 kgf / 45 kgf (147.1 N, 294.2 N, 441.3 N).
• Initial test force: 3 kgf (29.42 N).
• Indenter options: diamond conical (120°, R = 0.2 mm) and steel ball (Φ1.588 mm).
• Maximum specimen height: 100 mm (with guard) / 170 mm (without guard).
• Indentation centre to machine wall distance: 128 mm for convenient sample positioning.
• Dimensions and weight: 500×225×640 mm; net weight approximately 60 kg.
• Standards: compliant with GB/T 230, ISO 6508, ASTM E18.