Cast Iron Angle Plate for Precision Measurement
This cast iron angle plate, made of HT250 material, is used to test perpendicularity and parallelism. It can also serve as a verification standard for 90-degree angles.





Technical Specifications
Overview
High-Precision Cast Iron Angle Plate
Engineered from durable HT250 cast iron, this angle plate serves as a critical verification standard for 90° perpendicularity and parallelism. It provides a stable, rigid platform for holding workpieces at precise angles during milling, drilling, and grinding operations. Designed for toolrooms and quality control departments, it ensures exceptional dimensional stability and vibration dampening for high-accuracy machining and inspection tasks.
Material & Construction
Material Grade
- Construction Features
- Precision-Ground SurfaceVibration DampeningHigh RigidityWear Resistant
Technical Specifications
Precision Grade Table (μm)
| Size (mm) | Perpendicularity (G1/G2/G3) | Measuring Surface Flatness (G1/G2/G3) | Datum Surface Flatness (G1/G2/G3) |
|---|---|---|---|
| 200 × 200 | 8 / 16 / 30 | 4 / 8 / 16 | 6 / 12 / 24 |
| 300 × 200 | 10 / 20 / 40 | 5 / 10 / 20 | 8 / 16 / 30 |
| 300 × 300 | 10 / 20 / 40 | 5 / 10 / 20 | 8 / 16 / 30 |
| 400 × 300 | 12 / 24 / 45 | 6 / 12 / 24 | 10 / 20 / 40 |
| 400 × 400 | 12 / 24 / 45 | 6 / 12 / 24 | 10 / 20 / 40 |
| 500 × 400 | - / 28 / 50 | - / 14 / 28 | - / 24 / 48 |
| 500 × 500 | - / 28 / 50 | - / 14 / 28 | - / 24 / 48 |
| 800 × 600 | - / 35 / 60 | - / 18 / 35 | - / 28 / 55 |
Customization & Options
Customization Options
- Special sizes manufactured to requirement
- Custom design services
- Large size availability
- T-slots can be opened per request
Applications
Key Performance Metrics
- Primary Applications
- Perpendicularity TestingParallelism Verification90° Standard ReferenceMachining FixtureWorkpiece Alignment



