Purpose
Suitable for grinding the external arcs of drum brake shoe plates and brake shoe assemblies for medium and heavy-duty vehicles.
Product Features
- The system employs a CNC dual-axis numerical control system to handle rough grinding, fine grinding, and spindle machining.
- Coarse grinding is performed using a horizontal grinding wheel, while fine grinding is carried out with a vertical grinding wheel.
- High precision with automated operation for various feed dimensions.
Technical Specifications
| Item | Parameter |
| Horizontal Grinding Head Motor | Power: 15 kW, Speed: ~1800 rpm |
| Coarse Grinding Servo Motor | Power: 2.2 kW, Quantity: 1 unit |
| Vertical Grinding Head Motor | Power: 7.5 kW, Speed: ~2200 rpm |
| Fine Grinding Servo Motor | Power: 1.3 kW, Quantity: 1 unit |
| Die Rotation Motor | Power: 1.2 kW |
| Die Spindle Speed | Range: 0.5–7 rev/min |
| Diamond Grinding Wheel (Electroplated) | Diameter: ∮630 mm (installed on main unit); Diamond grinding strip length: >40 mm |
| Vertical Grinding Head Electroplated Diamond Grinding Wheel | Dimensions: ∮300 mm × 240 mm (installed on main unit); Grinding range: R150–210 mm; Width: 80–220 mm |
| Grinding Wheel Movement Range | For 320 mm grinding diameter, movement range >200 mm; For 420 mm, range ~150 mm |
| Additional Requirements for Large-Volume Single-Product Batches | Configure diamond grinding wheels of different heights (e.g., 240 mm wheel with 220 mm brake pad, or 140 mm wheel with 120 mm brake pad) |
| Spindle Accuracy | External circular runout and perpendicularity ≤0.02 mm |
| Machining Accuracy – Inspection Reference Straightness | ≤0.10 mm (measured on workpiece after grinding without release, covering >80% of effective ground area) |
| Machining Accuracy – Circular Runout | ≤0.15 mm (measured on workpiece after grinding without release, covering >80% of effective ground area) |
| Machining Accuracy – Circular Taper | ≤0.15 mm (measured on workpiece after grinding without release, covering >80% of effective ground area) |
| Note on Machining Accuracy Evaluation | Straightness and external circular runout measurements taken after grinding while workpiece remains secured on machine tool are essential; supplier not responsible for inspection results |
| Coarse Grinding Dust Removal Interface Diameter | ∮140 mm |
| Finishing Grinding Dust Removal Interface Diameter | ∮140 mm |
| External Dimensions | According to actual measurements |
| Total Weight | Approximately 3,300 kg |
Included materials
- 1 copy of the user manual and .
- 1 copy of the certification certificate.
