Automotive Coating High-Low Temperature Gravelometer Testing Machine | OEM Supplier China
Get a quote：
Whats/App: +86 156 1874 6768
Web: standard-groups.com
Features
High- and low-temperature integrated testing for realistic environmental simulation
Multifunctional design supporting coatings, plastics, and glass materials
Precise control of impact angle, pressure, temperature, and spray parameters
3D adjustable impact platform for complex and irregular samples
Stable compressed air system ensuring repeatable test conditions
Robust steel chamber structure with excellent vibration and wear resistance
Parameters
| Item | Specification |
|---|---|
| Test environment | Temperature 5–35 °C, relative humidity ≤85% RH |
| Working pressure range | 0–5.0 kgf/cm² (adjustable), max up to 8.0 kgf/cm² |
| Compressed air pipe diameter | ≥19 mm |
| Air tank volume | 180 L (maintains 400 kPa for ≥10 s) |
| Feeding method | Automatic feeding, adjustable speed |
| VDA spray gun diameter | 30.0 ± 0.5 mm |
| SAE spray gun diameter | 52.6 ± 0.5 mm |
| Working time | 0–999 s adjustable |
| Vibration time | 0–999 s adjustable |
| Cycle count | 0–99 cycles |
| Impact angle adjustment | 3D adjustable test table, 0–180°, with digital angle display |
| Impact window size | 300 × 300 mm (adjustable support, sample thickness ≤30 mm) |
| Chamber dimensions | Approx. 1800 × 1000 × 1200 mm |
| Chamber structure | ≥6 mm steel plate with coating; 10 mm steel impact window |
| Impact media | 4–5 mm angular steel grit (61–65 HRC), 8–16 mm terrazzo, or JIS A5001 stones |
| Test pressure | 100 ± 5 kPa, 200 ± 10 kPa |
| Test cycles | 1–5 cycles |
| Spray duration | 8–12 s / 500 g or 30–35 s / 2000 g |
| Spray angle | 54° ± 1° (optional 90° ± 1°) |
| Spray distance | 10–500 mm adjustable |
| Sample size | 80 × 80 mm or 200 × 100 mm |
| Low temperature range | −20 °C to −70 °C (settable) |
| High temperature range | Ambient to 150 °C (settable) |
| Pressure range | 0–1 MPa adjustable |
| Independent temperature chamber | −40 °C to 100 °C |
| Noise level | ≤120 dBA (hearing protection required) |
| Operation mode | Continuous operation |
| Test media | Gravel, sand, steel shot, iron shot |
| Feeding rate | Adjustable via electromagnetic vibration feeder |
| Airflow control | Built-in air storage ensures stable pressure and flow |
Accessories
(1) VDA standard spray gun
(2) SAE standard spray gun
(3) 3D adjustable sample holder
(4) Electromagnetic vibration feeding system
(5) High-precision angle display device
Test Procedures
Power on the equipment and allow it to preheat to the preset temperature (approximately 15–30 minutes).
Place the prepared sample into the test chamber and securely close the chamber door.
Start the test program; the system automatically controls temperature, pressure release, and aggregate impact.
Monitor temperature and pressure parameters via the control panel to ensure stable operation throughout the test.
Maintenance Information
After testing, remove the sample once the equipment stops automatically.
Record test parameters such as impact cycles, temperature, and pressure for result evaluation.
Clean the test chamber and spray gun tube to remove residual aggregate.
Regularly inspect key components to ensure stable performance for subsequent tests.
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