SUNTES DB-3020A Pneumatic Disc Brake
Customer: What is this product used for?
KAYO: Compare the disc size and operating conditions with the values below to select the correct SUNTES hydraulic or pneumatic disc brake.
Customer: Which specifications should I compare?
KAYO: Check the model-specific values below. Where a group has several variants, each column or row retains its own configuration. Lettered dimensions refer to the matching product drawing; a blank or dash does not state a value.
| Specification group 1 | ||||
|---|---|---|---|---|
| Operating air pressure (MPa) | 0.03–0.7※1 | |||
| Applicable disc outside diameter (mm) | φ200–∞ | |||
| Disc thickness (mm) | 20 | |||
| Effective braking radius (m) | r = ((Disc diameter)/2 －31 ) / 1000 | |||
| Pad model | DB-0433 | |||
| Usable pad wear allowance (mm) | 7 | |||
| Pad friction coefficient (μ) | Dynamic: 0.3 (0.38) Static: 0.15 (0.30)※2 | |||
| Lever ratio | 1.83 | |||
| Mass (kg) | Approx. 8.5 | |||
| Specification group 2 | ||||
| Model | DB-3020A-2 | DB-3020A-3 | DB-3020A-4 | DB-3020A-5 |
| Chamber size (inch) | 2 | 3 | 4 | 5 |
| Dimension X (mm) | 248 | 255 | 255 | 271 |
| Dimension Y (mm) | 235 | 252 | 264 | 281 |
| Dimension Z (φ) | 84 | 118 | 141.5 | 176.5 |
| Cylinder area (cm2) | 16 | 45 | 60 | 110 |
Customer: Are there important operating notes?
KAYO: The minimum operating pressure is a reference value and can vary with individual sliding resistance. Bed in new pads to obtain the required braking torque. The stated friction coefficients apply after bedding-in. Values in parentheses for pad friction refer to high-friction pads.
Customer: How do I choose the correct version?
KAYO: Match the complete model, disc dimensions, mounting arrangement and operating duty. Check the required torque, speed, control pressure or electrical supply against the actual application.
Customer: What should I send for an enquiry?
KAYO: Send the model or nameplate photo, quantity, existing drawing, installation dimensions and operating conditions. For a replacement part, include the full brake or clamper code and photos of the existing component so that fit and configuration can be checked.