SUNTES DB-5244AF Spring-Applied, Air-Released Hydraulic Booster
Product Overview
The SUNTES DB-5244AF is a hydraulic pressure generator with spring actuation and pneumatic release. Spring force drives the hydraulic side; compressed air is used to release the mechanism. This operating sequence distinguishes it from the ordinary air-applied DB-32xxA booster configurations.
The unit is intended to be selected together with the connected hydraulic brake and the air-control arrangement. Its release-air specification is an actuator limit, while the generated hydraulic pressure must be assessed from the model-specific pressure characteristic.
Operation and Performance
The specified master cylinder is DB-2204MS-01. Hydraulic displacement is 6.9 cm³, and the assembly mass is 10 kg. The maximum release-air pressure is 0.7 MPa. The listed operating fluid is DOT3-equivalent brake fluid.
A 6.9 cm³ displacement must cover the volume required by the connected brake at its intended operating stroke. The release-air rating should not be substituted for a hydraulic output-pressure rating. Check the pressure characteristic and the brake requirements independently.
Detailed Specifications
| Technical Specifications | |
|---|---|
| Master cylinder model | DB-2204MS-01 |
| Operating fluid | Brake fluid (DOT3 equivalent) |
| Discharge volume (cm3) | 6.9 |
| Maximum release air pressure (MPa) | 0.7 |
| Mass (kg) | 10 |
Model Configuration and Compatibility
The product table lists a brake-fluid configuration; it does not list an ISO VG32 mineral-oil alternative for this unit. Match the master cylinder and the hydraulic fluid specification when replacing a booster or connecting it to an existing brake circuit.
The spring-applied/air-released sequence must also match the intended control logic. Review the complete brake, booster and valve circuit to establish the apply and release states during normal operation and changes in air supply.
Drawings and Performance References
Use the dimensional and performance references for the exact assembly. Lettered dimensions correspond to the drawing; a dash or blank in a specification is retained as stated and is not an additional rating.
Selection and Installation Considerations
Confirm hydraulic pressure, required displacement, release-air conditions, brake compatibility and mounting space. Use the dimensional drawing to check the installation envelope and access to the cylinder, hydraulic connection and air connection.
As a general commissioning consideration, verify that the hydraulic circuit is correctly filled and bled, then check complete brake application and release under the intended operating conditions. Use the instructions for the exact installed configuration.
Ordering Information
Provide model DB-5244AF, master-cylinder reference DB-2204MS-01, quantity, connected brake model, required hydraulic pressure and displacement, available release-air pressure, fluid specification and mounting drawing.