SBD-A series safety brake
The SBD-A series safety brake is a normally closed design, with the core being disc spring force braking and hydraulic drive release. When the equipment is running, the hydraulic system supplies pressure oil to the hydraulic cylinder, pushing the piston to overcome the preload force of the disc spring, driving the brake arm to swing outward, separating the brake pad from the brake disc, and releasing the brake. When the machine is stopped or in emergency situations such as power outage or hydraulic failure, the hydraulic cylinder loses pressure, the disc spring force pushes the piston back to its original position, the brake arm tightens, and the brake pad adheres to the brake disc for friction braking. Limit switches can also be optionally selected to provide feedback on braking status and warn of pad wear, ensuring safety.
- Environmental temperature: generally -20 ℃ -+50 ℃.
- Relative humidity: <= 90%.
- Altitude: Use an altitude not exceeding 2000m.
- Environmental requirements: There should be no flammable, explosive, or corrosive gases or conductive dust around the brake that can corrode metals or damage insulation. When exposed to outdoor rain, snow, or corrosive gases and media, anti-corrosion products should be used.
- Product models: mainly include SBD100-A, SBD125-A, SBD160-A, SBD200-A, SBD250-A, SBD315-A, etc.
- Braking force: The braking force range is 72KN-315KN, and different models correspond to different braking forces. For example, the braking force of SBD100-A is 72KN, and the braking force of SBD315-A is 315KN.
- Brake disc diameter: The applicable brake disc diameter range is Ø 800mm - Ø 1800mm.
- Safe and reliable normally closed design: using a specially designed disc spring as the core braking power source, the hydraulic system drives the release, and in case of sudden situations such as equipment power failure or hydraulic failure, the pressure can be instantly lost. The disc spring force quickly pushes the braking mechanism to close, achieving emergency braking and structurally eliminating safety risks such as slipping and falling, which is the core guarantee of its "safety brake" positioning.
- High performance friction braking system: equipped with asbestos free hard friction pads, the friction coefficient is stable and long-lasting, and the brake disc surface will not be damaged during the braking process. At the same time, the liner is insensitive to harsh environments such as water media and salt spray (seawater), and is suitable for wet or corrosive working conditions in multiple scenarios such as ports and mines.
- Sensitive and powerful braking force: As a high-power braking device specifically designed for low-speed shafts (drum shafts), the braking force covers 72KN-315KN and is compatible with Ø 800mm - Ø 1800mm brake disc diameters, which can meet the braking needs of heavy equipment such as large and medium-sized cranes and mining winches. Short braking closing time, rapid response, ensuring braking efficiency in emergency situations.
- Intelligent adaptation and protection function: An opening limit switch and a pad wear limit switch can be selected as needed. The former provides real-time feedback on the "release/braking" status to achieve electrical interlocking control of the equipment; The latter automatically alerts when the pad wear reaches a critical value, reminding timely maintenance to ensure stable braking performance.
- Outstanding durability and maintenance convenience: Adopting a reasonable sealing structure design and matched with imported branded seals, the sealing effect is excellent, extending the service life of the equipment. The overall structure is compact, the installation position is flexible, and the adjustment and maintenance process is simple, which can reduce the later operation and maintenance costs.
- Strong environmental adaptability: Conventional products can work stably in an environment of -20 ℃ -+50 ℃, and some models are suitable for low temperature conditions of -25 ℃ -+40 ℃. They can also operate normally at altitudes below 2000m. Anti corrosion products can be selected for outdoor or corrosive environments, with a wide range of adaptability.
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