MDT 300-18 Mill Duty Thruster Brake (For 300mm Drum)
A powerful and reliable fail-safe thruster brake for large 300mm drum applications.
- High Braking Torque: Delivers a massive 55 Kg-m of torque for maximum safety.
- Heavy-Duty Frame: Built with a rigid, welded steel frame to withstand extreme conditions.
- Reliable Thruster: Paired with the AT-520 (18 Kg) thruster for consistent performance.
- High-Frequency Operation: Engineered for up to 720 operations per hour.
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| Model | MDT 300-18 |
| Brake Drum Diameter | 300 mm |
| Thruster Model Used | AT-520 (18 Kg) |
| Braking Torque | 55 Kg-m |
| Operations per Hour | Up to 720 |
| IP Rating | IP-55 |
Working Principle
The Thruster Brake is a fail-safe device. Braking force is applied to the brake shoes by a pre-stressed compression spring. When power is supplied to the integrated electro-hydraulic thruster, it overcomes the spring force and moves the brake shoes clear of the drum, allowing machinery to operate. When power is cut, the spring instantly applies the brake shoes to the drum, retarding speed and holding the load securely.
Braking Torque & Sizing Guidelines
Anand Systems MDT Electro-Hydraulic Thruster Brakes operate on a fail-safe spring-applied mechanism. In the unpowered state, heavy compression springs force the brake shoes firmly against the brake drum. When electrical power is applied, the centrifugal pump inside the electro-hydraulic thruster generates oil pressure, smoothly pushing the piston upward to release the brake shoes. This MDT 300-18 model is matched to a 300 mm brake drum.
Braking Torque Formula
T_b = 2 × μ × F_spring × (D_drum / 2) × η
Where μ = friction coefficient (0.35 to 0.40), F_spring = spring thrust force, D_drum = drum diameter in metres (300 mm = 0.300 m for this model), and η = mechanical linkage efficiency (0.90).
Operating Parameters & Drum Compatibility
- Duty cycle rating: S3-40% / S4-60%, up to 720 switching operations per hour.
- Hydraulic fluid: transformer oil (IS:335) or ISO VG 32 hydraulic oil.
- Brake drum compatibility: precision-balanced cast iron and forged / cast steel / EN-8 drums, 100 mm to 400 mm diameter.
The 18 Kg Thruster Fitted to This Brake
This brake is driven by our 18 kg electro hydraulic thruster, photographed at our works.
