Single Axis Pedestal Bharani
Precision Single Axis Surveillance Pedestal for Ground-Based Scanners, Trackers and Radar Systems
The Single Axis Pedestal Bharani is a compact, high-precision azimuth positioner designed and supplied by System Controls for surveillance scanners, automatic tracking systems and ground-based surveillance platforms. Carrying up to 110 kg payload at a system weight of less than 25 kg, the Bharani delivers ±0.1° angular accuracy and ±0.001° readout accuracy across a programmable speed range of 1 to 25 RPM in 0.5 RPM steps. Driven by a BLDC motor with hollow shaft harmonic drive, powered at 24 VDC and compliant with MIL STD 461E, MIL STD 810F and JSS 55555 L3, it is engineered for sustained precision performance in India’s most demanding defence surveillance environments.
What is the Bharani?
The Single Axis Pedestal Bharani is a precision azimuth positioner designed for surveillance scanning, automatic target tracking and ground-based surveillance system integration. It is built around a BLDC motor with hollow shaft harmonic drive, delivering zero backlash precision gear reduction for accurate and repeatable azimuth positioning across its full 1 to 25 RPM programmable speed range.
| Parameter | Specification |
|---|---|
| Drive Specification | |
| Azimuth | N x 360 deg |
| Payload | Max 110 kg |
| Continuous Torque at 80 Kmph | 40Nm at 25 rpm |
| Azimuth Scanner Weight | Less than 25 kg |
| Angular Accuracy | Plus or minus 0.1 |
| Readout Accuracy | Plus or minus 0.001 |
| Speed | 25 RPM settable from 1 to 25 RPM in steps of 0.5 RPM (max tolerance 2%) |
| Environmental Specifications | |
| Temperature Operational | -30C to +55C |
| Temperature Storage | -40C to +70C |
| Wind Operational | Up to 80 kmph |
| Wind Survival | Up to 120 kmph |
| Humidity | 95% RH |
| EMI | MIL-STD-461E |
| Environment | L3 class JSS 55555 tests including driving rain test |
| Thermal Shocks | -20C to +70C as a sudden change |
| Rain Salt Fog Fungus | As per MIL-STD-810F |
| Solar Radiation | As per JSS55555 L2 category |
| Sand and Dust | Velocity 8.9 m/s, Temp 23C to 70C, Duration 6 hours each |
| General Specifications | |
| Power Supply | 24V DC input voltage |
| Total Power Consumption | 250W |
| Interface Type | RS-422 |
| Input Type | DC Input |
High Payload Capacity in a Lightweight Package
The Bharani carries up to 110 kg of surveillance or radar payload at a total system weight of less than 25 kg, delivering an exceptional payload-to-weight ratio for ground-based defence platform integration. This compact, lightweight design makes it suitable for rapid field deployment and integration onto mobile and fixed-site surveillance platforms without significant structural modification.
Wind Load Resilience for Field Deployments
The Bharani delivers 40 Nm of torque at 80 kmph wind load, maintaining stable, accurate antenna and sensor positioning in exposed field environments. The hollow shaft drive architecture and rugged construction ensure reliable operation across the full range of wind load conditions encountered in ground-based defence surveillance deployments.
Built-in Diagnostics for Field Reliability
The Bharani incorporates a comprehensive built-in diagnostics suite covering online health monitoring, offline fault testing, power-on self-test and desktop test software. This enables field operators and maintenance teams to assess system health, detect faults and validate performance without specialist test equipment, reducing downtime and support burden in operational deployments.
Defence-Grade Standards Compliance
The Bharani is qualified to MIL STD 461E for EMI/EMC, MIL STD 810F for environmental conditions and JSS 55555 L3 class for Indian defence environmental standards. Operating on 24 VDC with RS-422 communication interface, it integrates directly into standard defence surveillance and command systems without additional interface hardware.
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The Bharani is a single axis BLDC motor-driven pedestal for surveillance scanners, automatic tracking systems and ground-based surveillance platforms. It carries up to 110 kg payload, delivers ±0.1° angular accuracy and operates from 1 to 25 RPM in programmable 0.5 RPM steps on 24 VDC input.
The Bharani carries a maximum payload of 110 kg with a total system weight of less than 25 kg. It delivers 40 Nm torque at 80 kmph wind load, making it suitable for heavy surveillance sensors, EO payloads and radar antenna assemblies.
The Bharani delivers angular accuracy of ±0.1° and readout accuracy of ±0.001°, driven by a BLDC motor with hollow shaft harmonic drive for zero backlash precision positioning across the full operating speed range.
The Bharani operates from 1 to 25 RPM in programmable 0.5 RPM steps, allowing precise speed control tailored to surveillance scanning, tracking and antenna rotation mission profiles.
The Bharani includes built-in diagnostics covering online monitoring, offline testing, power-on self-test and desktop test software, enabling comprehensive health monitoring and fault detection in the field without specialist test equipment.
The Bharani complies with MIL STD 461E for EMI/EMC, MIL STD 810F for environmental conditions and JSS 55555 L3 class for Indian defence environmental standards.
The Bharani operates on 24 VDC input with a power consumption of 250 W, directly compatible with standard defence vehicle and ground-based platform electrical systems.
he Bharani uses a BLDC motor with hollow shaft harmonic drive, providing zero backlash precision gear reduction for accurate, repeatable azimuth positioning across the full 1 to 25 RPM programmable speed range.
