Weigh with no one on the bridge.
The Symphony Unmanned Weighbridge Centering System automates the whole weighing cycle. Positioning sensors, cameras, RFID identification, barriers and display systems align the truck and give the driver real-time feedback. It runs 24/7 and integrates with different systems.
An unmanned weighbridge weighs trucks without an operator. RFID identifies the vehicle, infrared sensors check it is centred, LED and voice prompts guide the driver, the controller records the weight with camera photos, and the barrier releases the truck. It runs 24/7 and prevents wrong positioning and duplicate weighments.
Operator-free, audit-ready.
- Less human dependencyOperator-free weighment.
- No wrong positioningDuplicate and mis-weighed loads are prevented.
- 24 / 7 operationSecure, camera-audited weighing around the clock.
Indian-made RFID reader, IP camera audit and compatibility with leading ERP systems. Every weighment is stored with the vehicle record, the ticket and camera photos.
Five steps. No operator at the bridge.
Identify
The truck reaches the barrier; the RFID card is read and the vehicle checked.
Centre
Sensors check the position; PA and LED guide the driver.
Trigger
The controller commands weighment once the truck is centred.
Record
Weight is stored with the vehicle record and ticket.
Release
The exit barrier opens and the next truck can enter.
Controller, sensors, signals, barrier and cameras.
Specifications are from the Symphony unmanned weighbridge datasheet and are subject to change without notice.
Positioning controller · SMF.WCS
IP65 controller for positioning with IoT functionality. Gigabit Ethernet, PA audio output, 14-pin LED-matrix interface, 7 digital inputs (12 V) for IR sensors, 4 relays, 12 V DC / 5 A. 275 × 275 × 137.5 mm.
Infrared photocell · SMF.IRS
Infrared transmitter and receiver pair for vehicle position detection. Range 15 m, 940 nm, 1.92 kHz, 12–24 V AC/DC, relay output 1 A max 36 V.
LED matrix display · SMF.LED
Red SMD LED matrix, 10 mm pitch, 640 × 960 mm display in a powder-coated polycarbonate cabinet for pole or wall mounting. LAN / Wi-Fi, IP55.
PA amplifier · PA-400S
Two mic and one aux input, 4 Ω / 100 V line outputs. Delivers clear driver guidance across the weighbridge approach.
PA horn speaker · SMF.PAHS
UV-protected ABS horn, 250 × 145 mm, 15 W RMS / 23 W max, 8 Ω, 275–7000 Hz response.
Traffic light
Clear stop and go signals for controlled vehicle movement at unmanned weighbridges, improving safety and keeping traffic flowing.
Boom barrier · SMF Sport-3
3 m boom, 0.9 s running speed, 100% duty cycle, 80 W, 220 V AC, IP54. Optional remote, push button, loop detector, photocell, RS-232 / RS-485.
UHF RFID reader
Fast, contactless vehicle identification. Detects authorised RFID tags for seamless entry and exit with accurate data capture and secure, real-time tracking.
CCTV · PTZ camera
High-definition real-time monitoring over a network, with night vision, for secure vehicle tracking and activity recording.
CCTV · dome IP camera
Compact dome camera for gate and weighbridge audit, with remote access from anywhere and seamless integration with the weighbridge system.
| Barrier gate · SMF Sport-3 | |
|---|---|
| Running speed | 0.9 s |
| Boom length | 3 m |
| Boom dimension | 45 × 80 mm |
| Boom weight | 3 kg |
| Duty cycle | 100% |
| Motor | 1400 rpm · 80 W |
| Supply | 220 V ±10% · 110 V ±10% |
| Working temperature | –30 to +85 °C |
| Enclosure | IP54 |
| Positioning controller · SMF.WCS | |
|---|---|
| Interface | 1 × Gigabit Ethernet |
| Input power | 12 V DC / 5 A |
| GPIO | 7 × digital input (12 V) |
| Relays | 4 |
| Audio / video | PA / 14-pin LED matrix |
| Dimension | 275 × 275 × 137.5 mm |
Automate your weighbridge gate.
Tell us the number of lanes, vehicle volume and your ERP. We propose the controller, sensors, barriers and camera set.