Overview
AKUSENSE MUD-60 ultrasonic dual-sheet detection sensors adopt through-beam ultrasonic sensing technology to reliably distinguish single, double and multiple sheets in printing, paper feeding and packaging processes. With transducer frequencies of 200KHz / 400KHz, a compact M18 nickel-plated brass cylindrical housing and IP65 rating, they deliver stable detection in dusty and harsh industrial environments. A 3-color LED indicator provides intuitive status display: green for single sheet, red for double/multiple sheets, yellow (or flashing red) for no sheet. Equipped with teaching function, 1ms refresh rate and up to ±45° divergence angle, the sensors offer flexible installation and easy on-site setup. NPN and PNP output versions are available.
Key Features
- Ultrasonic Through-beam Detection — high-precision identification of single, double and multiple sheets
- Dual Transducer Frequencies — 200KHz and 400KHz versions for different sheet materials and thicknesses
- 3-Color LED Status Indicator — green: single sheet; red: double/multiple sheets; yellow: no sheet; intuitive on-site status
- Teaching Function — one-key sheet setting for quick adaptation to different materials
- Fast Refresh Rate — 1ms refresh for high-speed feeding lines
- Compact M18 Cylindrical Housing — nickel-plated brass body, easy mounting with nut, space-saving
- ±45° Divergence Angle — flexible installation and alignment tolerance
- IP65 Enclosure Rating — dust-proof and water-jet resistant for industrial environments
- NPN / PNP Output Optional — full model range for different control systems
- Dual Circuit Protection — overload / reverse polarity and short-circuit protection
Technical Specifications
| Parameter | Specification |
|---|---|
| Working Principle | Ultrasonic sensor |
| Sensing Method | Through-beam |
| Output Mode | NPN / PNP (by model) |
| Response Time | 15ms / 6.5ms / 2.5ms (by model) |
| Response Frequency | 10Hz / 7Hz / 20Hz (by model) |
| Refresh Rate | 1ms |
| Sensing Distance | 20~60mm (by model; see selection table) |
| Transducer Frequency | 200KHz / 400KHz (by model) |
| Divergence Angle | ±45° |
| Operating Voltage | 18~30V DC / 20~30V DC (by model) |
| No Load Current | ≤50mA |
| Voltage Drop | 2V |
| Load Current | ≤100mA / ≤200mA (by model) |
| Operating Temperature | -20℃ ~ 70℃ / 5℃ ~ 60℃ (No Freezing, by model) |
| Storage Temperature | 0℃ ~ 65℃ (No Freezing) |
| Housing | Cylindrical |
| Housing Material | Nickel plated brass |
| Dimensions | M18×79mm + M18×47.6mm / M18×60mm + M18×30mm (by model) |
| Weight | Approx. 170g / 400g (by model) |
| Max. Tightening Torque | 15N·m |
| Connection | 2m / 6-wire or 7-wire cable (by model) |
| Enclosure Rating | IP65 |
| Protection Circuit | Overload / Short-circuit, or Reverse polarity / Short-circuit (by model) |
| Accessories | Nut |
Model Selection Table
| Model | Output | Transducer Freq. | Sensing Distance | Response Time | Connection |
|---|---|---|---|---|---|
| MUD-60N-18-GL | NPN | 200KHz | 30~60mm | 15ms / 10Hz | 2m / 6-wire |
| MUD-60P-18-GL | PNP | 200KHz | 30~60mm | 15ms / 10Hz | 2m / 6-wire |
| MUD-60N-200 | NPN | 200KHz | 20~60mm (45mm best) | 6.5ms / 7Hz | 2m / 7-wire |
| MUD-60P-200 | PNP | 200KHz | 20~60mm (45mm best) | 6.5ms / 7Hz | 2m / 7-wire |
| MUD-60N-400 | NPN | 400KHz | 20~40mm (22mm best) | 2.5ms / 20Hz | 2m / 7-wire |
| MUD-60P-400 | PNP | 400KHz | 20~40mm (22mm best) | 2.5ms / 20Hz | 2m / 7-wire |
*LED indicator: Green ON = single sheet; Red ON = double/multiple sheets; Yellow ON (GL models) / Red flashing (200/400 models) = no sheet; Green flashing = teaching in progress (200/400 models)
Applications
- Single / double / multiple sheet detection in printing presses & paper feeding
- Paper, film and foil feeding verification in packaging machines
- Cardboard and corrugated board double-sheet detection
- Sheet overlap prevention in die-cutting and folding lines
- Banknote and security paper feeding monitoring
- Laminating and coating line sheet feeding control
How to Select
- Select transducer frequency by application
200KHz for general sheet detection (20~60mm); 400KHz for higher-speed thin sheet detection (20~40mm). - Select output type by control system
NPN models for sinking output; PNP models for sourcing output. - Confirm installation
M18 threaded cylindrical housing with nut mounting; 6-wire (GL) or 7-wire (200/400) cable connection.
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