The BD-05TR4L is a compact brushless double-head compressor delivering stable 4–5 bar pressure and 4 L/min airflow through a series-connected dual-head structure. Driven by a high-efficiency brushless motor, it provides low-noise, low-vibration, oil-free performance suitable for precision pressure and vacuum systems.
| Voltage | 12V / 24V |
|---|---|
| Max Flow | 4L/min |
| Max Vacuum | –70 kPa |
| Max Pressure | 4-5Bar |
| Motor | High-end brushless DC motor |
| Max Power | 11W |
| Weight | 260g |
The BD-05TR4LB is a compact swing piston compressor designed for stable high-pressure output and reliable vacuum generation. Its double-head series configuration increases discharge pressure by compressing air sequentially through two piston stages. During operation, the reciprocating piston motion generates positive pressure during compression strokes and negative pressure during intake strokes, enabling both gas compression and vacuum generation in a compact form factor. Powered by a brushless DC motor, the pump offers smooth operation, precise speed control, and long service life under continuous-duty conditions.
✓ Double-head series compression – The dual-head structure doubles outlet pressure, achieving 4–5 bar with stable performance.
✓ High-end brushless motor – Long lifespan, low noise, low vibration, and adjustable speed for refined flow and pressure control.
✓ Compact yet powerful – Small size with a high output of 4 L/min flow and –70 kPa vacuum capability.
✓ Low vibration design – Balanced internal mechanism ensures stable, quiet operation.
✓ Low power consumption – Efficient operation at only 11W, suitable for portable or battery-driven systems.
| Parameter | Value |
|---|---|
| Model | BD-05TR4LB |
| Voltage Range | 12V / 24V DC |
| Maximum Flow | 4 L/min |
| Maximum Negative Pressure | –70 kPa |
| Maximum Positive Pressure | 4–5 bar |
| Motor Type | High-end brushless DC motor |
| Maximum Power | 11W |
| Storage Temperature | –40°C to 60°C |
| Operating Environment | –20°C to 50°C |
| Dimensions | 114 × 31 × 55 mm |
| Weight | 260 g |
| Component | Material / Performance |
|---|---|
| Pump Head | PPS – high pressure resistance & strong chemical durability |
| Valve | EPDM (FKM optional for enhanced chemical compatibility) |
| Piston Cup | PTFE – excellent chemical resistance & low friction |
| Pump Body | PPS – lightweight, corrosion-resistant, high mechanical strength |
📌 Medical devices – Provides clean, oil-free airflow and stable pressure output for compact medical systems and rehabilitation equipment.
📌 High-end aesthetic devices – Ensures precise, high-pressure delivery for premium beauty and aesthetic treatment equipment.
📌 Automation equipment – Offers consistent vacuum and pressure support for industrial automation and smart manufacturing systems.
📌 Analytical instruments – Delivers stable, low-pulse airflow required for sampling, detection, and precision analytical modules.
📌 High-pressure atomization – Supplies powerful and stable pressure for fine atomization, spray modules, and micro-nozzle systems.
📌 Gas compression – Provides efficient, high-pressure airflow for miniature compressors and pneumatic drive mechanisms.
| Customization Aspect | Available Options |
|---|---|
| Diaphragm / Valve | EPDM, FKM |
| Voltage | 12V / 24V DC |
| Branding | Based on the model provided by the customer |
| Mounting | Customized brackets and anti-vibration dampers |
| Electrical Options | Custom cable lengths and connector types |
Selecting a micro pump partner is about more than performance data. It requires a manufacturer with proven capability in compact pump architectures, high flow density, and long-term OEM scalability.
BODENFLO specializes in compact high-flow micro diaphragm pumps and micro piston pumps, supporting applications that demand clean vacuum, stable airflow, and concentrated pressure output within limited installation space.
Core Advantages
BODENFLO works with global OEMs in medical devices, analytical instruments, industrial automation, environmental monitoring, and smart equipment—delivering compact, high-flow micro pump platforms designed to scale with your product roadmap.
“The BD-05TR4LB delivered stable 4 L/min flow and strong 4–5 bar pressure for our precision pneumatic module, running smoothly with very low vibration.”
— Senior Mechanical Engineer, Japan
“We integrated the double-head brushless compressor into a high-end aesthetic device, and its PPS construction handled long-term operation with excellent stability and noise performance.”
— Medical Device R&D Engineer, Italy
The BD-05TR4LB uses a brushless DC motor with a 4-wire configuration, enabling flexible speed control and real-time speed monitoring. The wiring definition is as follows:
Red (VCC): DC power positive (+)
Black (GND): DC power negative (–)
Blue (SP): Speed control input (PWM or voltage control, depending on system design)
Yellow (FG): Speed feedback signal (tachometer output for RPM monitoring)
This 4-wire BLDC architecture provides more stable operation, adjustable speed control, and accurate feedback compared with traditional 2-wire brushed motors. It allows easy integration into compact industrial and laboratory equipment when used with a compatible controller, without requiring complex external drive circuitry.
[BD-05TR4LB Brushless Double-Head Compressor Download Datasheet (PDF)]
In a series configuration, air is compressed sequentially by two piston stages. The second head further compresses the air discharged from the first head, effectively multiplying the pressure output without increasing motor size. This structure is ideal for applications requiring high pressure in compact systems.
The brushless motor enables precise speed control, higher efficiency, and significantly longer service life compared with brushed motors. It also reduces electrical noise, improves thermal stability, and supports continuous operation with minimal maintenance.
Swing piston compressors generate higher mechanical impulses than diaphragm pumps. To ensure stable operation, use anti-vibration mounts, flexible tubing, and rigid mounting surfaces. Proper mechanical isolation improves pressure stability and reduces structural noise.
When operating near 4–5 bar, internal mechanical load and thermal stress increase. Stable operating conditions, adequate heat dissipation, and avoiding rapid pressure cycling help protect the motor and piston mechanism and extend service life.
Maintain clean airflow paths, avoid particulate or condensate ingress, and provide sufficient ventilation around the pump. For fixed-speed operation, running below maximum pressure reduces wear and improves overall durability.
Looking for a reliable OEM partner for compact, high-pressure brushless compressor solutions with stable performance, low noise, long service life, and a clear cost advantage?
BODENFLO supports your project with:
Fast prototyping and sample delivery within 1–3 working days
Complete technical documentation, including datasheets, wiring diagrams, and STP files
Flexible OEM and customization services for pressure, flow, connectors, and custom Labeling
Professional engineering support from concept design to mass production
📧 Email: info@bodenpump.com
🌐 Website: https://bodenpump.com












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