Miniature Air Sampling Pumps for Precise Gas Monitoring Applications
Designed for environmental monitoring, gas analysis, and industrial hygiene instruments.
Pinmotor miniature air sampling pumps deliver stable airflow, low pulsation performance, and precise PWM speed control. With flow ranges from 0.3 L/min to 12 L/min.
our diaphragm pump solutions provide reliable sampling performance for portable and industrial monitoring equipment.
Micro Diaphragm Air & Vacuum Pump Series Overview
Pinmotor micro diaphragm air & vacuum pumps are organized into three series—Compact, Standard, and High Flow—covering the full range of OEM applications from portable devices to industrial systems.
Compact & Low Flow Series
| Model | Flow Range | Vacuum | Pressure | Voltage | Key Features | Applications |
|---|---|---|---|---|---|---|
| 030-XA | 0.3–1.0 LPM | up to -50 kPa | low pressure output | 3–5V DC | ultra-compact size, low power consumption, lightweight structure | portable medical devices, wearable instruments, mini analyzers, small gas sampling devices |
| 130-XA | 0.5–2.0 LPM | up to -55 kPa | low pressure output | 3–6V DC | stable micro airflow, optimized for small OEM systems | beauty devices, handheld diagnostic tools, portable testers |
| 310-XA | 0.5–6.5 LPM |
up to -65 kPa |
medium pressure output | 5–12V DC | balanced airflow + vacuum performance, OEM integration ready | medical devices, gas detection systems, compact industrial modules |
Standard Dual Function Series
| Model | Flow Range | Vacuum | Pressure | Voltage | Key Features | Applications |
|---|---|---|---|---|---|---|
| 370-X | 1.5–6.5 LPM | up to -75 kPa | stable output | 5–12V DC | core OEM platform, balanced air & vacuum performance | medical instruments, environmental monitoring, gas sampling systems |
| 370-XE | 1.5–6.5 LPM | up to -80 kPa | improved stability | 5–12V DC | enhanced vacuum consistency, long-cycle operation | laboratory equipment, analytical instruments, precision monitoring systems |
| 370-XF | 1.5–6.5 LPM |
up to -80 kPa |
high reliability output | 5–12V DC | extended duty cycle design for continuous operation | industrial OEM systems, suction devices, automation modules |
High Flow Industrial Series
| Model | Flow Range | Vacuum | Pressure | Voltage | Key Features | Applications |
|---|---|---|---|---|---|---|
| 520-XA | 8–20 LPM | up to -82 kPa | high output airflow | 12–24V DC |
high airflow design, reinforced diaphragm structure | industrial automation, pneumatic control systems, packaging machinery |
| 528-XC | 10–25 LPMM | up to -85 kPa | reinforced pressure output | 12–24V DCC | high durability, optimized for continuous industrial use | vacuum systems, industrial suction, OEM equipment integration |
| 555-XA | 20–30 LPM |
up to -85 kPa |
maximum output platform | 12–24V DC | heavy-duty airflow capability, high load design | large industrial systems, airflow delivery systems, heavy OEM equipment |
Need a suitable micro diaphragm air & vacuum pump for your system?
Our team will help you select the right model for your OEM application.
Dual-Function Air & Vacuum Performance
A single pump delivers both air pressure and vacuum in one integrated structure. Pinmotor micro diaphragm pumps use a symmetrical chamber design with a precise check-valve system, allowing vacuum to be generated at the inlet side while positive pressure is delivered at the outlet.
Compared with separate pump configurations, this integrated design reduces external tubing connections, lowers the risk of leakage, and improves overall system stability. It is well suited for compact OEM equipment integration.
Vacuum Performance Range
● Vacuum level: up to -40 kPa to -85 kPa (model dependent)
● Flow range: 0.3 – 30 LPM
● Stable airflow output across long-duty operation
● Suitable for suction, sampling, and low-pressure systems
Higher vacuum performance is achieved in 370 and 528 series models.
Air Pressure Performance Range
● Pressure output: up to ~100 kPa equivalent system output
● Flow range: 0.3 – 30 LPM
● Stable diaphragm-driven airflow with low pulsation
● Suitable for pneumatic and low-pressure air delivery systems
Integrated Dual-Function Structure
All Pinmotor diaphragm pumps use a single-chamber reciprocating diaphragm system driven by a DC motor.
Key features include:
● Air and vacuum generated in one compact structure
● Oil-free operation for clean airflow
● Reduced system complexity for OEM integration
● Stable performance across long operating cycles
Micro Diaphragm Air & Vacuum Pump Exploded Structure & Materials
Pinmotor micro diaphragm air & vacuum pumps adopt a modular structural design. Each component in the exploded assembly is made of engineered materials selected to ensure stable airflow performance, long service life, and OEM integration flexibility.
The system combines diaphragm materials, airflow control components, mechanical transmission parts, and structural housing materials into a unified pump architecture.
OEM Material Customization Capability
Based on the modular structure shown in the exploded diagram, Pinmotor supports flexible OEM material configuration:
Not sure which material fits your pump system?
Our engineering team can help you select the right diaphragm pump materials based on your gas, temperature, and duty cycle requirements.
Customizable Options
● Diaphragm material upgrade (EPDM / FKM / PTFE / Silicone)
● Valve system optimization (noise reduction / chemical resistance)
● Housing material selection (PPS / PP / PA66 + GF / aluminum alloy options)
● Structural reinforcement for high-load applications
● Sealing system adaptation for different media compatibility
Application-Based Optimization
Material configuration can be adjusted based on:
● Gas composition
● Operating temperature
● Duty cycle requirement
● Noise sensitivity
● Chemical exposure level
Airflow Path & Valve System Materials
These components directly control air intake, discharge, vacuum generation, and flow stability.
● EPDM Umbrella Valves
Provide flexible sealing and directional airflow control for stable vacuum and pressure switching cycles.
● POM Flow Control Components
Used in internal airflow channels and guiding structures to ensure low friction and stable gas movement.
● PA66 + GF Reinforced Structural Parts
High-strength engineering plastic used in load-bearing and base components for improved rigidity and long-term stability.
● PP + Fiber Reinforced Housing Components
Used in outer structural support areas to enhance impact resistance and mechanical durability.
Mechanical Transmission System Materials
This system converts motor rotation into diaphragm reciprocating motion.
● 4Cr13 Stainless Steel Shaft
High-strength shaft ensures stable eccentric motion and long-term wear resistance under continuous operation.
● Carbon Steel Fasteners
Provide secure structural assembly and vibration resistance during long-duty operation.
● Precision Motor Assembly
Drives the eccentric mechanism for continuous diaphragm movement and stable airflow generation.
● Engineering Mounting Bracket
Ensures structural stability and reduces vibration transmission to external equipment.
Diaphragm & Sealing System Materials
These components determine sealing performance, chemical resistance, and cycle life.
● EPDM Diaphragm (Main flexible sealing element)
Standard material used for air and general gas applications, providing elasticity and fatigue resistance.
● Integrated Sealing System (NBR / FKM / Silicone options)
Selected based on working environment requirements such as temperature, gas composition, and duty cycle.
Micro Diaphragm Air & Vacuum Pump OEM Solutions
Pinmotor micro diaphragm air & vacuum pumps are widely used in OEM systems requiring stable airflow, vacuum suction, and compact integration. Based on the series platform, our pumps support a wide range of applications from portable devices to industrial automation systems.
Medical & Healthcare Devices
Micro diaphragm pumps are used in compact medical systems that require stable air and vacuum output in a single integrated unit.
● Suitable for portable diagnostic devices and suction systems
● Supports both air delivery and vacuum suction functions
● Compact structure enables lightweight device design
● EPDM / silicone material options available for sealed airflow systems
Typical use: portable monitoring equipment, small therapeutic devices, suction-based medical tools
Customer Case
A European medical device manufacturer selected the 370 series for a portable suction-based therapy device.
By replacing a dual-pump system with a single air & vacuum diaphragm pump:
● System structure was simplified
● Device size was reduced by approx. 18%
● Overall energy consumption was significantly optimized for battery operation
The solution improved integration efficiency and reduced internal piping complexity.
Analytical & Laboratory Instruments
Pinmotor diaphragm pumps provide stable airflow control for precision instruments requiring consistent sampling and gas handling.
● Stable flow output for analytical systems
● Suitable for gas sampling and laboratory instruments
● Compatible with POM and reinforced structural materials for long-term stability
● Supports continuous-duty operation in controlled environments
Typical use: gas analysis devices, sampling systems, compact laboratory equipment
Customer Case
A laboratory equipment manufacturer adopted the 310 and 370 series for a compact gas analysis system.
The pump system was used for:
● Stable gas sampling (vacuum mode)
● Controlled airflow delivery (pressure mode)
After integration:
● Flow stability improved system measurement consistency
● Maintenance intervals were significantly extended
● Device structure became more compact due to integrated pump design
Industrial Automation & OEM Systems
Micro diaphragm air & vacuum pumps are widely used in automation systems requiring stable pneumatic control in compact environments.
● Suitable for vacuum suction and air blow functions
● Stable operation under continuous-duty conditions
● Easy integration into OEM equipment
● Supports compact system design with reduced tubing complexity
Typical use: automation equipment, small pneumatic modules, industrial control systems
Environmental Monitoring & Sampling
These pumps are used in monitoring systems that require stable airflow for sampling and detection applications.
● Stable airflow ensures reliable sampling accuracy
● Suitable for compact outdoor and indoor monitoring devices
● Low power consumption supports long-term operation systems
● Compatible with portable and fixed monitoring equipment
Typical use: air sampling devices, environmental analyzers, gas detection systems
Need a Micro Diaphragm Air & Vacuum Pump Solution for Your Application?
Get engineering support for model selection, system integration, and OEM customization based on your performance requirements.
OEM Customization & Engineering Support
Performance Customization
● Flow rate optimization within platform range (0.3–30 LPM)
● Vacuum level adjustment based on model selection (up to -85 kPa)
● Stable airflow tuning for continuous operation systems
● Application-based performance matching
Structural Customization
● Mounting structure and installation adaptation
● Air inlet/outlet direction customization
● Compact housing design for space-limited OEM systems
● External shape modification for integration requirements
Electrical & System Integration
● PWM speed control support
● DC voltage compatibility (3V–24V platform range)
● Start/stop signal integration
● Optional feedback signal output (model dependent)
System Integration Options
● Pre-installed mufflers for noise reduction
● Integrated filters for airflow protection
● Check valves for flow stability
● Vibration damping components for system reliability
Pinmotor provides full OEM customization support for micro diaphragm air & vacuum pumps, covering performance tuning, structural adaptation, and system integration. Our engineering team supports customers from early-stage evaluation to mass production delivery.
OEM Project Workflow
Step 1: Sample Testing
We provide customized or selected standard samples for evaluation within 5–7 working days, allowing customers to test real machine performance and system compatibility.
Step 2: Contract Confirmation
After technical validation, we confirm specifications including pricing, delivery time, and packaging requirements, followed by formal agreement signing.
Step 3: Mass Production & Delivery
Once the order is confirmed, production and shipment are completed within 14–21 working days, depending on model and customization level.
FAQs – Micro Diaphragm Air & Vacuum Pumps
What is a micro diaphragm air & vacuum pump used for?
Micro diaphragm air & vacuum pumps are used in OEM systems that require both air pressure and vacuum suction in a compact design. Typical applications include portable devices, analytical instruments, environmental monitoring systems, and industrial automation equipment.
What is the difference between air pump and vacuum function?
The air function generates positive pressure for airflow output, while the vacuum function generates negative pressure for suction applications. A dual-function diaphragm pump integrates both functions into a single compact structure.
What vacuum level can your diaphragm pumps achieve?
Depending on the model, Pinmotor diaphragm pumps can reach vacuum levels from approximately -40 kPa up to -85 kPa, covering both compact and high-performance OEM applications.
Can I use one pump for both pressure and vacuum applications?
Yes. Dual-function diaphragm pumps are designed to provide both air pressure and vacuum output within one system, reducing the need for separate pump units and simplifying OEM integration.
How do I choose the right pump model?
Model selection depends on required flow rate, vacuum level, voltage, and installation space. Compact series are used for portable devices, standard series for OEM systems, and high-flow series for industrial applications.
Can the pump be customized for my application?
Yes. We support OEM customization including flow adjustment, structural design, electrical interface, and material selection based on your system requirements.
What materials are available for diaphragm pumps?
Standard materials include EPDM for general use, FKM for chemical resistance, and reinforced engineering plastics for housing and structural components. Material selection depends on operating conditions.
What is the typical service life of your pumps?
Service life depends on operating conditions, duty cycle, and model selection. Standard DC diaphragm pumps are designed for long-cycle stable operation in OEM systems.
Need a Micro Diaphragm Air & Vacuum Pump for Your Application?
Get expert support for model selection, performance matching, and OEM integration.
