Miniature Vacuum Pump – Hilintec Micro Pumps

D30 High Vacuum High Pressure Mini Air Pump

sammi.yuan — Tue, 12 May 2026 08:14:28 +0000

The D30 Series is a high-performance, adjustable-speed diaphragm pump engineered for exceptional high vacuum and high pressure capabilities in a compact form factor. It achieves an impressive -91 kPa relative vacuum (10 kPa.abs) for deep vacuum extraction while delivering up to 250 kPa output pressure (D30PS series) for demanding pressurization tasks. Powered by a brushless DC motor, this pump supports true positive and negative pressure dual-use, allowing long-term, full-load operation across a wide pressure range. Whether you need strong suction, forceful compression, or both, the D30 Series provides reliable performance for continuous, industrial-grade applications.

Aggressive Corrosion Resistance (PVDF & PTFE Construction)

Unlike standard pumps that fail when exposed to harsh chemicals, the D30 series offers a full PTFE/PVDF “PV” material option. The pump head is machined from PVDF, while the diaphragm, check valves, and seals are manufactured from virgin PTFE. This combination provides exceptional resistance to strong acids, alkalis, and organic solvent vapors, ensuring long-term reliability in the most demanding chemical environments.

High Vacuum & High Pressure

The D30 series is a professional adjustable‑speed positive/negative pressure diaphragm pump engineered to deliver consistent high vacuum and positive pressure in a single compact unit. The D30VS model achieves up to -91 kPa relative vacuum for deep suction applications, while the D30PS model provides up to 250 kPa positive pressure for pneumatic driving and pressure delivery tasks.

High Flow Output in an Ultra-Compact Footprint

With an ultra‑compact footprint of 73.5 × 37.5 × 69 mm and a lightweight body of only 295 g, the D30 pump integrates powerful performance into a minimal form factor, perfect for portable devices, bench‑top instruments, and space‑limited equipment.Designed for high‑efficiency gas handling, the D30 pump delivers peak flow ≥5.5 L/min and average flow ≥3.5 L/min under standard atmospheric pressure, balancing strong suction/pressure capability with consistent flow output. It features industrial‑grade airtightness and a precision‑engineered diaphragm structure。

If you need a smaller pump, please refer to D15

Speed Control Function

The flow(BLDC type) can be changed by adjusting the motor speed of the diaphragm gas pump (by adjusting the PWM duty cycle).

Flexible Modular Connections

Installation is effortless with modular port options. Choose between standard H4 barbed fittings (4mm ID hose), PC6 quick-insert fittings (6mm OD tube), or Rp1/8 & NPT 1/8 internal threads. Additionally, the inlet and exhaust ports can be rotated 360°, allowing you to route tubing perfectly within your chassis without kinking.

Long Service Life & Low EMI

Engineered for “7×24” continuous duty cycles, the D30 utilizes a high-quality brushless DC (BLDC) motor. It boasts a design life of 8,000 hours under full load and 10,000 hours under no load. The brushless design eliminates carbon dust contamination, reduces electromagnetic interference (EMI), and significantly extends service intervals compared to standard brushed pumps.

Speed Feedback Signal

The brushless motor type can know the high and low speed of the diaphragm gas pump through the speed feedback signal. From this, the operating state of the pump can be known, which is convenient for realizing closed-loop control and making the system more intelligent

Industrial-grade Reliability

In response to industrial-grade reliability requirements, we have designed a special test process for possible load conditions. Therefore, no matter what load the product actually works under, its actual service life can reach and exceed its nominal service life. If the actual working load is less than the nominal maximum load, its life can be further extended. Therefore it can operate without stopping for a long time under the maximum load. The product has passed the life test under the maximum load, and can promise to reach the nominal life under various loads.

D31 Series Low-Pulsation Mini Diaphragm Gas Pump

sammi.yuan — Sat, 09 May 2026 06:09:47 +0000

The Hilintec D31 low pulsation pump Series is a next-generation, diaphragm gas pump designed for analytical instruments, medical devices, and environmental monitoring. Unlike traditional 1-chamber or 2-chamber pumps, the D31 features a unique 5-chamber linkage structure that delivers an exceptionally smooth, pulse-free flow. It supports both vacuum and pressure operation, offers PWM speed control and FG speed feedback, and delivers high flow in a compact footprint. Ideal for instruments requiring steady, pulse‑free gas delivery with long‑term durability.

Ultra‑Low Pulsation Flow Output

The D31 series adopts a proprietary 5‑chamber linkage diaphragm structure that significantly evens out instantaneous flow fluctuations. Unlike standard single‑chamber diaphragm pumps with obvious periodic pulsation, D31 provides near‑smooth gas delivery. This low‑pulse characteristic greatly simplifies gas circuit design, reduces requirements for buffer tanks or stabilizers, and improves the stability and accuracy of gas sensors and analytical systems.

In the field of dust particle counter applications, 2.83LPM or 0.1 CFM rotary vane sampling air pumps are widely used due to their low pulsation characteristics.However, the vane sampling pump has a short life and high cost due to its wear characteristics.The five pump chambers inside the D31 work together to achieve a low pulsation output similar to that of a rotary vane sampling air pump, while its low-wear diaphragm gas pump characteristics can achieve much lower costs and longer operating life than its competitors, making it very suitable for replacing sampling pumps in low pulsation scenarios.

You can also refer to our Hilintec Pulsation Elimination Technology to get more information。

Long Service Life & 24/7 Continuous Operation

Equipped with a high‑performance brushless DC motor (BLDC) and wear‑resistant wetted components, the D31 supports heavy‑load continuous running. The motor life reaches up to 18,000 hours, and the diaphragm gas pump full‑load life up to 8,000 hours under laboratory test conditions. It is designed for stable, long‑term use in industrial instruments, medical devices, and online monitoring equipment without frequent replacement or maintenance.

High Flow Output in an Ultra-Compact Footprint

The D31M delivers 4.0 L/min average flow while measuring only 80.5 × 40.5 × 39.5 mm and weighing approximately 150 grams. The D31Q delivers 3.5 L/min average flow with slightly larger dimensions at 95.5 × 40.5 × 39.5 mm and weighing approximately 190 grams. Both variants offer excellent flow-to-size ratios, with the D31M prioritizing maximum flow and the D31Q prioritizing quiet environment.

It has five pump chambers in a very small structure. If you need a more reliable diaphragm gas pump, you can refer to the C26 mini pump model.

Speed Control Function

The flow(BLDC type) can be changed by adjusting the motor speed of the diaphragm gas pump (by adjusting the PWM duty cycle).

Dual Vacuum & Pressure Function

Each D31 diaphragm gas pump integrates both vacuum suction and positive pressure output in one unit. It can achieve a relative vacuum of ≥-35 kPa and output pressure up to 55 kPa (standard/premium versions). This dual function reduces the number of diaphragm gas pumps in the system, lowers overall cost, saves installation space, and simplifies piping and control logic.

Speed Feedback Signal

Industrial-grade Reliability for Low Pulsation Pump

In response to industrial-grade reliability requirements, we have designed a special test process for possible load conditions. Therefore, no matter what load the product actually works under, its actual service life can reach and exceed its nominal service life. If the actual working load is less than the nominal maximum load, its life can be further extended. Therefore tt can operate without stopping for a long time under the maximum load. The product has passed the life test under the maximum load, and can promise to reach the nominal life under various loads.

D28 Speed-Adjustable Positive Negative Pressure Diaphragm Pump

sammi.yuan — Fri, 03 Apr 2026 02:35:05 +0000

The D28 series is a high-performance speed-adjustable positive & negative pressure diaphragm pump engineered for industrial-grade continuous operation, weighing only 177g with a compact dimension of 59x37x62mm. It delivers an impressive peak flow rate up to 5.0 L/min and a maximum relative vacuum of -50kPa, paired with a 40kPa positive pressure output—realizing dual positive & negative pressure functionality in a miniaturized design.

Compact Size with High Flow & Dual Pressure

Maintains ultra-small volume while providing peak flow up to 5.0 L/min, -50kPa maximum vacuum and 40kPa positive pressure. Enables both vacuum suction and pressure boosting in one unit, meeting diverse pressure requirements of industrial applications.If you need a pump with lower flow rate, please refer to D15

Multiple Motor Options & Long Lifespan

The D28 series offers three motor versions to suit different application needs. The DC Brushed Motor (Simplified Version) delivers a 2000-hour full-load lifespan, providing a cost-effective solution for general scenarios. For continuous operation with low electromagnetic interference, the BL Brushless Motor (Standard Version) extends the lifespan to 7000 hours under full load. The BA Brushless Motor (Premium Version) is designed for heavy-duty 7/24 working conditions, featuring a 12000-hour full-load lifespan and a 18000-hour motor lifespan. All motors undergo rigorous life testing.

Modular Connections for Diaphragm Pump

This mini gas pump offers comprehensive connection compatibility with multiple standard fitting options including 4mm hose connector,quick-connect PC6, as well as internal threaded Rp1/8 and NPSC1/8 connections.

Low Noise & Low Electromagnetic Interference

Optimized structural design ensures low operating noise and minimal electromagnetic interference, complying with industrial EMC standards and suitable for precision instrument and medical equipment applications.

Advanced Multi-Protection System

This model features intelligent self-protection with stall protection, over-current protection, and reverse-connection protection. This comprehensive safety system actively prevents damage from high-load conditions, power supply faults, or operational errors, ensuring uninterrupted performance and extended service life.

Industrial-grade Reliability

In response to industrial-grade reliability requirements, we have designed a special test process for possible load conditions. Therefore, no matter what load the product actually works under, its actual service life can reach and exceed its nominal service life. If the actual working load is less than the nominal maximum load, its life can be further extended. Therefore tt can operate without stopping for a long time under the maximum load. The product has passed the life test under the maximum load, and can promise to reach the nominal life under various loads.

Speed Control Function

The mini gas pump’s flow rate can be adjusted by controlling the motor speed. For brushless motor (BLDC) models, speed regulation is achieved by adjusting the PWM duty cycle.

D50 High Vacuum High Flow Dual head Diaphragm Pump

sammi.yuan — Fri, 11 Jul 2025 02:38:12 +0000

The D50 series are high-vacuum, high-flow dual head diaphragm pumps with a 24V operating voltage. They achieve a relative vacuum level exceeding -98kPa and a maximum flow rate of up to 22L/min. These pumps feature premium brushless motors, allowing speed adjustment via PWM duty cycle control. Multiple pipe fitting options are provided, including PC6, PC8, Rp1/8, NPSC1/8 cylindrical internal threads, as well as hose connectors, meeting diverse customer requirements for pipeline connections.

Powerful Suction,High Flow

The D50VB vacuum pump delivers exceptional performance with a vacuum level up to -98kPa(3kPa.abs) and a peak flow rate reaching 13L/min. Its balanced high-vacuum and high-flow design caters to critical processes like gas sampling, analytical instrumentation, and automated systems where both speed and suction depth are essential.

High Flow,High Vacuum

The D50FB vacuum pump delivers outstanding performance with both high flow rate and high vacuum capability, achieving an impressive vacuum level up to -88kPa and a peak flow rate of 22L/min. Despite its remarkably compact design, this powerful unit maximizes performance to fully meet demanding requirements for both strong vacuum and high flow applications.If you need a pump with high air-tightness, please check the D50TS model

Modular Connections

This mini gas pump offers comprehensive connection compatibility with multiple standard fitting options including 8mm and 4mm hose connector,quick-connect PC6 and PC8, , as well as internal threaded Rp1/8 and NPSC1/8 connections.

Dual Head Diaphragm Pump Design

The two pump heads can be connected in series, in parallel, or used as two independent pump heads to meet various application requirements.

Long Lifetime

This pump is equipped with a high-quality brushless DC motor capable of continuous operation, delivering reliable performance with an extended service life of up to 7,500 hours under full load conditions. The premium motor design ensures smooth, maintenance-free operation while providing excellent durability for demanding industrial applications.

Advanced Multi-Protection System

Industrial-grade Reliability

In response to industrial-grade reliability requirements, we have designed a special test process for possible load conditions. Therefore, no matter what load the product actually works under, its actual service life can reach and exceed its nominal service life. If the actual working load is less than the nominal maximum load, its life can be further extended. Therefore tt can operate without stopping for a long time under the maximum load. The product has passed the life test under the maximum load, and can promise to reach the nominal life under various loads.

Speed Control Function

The mini gas pump’s flow rate can be adjusted by controlling the motor speed. For brushless motor (BLDC) models, speed regulation is achieved by adjusting the PWM duty cycle.

LabEZ™ D50 Series High Vacuum Micro Laboratory Pump

sammi.yuan — Tue, 10 Jun 2025 06:45:39 +0000

The LabEZ™ D50 Series Micro Laboratory Pumps combine industrial-grade durability with precision engineering to deliver exceptional performance for a wide range of laboratory applications. Whether you need vacuum generation, gas transfer, or compression, the LabEZ™ D50 Series offers unmatched reliability and flexibility.The Micro Laboratory Pump features built-in vacuum and pressure gauges, with the front panel displaying real-time negative pressure at the suction side and positive pressure at the discharge side. A speed adjustment knob is also installed on the front panel for convenient flow rate regulation.

High Vacuum,Broad Pressure Range

Featuring industrial-grade vacuum performance, this Micro Laboratory Pump achieves an ultimate vacuum of -91kPa (100 mbar.abs) and a peak flow rate of 13L/min . The D50A model offers dual-pressure capability, functioning seamlessly in both vacuum (-70kPa) and positive pressure (50kPa) modes, making it a versatile solution for diverse lab needs..

High Corrosion Resistance

The Micro Laboratory Pump features excellent corrosion resistance, with optional PTFE (Teflon) diaphragms and valve seals and PVDF pump head specifically engineered for handling aggressive gas media. This chemical-resistant configuration maintains performance when pumping corrosive vapors or acidic gases, making it ideal for laboratory test where material compatibility is critical.

Adjustable Flow Rate

The product utilizes a BLDC brushless DC motor with built-in flow rate control circuitry, allowing users to continuously adjust the Micro Laboratory Pump speed via the flow control knob. This enables precise regulation of the laboratory diaphragm pump’s flow rate while meeting both high-flow applications and precise flow control requirements.If you need higher flow rates, please check out the D70 model

Pressure Indication

The LabEZ™ D50 Series features an intelligent pressure monitoring system designed for precision laboratory applications.The vacuum-only model features a built-in vacuum gauge for real-time monitoring of negative pressure in the suction line. The dual-pressure model incorporates both vacuum and pressure gauges, providing simultaneous display of suction-side vacuum and discharge-side positive pressure.

Long Lifetime

Equipped with high-quality brushless motors, the LabEZ D50V and D50M models deliver a service life of up to 8,000 hours, while the corrosion-resistant D50A variant offers a lifespan of 5,000 hours.

Industrial-grade Reliability

In response to industrial-grade reliability requirements, we have designed a special test process for possible load conditions. Therefore, no matter what load the product actually works under, its actual service life can reach and exceed its nominal service life. If the actual working load is less than the nominal maximum load, its life can be further extended. Therefore tt can operate without stopping for a long time under the maximum load. The product has passed the life test under the maximum load, and can promise to reach the nominal life under various loads.

Maintenance Free,Pollution-free Transmission

There is no need to add lubricating oil and maintenance, and it does not pollute the medium.

D50VS High-Vacuum Mini Gas Pump

sammi.yuan — Thu, 17 Apr 2025 03:01:24 +0000

The D50VS High-Vacuum Mini Gas Pump delivers industrial-grade reliability for demanding applications, combining high vacuum (-91kPa), large flow (13L/min). Its modular design features swappable nozzles and 90° rotatable ports for flexible installation, while optional PTFE corrosion-resistant materials (diaphragm, valves, seals) ensure compatibility with aggressive gases.

High Vacuum,Large Flow Rate

Featuring industrial-grade vacuum performance, this mini gas pump achieves an ultimate vacuum of -91kPa (100 mbar.abs) and a peak flow rate of 13L/min . Its balanced high-vacuum and high-flow design caters to critical processes like gas sampling, analytical instrumentation, and automated systems where both speed and suction depth are essential.

Modular Connections

High Airtightness

The pump offers superior airtight performance D50TS with an optional stainless steel pump head specifically engineered for high-seal applications, featuring an extremely low gas leakage rate to ensure reliable operation in demanding environments.

Multiple motor options

The pump is available with two motor options to meet different application requirements: a brushed motor version offering excellent cost efficiency for general-purpose use, and a brushless motor variant that delivers superior longevity (8,000+ hours continuous operation) with minimal maintenance needs.

High Corrosion Resistance

The pump features excellent corrosion resistance, with optional PTFE (Teflon) diaphragms and valve seals specifically engineered for handling aggressive gas media. This chemical-resistant configuration maintains performance when pumping corrosive vapors or acidic gases, making it ideal for laboratory, industrial, and chemical processing applications where material compatibility is critical.

Long Lifetime

The mini gas pump offers service life with 2,500 hours for brushed motor versions and up to 8,000 hours for brushless motor (BLDC) models, ensuring long-term reliability for different operational needs.

Advanced Multi-Protection System

Industrial-grade Reliability

In response to industrial-grade reliability requirements, we have designed a special test process for possible load conditions. Therefore, no matter what load the product actually works under, its actual service life can reach and exceed its nominal service life. If the actual working load is less than the nominal maximum load, its life can be further extended. Therefore tt can operate without stopping for a long time under the maximum load. The product has passed the life test under the maximum load, and can promise to reach the nominal life under various loads.

Speed Control Function

The mini gas pump’s flow rate can be adjusted by controlling the motor speed. For brushless motor (BLDC) models, speed regulation is achieved by adjusting the PWM duty cycle. For brushed DC motor versions, motor speed control and consequently flow control can be accomplished either by varying the input voltage or through PWM control using an H-bridge circuit.