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ULVAC DA-40S Diaphragm Dry Vacuum Pump for Laboratory and Industrial Use

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Brands
ULVAC
New/Used
Used
  • Ships to NL
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  • Warranty available. Buy without worry
  • Support from a scientist

Product description

ULVAC DA-40S dry diaphragm vacuum pump with 60 W motor, oil-free, 19.9×10³ Pa ultimate pressure, ideal for biotechnology labs.

The ULVAC DA-40S is a diaphragm-type dry vacuum pump designed for reliable vacuum generation in laboratory and bioprocessing applications. Utilizing the reciprocating motion of a rubber diaphragm, the pump provides oil-free vacuum exhaust, making it ideal for sensitive environments such as molecular diagnostics and biomanufacturing pipelines.

Key features include:

  • Oil-free dry pump design ensuring contamination-free operation critical in synthetic biology and fluorescence analysis workflows.
  • Ultimate pressure of 19.9×10³ Pa (-81.4 kPa) delivers efficient vacuum suitable for applications in clinical diagnostics and cell imaging.
  • 60 W motor power balancing effective performance with energy efficiency.
  • Simple structure enables easy maintenance and minimal downtime in biopharmaceutical production settings.
  • Compatibility with ambient atmospheric operation from 7 to 40 °C, supporting diverse laboratory environments.
  • Compact dimensions (128×242×178 mm) and lightweight design (7.2 kg) facilitate benchtop use in confined lab spaces.
  • Optional unloader valve improves pump starting characteristics by introducing atmospheric air during stop cycles, enhancing operational reliability in continuous bioprocess applications.
  • Built-in automatic reset thermal protector ensures safe and durable operation under varied conditions.

Widely used in biotechnology and biomedical engineering, the DA-40S is essential for molecular cloning workflows and general laboratory vacuum tasks where clean, oil-free vacuum is required. This used unit is sold as-is; prior performance may vary, but warranty coverage is offered for initial defects within 10 days post-delivery.

Why Questpair exists

Lab equipment markets are fragmented. Buyers spend weeks calling distributors, comparing quotes, and verifying supplier reliability. Sellers struggle to reach global research labs.

We built Questpair to fix this. Every supplier on the platform is verified before listing. Every quote you receive comes from a real, vetted seller. AI prepares your case in minutes, then a real specialist takes over.

We're an independent team based in The Netherlands, working with research labs and procurement teams across Europe and worldwide.

Frequently asked questions

How long does laboratory equipment typically last?

With a service contract, ten to fifteen years is normal for most benchtop instruments. Detectors and pumps are the parts that wear first.

Can I get service for older equipment?

Yes. Every verified supplier states which service partners cover the instrument, and we list that alongside the offer.

Where can I buy parts?

Ask a scientist through the request button. Parts are often available even when the instrument itself is discontinued.

What is the typical lead time for refurbished equipment?

Two to six weeks, depending on refurbishment scope and whether calibration is included.

Does laboratory equipment ship internationally?

We ship to 38 countries. Crating and customs handling are quoted with the instrument.

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Last updated 19 October 2026