MUnit, JETPHARMA, Microchem


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Micronisation of APIs, Excipients, Steroids, Cytotoxics, Cytostatics, HPAIs, and Antibiotics

JETPHARMA (JP) and MICROCHEM (MCH) provide contract micronisation services to the pharmaceutical industry.

Email Address
Via Crocicchio Cortogna 6,
CH-6900 Lugano,
Fax Number
Contract micronisation services

JETPHARMA (JP) and MICROCHEM (MCH) provide contract micronisation services to the pharmaceutical industry.

Founded in the 1960s by Alberto Martinoli, the companies have built a loyal and frequent customer base in the industry, developing their expertise with active pharmaceutical ingredients (API), inert substances, highly potent active ingredients (HPAI), cytotoxic and cytostatic drugs, steroids, and psychotropic substances.

They have achieved ever-increasing micronisation yields and ever-decreasing particle sizes, down to fractions of a micron.

In 2016, JP and MCH’s commercial and technical expertise were concentrated into new consultancy company MUnit. The group has developed a reputation for outstanding micronisation competence and excellent service levels.

JETPHARMA is a Swiss supplier of contract micronization services.
JETPHARMA can provide a range of activities, including jet milling, sieving, pin milling and PSD analyses.
The company’s range of isolators enables it to provide totally contained micronization services.
The company has built up an excellent reputation for quality micronization with high yields.
The Half Suite box isolator provides high containment below 50ng/m³.
JETPHARMA also provides a range of laboratory services for quality control.
Quality control services include identification and particle size distribution analysis.

Fully contained micronisation services

JP and MCH provide a range of services for micronisation under containment to avoid cross-contamination and mix-ups, prevent the release of hazardous substances into the environment, and protect the active ingredients and operators.

JP’s Glove box and Half-Suite box isolators allow high-containment performance below 25ng/m³ (third party verified). Its flexible and dependable operations mean up to 120l of product can be handled and packaged quickly and efficiently.

The isolator can be used with different types and sizes of mill, handling a variety of activities including jet milling, sieving, pin milling, and particle size distribution (PSD) analysis.

High-performance, scalable micronisation solutions

JP and MCH offer excellent scalability, with the ability to maintain the same granulometric curve at ever-increasing production capacities.

Using a series of modular machines, the companies can micronize single gram quantities up to hundreds of kilograms, while retaining the same granulometry and performance.

Strong regulatory success

JP and MCH have built an excellent reputation with regulatory authorities, including:

  • Swissmedic and European Medicines Authority (EMa), regularly inspected
  • US Food and Drug Administration (FDA) inspected pre-approval and good manufacturing practices (GMP)
  • Ministry of Health, Labor, and Welfare Japan (MHLW)

Mechanical milling services, de-lumping, API, excipient blending, and cryogenic micronisation

JP and MCH’s service range includes:

  • Micronisation of APIs, steroids, cytotoxics and cytostatics, HPAIs, antibiotics (not Beta-lactams) with its spiral jet mills (MC JETMILL)
  • Reduced product build-up and yields of more than 99% for the industrial process in quantities from 1kg upwards
  • Very fine and precise particle size distribution with just a single micronisation passage for almost all pharmaceutical ingredients
  • Micronisation of any pharmaceutical ingredients with no heat generation, even for those with a low (30°C – 40°C) melting poin, using isothermal jet mills
  • Mechanical milling services with a hammer mill and micronisation with jet mills
  • De-lumping, including the removal of agglomerates, can be achieved using spiral jet mills and a hammer mill
  • Dispensing and re-packing of bulk APIs into any sized container in our cleanrooms and / or isolators
  • Packaging under an inert atmosphere (nitrogen or argon) ensures API integrity through the preservation of powder
  • Blending of excipients and APIs is available as a standalone process or as part of a wider micronisation process
  • Sieving can also be provided as a standalone or combined process to achieve a specific particle size profile
  • Co-micronisation, which combines blending and particle size reduction of an API and / or excipient, is also available as a single process
  • Cryogenic micronisation is available for highly sensitive products, as it avoids polymorphic changes and an increase in amorphous particles; it is also enabling the micronisation of polymers

Laboratory activities and instruments for quality control

JP and MCH also offer a range of laboratory services for quality control purposes. These include:

  • Identification analysis
  • Cleaning validation studies
  • Particle size distribution analysis
  • Environment, water, and equipment surface microbiological monitoring
  • Analytical method transfer
  • Analytical method comparison study
  • Contract laboratory for PSD analysis

To ensure exceptional levels of quality control, the companies also have an extensive range of advanced laboratory instruments and equipment. These include:

  • Malvern Mastersizer Microplus (wet dispersion only)
  • Malvern Mastersizer 3000 (wet and dry dispersion)
  • Sympatec
  • Fourier transform infrared (FT-IR)
  • Melting point analyser
  • Ultraviolet (UV) visual spectrophotometer
  • Air sampler for microbiological analysis
  • Air sampler for environment hygiene control
  • Optical microscope with image analysis
  • Validation services for regulatory compliance

In addition, JP and MCH undertake a range of validation activities. These include:

  • Process parameter studies to define and support the validation activity
  • Process validation
  • Analytical method validation
  • Analytical method correlation study

To find out more or to make an enquiry, please contact MUnit, which operates as a single access point to all of JP and MCH services.

White Papers

  • Micronisation and Milling Services

    In response to increased demand for new high profile services from the global market, JETPHARMA addressed to customers like a close partner, as if it were a spin-off of the client company.


  • MUnit Micronization Solutions - MC JETMILL

    JP and MCH’s service range includes the micronisation of APIs, steroids, cytotoxics and cytostatics, high-potency active pharmaceutical ingredients (HPAI), and antibiotics (not Beta-lactams) with its spiral jet mills (MC JETMILL).

Press Releases

Products & services

  • Micronization Services

    Our spiral jet mills have been designed to guarantee precise scalability. This enables the active ingredient to be followed from its first R&D phases through to commercial launch.

Via Crocicchio Cortogna 6
CH-6900 Lugano

Email address
Fax Number
Via Sottobisio 42a/c
P.O. Box 234
CH-6828 Balerna

Via Turati 2
I-29017 Fiorenzuola d'Arda (PC)

Fax Number