News overview and blog about products

Stay up to date with the latest developments within Hecht Technology and the industry. In this overview, we share practical insights, technical innovations, market trends, and company news. From containment solutions and process optimization to project updates and events – here you will find relevant knowledge and current affairs for professionals in high-containment and powder handling.

Transport under containment conditions

Containment Transport Systems for HPAPI Handling

Key Points

  • Isolated conveyor belts up to 3.5 m/s, closed hopper systems for API handling
  • OEB 5 (HPAPI): <1 µg/m³ exposure limit. OEB 6 (ultra-potency): <0.1 µg/m³
  • ATEX 2014/34/EU, Annex II (Categories 2G & 3G), negative air flow -50 Pa
  • HECHT ProClean Conveyor + LBK-EC separation combination; integrated decontamination
  • Validation capability: 21 CFR Part 11, audit trail logging, GMP-compliant design

More details in our Test & Trial Centre in Pörnbach for practical validation, or consult our containment product series. For OEB selection and risk analysis: contact us.

FAQ — Containment Transport Systems

What is the difference between OEB 4 and OEB 5 transport?
OEB 4 (<10 µg/m³): semi-open isolation, suitable for normal APIs. OEB 5 (<1 µg/m³): fully enclosed conveyor belts, strict decontamination protocols after use. OEB 5 requires annual validation per batch series. HECHT offers both levels with scalable design.

How do I integrate containment transport with my existing silo & process equipment?
Our LBK-EC separation systems connect directly with HECHT conveyor belts via standard flange connections. Retrofit installation: 2–4 weeks. Includes pressure differential recalibration, SCADA connection, and GMP documentation. No production loss if performed outside working hours.

Which safety certification do I need for international export of HPAPIs?
ATEX 2014/34/EU (EU export), IECEx (USA & China), GOST (Russia). HECHT containment transport is fully certified for all three. Certificates & technical drawings are provided at delivery; no separate requests needed.

Author: Joost van Velzen, Director Hecht Technology B.V.

Related Reading

Our products

Read more

How a vacuum dryer works

De werking van een vacuümdroger Een vacuümdroger is onmisbaar voor het drogen van warmtegevoelige materialen in sectoren zoals farmacie, voedingsmiddelen en special chemicals. Hecht Technology le

Read more

Powtech 2025

Get to know our latest machines and system solutions and discover pioneering developments in the field of industrial process engineering. We cordially invite you to our trade fair appearance at POWTECH 2025 in Nuremberg!

Read more


Older articles