INDUSTRIAL EQUIPMENT MANUFACTURING ISO 7 CLEANROOM

HORSTMAN, Sterling Heights MI

Background

ISO 7 industrial manufacturing cleanroom suite for military vehicle suspensions systems production & inspection.

Project Challenge

Western Environmental was required to work closely with the other selected vendors for integration of the Cleanroom Enclosure with the foundation, and the interface of overhead door operation with the parts transfer table. An additional challenge was the projects need to work around an existing bridge crane and accommodating an aggressive construction schedule.

Scope

An overall footprint of 52’ x 26’ with an inside ceiling height of 14’-6”
An interior gowning room was constructed for the owner’s lockers and benches to accommodate the owners cleanroom protocol.
The mechanical design consisted of a split DX air cooled system with the air handler and air cooled condensing unit located on the exterior roof of the building above the cleanroom footprint.
Our HVAC operating parameters throughout were:

Set point of 68°F with a tolerance of +/- 2°F
A max of 60% relative humidity
ISO 7 and ISO 8 classifications

Design

Engineering and design completed in house by our engineering team and the drawing set was stamped by an engineer licensed in the state of MI which was a requirement for the local building department to obtain the building permit.
Wall panels are insulated, and flame/smoke tested to ASTM E84 standards with an FM-4880 class 1 fire rating. (FM approved).
Gasketed cleanroom grid ceiling suspended from the existing building structural steel supports and ducted HEPA filters throughout the ceiling system.
Split DX mechanical system was designed by our engineering team to precisely deliver the accurate amount of air flow while maintaining temperature and humidity as specified.
Our Western Environmental custom-built control system was included and keeps the room within specification year round regardless of outdoor and ambient conditions.
Also included was as windows, man doors, an overhead door for large equipment access, and a conveyor cut out complete with vinyl strip curtains, an epoxy flooring system, and several other design features to make our client’s use of the space as functionable as possible.
Once complete, our testing and certification team arrived to test the temperature, humidity, room pressure lighting levels, air flow, particulate counts, and balancing of the rooms. Our testing and certification instrumentation has been calibrated to standards traceable to the National Institute of Standards and Technology (NIST). A requirement for the ISO 17025 accreditation our firm carries. We test all our cleanroom projects in accordance with ISO 14644.
Project close out consisted of an overview of the control system, maintenance of the system, cleanroom protocol recommendations, questions and answers discussion with the client’s team, and handing off the printed copies of the equipment manuals and an as-built set of the drawings.