Stainless Steel Pass Box Manufacturer

Cleanroom & Pharma-Grade Equipment

Sealed Transfer Chambers for Contamination-Controlled Facilities

A stainless steel pass box is a sealed transfer chamber built into a cleanroom or pharma production wall, letting materials move between clean and non-clean areas without opening the room's main door. Interlocking doors prevent both sides from being opened at once, keeping air pressure and contamination control intact.

Reliable Storage Systems manufactures both static and dynamic (UV-sterilised) pass box variants in-house at our ISO 9001:2015 and ISO 14001:2015 certified Mumbai facility. Choose a model below, or contact our team to specify a pass box for your cleanroom or GMP facility.

Configurations

Pass Box Models

Trusted By Leading Brands Across India

Warehousing and storage systems trusted by India's leading enterprises

Tata Group
Reliance Industries
Mahindra
Cipla
Amul
Aditya Birla Group
IHCL (Taj Hotels)
Tata Steel
Sun Pharma
TVS
Parle
Monginis
FAQs

Pass Box Questions, Answered

A static pass box has no airflow control and is used to transfer materials between two areas of the same cleanliness class. A dynamic pass box adds HEPA filtration and controlled air circulation, actively maintaining cleanroom conditions during transfer — typically required between areas of different cleanliness grades.

SS304 as standard, with SS316 available for higher corrosion resistance where required by your cleanroom or GMP standards.

Interlocking prevents both doors from being opened at the same time, which would create a direct air path between the clean and non-clean sides and defeat the purpose of the pass box. It's a core contamination-control feature, not an optional extra.
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