ATEX Booth Retrofit Scenario

Content trust and applicability

Author
TD Engineering Team
Publisher
Shanghai Tudou Technology Co., Ltd. | Shanghai, China
Scope

Engineering guidance for robotic spray painting, paint booths, paint supply systems, and production-scope decisions.

Best used for

Best used for early-stage feasibility checks, vendor comparison, scope definition, and internal project alignment.

Use with caution

Final specifications still depend on coating chemistry, part family, takt, utilities, site layout, local code, and EHS review.

Evidence basis

Based on TD engineering team experience, recurring project delivery patterns, and equipment-integration practice.

A practical retrofit scenario for a solvent-based metal parts line entering classified space.

Retrofitting a solvent-based steel cabinet line into an ATEX-classified booth

A manufacturer has an existing booth and wants to add robots without replacing the whole line. The key issue is not robot programming first, but whether the booth can safely support classified operation.

Challenges

  • Current exhaust volume is documented loosely and no recent airflow validation exists.
  • The team wants to keep solvent-based topcoat because of finish expectations and local supply constraints.
  • Existing controls were not originally engineered around classified-space interlocks.

Evaluation steps

  • Validate current airflow, exhaust balance, and overspray loading before choosing robot hardware.
  • Map the classified volume and identify all components that fall inside or interface with it.
  • Define whether retrofit logic is viable or whether new booth automation is cheaper than staged compliance fixes.

Healthy outcome signals

  • A stable retrofit plan usually ends with a clear airflow baseline, zone map, and explicit list of ATEX-dependent components.
  • If these cannot be defined early, the project often drifts into unplanned scope, delayed approvals, or expensive rework.
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