Burt Process Equipment engineered and delivered a customized black oxide finishing line consisting of eight process stations and a drain table. The modular system was designed to streamline surface treatment processes, combining precision heating, chemical containment, and control automation across a compact footprint. The entire line was pre-assembled on epoxy-coated steel base frames for easy site installation, with tanks and instrumentation prewired to a centralized control panel. This configuration also allowed future expansion of black oxide capacity.
Industry
Metal Finishing
Challenge
Compact Modular Processing
Solution
Requirements & Challenges
The facility required a modular system that could:
- Support high-temperature processing (up to 285°F)
- Handle corrosive chemistries and rinse sequences
- Fit within a limited installation space
- Be expandable for future tank additions
- Include accurate temperature control and level protection
- Provide factory preassembly to reduce on-site labor
- Meet specific safety, exhaust, and utility interface requirements
Delivered Solution
The final system included eight process tanks (seven process stations plus a drain table), mounted on two separate skids for phased use and expansion.
Key Features by Station:
- Heated Cleaner Tank (200°F):
- T316L stainless steel, insulated, with 3kW electric heater
- RTD temperature sensor, low-level heater interlock
- Rear exhaust hood
- Rinse Tanks (Ambient & 120°F):
- Polypropylene or stainless steel construction
- Overflow weirs, drains, and water spray nozzles
- Black Oxide Tank (285°F):
- Hot-rolled steel, insulated with epoxy-coated exterior
- 4.5kW de-rated heater, temperature probe, exhaust hood
- Pen Dip Tank & Drain Table:
- Hot-rolled steel dip station with grating
- Stainless steel drain table for parts drying and transfer
- Control Panel:
- NEMA 4X UL-listed enclosure
- Allen-Bradley CompactLogix PLC + 7” HMI
- RTD input modules, common alarm, emergency stop, disconnect
- Fully prewired for easy reconnection
- Accessories:
- FRP step platform (12′ long) for operator access
- Factory-installed PVC water, drain, and duct headers
- Two days of on-site startup support included
Outcome & Value Delivered
- Fully integrated, pre-piped and pre-wired finishing system
- Built-in flexibility for future process expansion
- Improved safety and quality control through automation
- Reduced site labor with modular, factory-built skids
- On-time delivery and startup support by Burt Process field techs
- Delivered ready for utility connection and integration with exhaust and treatment systems
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