C SERIES SALT SPRAY / FOG CHAMBERS
Auto Technology C Series Salt Fog (Spray) Chambers are a budget-friendly, spec-compliant fiberglass solution for stable-state corrosion and humidity testing. Built for laboratories running ASTM B117, ISO 9227 NSS / AASS / CASS, JIS Z 2371, ISO 7253, IEC 60068-2-11, EIA-364-31, MIL-STD-810 Method 509.7, and similar constant-environment salt spray, salt fog, and stable high-humidity procedures, the C Series is designed for users who want a simple chamber that is easy to run, easy to maintain, and focused on stable fog, stable temperature, and repeatable steady-state conditions.
Budget-Friendly Corrosion Chamber
A lower-cost Auto Technology chamber for laboratories that need compliant steady-state corrosion testing without stepping up to a more complex cyclic system.
Simple Touch-Screen Operation
Built to be straightforward to run for routine salt spray, salt fog, and stable humidity work.
Stable Fog. Stable Temperature. Stable Conditions.
Focused on the chamber functions that matter in day-to-day constant-environment corrosion testing.
Tell us your chamber size, the standard you run, your specimen loading needs, and any desired options.
Built for Straightforward Stable-State Corrosion Testing
The C Series is for laboratories that need a chamber that runs steady-state corrosion and humidity conditions correctly, consistently, and simply. It supports routine salt spray and salt fog work, including NSS, AASS, and CASS, and can also be configured for stable high-humidity exposures where the method requires a controlled, non-cyclic environment.
- ASTM B117 — Salt Spray (Fog)
- ISO 9227 NSS — Neutral Salt Spray
- ISO 9227 AASS — Acetic Acid Salt Spray
- ISO 9227 CASS — Copper-Accelerated Acetic Acid Salt Spray
- JIS Z 2371 — Salt Spray Testing
- GB/T 10125 — NSS / AASS / CASS
- ISO 7253 — Neutral Salt Spray
- IEC 60068-2-11 — Salt Mist
- EIA-364-31 — Salt Spray for Connectors
- MIL-STD-810 Method 509.7 — Salt Fog
- MIL-STD-202 Method 101 — Salt Atmosphere
- And related constant-environment salt spray and high-humidity procedures
Need more than steady-state testing? If your work requires cyclic corrosion capability, broader environmental transitions, or a more advanced control platform, review the full Auto Technology corrosion chamber lineup.
Key Features
The C Series is intentionally simple. It is built to deliver dependable steady-state corrosion and humidity performance with controls that make routine chamber operation easy.
- Stable temperature control
- Stable fog generation
- Easy-to-use touchscreen controls
Simple Touch Controls for Everyday Testing
The C Series touchscreen controls are built to make salt fog testing, stable-state corrosion testing, and routine humidity work easy to start, easy to monitor, and easy to repeat. Operators can select a method, start the chamber, and manage routine testing without digging through complicated software or manually handling core functions.
With a 6-inch color touchscreen, stored test methods, and clear operating screens, the C Series is designed for labs that want a chamber people can learn quickly and run consistently.
Start the test. The C Series handles the rest. That means less setup confusion, less operator variation, and a more straightforward day-to-day workflow in the lab.
Simple Chamber Operation
Preloaded methods and guided controls make routine testing easier to run the same way every time.
Stored Programs
Save recurring methods and everyday workflows so common tests are quick to start and easy to repeat.
Built-In Visibility
Live status screens, alarm prompts, and manual access functions help operators see what the chamber is doing.
Designed for real lab use: The controller supports test selection, test monitoring, purge functions, and manual control access without turning a steady-state corrosion chamber into a more complicated platform than it needs to be.
Sizes and Footprint
The C Series is offered in two standard sizes. Start with your part size, how many parts you need to test at once, and the floor space available in the lab.
Tell us your size. We will match the chamber to your part geometry, loading needs, and available space.
Review footprint and service clearance requirements early so utilities, operator access, and final chamber placement are planned correctly.
| Size | Internal Volume | Internal Dimensions (in) | Internal Dimensions (cm) | External Dimensions (in) | External Dimensions (cm) |
|---|---|---|---|---|---|
| 20 | 20 ft³ / 594 L | 50 × 29 × 25 in | 127 × 73 × 64 cm | 95 × 43 in | 242 × 110 cm |
| 40 | 40 ft³ / 1189 L | 100 × 29 × 25 in | 254 × 73 × 64 cm | 145 × 43 in | 368 × 110 cm |
Important: final installed footprint changes with chamber configuration. Solution tank position, exhaust routing, and power-vent requirements can all increase installed space needs beyond the basic chamber shell.
Confirm final layout before purchase if floor space is tight or if the chamber must fit around walls, drains, service access, or exterior vent routing.
Looking for room-prep guidance? Review the corrosion chamber room requirements guide.
Options, Racking, and Consumables
Available Options
| Option | What It Does | Image |
|---|---|---|
| Wet Bulb | Adds a wet bulb arrangement for users who want to check chamber humidity conditions during qualifying steady-state humidity work. | |
| Mixing Tank Convenience Package | Simplifies solution preparation and transfer with marked levels, fill controls, pumping, and air sparging for a more consistent lab workflow. This is especially helpful for labs mixing solution on site instead of buying pre-mixed salt solution. |
|
Practical buying note: If you are running routine NSS, AASS, or CASS work every week, solution handling matters more than people think. The mixing tank package helps standardize preparation, reduce operator variation, and make day-to-day use easier.
Racking and Sample Handling
The C Series can be configured with multiple specimen-support approaches depending on whether you are loading standard flat panels, suspending irregular parts, or trying to increase chamber capacity with added support levels.
Slotted Support Bars
Polypropylene bars with a central drainage channel and precision saw cuts at 15° or 6° from vertical for standard 3 × 6 in or 4 × 12 in panels.
Fiberglass Support Rods
Used to suspend larger or irregular samples near the top of the exposure zone. Typical maximum load is
20 lb per rod.
Fiberglass Support Angles
Versatile L-shaped supports used for samples, condensate collection tubing, or to support a slotted rack.
Typical maximum load is 20 lb per bracket.
Slotted Support Rack
High-capacity fiberglass rack sized 8.5 × 23 in with 40 total panel slots,
arranged in two rows at 15° from vertical.
Heavy Duty Mid-Level Shelves
Corrosion-resistant fiber-composite shelves that add capacity for smaller parts and help distribute heated air as it rises through the cabinet.
| Item | Description | Important Notes |
|---|---|---|
| Fiberglass Support Angles | L-shaped 1 × 1 in fiberglass brackets used for samples, collection tube support, or as support for a slotted rack. | Not intended for a total load over 20 lb per bracket. |
| Fiberglass Support Rods | 1/2 in diameter fiberglass rods used to suspend test samples with plastic ties near the top of the exposure zone. | Not intended for a total load over 20 lb per rod. |
| Slotted Support Bars | Polypropylene bars with drainage channel for 3 × 6 in or 4 × 12 in panels. Available with 15° or 6° saw cuts at 1.5 in spacing. | Because the bar material is softer, they are strongly recommended to be used on heavy duty shelves for added support. |
| Slotted Support Rack | Fiberglass rack sized 8.5 × 23 in with two rows of 20 slots for a total capacity of 40 panels. | Should be used with fiberglass support angles or heavy duty support shelves. |
| Heavy Duty Mid-Level Shelves | Fiber-composite shelves that provide added separation for smaller samples and support improved air movement through the chamber. | Useful when increasing capacity or when added support is needed under bars and racks. |
Support matters: If you are using slotted polypropylene bars, Auto Technology strongly recommends placing them on the heavy duty shelves for added support. That helps prevent sagging and keeps panel loading more stable over time.
Consumables and Store Support
Auto Technology also supplies the parts, consumables, and corrosion-test supplies needed to keep the chamber running properly. Customers can buy direct from the Auto Technology equipment parts store.
| Description | Notes |
|---|---|
| ASTM B117 Salt Solution – 55 Gallons | Pre-mixed 5% salt solution supplied for simpler routine chamber operation |
| CASS Salt Solution – 55 Gallons | Pre-mixed solution for copper-accelerated acetic acid salt spray work where the method requires it |
| Deionized Water – 55 Gallons | Bulk DI water supply support where needed |
| Maintenance Kit | Parts kit for routine maintenance |
| pH Meter Kit | Digital pH meter kit to check mixed solution and collected condensate in the cabinet |
| Salt Solution Start-up Kit | Starter kit including salt, funnels, graduates, specific gravity hydrometer, and salinometer hydrometer |
| NIST Calibration Certificate | Official traceable documentation for compliance audits |
| Training Class | Hands-on setup, use, and maintenance training |
Need replacement parts, corrosion test solutions, or chamber supplies now? Visit our equipment parts store to buy direct from Auto Technology.
Installation, Utilities, and Facility Requirements
The C Series is simple to operate, but it still depends on proper installation. Incorrect utilities, poor air quality, or bad exhaust routing will directly impact chamber performance and test validity.
Important: Salt spray testing is only as good as the environment inside the chamber. Poor air quality, improper water supply, or incorrect exhaust setup will affect results.
Electrical
- A qualified electrician must provide a lockable fused disconnect switch with slow-blow fuses in full operator view of the chamber
- The disconnect must not be mounted directly to the cabinet
- Run conduit and cable sized appropriately for chamber amperage and voltage
- Where supply quality is poor, a noise / surge suppressor is required
- Final amperage should always be confirmed against the quoted chamber configuration
| Model | 208/1/60 | 208/3/60 | 240/1/60 | 240/3/60 | 460/3/60 |
|---|---|---|---|---|---|
| 20 | 35A | 30A | 30A | 26A | 16A |
| 40 | 44A | 40A | 38A | 34A | 20A |
Electrical requirements shown above reflect common listed model configurations. Final amperage and utility needs should always be confirmed against the quoted chamber configuration and factory drawings.
Plumbing
- Chamber drain: 1.25 in O.D. PVC
- DI water supply: 3/8 in O.D. poly tubing from a pressurized DI water source, typically 25–100 psi
- Drain lines should discharge to an open drain
- Do not hard-plumb chamber drains
Compressed Air
- Compressed air supply: 3/8 in O.D. poly tubing from a clean, dry air source
- Typical pressure range: 30–50 psi
- Atomization stability depends directly on air quality
- Contaminated air will affect fog generation and test consistency
- Purge air is supplied through the compressed-air line
- Install filtration and drying upstream if plant air is not controlled
Ventilation Requirements
- Salt fog cabinet exhaust should vent directly to the exterior of the building whenever possible
- Do not connect the chamber exhaust to a shared plenum or duct serving other instruments
- Use 1.25 in PVC piping for the chamber vent connection
- Power vent required when exhaust runs exceed 15 ft
- Salt fog is corrosive — improper exhaust routing can damage surrounding areas and contaminate other equipment
Rear utilities matter: The chamber exhaust vent and gravity drain need to be routed and supported correctly. Maintain proper vent pitch, avoid vibration, and plan rear-service access before final placement.
Facility Environment
- Flat, level floor capable of supporting the installed chamber weight
- Nearby floor drain recommended for condensate and cleaning operations
- Room temperature: 20–25 °C (68–77 °F)
- Room humidity: 45 ±10% RH, non-condensing
- Never allow temperature around the cabinet to approach 0 °C (32 °F) or humidity to exceed 60%
Need room-prep help? See the corrosion chamber room requirements guide for room planning, utility prep, and final placement guidance.
FAQ
What is the C Series built for?
The C Series is built for stable-state corrosion testing, including salt spray, salt fog, and steady high-humidity exposures where the method calls for a controlled, non-cyclic environment.
Is the C Series only for NSS?
No. The C Series can be used for NSS, AASS, and CASS, along with other stable-state salt spray and salt fog procedures where the chamber setup matches the method.
Can the C Series run CASS?
Yes. The C Series can support CASS along with other steady-state corrosion methods. Confirm the exact method, temperature, and solution requirements with Auto Technology so the chamber is specified correctly for your program.
Can the C Series run high-humidity tests?
Yes. In addition to salt spray and salt fog work, the C Series can be used for stable high-humidity testing where the method calls for a controlled, constant environment rather than a cyclic profile.
What makes the C Series different?
It is the budget-friendly Auto Technology chamber for customers who want a straightforward, touch-screen-controlled platform for steady-state corrosion testing without the extra complexity of a more advanced cyclic system.
Can I add options?
Yes. Options include a wet bulb and mixing tank convenience package.
Is there a mixing tank convenience package?
Yes. The mixing tank convenience package simplifies solution preparation and transfer with marked levels, fill controls, pumping, and air sparging. If you do not want to mix on site, pre-mixed salt solution is also available through the store.
Are racks, shelves, and consumables available?
Yes. Auto Technology can supply support angles, support rods, slotted support bars, slotted support racks, heavy duty shelves, salt solution, CASS solution, DI water, pH meters, start-up kits, training, and other chamber supplies.
Can Auto Technology help with installation planning and support after purchase?
Yes. Auto Technology supports customers with chamber configuration guidance, installation requirements, calibration documentation, training, parts availability, and long-term service support.
Need a Straightforward Corrosion Chamber?
Whether you are qualifying coatings, launching a new lab, or adding routine steady-state corrosion capacity, the C Series is built for straightforward, spec-compliant salt fog, salt spray, CASS, and high-humidity testing without unnecessary complexity.
Share your standard, chamber size, sample mix, and desired options so we can help specify the right system.