English
русский
Français
Español
عربىTechnical Parameters for API Plant Cleanrooms
ICH Q7 does not set particle limits, so API cleanroom classes are chosen by risk, product and the regulator's expectations. Non-sterile API final steps are often built to Grade D or ISO 8, some to ISO 7, and sterile APIs need aseptic grades. The table shows common references only.
| Area | Typical design reference | Typical materials from us |
|---|---|---|
| Final isolation, drying, milling | ISO 8, sometimes ISO 7, with dust control | Chemical-resistant panels, HEPA Supply Boxes |
| Sampling and dispensing | Laminar flow or extraction booth | Weighing Booth, Laminar Air Flow |
| Final packing room | ISO 8, controlled humidity | Panels, flush doors, Pass Box |
| Sterile API aseptic area | Grade A in Grade B (EU) or ISO 5 in ISO 7 | Flush panels, interlocks, HEPA |
| Gowning and airlocks | Graded to match area | Air Shower, interlocked doors |
| Pressure | Contained, dust-generating rooms negative to corridor; clean areas positive | Airtight envelope |
| Temperature / humidity | As needed for product stability, commonly 18–26 °C / 30–60 % RH | Stable panel cores |
Specific API considerations:
- Chemical resistance: choose faces that tolerate solvents, acids, alkalis and cleaning agents in your process.
- Fire performance: rockwool cores and fire-rated doors are often specified near solvent areas.
- Static and dust: anti-static finishes and dust extraction help in powder handling rooms.
- Containment: highly potent or cytotoxic APIs need dedicated containment design.
Safety note: explosion-protected areas must be designed by qualified specialists. Panels are not certified explosion-proof equipment.
Cleaning agents and process chemicals should be listed in the user requirement specification, so the design team can select compatible materials from the beginning and avoid costly replacement later.
Cross-Border Delivery and Localized Construction Support
API plants are often built in industrial parks with demanding schedules, and the cleanroom portion forms only a part of a much larger construction program. We coordinate delivery around the building handover, utility installation and equipment placement dates to prevent idle time on site.
- Drawing and interface review: we mark penetrations for pipes, ducts and cables on shop drawings.
- Phased shipment: critical rooms, such as final isolation and packing, can be shipped first.
- Protected packing: panels, glass and filters are protected for sea freight.
- Documents: packing list, commercial invoice and certificate of origin, with FOB, CFR or CIF terms.
- Installation guidance: drawings, a manual, video support or supervising engineer.
Local construction: contractors working in chemical plants may not know cleanroom details, so we explain the main points. For example, avoiding gaps around pipe penetrations, sealing the base and ceiling junctions, and installing doors only after the floor is complete. Pipework and electrical work should be finished before final sealing.
Local safety, fire and environmental rules apply, and your engineer remains responsible for approvals.
For overseas API projects, import rules for chemical-plant materials and customs documentation can be strict. We prepare accurate descriptions of the goods and a complete packing list to help your broker. For large plants, we suggest regular progress meetings between our engineer, your project manager and the main contractor, which keeps drawings, deliveries and site work aligned and reduces the chance of delays.
Staged shipments can also be arranged to match your construction progress.
Quality Control and Certification
API facilities are inspected against ICH Q7 and national rules, with focus on contamination control, cleaning, documentation and process validation. We do not describe our panels as "API certified", because no such approval exists for building materials. What we provide is consistent products and good records.
| Control step | Inspection | Why it matters |
|---|---|---|
| Raw materials | Sheet metal, HPL, core, profiles, gaskets | Known quality |
| Panel production | Dimensions, flatness, bonding, edge sealing | Tight, durable joints |
| Chemical suitability | Review against your list of solvents and cleaners | Surface suitability |
| Door and window | Gasket contact, hardware, interlock function | Reliable sealing |
| Equipment check | Booth and Pass Box function test | Ready for installation |
| Packing | Count, labels, condition | Complete delivery |
Documents available: material specifications, inspection records, filter data and, where available, fire or surface performance reports. These can be added to your qualification files.
Tell us your process chemicals early. We cannot guarantee that every face will resist every solvent, so we compare your list with the material data and, when needed, send samples for your own testing. Supplier audits are welcome.
API customers often send supplier questionnaires and request audits. We complete questionnaires honestly, send samples of faces, joints and gaskets for your own chemical testing, and welcome factory visits. Records are kept for each batch, so later questions about a particular room can be traced back to production.
If your project needs a specific fire test report or a statement about material composition, please ask early. We will confirm what exists and what does not, so your documentation is accurate and complete.
After-Sales Service and Response Capability
API plants run continuously, and damage from chemicals, impact or heavy cleaning can appear over time. Our service is organized around fast identification of the problem and supply of matching spare parts.
- Quick support: technical questions answered in English by email, phone or messaging.
- Remote diagnosis: photos and videos of discolored or damaged surfaces help us suggest a cause.
- Spare parts: panels, doors, gaskets, hinges, windows, lights and HEPA Filters.
- Expansion: adding a room, an airlock or a new line is easy with modular panels.
- Maintenance advice: cleaning and inspection checklists for your staff.
Typical issues:
| Observation | Possible cause | Suggested action |
|---|---|---|
| Surface discoloration | Solvent splash or unsuitable cleaner | Review agents, replace panel if needed |
| Joint opening | Impact or thermal movement | Reseal, check frame |
| Door gasket damage | Chemical attack or wear | Replace with suitable gasket |
We recommend keeping a small stock of gaskets and sealant, since they are inexpensive and avoid downtime.
In chemical environments, the first signs of trouble are often small color changes, softened sealant or slightly open joints. We encourage operators to take regular photos of such areas, which creates a simple record over time. When you send us these photos with the room number and the process chemicals in use, we can usually suggest a likely cause and a suitable repair.
Replacement parts are made to the original specification, so appearance and performance match the existing system. For urgent cases, we discuss the fastest shipping option and prepare the documents in advance.
Spare gaskets, sealant and filters are a sensible investment for any plant that cannot afford long stoppages.
Commercial Terms, Warranty and Lifecycle Cost
In an API plant, the controlled rooms are a small part of the investment compared with reactors, utilities and environmental systems, but failures in the clean areas can delay a whole batch or an inspection. A reliable envelope is a cost-effective way to lower that risk.
| Item | Our approach |
|---|---|
| Quotation | Itemized by room and component, with drawings |
| Trade terms | FOB, CFR or CIF, defined in the quotation |
| Payment | Commonly a deposit with balance before shipment or against documents; final terms in the contract |
| Warranty | Defined by component group in the contract |
| Lead time | Given after drawing confirmation |
| Customization | Size, thickness, face material, door options |
Cost considerations:
- Chemical resistance: a more resistant face costs more at the beginning and saves repair later.
- Fire performance: rockwool cores and fire-rated doors cost more but may be required by local code.
- Airtightness: reduces HVAC energy for humidity and temperature control.
- Modularity: new products and capacity changes are common in API plants.
Process equipment, solvent handling, explosion protection, HVAC and permits are not part of our supply. Warranty exclusions, such as damage from chemicals not disclosed at the quotation stage, are stated clearly in the contract.
We suggest checking quotations line by line for items such as face material, core type, thickness, door hardware, glass and packing. Differences here explain most price gaps between suppliers, and they affect long-term performance. We are glad to prepare alternative options, so you can see the cost and durability trade-offs for each area of the plant.
Real Factory Strength for API Projects
Chemical and pharmaceutical groups building API plants need partners who deliver on time and talk plainly. Pharma United Co., Ltd., established in 2006, runs two factories in Kunshan and Qianjiang covering 20,000 m² with more than 60 staff. We are a manufacturer, not a trading company.
| Indicator | Information |
|---|---|
| Experience | 20+ years in cleanroom engineering |
| HPL cleanroom panels | About 250,000 m² per year; China's largest HPL cleanroom panel manufacturer |
| Container shipments | More than 1,000 forty-foot high-cube containers per year |
| Location | Kunshan, about 30 km from Shanghai |
| Product range | Panels, doors and windows, equipment, PODs, HEPA products |
| Service | Design, manufacture and installation support |
Why this helps API buyers: large and stable production keeps quality consistent across many rooms, and one-source supply of panels, doors and equipment means interfaces match. We also tell customers plainly when a requirement, such as explosion protection or high containment, needs a specialist.
Factory visits, samples, references and video tours can be arranged.
Our team includes designers, engineers, production supervisors and export coordinators who work together on each order. This structure gives customers a single point of contact and keeps technical answers consistent from drawing review to delivery.
Customers in chemical and pharmaceutical industries return for expansions and spare parts, and we can share photos and videos of completed rooms on request.
We also host visitors at our factory, where you can see panel pressing, door assembly, inspection and packing.
Our staff reply to technical questions promptly and in plain language.
API Manufacturing Facility FAQ
Q1. Which cleanroom grade do API plants need?
ICH Q7 does not set particle limits. Many non-sterile API final steps use ISO 8 or Grade D, some use ISO 7, and sterile APIs require aseptic grades. Your risk assessment and regulator decide.
Q2. Which steps need controlled environments?
Mainly isolation, purification, drying, milling, sampling and packaging, where the API is exposed to the environment.
Q3. Are your panels solvent-resistant?
Resistance depends on the face material and on the specific chemical. Send us your list so we can check and suggest suitable faces.
Q4. Do you supply explosion-proof products?
No. Explosion protection must be designed by qualified specialists. We provide fire-rated options for the envelope where required.
Q5. Can you help with potent compound containment?
We can supply the envelope and Pass Boxes, but containment design for potent or cytotoxic APIs needs specialist input.
Q6. Can you build in stages?
Yes. Modular panels let you add rooms and lines as the plant grows.
Q7. How do I get a quotation?
Send your process flow, room list, floor plan and destination country.
Q8. Can I use your panels near solvent areas?
Panels with rockwool cores and fire-rated doors can be used for the envelope where code permits, but solvent areas need an overall explosion-protection concept designed by qualified specialists.
Q9. Can an existing chemical plant room be converted?
Often yes. Modular panels can be installed inside existing buildings after checking structure, ceiling height and utilities.
Q10. Do you offer samples?
Yes, samples can be sent for your own chemical resistance tests.
