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عربىTechnical Parameters for Aerospace Cleanrooms
Requirements come from the hardware owner, space agency or customer specification, often using standards such as ISO 14644-1 and contamination control documents like ECSS-Q-ST-70-01. Your contamination control plan sets the final specification. The table gives common references.
| Area | Typical reference | Typical materials from us |
|---|---|---|
| Spacecraft integration hall | ISO 8, sometimes ISO 7 | Panels, wide doors, HEPA Supply Boxes |
| Small-satellite and CubeSat assembly | ISO 7 or ISO 8, local ISO 5 | Modular PODs, Laminar Air Flow |
| Optical and sensor assembly | ISO 5 at workstation, ISO 7 surrounding | Flush panels, Laminar Air Flow, Air Shower |
| Avionics and electronics assembly | ISO 7 or ISO 8, ESD control | Anti-static panels, Pass Box |
| Gowning and airlocks | Graded to match the hall | Air Shower, interlocked doors |
| Equipment entry | Large door or removable wall section | Wide door, removable panels |
Typical design points:
- Temperature and humidity: often about 22 ± 3 °C and 30–60 % RH, as specified by the hardware owner.
- Particle limits at 0.5 µm per m³: ISO 5 is 3,520, ISO 7 is 352,000 and ISO 8 is 3,520,000.
- Outgassing: materials near hardware are often screened by outgassing tests, such as ASTM E595, so material selection should be discussed early.
- ESD: floors, work surfaces and wall finishes are often designed to dissipate static safely.
- Door size: doors and airlocks must be sized for the largest hardware and its transport frame.
Layout reminder: plan the hardware entry route first, including transport frames, hoists and door heights. Personnel flow, gowning and small parts transfer are then arranged around this main route.
Cross-Border Delivery and Localized Construction Support
Aerospace and space projects frequently run on tight program schedules with fixed integration dates. We plan shipments backward from the date when hardware must enter the room, and we keep delivery dates visible to your team.
- Hardware and class review: we confirm hardware size, transport frames, class and equipment list.
- Drawings: layout, elevations, ceiling plans and door schedules are agreed before production.
- Production and numbering: panels, doors and profiles are produced and labeled by position.
- Packing and shipping: flat-pack loading in 20GP or 40HQ containers, with documents and FOB, CFR or CIF terms.
- Installation support: manuals, video guidance or a supervising engineer.
Local construction: a trained local contractor can install modular aerospace cleanrooms. Key coordination points are floor loading, door and airlock size, ceiling height, crane or hoist routes, power, data and gas openings. These must be agreed before the walls are closed.
Some aerospace and defense related projects involve export control or end-user checks under applicable laws. We handle such requirements according to the law and ask for the information needed. Your project team remains responsible for approvals, permits and local building rules.
For programs with fixed launch windows, delays in the cleanroom can affect the whole schedule. We therefore suggest agreeing a clear milestone plan at the start, including drawing approval, production, shipping, installation and cleaning, and we update it as the project moves forward.
Staged shipments can also be arranged when your building handover is phased, which prevents panels from waiting too long in storage.
Quality Control and Certification
Aerospace customers expect traceability and detailed documentation. Wall panels and doors are not "space qualified" products, and we do not claim this. Our contribution is a consistent, well-documented cleanroom envelope that supports your contamination control plan.
| Control step | Inspection | Why it matters |
|---|---|---|
| Incoming materials | Sheet, face, core, profiles, gaskets, glass | Known quality |
| Panel production | Dimensions, flatness, bonding, edge sealing | Tight, flush joints |
| Surface inspection | Scratches, bubbles, color, cleanability | Low particle generation |
| Material review | Review of material data against your outgassing and ESD needs | Suitable selection |
| Door and equipment | Function test of doors, Air Shower and Pass Box | Ready for installation |
| Packing | Count, labels, condition | Complete delivery |
Documents available: material specifications, factory inspection records, filter data and, where available, reports on fire or surface performance.
If your specification requires outgassing data, surface resistance values or particular test methods, please give us the requirement at the start. We will check what the selected materials can support and say clearly if a test must be done by a third-party laboratory. Customer audits and sample approval are welcome.
Aerospace customers often request detailed supplier information and may audit sub-tier suppliers. We answer questionnaires openly, supply sample panels, joints and gaskets for your own tests, and welcome factory visits or live video tours. Batch records are kept for each project, which allows later questions to be traced to the production date and material source.
If your specification requires documents that do not exist for our standard materials, we will say so early and discuss options, such as additional tests by a recognized laboratory.
After-Sales Service and Response Capability
Space hardware is built over months or years, and the cleanroom must keep the same conditions throughout. When a seal or a door needs attention, we aim for a fast, clear answer with matching parts, using the drawings and records for your project.
- Fast communication: technical questions answered in English by email, phone or messaging.
- Remote diagnosis: photos or videos of doors, joints, gaskets and windows help us assess problems.
- Spare parts: gaskets, hinges, handles, door leaves, windows, lights and HEPA Filters.
- Modifications: doors can be widened, walls opened for equipment or rooms extended for new programs.
- Engineer visits: by arrangement.
Typical issues and responses:
| Observation | Possible cause | Suggested action |
|---|---|---|
| Particle counts increase | Filter leak, open penetration, surface wear | Leak-test filter, reseal, repair surface |
| Pressure differential changes | Gasket wear, new opening, loaded filter | Replace gasket, reseal, check filter |
| Static events | Dry air, worn ESD surfaces | Check humidity, clean or replace surfaces |
We recommend keeping baseline test reports from commissioning, since they help compare later measurements. Any repair near flight hardware should follow your contamination control procedures.
Where a repair is required near flight hardware, planning is as important as speed. We suggest sending us photos, the room name and a short description, and agreeing the repair method with your contamination control team before any work begins. Our engineers will check the original drawings and propose a method that limits dust and debris.
Replacement parts are made to the original specification, so appearance and sealing remain consistent. For urgent cases, we discuss the fastest shipping option and prepare documents in advance.
Keeping spare gaskets, sealant and door hardware on site is a sensible precaution.
Commercial Terms, Warranty and Lifecycle Cost
The cleanroom envelope is a small part of a space program budget, but a failure can delay integration and testing. The best comparison is total risk and schedule impact, not only unit price. We state clearly what we supply and what we do not.
| 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, color, ESD options, door width |
Cost considerations:
- Class: higher classes need more air supply, filtration and better sealing.
- Hall size: large volume rooms use more air and energy.
- Door and airlock size: oversized openings need stronger frames and gasket details.
- Modularity: rooms can be reconfigured between programs.
Structural steel, cranes, test chambers, HVAC, monitoring and permits are outside our supply. Warranty exclusions are stated clearly in the contract.
When comparing quotations, make sure each supplier lists the same items: panel core, face material, thickness, profiles, door size and hardware, glass, ceiling panels and packing. These details explain most price gaps and affect cleanliness performance.
We provide itemized quotations and can show alternatives, such as a higher class for the integration area and an economical envelope for support rooms, so that your budget is used where contamination risk is highest. Phased pricing is available for multi-room facilities.
We are glad to explain every line of our quotation.
Real Factory Strength for Aerospace Projects
Aerospace customers need dependable suppliers who communicate clearly. Pharma United Co., Ltd., founded 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, modular PODs, HEPA products |
| Service | Design, manufacture and installation support |
Why this helps aerospace buyers: large panel output supports big halls with uniform finish, and our experience across pharmaceutical, electronics and laboratory projects means we understand strict contamination control. Because panels, doors, windows and equipment come from one source, interfaces match.
We are open about scope: for large structural halls and test facilities, we work with specialists. Samples, references, factory visits and video tours are available on request.
Our engineers answer technical questions directly.
Our designers prepare layouts and drawings, our engineers review sealing and interface details, and our production teams run dedicated lines for panels, doors and equipment. Export coordinators prepare packing and documents for shipments to many countries.
Customers in high-technology industries return for new rooms and spare parts, and we can share photos and videos of completed rooms on request. Visitors are welcome at our factory by arrangement.
Our staff reply promptly and in plain language, and our designers can adapt standard layouts to your program.
Aerospace & Satellite Assembly Cleanroom FAQ
Q1. Which ISO class is used for satellite assembly?
ISO 8 is common for general integration, ISO 7 for more sensitive hardware and ISO 5 for local critical optics. The hardware owner's contamination plan decides.
Q2. Can you build a large integration hall?
We supply the cleanroom envelope, doors, windows and air equipment for suitable halls. Large structures, cranes and test chambers are specialist work, and we coordinate with the relevant suppliers.
Q3. Are your panels space qualified?
No building product carries such a qualification. We supply smooth, sealed, cleanable surfaces and records that support your plan.
Q4. What about outgassing?
If your specification requires screened materials, please share it early. We review our materials against it and tell you plainly what can be supported.
Q5. Can a modular POD serve CubeSat assembly?
Yes, modular rooms are often used for small satellites and sensors when the class and size suit the hardware.
Q6. Do you supply anti-static solutions?
We offer anti-static panel options and can help you plan ESD control, which must be verified on site.
Q7. How do I get a quotation?
Send your hardware size, target class, layout and destination country.
Q8. Can the room be extended for a new program?
Yes. Modular panels allow rooms to be enlarged or re-planned with limited disruption.
Q9. Do you offer samples?
Yes, samples can be sent for your own tests.
Q10. Can you help with layout?
Yes, we prepare layout proposals around your hardware entry route, which your contamination control team can adjust.
Q11. How are export-control questions handled?
We follow applicable law and may ask for end-user information as part of normal compliance.
