Technical Parameters and Design Deliverables
A complete design package grows in detail through several stages. Each stage has its own deliverables and review point, so the owner can confirm or correct the direction before more work is done.
| Stage | Main work | Typical deliverables |
|---|---|---|
| Brief | Collect user requirements, process description, classes and constraints | Requirements list, assumptions |
| Concept | Arrange rooms and flows, set grades and pressure steps | Concept layout, flow diagrams, grade and pressure map |
| Basic design | Refine room sizes, equipment positions, doors and airlocks | 2D plans, preliminary bill of materials, 3D model |
| Detailed design | Prepare drawings for production and construction | Plans, elevations, ceiling plan, door and window schedule, details |
| Review and approval | Owner and consultants check and comment | Marked-up drawings, updated issue |
| As-built | Update drawings after installation | As-built set for qualification and maintenance |
Common layout rules we apply:
- Separate flows: people, materials, products and waste use separate routes where the risk requires.
- Gradual steps: classes step down through airlocks, with pressure steps of about 10–15 Pa in pharmaceutical rooms.
- Corridors and doors: corridors of about 1.5 m for people and wider for carts, with doors sized for the largest regular load.
- Equipment space: clear space around machines for operation, cleaning and maintenance.
- Service access: technical corridors, mezzanines or walkable ceilings to keep service work outside the clean rooms.
Our 3D models help check heights, clearances and clashes between walls, ceilings, equipment and services before production begins.
Our staff reply promptly and in plain language, and our designers can adapt standard layouts to your building and your process.
Cross-Border Delivery and Localized Construction Support
Design is a service that crosses borders easily, but good design still needs local knowledge. We work by video meetings, shared drawings and clear review rounds, so owners and consultants anywhere can take part.
- Information: you send floor plans, building data, process descriptions, equipment lists and local rules.
- Concept review: we present a concept and discuss it by video, with comments recorded.
- Development: we refine the design and issue drawings in stages.
- Coordination: we share drawings with your HVAC, electrical and structural teams and adjust interfaces.
- Production and installation drawings: final drawings with position codes match the factory-made parts.
Local conditions: a layout must respect local building, fire, accessibility and health rules, ceiling heights, column grids, door widths and utility positions. We ask for this information at the start, and your local engineer confirms compliance. Metric or imperial units, drawing standards and language can be adapted to your market.
Because the same company designs and manufactures, the drawings are made for parts that we can actually produce, and installers receive drawings that match the parts in their hands.
For overseas clients, we suggest a regular review schedule, for example one video meeting per stage, with comments recorded in a shared log. A simple log of decisions prevents repeated discussions and keeps everyone, including your consultants, working from the same current drawings.
Staged issues of drawings can also be arranged to match your tender or permit schedule.
Our staff reply promptly and in plain language, and our designers can adapt standard layouts to your building and your process.
Quality Control and Certification
Design quality is checked, not assumed. Every drawing set goes through an internal review before it reaches you, and we ask you and your consultants to review it as well, so errors are found early.
| Check | What is reviewed | Why it matters |
|---|---|---|
| Requirements | Layout against the user requirements | Right rooms and sizes |
| Flows | People, material, product and waste routes | Contamination control |
| Grades and pressure | Class and pressure map against airlock design | Stable cascade |
| Dimensions | Room, door, corridor and equipment clearances | No site surprises |
| Interfaces | Walls, ceilings, services and equipment | Fewer clashes |
| Bill of materials | Quantities against drawings | Accurate supply and cost |
| Version control | Revision numbers, issue log | Clear current set |
Documents available: drawing sets, bills of materials, design review records, door and window schedules and, on request, 3D models and views.
Our drawings support design qualification, but they do not replace the approval of your quality unit, your consultant or your local authority. We say this clearly, because responsibility for compliance with local rules stays with the owner and the local engineer. Customer audits of our process are welcome.
Consultants and authorities often review drawings in detail, so we keep a clear revision log, with dates and a list of changes for every issue. Our design process can be explained by video, and our factory can host audits or live video tours, where you can see how drawings become parts.
We recommend agreeing the review checklist with your consultant at the start, so that comments come early and not at the end.
After-Sales Service and Response Capability
Layouts change as businesses grow. A new product needs a new room, a new machine needs a wider door or a new standard needs an extra airlock. We keep all drawings, models and revision logs for each project, so later changes start from accurate information.
- Fast communication: design questions answered in English by email, phone or messaging.
- Updates: drawings can be revised for modifications, with clear revision marks.
- As-built support: we can update drawings to match what was built.
- Expansion planning: new rooms can be planned to connect to the existing layout.
- Spare parts and extra supply: parts are identified from the drawings and position codes.
Typical post-handover design requests:
| Request | What we do |
|---|---|
| Add a room or line | Prepare an extension layout and updated drawings |
| Move a wall or door | Check pressure and flow effects, update drawings |
| Prepare drawings for an audit | Provide current drawings and schedules |
| Plan a class upgrade | Review layout and airlocks, advise on changes |
We suggest keeping the drawing set up to date after every change, since outdated drawings cause delays at audits and in maintenance.
Drawings are living documents. We suggest marking every change, even small ones, on a master set, and sending us a copy when the change is significant. When you plan a new room or a modification, we start from the updated set and check the effects on pressure, flow and clearances.
For urgent cases, such as a failed audit item, we discuss priorities and respond quickly with marked-up drawings. Matching parts for modifications are identified from the original records and position codes.
Our engineers can also join a video call with your team to review a proposed change.
Commercial Terms, Warranty and Lifecycle Cost
Design is a small part of the project cost, but it decides much of the rest. A few extra days of layout work can save weeks of construction and a large share of the energy and cleaning cost over the life of the plant.
| Item | Our approach |
|---|---|
| Design scope | Defined in the quotation: concept only, full drawings, 3D, or as-built |
| Design fee | Explained clearly: included with the supply price or charged separately, depending on the project |
| Review rounds | Number of rounds stated in advance, extra rounds quoted if needed |
| Trade terms | FOB, CFR or CIF for supply, defined in the quotation |
| Payment | Commonly a deposit with balance as agreed; final terms in the contract |
| Ownership of drawings | Stated in the contract |
Ways a good layout lowers lifecycle cost:
- Right-sized rooms: unneeded area wastes HVAC energy and cleaning time.
- Class zoning: using higher classes only where needed lowers construction and running cost.
- Short routes: efficient flows reduce gowning, cleaning and handling time.
- Room to grow: a layout that allows extension saves rebuilding.
Process design, HVAC design, electrical design, structural design and permits are outside our scope unless agreed. We coordinate the interfaces.
When comparing design offers, check what each deliverable includes: concept only, construction drawings, 3D, bill of materials, review rounds, as-built updates and the right to use the drawings. Some offers look cheaper because they leave out details that cost more later.
We provide a clear scope and are glad to explain every item and to prepare alternative options, such as a concept-only package at the start.
Real Factory Strength Behind Our Design
Drawings are most useful when they match what can be built. 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 design clients: our designers work next to the production team, so they know panel sizes, profile details, door types and equipment dimensions, and can check feasibility quickly. The design, the bill of materials and the factory parts match, which cuts site errors.
Customers can ask to see sample drawings and 3D models, review projects similar to theirs and visit the factory. A showroom video is available for remote review.
Our designers prepare layouts and 3D models, our engineers review sealing, structure and interface details, and our production teams make the parts shown on the drawings. Export coordinators prepare packing and documents for shipments to many countries.
Customers return for new rooms and extensions, and we can share sample drawings, 3D views and photos 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 building and your process.
Cleanroom Layout & 3D Design FAQ
Q1. What information do you need to start a layout?
Floor plan or building dimensions, ceiling height, process description, equipment list, required classes, staff numbers and local rules.
Q2. Do you provide 3D models?
Yes, 3D models and views can be prepared to check the design and explain it to others. Formats are agreed at the start.
Q3. How many revisions are included?
The number of review rounds is stated in the quotation. Extra rounds can be added if needed.
Q4. Do you design HVAC and electrical systems?
No. We coordinate with your HVAC and electrical engineers, who remain responsible for those systems.
Q5. Can you work from my architect's drawings?
Yes. We review them, suggest changes for buildability and prepare matching detailed drawings.
Q6. Who owns the drawings?
Ownership and use rights are stated in the contract.
Q7. How do I start?
Send your information and goals, and we will propose a design plan and a quotation.
Q8. Can you check my existing design?
Yes. We can review a layout for flows, pressure steps, clearances and buildability, and send marked-up comments.
Q9. How long does a concept layout take?
It depends on complexity and how quickly information arrives. We give a schedule after reviewing your brief.
Our staff reply promptly and in plain language, and our designers can adapt standard layouts to your building and your process.
We are glad to explain every line of our quotation and to prepare alternative options if you need to adjust the budget.

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