Two people can review the same dust collector package and finish with different beliefs about where the duct ends, who lands the power cable, and where the compressed-air line stops. Those differences rarely surface during quotation; they surface when a crew is standing at the collector with a flange that does not match, a supply point that was never confirmed, or a discharge route nobody owns. An interface matrix is a coordination record rather than a standard scope split — it fixes what this project agreed to, at which connection point, and with what evidence.
Why the Interface Matrix Must Be Project-Specific
No single supplier-versus-buyer allocation fits every dust collector project. Project quality arrangements can be tailored to the characteristics of a specific project and its interested parties; ISO 10006 provides guidance for that tailoring (ISO 10006:2017), but it does not assign supplier or buyer scope, define collector interfaces, prescribe documents, or prove how any particular supplier works. The matrix therefore records an agreed split for this project instead of imposing a template.
What the matrix decides is narrower than a full scope of supply and more specific than a scope description. For each interface it should make the connection point, required inputs, deliverable, owner, reviewer, timing, evidence, and status explicit. When any of those fields is missing, the row is not yet a decision — it is an open item whose closer has not been named.
A matrix row is closed only when the connection point, the owner, and the evidence are all identified for this project.
Ductwork and Process-Air Boundaries to Define
Start with the agreed collector inlet or outlet reference, or whatever other connection reference the project drawings use. Around that reference sit the process sources served, the approved airflow and operating-condition data, the duct route and support scope, the connection geometry, and any measurement or test provisions. Each of these is an input that someone supplies and someone else accepts, so the matrix should name both sides rather than only the physical item.
PORVOO’s baseline framing for collector review depends on dust volume, particle behavior, operating hours, available space, targets, and maintenance needs. That framing does not prove duct design, fan selection, or collection performance, and it should not be read as a substitute for the project’s own design basis. The relevant product entry, the Modular Pulse Jet Dust Collector, anchors where collector-side connection references sit, while physical supply limits remain project-specific. For teams preparing the process, dust, facility, and interface inputs before quotation, the dust collection RFQ checklist for grinding and cutting workstations is one adjacent information-preparation route.
| Interface item | Project definition needed | Provider or owner to assign | Evidence to identify |
|---|---|---|---|
| Collector connection reference | Approved location, orientation, and geometry | Project-assigned party | Current arrangement or interface drawing |
| Process design input | Sources, dust/material context, approved airflow and operating data | Project-assigned party | Approved design basis |
| Duct route and supports | Limits of supply and site constraints | Project-assigned party | Approved layout and scope record |
| Connection work | Flanges, transitions, flexible elements, or other approved interface details | Project-assigned party | Current connection detail |
| Measurement or verification provisions | Agreed access, points, method reference, and records | Project-assigned party | Project test or verification plan |
Electrical Power and Control Boundaries to Define
IEC 60204-1 places the machine electrical-equipment boundary at the supply connection point (IEC 60204-1:2016). That gives the matrix a fixed anchor: state where the supply connection point is and what sits on each side of it. The standard does not supply project voltage, load, protection, wiring, signals, earthing, conformity conclusions, or supplier responsibility, so all such specifics belong in the approved project electrical documentation.
Beyond the incoming supply, the rows should cover isolation and protection, cable and termination scope, protective bonding or earthing, control signals, interlocks or permissives, alarms, remote interfaces, documents, and checks. The split between machine-side and plant-side design is a project decision; what matters is that each side is assigned a data provider, an installer, a reviewer, and a record.
| Interface item | Supplier or machine data | Site or plant data | Responsibility/evidence to assign |
|---|---|---|---|
| Incoming supply point | Approved connection and load requirements | Available supply and facility constraints | Supply, cable, termination, and current drawing |
| Isolation and protection | Approved machine-side needs | Plant-side arrangement and local requirements | Design, supply, installation, and review owner |
| Protective bonding or earthing | Approved machine interface | Site system information | Connection and competent verification owner |
| Controls and signals | Approved I/O or interface list | Plant control-system needs | Programming, wiring, testing, and records owner |
| Documents | Machine electrical information | Site electrical information | Current revisions and approval status |
Compressed-Air Boundaries to Define
ISO 4414 covers pneumatic fluid power systems and components on machinery but excludes factory compressors and typical plant distribution systems (ISO 4414:2010). The practical consequence for the matrix is that the machine pneumatic connection and the plant distribution boundary need to be described as two separate scopes, with an agreed point where one meets the other.
For that point, the supplier side is expected to state required pressure, demand profile, and air-condition needs, while the site side states what is actually available under relevant plant demand. Plant distribution, conditioning, isolation, drainage, and monitoring then need their own design and installation owners. Connection work and verification evidence — method, witness, and record — should be assigned rather than assumed. Values and component selections come from approved project documents, not from a generic template.
| Interface item | Machine-side data to provide | Plant-side data to provide | Responsibility/evidence to assign |
|---|---|---|---|
| Connection point | Approved location and connection detail | Distribution endpoint and route | Supply, installation, and connection owner |
| Pressure and demand | Approved required range and demand profile | Available conditions under relevant plant demand | Compatibility reviewer and current utility schedule |
| Air condition | Approved required condition | Available treatment and observed condition | Conditioning and monitoring owner |
| Distribution features | Machine-side limit | Plant piping, isolation, drainage, and monitoring information | Design and installation owner |
| Verification | Approved acceptance input | Site measurement or record availability | Method, witness, and record owner |
Collected-Material Discharge Boundaries to Define
The discharge connection is where collector scope most often meets an assumed downstream arrangement. The matrix should identify the collector discharge reference, the expected dust or material identity and relevant operating context supplied for review, the selected downstream receiver or transfer arrangement, the connection geometry, the controls or signals involved, access and maintenance needs, and the containment or disposal boundary.
A bin, valve, conveyor, disposal route, or hazardous-material suitability should not be treated as included unless the project documents say so. Material identity and relevant conditions generally require input from the buyer and authorized technical parties; they are review inputs for the project, and their accuracy affects what the discharge interface can be confirmed against.
| Interface item | Project definition needed | Provider or owner to assign | Evidence to identify |
|---|---|---|---|
| Collector discharge reference | Approved location, geometry, and operating context | Project-assigned party | Current arrangement or interface drawing |
| Dust or material input | Material identity and relevant project conditions | Buyer and authorized technical parties | Approved design basis |
| Downstream receiver or transfer | Selected project arrangement and scope limit | Project-assigned party | Approved process and scope document |
| Mechanical and control connection | Approved physical details and signals | Project-assigned party | Connection detail and interface list |
| Access, containment, and disposition | Project requirements and responsibility boundary | Authorized site and project parties | Site plan, responsibility record, and applicable requirements |
Freeze Owners, Deliverables, Evidence, and Open Items
The four interface families need to be reconciled against current drawings, specifications, quotations, and responsibility records — not against an earlier revision that still circulates in email. Each row should carry one status: approved, open, conflicting, or changed. From that status follows a named closer and the specific evidence that will update the project baseline.
Version control matters as much as the initial split. A quotation revision, an arrangement drawing revision, or a late site change can reopen a row that was previously considered settled, which is why the evidence column should reference the revision it was checked against. Installation, startup, acceptance, safety, and compliance remain project-specific and are not completed by the matrix alone; the matrix makes gaps visible and assigns them, while the underlying project documents still have to be executed and verified.
| Interface family | Agreed connection or scope boundary | Required inputs | Physical or document deliverable | Owner | Reviewer | Evidence/revision | Status and closeout action |
|---|---|---|---|---|---|---|---|
| Ductwork and process air | Confirm the collector connection reference and the limit between collector scope and site ductwork | Confirm process sources, dust or material context, approved airflow and operating data, and site route constraints | Confirm the current interface drawing, duct route and support scope, connection detail, and verification provision | Name the project-assigned party for each approved input and physical item | Name the authorized technical or project reviewer | Current approved design basis, layout, connection detail, and revision | Record approved status; otherwise identify the open, conflicting, or changed item and its named closeout action |
| Electrical power and controls | Use the machine supply connection point and confirm every additional control boundary | Confirm approved machine requirements, available site supply, facility constraints, and plant-control needs | Confirm incoming supply, cable and termination, isolation and protection, bonding or earthing, signal, drawing, and test deliverables | Name the project-assigned party for each supply, connection, document, and test responsibility | Name the authorized electrical, controls, or project reviewer | Current approved electrical interface document, drawing, schedule, and revision | Record approved status; otherwise identify the open, conflicting, or changed item and its named closeout action |
| Compressed air | Confirm the machine pneumatic connection and the limit of the plant compressor and distribution scope | Confirm approved machine pressure, demand, and air-condition requirements against available plant data | Confirm distribution endpoint, piping, conditioning, isolation, drainage, monitoring, connection, and verification deliverables | Name the project-assigned party for each plant-side and machine-side responsibility | Name the authorized pneumatic, facility, or project reviewer | Current approved utility interface document, site utility record, and revision | Record approved status; otherwise identify the open, conflicting, or changed item and its named closeout action |
| Collected-material discharge | Confirm the collector discharge reference and the limit to the downstream receiver, transfer, or disposition route | Confirm material identity, relevant operating context, downstream arrangement, access needs, and site requirements | Confirm the connection detail, receiver or transfer scope, controls or signals, access provision, and responsibility record | Name the project-assigned party for each approved input, physical connection, and downstream scope item | Name the authorized process, mechanical, site, or project reviewer | Current approved process basis, arrangement drawing, interface list, responsibility record, and revision | Record approved status; otherwise identify the open, conflicting, or changed item and its named closeout action |
Status, owner, and evidence should move together: a row marked approved without a named revision is not yet frozen.
Frequently Asked Questions
Q: The quotation includes the collector. How do we establish whether its site connections are included?
A: Define each agreed connection point and scope limit, then name the input, physical or document deliverable, owner, reviewer, and evidence for that boundary. Reconcile ductwork, electrical power and controls, compressed air, and discharge connections against the quotation and current drawings rather than assuming a standard supply split.
Q: Can one utility contractor’s scope close both power and compressed-air interfaces?
A: It can only close the items explicitly assigned and confirmed for the project. Electrical requirements must be compared with the site’s supply at the machine connection point, while pneumatic requirements must be compared with available plant air and distribution; record the separate cabling, piping, conditioning, connection, and verification deliverables.
Q: What should we clarify if the collector outlet is defined but downstream dust handling is not?
A: Identify the intended receiver or transfer arrangement, material and operating context, physical connection, controls, access needs, and containment or disposition boundary. Assign the downstream deliverables and their evidence instead of assuming a particular bin, valve, conveyor, or disposal route.
Q: What should govern an interface when the quotation and a revised drawing disagree?
A: The discrepancy needs an explicit owner and closeout action before that interface is treated as approved. Record its conflicting or changed status, reconcile the current scope and document revisions, and update the controlled matrix with the authorized confirmation.
