Automated SMT production line with conveyor segments reserved for each process stage
Every stage on an SMT line occupies a fixed slot of floor. The cleaning station is the one buyers plan last and retrofit first. Image: CHUANGQI image library.

Cleaning machines get planned into an SMT line layout last and get blamed first when the floor does not work. The cause is rarely the machine: the plan leaned on one printed outline where three numbers decide the outcome — machine outline, load envelope and floor load.

We audited the 21 equipment specification pages on chuangqitech.com on 28 October 2026 and counted what each page publishes. 17 of 21 list outline dimensions. 10 list a loadable size for board, stencil, basket or workpiece. 8 list both. On 13 of the 21 machines, one datasheet cannot answer “will it fit on my floor” and “will my product fit in the machine” at the same time. (Source: CHUANGQI published specification pages audit, 2026-10-28.)

Key takeaways

What 21 datasheets publish — and what they skip

The audit reads the value printed on each machine page once, and it reads values rather than field labels: the same fact appears as Max PCBA Size, Basket Size, Board Size or Max Workpiece Size depending on the machine family. The count depends on what you class as equipment — this audit covers the 21 machine pages and excludes the cleaning-fluid page. Weight appears on 15 of 21 pages and tank volume on 8; which figures a given page carries depends on the machine family, the options it is offered with, and when the page was last revised.

MachineOutline L×W×H (mm)Loadable size (mm)Weight
CQ-C9610 inline PCBA washer6560 × 1760 × 1660580 W × 450 L × 80 H workpieceapprox. 2600 kg
CQ-C743 offline batch washer1400 × 1100 × 1830810 × 560 × 100 basket, two-tierapprox. 600 kg
CQ-C758 PCBA washer1860 × 820 × 1200300 × 300 board400 kg
CQ-C750 stencil cleaner1300 × 1400 × 1850750 × 750 × 40 stencil (above 760 custom)500 kg
CQ-C770 squeegee cleaner1000 × 1000 × 1600560 × 600 × 600 basket (custom on request)260 kg
CQ-C730S screen cleaner1000 × 700 × 1730not published300 kg
CQ-C900 dry-ice blaster590 × 400 × 515hand-held range50 kg

Source: CHUANGQI published specification pages, read 2026-10-28. Ranges and options shift per family; the audit counts published values only.

The gaps are not carelessness. The outline answers a building question and the load size answers a process question, and the two get reviewed by different people. A buyer who plans from the outline alone gets the building question right and leaves the process question to chance — which is how a line ends up with a machine that fits the room but not the product.

SMT assembly line in production, showing conveyor path and stage spacing on the factory floor
Conveyor direction fixes where the cleaning station sits relative to placement and reflow. Image: CHUANGQI image library.

Four variables that decide the cleaning station footprint

Machine outline: the printed L×W×H describes the machine bare, without exhaust routing, operator platforms or cage extensions. The CQ-C9610 prints 6560 × 1760 × 1660 mm, and the conveyor direction locks where the machine sits between placement and reflow, so line length is committed before anything else. How much extra room the station needs depends on the service side you choose, the drain position, the exhaust duct route, and whether operators load from the side or inline.

Load envelope: the load envelope (the box your product actually occupies inside the machine) is the number the process engineer needs and the number most often missing. The CQ-C9610 caps it at 580 W × 450 L × 80 H mm; the CQ-C756 fixture and pallet cleaner lists a 1000 mm basket diameter with a 480 mm maximum workpiece height. Keep in mind this 80 mm ceiling covers board thickness, the tallest component and any carrier rail added together — it is not clearance above your tallest part. Whether a given panel fits depends on board outline, carrier design, component height distribution, and any masking stack the process adds.

Floor load: weight decides where the machine may go, not merely whether it fits. Published weights run from about 40 kg on the CQ-C700 pneumatic nozzle cleaner to approx. 2600 kg on the CQ-C9610 — a spread wide enough that an upper-floor placement is a structural question before it is a layout one. What your slab must carry depends on machine weight, tank fill (tank volume is published on 8 of 21 pages, up to 60 L on the CQ-C756), the tooling sitting inside at the time, and the floor’s own rated load.

Service access: pumps, filters, spray headers and drains all need a side that opens. A machine pushed flush against a wall will run, and it will also convert every filter change into a rigging job. Reserve the service side in the layout, not in the intentions.

Planning from the outline alonePlanning with all three checks
AdvantagesFast; needs one number per machine; enough for a first-pass block layout before machines are shortlistedProduces a floor the machine can actually be installed on and serviced in; catches product-fit conflicts before the order, not after delivery
LimitationsBlind to doorways, floor construction and service sides — and on 13 of our 21 pages the load envelope is not printed at all, so the plan inherits a gapSlower; needs board sizes and carrier drawings that may not exist at layout stage, and a supplier answer for the missing datasheet fields
Not suitable forUpper-floor or fixed-doorway installations—

Five questions to send with the RFQ

Each question closes one of the gaps the audit found. Sent together, they force the missing fields into writing before the order instead of after delivery:

Planning from published numbers alone is not suitable for an upper-floor installation or a room with a fixed doorway. In those cases walk the delivery route and check the floor construction with a tape measure before you commit a position — a printed millimetre never moved a pallet up a staircase.

The three checks transfer across the range — inline PCBA washer, offline batch washer, stencil cleaner, dual-frame stencil cleaner, squeegee cleaner, fixture and pallet cleaner, automatic nozzle cleaner, pneumatic nozzle cleaner, dry-ice blaster, substrate dust-removal machine — because every one of them occupies floor, carries weight and takes product.

Send the board outline, the carrier drawing and your line layout through the RFQ form, and our application engineers will point out which of the three numbers your plan is missing, with a quote within 24 hours. For the footprint behind these checks, the specification sheet on the CQ-C9610 Inline PCBA Water Cleaning Machine page is the anchor. The process sequence around the machine sits in the new SMT line cleaning process plan, and the throughput side of the same layout decision in planning cleaning capacity for the ramp.

Frequently asked questions

How much floor space does an inline PCBA cleaning machine need?

More than its outline. The CQ-C9610, for example, prints 6560 × 1760 × 1660 mm, and that conveyor path must stay clear end to end; on top of it come the service side, the exhaust route and the drain access. How much to add on each side depends on the service side chosen, the ducting plan and whether loading is inline or from the side, so treat the printed outline as the minimum, not the plan.

What size board can a PCBA cleaning machine take?

It depends on the machine family. The published loadable sizes in this audit run from 300 × 300 mm boards on the CQ-C758 and CQ-C760, through 750 × 750 × 40 mm stencils on the CQ-C750, up to a 580 W × 450 L × 80 H mm workpiece on the CQ-C9610 and a 1000 mm basket on the CQ-C756. For stencil frames, sizes up to 736 × 736 mm are supported. Ask for the loadable size of the specific model rather than the chamber volume of the family.

Can I plan the layout from the datasheet alone?

On 8 of our 21 machine pages, yes — footprint and load size are both printed. On the other 13, one of the two is missing, so request the missing figure in writing with the RFQ. The one combination you should not accept is a footprint without a load size on a machine that must take your product: that is the single gap most likely to become a retrofit.

Does the published weight include a filled tank?

Ask before you rely on it. Tank volume is published on 8 of the 21 pages audited, up to 60 L on the CQ-C756, and water adds roughly one kilogram per litre before detergent. Where a datasheet prints only a dry weight, the difference matters most on upper floors and on light-duty mezzanines, and it is a one-line question to close at quotation stage.

About the author

Anne is an Application Engineer at CHUANGQI. She works with EMS and OEM manufacturers on cleaning-process questions: analysing flux and residue findings, sizing the right machine configuration (inline or batch, stencil, nozzle or dry ice), and supporting remote commissioning, acceptance testing and process documentation.

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