FAQ Center

No. Placement speed is important, but real production efficiency also depends on feeder setup, software usability, changeover time, operator skill, reflow stability, and inspection workflow. For high-mix low-volume production, changeover speed often matters more than maximum placement speed.

It depends on your BOM. If your typical PCB uses 30 to 50 component types, your feeder configuration should support that range or allow convenient feeder changes. Consider both 8 mm tape feeders and larger formats (12 mm, 16 mm, 24 mm) for ICs and connectors. Also factor in whether you need to run multiple products without feeder changes.

It depends on your production volume and product complexity. If the factory only produces simple boards in very small batches, a desktop pick and place machine may be enough. If the factory handles repeated orders, multiple PCB models, and delivery pressure, a compact industrial pick and place machine is usually more suitable due to better feeder capacity, accuracy, and production stability.

Not necessarily. Compact industrial machines are designed to support real production while still saving space. They typically occupy 2-4 m² and are engineered for efficient operator workflow within limited floor space. The real question is whether your workshop layout can accommodate a production-oriented workflow, not just the machine footprint.

For high-mix low-volume SMT, a compact industrial pick and place machine is usually better because it typically provides stronger feeder capacity, better job management software, and more stable repeat production. Desktop machines may struggle with frequent changeovers and the feeder variety needed for high-mix production.

Start by defining your product types and production volume. Then assess available floor space and workflow constraints. The key steps are: 1) Identify your PCB size and component range, 2) Calculate required feeder count, 3) Plan material flow (PCB loading → printing → placement → reflow → unloading), 4) Choose equipment that fits both your budget and space, 5) Design a layout that minimizes operator movement and material handling. Read our full SMT line planning guide for detailed steps.

A full compact SMT line makes more sense when your production bottleneck is not just one machine but the overall workflow. If printing, placement, transfer, and reflow are not working together as one coordinated process, upgrading a single machine may not solve the real problem. A full line ensures balanced capacity and smoother material flow.

Limited floor space changes operator movement patterns, feeder preparation logic, transfer flow, and changeover rhythm. You need to think about: 1) Compact equipment that supports production-level output, 2) Efficient operator paths that minimize walking, 3) Smart feeder storage near the line, 4) Buffer zones that don't consume production floor space.

The most frequent mistakes include: 1) Planning around machines instead of workflow, 2) Treating a compact line as a smaller version of a large line, 3) Ignoring changeover frequency in line design, 4) Not planning for future expansion, 5) Underestimating the importance of material handling and operator flow. Read our common mistakes guide for more details.

A manual stencil printer is suitable for prototyping and very small batches (1-10 boards per run) where low cost is the priority. A semi-automatic printer is recommended for small-batch production (10-100+ boards per run) because it provides pneumatic clamping, more consistent squeegee pressure, and better repeatability. For compact SMT lines doing regular production, a semi-automatic printer often provides the best balance of cost and print quality.

For mixed-technology PCBs with both fine-pitch components (0402, 0.4 mm QFN) and larger components, 0.12 mm is a common starting point. If fine-pitch is dominant, use 0.1 mm. If large connectors and power components need more solder, consider a step stencil (thicker in large-pad areas, thinner for fine-pitch) or optimize aperture designs to balance solder volume.

Solder paste bridging between pads is commonly caused by: 1) Excessive squeegee pressure forcing paste under the stencil, 2) Poor stencil-to-PCB gasket (board not properly supported), 3) Aperture design that is too wide for the pad spacing, 4) Solder paste that is too thin or has degraded. Solutions: reduce squeegee pressure, check board support and stencil alignment, review aperture width-to-pitch ratio, and verify paste viscosity.

For compact SMT production with standard lead-free soldering, a 6-8 zone oven is common. More zones provide finer temperature control, which is important for complex boards with mixed component sizes. For simple boards with mostly passive components, 4-6 zones may be sufficient. The key is not just zone count but whether the oven can maintain a stable thermal profile at your target throughput.

For SAC305 lead-free solder, a typical profile includes: Ramp to 150°C at 1-3°C/sec, soak at 150-180°C for 60-120 seconds, reflow peak at 235-250°C, with Time Above Liquidus (TAL, >217°C) of 60-90 seconds. Cooling should be controlled at -2 to -4°C/sec. Always verify with a thermal profiling tool on your actual PCBs, as board size, component density, and oven characteristics affect the actual profile.

Calculate your oven throughput: chain speed divided by PCB length (including spacing between boards). Compare this with your pick-and-place machine's actual output rate. If the oven processes fewer boards per hour than the placement machine can output, the oven is your bottleneck. Solutions include optimizing the thermal profile to allow faster chain speed, reducing PCB spacing, or upgrading to a longer oven with more zones.

The real cost goes beyond the machine price and includes: feeder configuration (often a significant portion of the total), software licenses, training, installation, maintenance, spare parts, and the cost of production downtime during setup. Also consider long-term factors like changeover efficiency, production stability, and scalability — a cheaper machine that causes frequent downtime can cost more over time.

Changeover frequency is one of the most important design parameters. If you change jobs daily, your line needs: quick feeder change capability, software that stores and recalls job programs easily, adequate feeder storage near the line, and a layout that supports rapid material flow changes. A line designed for weekly changeovers will perform poorly under daily changeover pressure. Read our changeover planning guide for more.

More machines do not automatically create a better line. If workflow is weak — meaning material flow is congested, operators walk too far, or process stages are unbalanced — adding more equipment can create coordination pressure, layout congestion, and hidden downtime. Workflow-first thinking means designing the production process before choosing specific machines, ensuring each piece of equipment serves a clear role in the overall flow.

Yes, many customers start with a single pick and place machine and expand as production grows. The key is to choose equipment that supports future expansion: look for machines that can be integrated into a full line later, with compatible conveyor systems, standard SMEMA interface, and scalable software. Planning for expansion from the start — even if you buy one machine now — saves significant cost and disruption later.