S-T8-72/80F 8-Head Pick and Place Machine for High-Volume SMT Assembly

A placement line quoted at 15,000 CPH quietly runs at half that when a single QFP changeover eats the feeder set and one of the heads keeps missing fine-pitch pads. Manual tweaks slow the next job, and the backlog grows while the mounter sits idle between setups. The S-T8-72/80F is built for exactly this: eight independent heads and up to 80 feeders keep component coverage high and changeover short, so quoted throughput stays close to real throughput on automotive, LED, power, and medical boards.

The cost you haven't named

• Idle heads during changeover. When one head is down for a nozzle swap or a feeder runs empty, the whole machine slows; quoted CPH assumes all heads are working, not just some.
• Fine-pitch misses. Components below 0.3 mm pitch and packages past 40×40 mm need accurate placement; a mounter that drifts off pad creates rework that surfaces only at ICT or in the field.
• Feeder starvation on mixed jobs. Low feeder counts force constant loading and unloading, so high-mix lines lose more time to material handling than to actual placement.
• Rework from wrong coverage. Missing 0201 through BGA in one platform means a second machine or hand placement, adding labor and defect risk.

The Four-Head-Count Placement Audit

Frame the purchase as a placement audit so the configuration matches today's mix and next year's volume. Call it the Four-Head-Count Placement Audit.

1. Count the active heads. Tally how many heads actually place parts per job, not the nameplate total, so you size the machine for the work that runs most often rather than the occasional peak.

2. Map the component envelope. List every package from 0201 to BGA, the minimum pitch (down to 0.3 mm), and the largest body (up to 40×40 mm) so placement accuracy and nozzle set match the real board set.

3. Score the feeder demand. Count feeders needed per job across NXT, Yamaha, and vibration feeders plus IC trays; higher feeder counts cut reloads and keep all heads fed on high-mix runs.

4. Confirm the accuracy budget. Set mounting accuracy at ±0.05 mm and positioning at ±0.01 mm, then verify the vision and nozzle change keep that budget across a full shift, not just the first board.

The vehicle: S-T8-72/80F 8-Head Pick and Place Machine

The S-T8-72/80F is an 8-head SMT mounter for high-volume assembly, offered as the S-T8-72F (72 feeders) and S-T8-80F (80 feeders), placing 0201 to BGA at up to 15,000 CPH.

• Count the active heads → eight independent heads. All eight heads place in parallel, so a single nozzle swap on one head does not stall the others the way a shared-head design does.
• Map the component envelope → wide component coverage. It places 0201, 0402, 0603, 0805, 1206, diodes, triodes, SOT, QFP, and BGA, with lead pitch down to 0.3 mm and bodies up to 40×40 mm.
• Score the feeder demand → up to 80 feeders. NXT, Yamaha, and vibration feeders (12/16/24/32/44 mm) plus IC tray support keep components loaded on long, mixed jobs without mid-run reloads.
• Confirm the accuracy budget → ±0.05 mm mounting. CCD-per-head vision holds ±0.05 mm mounting and ±0.01 mm positioning across the run, holding fine-pitch QFP and BGA on pad.

Specification note: exact CPH, feeder count, PCB size, and accuracy should be confirmed at quotation, because they depend on your component mix, board dimensions (up to 500×450 mm), and shift volume.

Specifications

| Parameter | S-T8-72F | S-T8-80F |

| --- | --- | --- |

| Placement heads | 8 independent | 8 independent |

| Speed (CPH) | 10,000–12,000 | 12,000–15,000 |

| Mounting accuracy | ±0.05 mm | ±0.05 mm |

| Positioning accuracy | ±0.01 mm | ±0.01 mm |

| Feeder count | 72 | 80 |

| PCB size (W×L) | 500×450 mm, 1–3 mm | 500×370 mm, 1–3 mm |

| Component range | 0201 to BGA, pitch ≥0.3 mm | 0201 to BGA, pitch ≥0.3 mm |

| Power | 220V 50/60Hz | 220V 50/60Hz |

| Weight | 750 kg | 850 kg |

The loop: re-audit placement every quarter

Product mix shifts as new board families arrive. Build a loop: every quarter, repeat the Four-Head-Count Placement Audit, compare actual CPH against the quoted baseline, and review feeder utilization and first-pass placement yield with your line lead. If a new package type appears or volume steps up, adjust the nozzle set and feeder layout before the next ramp rather than after. The S-T8-72/80F's high feeder count and independent heads give you margin to absorb that change — the loop is what keeps the machine matched to the work instead of drifting away from it.

Your next step

Send us your typical board set, component list, and target CPH. We will return a placement review showing where the S-T8-72/80F fits, which feeder and head configuration to specify, and what to confirm at quotation for your line. Reach Jason at jasonwu@smthelp.com or on WhatsApp +86 13602562576.

FAQ

What component sizes can the S-T8-72/80F place?

It places 0201, 0402, 0603, 0805, 1206, diodes, triodes, SOT, QFP, and BGA, with lead pitch down to 0.3 mm and packages up to 40×40 mm.

What is the placement speed?

The S-T8-72F runs 10,000–12,000 CPH and the S-T8-80F runs 12,000–15,000 CPH, depending on component mix and board size.

Which feeders are supported?

NXT, Yamaha, and vibration feeders in 12/16/24/32/44 mm widths, plus IC tray support, with up to 80 feeder positions on the 80F model.

What accuracy can I expect?

Mounting accuracy is ±0.05 mm with ±0.01 mm positioning, held by per-head CCD vision across the full run.

How large a PCB can it handle?

Up to 500×450 mm on the 72F and 500×370 mm on the 80F, at 1–3 mm thickness.

Jason Wu

Founder & CEO, Southern Machinery (Shenzhen Southern Machinery Sales and Service Co., Ltd.)

Email: jasonwu@smthelp.com / info@smthelp.com

WhatsApp: +86 13602562576

Catalog & manuals: file.autoinsertion.com | Machine photos: ph.smthelp.com

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