S-T4-44/50F 4-Head Pick and Place Machine for Scalable SMT Assembly

Buying a mounter you'll outgrow in a quarter is an expensive way to save money. If placement is the one step that caps your production line, every lot pays for that ceiling as volume climbs. The S-T4-44/50F carries four heads, handles 6,000–11,000 CPH, supports 44 or 50 feeders, and holds ±0.05 mm accuracy—so an EMS or ODM cell can scale placement as orders grow without replacing the machine.

The cost you haven't named

Undersized placement caps growth. A mounter rated below your target ramp forces a replacement just as volume climbs, doubling capital outlay and downtime.
Feeder limits force rebuilds. Too few slots turn program changes into mechanical swaps that eat the CPH you paid for.
Accuracy protects first-pass yield. ±0.05 mm mounting and 0.01 mm positioning keep QFP/BGA placement clean at pitch ≥0.3 mm, where touch-up is costly.
One variant cannot fit all boards. Choosing 44 vs 50 feeders or the wrong PCB format misaligns the cell with your actual mix.
Buying on price alone resets the clock. A mounter chosen purely on capital cost is usually the first machine replaced—and the second purchase costs more than the difference you saved.

The Four-Step Scalable Placement Audit

Project the volume ramp. List today's CPH and the next two quarters' target, so 6,000–11,000 CPH and 4 heads cover the ramp without a premature replacement.

Tally placement hours lost. Record lots delayed by a shared or slow mounter plus rework from misplacement, then price that tax per shift to size the machine.

Verify the tolerance envelope. Confirm ±0.05 mm mounting and 0.01 mm positioning against your tightest QFP/BGA pitch (≥0.3 mm), because placement accuracy protects margin as volume rises.

Match feeders to board mix. Confirm NXT, Yamaha and vibration feeder support plus IC tray and 44 or 50 slots so a program change is a reload, not a platform swap.

The vehicle: S-T4-44/50F 4-Head Pick and Place Machine

The S-T4-44/50F is a four-head mounter for cost-effective SMT assembly, placing components from 0201 to BGA at 6,000–11,000 CPH depending on the variant. Both versions share the same vision and drive platform, so moving from the 44F to the 50F is a straightforward capacity increase—no re-training required.

Project the volume ramp → scalable speed. The 44F runs 6,000–7,000 CPH and the 50F reaches 8,000–11,000 CPH, so the cell scales placement as orders grow.
Tally placement hours lost → 4 independent heads. Four heads remove the shared-mounter queue and keep reflow fed at a steady rate across LED, power, automotive, consumer and medical PCBA.
Verify tolerance envelope → ±0.05 mm accuracy. ±0.05 mm mounting and 0.01 mm positioning hold QFP/BGA placement without touch-up on boards at 1–3 mm thickness.
Match feeders to mix → 44 or 50 slots. NXT, Yamaha and vibration feeders (12–44 mm) plus IC tray give 44 slots on the 44F and 50 on the 50F, so changeover stays a reload.

Specification note: exact feeder count, board format and throughput should be confirmed at quotation, because they depend on your component mix, board size and target CPH.

Specifications

| Parameter | S-T4-44F | S-T4-50F |

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

| Placement heads | 4 independent | 4 independent |

| Speed | 6,000–7,000 CPH | 8,000–11,000 CPH |

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

| Positioning accuracy | 0.01 mm | 0.01 mm |

| Feeders | 44 | 50 |

| Components | 0201 to QFP/BGA, pitch ≥0.3 mm | Same |

| PCB thickness | 1–3 mm | 1–3 mm |

| Power | 220 V, 50/60 Hz, ~600 W | Same |

The loop: re-project the ramp each quarter

Volume climbs quarter over quarter, so build a review loop. Each quarter, repeat the Four-Step Scalable Placement Audit, compare sustained CPH against your baseline, and review feeder occupancy with your line lead. When the ramp pushes past 7,000 or 11,000 CPH, confirm you have the right variant before the ceiling throttles the cell. Keep a running record of actual CPH per quarter vs. the quoted figure; if the gap widens for two consecutive quarters, your component mix has changed—and the usual fix is a re-planned feeder map, not a new machine. The S-T4-44/50F's 44/50 feeder range and IC tray turn that loop into a reload, not a platform swap—and that's what lets placement scale with orders.

Your next step

Send us your current CPH, ramp target and tightest pitch. We will return a placement review showing whether the 44F or 50F fits, which feeders to specify, and what to confirm at quotation. Reach Jason at jasonwu@smthelp.com or on WhatsApp +86 13602562576.

FAQ

What speed does the S-T4-44/50F reach?

6,000–7,000 CPH on the 44F and 8,000–11,000 CPH on the 50F, with 4 independent heads.

How many feeders does it hold?

44 slots on the 44F and 50 on the 50F, via NXT, Yamaha, vibration feeders and IC tray.

What components can it place?

0201 to 1206 chips, diode, triode, SOT, QFP and BGA at pitch ≥0.3 mm.

What board types fit?

LED, power, automotive, consumer and medical PCBA at 1–3 mm thickness.

Is accuracy enough for BGA?

Yes — ±0.05 mm mounting and 0.01 mm positioning hold QFP/BGA placement at pitch ≥0.3 mm.

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

LinkedIn: linkedin.com/in/smtsupplier | YouTube: youtube.com/c/Smthelping