S7020T Terminal Insertion Machine: Automating AC Clip and Terminal Insertion by Southern Machinery
The S7020T Terminal Insertion Machine from Southern Machinery automates AC clip, spring clip and terminal insertion on THT PCB assembly lines: two servo-driven heads place bulk or reel-packed terminals at up to 12,000 CPH, replacing a manual clip bench of at least five operators while holding vertical insertion error in the +/-0.01 class. This buyer guide covers the verified S7020T datasheet, vibration bowl versus reel feeding, inline conveyor integration into a complete PCB assembly line, an illustrative ROI calculation, a pre-quotation selection checklist and the six questions procurement and manufacturing engineering teams ask before ordering.
Sep 8, 2026 · Updated Sep 8, 2026 · Jason Wu

S7020T Terminal Insertion Machine | Southern Machinery
The S7020T Terminal Insertion Machine is a dual-head, servo-driven THT automation platform from Southern Machinery that inserts AC clips, metal spring clips and terminals from bulk (vibration bowl) or reel packaging at up to 12,000 CPH, replacing a manual clip-insertion bench of at least five operators. It is built for EMS and electronics manufacturers who still seat hardware terminals by hand on chargers, power adapters, automotive electronics, small appliances and 5G boards — and who measure the cost in headcount, tilted clips and downstream rework.

Cover: the S7020 series insertion platform from Southern Machinery (Shenzhen, China).
What is a terminal insertion machine used for?
A terminal insertion machine seats through-hole metal terminals — AC clips, spring clips, PIN eyelets and similar hardware — into pre-drilled PCB holes at machine speed and with repeatable insertion force and depth. Unlike SMT placement, these parts are springy, polarized and usually delivered in bulk or on reels, which is why they are among the last operations to be automated on a THT line.
On the S7020T, two servo-driven insertion heads place components at up to 12,000 CPH. Vertical insertion error is in the ±0.01 class on 0.001 mm/pulse servo motion, and programming is done online with visual programming and visual correction, with EXCEL data import and USB interface input. Standard PCB support is 380 × 280 mm, with enlarged sizes customizable.
Why is manual AC clip insertion more expensive than it looks?
Manual clip insertion fails in ways that pass visual inspection and surface only at test. The S7020T product page names six recurring costs:
| Hidden cost | What it looks like on the floor |
|---|---|
| Pure handwork | AC clips and terminals are pressed in one at a time — the station scales only with headcount |
| Crooked, floating and missed clips | Manual press force varies by operator; tilted or shallow seats fail at wave solder or final test |
| Polarity and position errors | Clips have an orientation; mistakes surface downstream, where rework is most expensive |
| Turnover resets the skill curve | Clip insertion feel takes weeks to learn; every new hire restarts the defect curve |
| The line balances around the bench | SMT runs at machine speed, then boards queue at the manual terminal station |
| Labor cost compounds | Every volume increase means more seats at the clip bench |
S7020T specifications that matter for buyer evaluation
All values below are quoted from the official Southern Machinery S7020T datasheet and remain subject to final technical confirmation against your board size, component mix and line layout.
| Parameter | S7020T value |
|---|---|
| Speed | 12,000 CPH (two insertion heads) |
| Insertion heads | 2 |
| Material packaging | Terminal in bulk package or reel package |
| Feeding system | Vibration bowl feeder / reel feeder |
| Terminal thickness | ≥ 0.5 mm, ≤ 1.2 mm |
| Vertical error | ±0.01 |
| Motion accuracy | 0.001 mm/pulse |
| PCB size | 380 × 280 mm (enlarged size customizable) |
| PCB requirement | Insertion hole 0.5 ± 0.1 mm larger than component lead |
| Component distance | Minimum 2 mm between components |
| Programming | Online visual programming, visual correction, EXCEL data input |
| Data input | USB interface import, manual entry |
| Power supply | Single 220 VAC, 50/60 Hz, 2 KVA |
| Equipment weight | 1,200 kg |

Production reference: inline clip insertion platform (IST-M6000-2)
Southern Machinery also publishes a factory sheet for the inline clip insertion platform used as a production reference. These figures vary by configuration:
- Insertion speed: 10,000 PCS/H (platform reference)
- PCB size: Max 410 × 360 mm / Min 210 × 310 mm; thickness 1.12 – 2.89 mm
- Insertion heads: 2; component size 1–40 × 1–40 mm, height ≤ 19 mm
- Insertion angle: 0° – 360°
- Board conveyor: guide-rail automatic board-in, left to right (inline)
- Display: 14-inch color LCD; air source 0.01 – 1 MPa; noise ≤ 75 dB
- Machine size 1700 × 1500 × 1800 mm; power 2.2 kW; weight approx. 1,800 kg
Bulk or reel terminals: which feeding should you specify?
The S7020T supports both packaging formats on the same machine: a vibration bowl feeder for bulk terminals and a reel feeder for taped components. That matters because terminal supply chains are mixed — hardware spring clips often arrive loose, while reel-packed terminals suit higher-volume, cleaner handling.
Specify bowl feeding when your terminal geometry is stable and volumes are high per part number. Specify reel feeding when you want taped traceability and faster reloading. If your component mix changes weekly, the S7020T is part of the unified S7020 platform (S7020T / E / P / S): switching the feeder and gripper moves the machine between terminal, eyelet, pin and tact-switch insertion.
How does the S7020T fit into a complete PCB assembly line?
Terminal insertion sits between SMT placement/reflow and wave or selective soldering. The S7020T runs inline via a guide-rail automatic conveyor with left-to-right board flow, or standalone as a cell feeding a manual load station.

A typical Southern Machinery THT sequence is: board loading → axial insertion → radial insertion → terminal / clip insertion (S7020T) → odd-form insertion → wave or selective soldering → board handling and unloading → inspection. Because the S7020T is a dual-head platform on a unified series, it can be added into an existing insertion line or specified as part of a new THT cell. Browse the full machine catalog at file.autoinsertion.com and the product range at www.smthelp.com.

What is the ROI case? (example calculation)
Use this framework with your own labour rate, shift pattern and volume. It is an example only — results depend on configuration, board mix and utilization, and are subject to final technical confirmation.
Annual manual cost = operators x hourly loaded cost x hours/shift x shifts/day x working days
Machine throughput = 12,000 CPH x utilization x hours available
Payback (months) = machine investment / (annual manual cost avoided + rework saved) x 12Example (illustrative only): a clip bench staffed by 6 operators on two shifts, at a loaded cost of USD 6/h, 8 h per shift, 250 working days:
- Annual manual cost = 6 × 6 × 8 × 2 × 250 = USD 144,000 / year
- Southern Machinery states one S7020T replaces at least five to ten manual inserters, and that operator training to full mastery takes 1 day
- Against a machine investment of, for example, USD 90,000 (placeholder — request your quotation), simple payback on labour alone is roughly 7.5 months; adding avoided rework and test escapes shortens it further
Do not treat any figure above as a guarantee. Send your terminal samples, board size and monthly volume and Southern Machinery will return a configuration-specific calculation.
Selection checklist before you request a quotation
- Terminal drawings or samples — thickness must fall between 0.5 mm and 1.2 mm
- Board size and thickness — standard support 380 × 280 mm; enlarged customizable
- Hole tolerance — insertion hole should be 0.5 ± 0.1 mm larger than the component lead
- Component pitch — minimum 2 mm between components
- Packaging — bulk (bowl) or reel, or both
- Line layout — inline conveyor (left to right) or standalone cell
- Monthly volume and shift pattern — drives head count and feeder configuration
- Utilities — single 220 VAC, 50/60 Hz, 2 KVA; machine weight 1,200 kg
How new boards are programmed and operators trained
Programming is online visual programming with visual correction, plus EXCEL data import and USB/manual entry — so a new board is taught in minutes rather than hours, which is what keeps high-mix clip production economical. Southern Machinery's deployment process is: component review → technical consultation with feasibility and quotation within 24 hours → feeder and gripper configuration → free installation and one-day operator training → 24/7 after-sales support with 1-day spare-part lead time.
FAQ
What components can the S7020T insert?
Terminals, AC clips and hardware spring clips in bulk or reel packaging, with terminal thickness from 0.5 to 1.2 mm. Typical applications are chargers, power adapters, automotive electronics, small appliances and 5G boards.
How fast is it compared with manual insertion?
The S7020T inserts at 12,000 CPH with two heads. One machine replaces at least five to ten manual inserters, per Southern Machinery.
Can it feed both bulk and reel-packed terminals?
Yes. The feeding system supports vibration bowl feeders for bulk terminals and reel feeders for taped components on the same machine.
How is a new board programmed?
Through online visual programming with visual correction, plus EXCEL import and USB data input. Teaching a new board takes minutes rather than hours.
Can it run inline?
Yes. The production reference platform uses a guide-rail automatic conveyor with left-to-right board flow; standalone operation is also available. Board sizes up to 410 × 360 mm are supported on the inline platform, and enlarged sizes can be customized.
How do I get a price and delivery time?
Email info@smthelp.com or WhatsApp +86 136 0256 2576 with your terminal samples or drawings, board sizes and monthly volume. Quotation and delivery schedule follow technical confirmation — typically the same working day.
Next step: send your terminal samples
Southern Machinery has designed and manufactured SMT and THT PCB assembly automation equipment in Shenzhen, China since 2011, serving 237+ global customers with SMT, THT, wave soldering, board handling and inspection solutions, plus global service, spare-parts support and professional training.
Send the clips or terminals you insert, your board size and your monthly volume — you will receive a feeder configuration, quotation and delivery schedule within 24 hours.
Email: info@smthelp.com | WhatsApp: +86 136 0256 2576 | Web: www.smthelp.com | Catalogs: file.autoinsertion.com

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