Quick answer: The S-300B is a fully automatic radial lead molding and taping machine from Southern Machinery. It takes loose radial components (capacitors, LEDs, diodes) from a vibratory bowl, forms the leads to 2.5, 3.5 or 5.0 mm pitch as standard, tests polarity (and capacitance/resistance when the matching tester is fitted), ejects failures and delivers taped output, boxed or on a reel, at a published 180 ± 20 components per minute. It suits THT lines that feed a radial inserter and want to control their own tape specification.
Why is taping the step nobody costs on a THT line?
A radial inserter only runs well when every part arrives the right way up, at the right lead pitch, in the right pocket of the tape. Hand taping turns that into a human judgement repeated thousands of times a shift. According to the S-300B product page, a radial electrolytic capacitor inserted the wrong way round can pass a simple continuity check and fail weeks later in the field. Buying pre-taped reels also means the tape is a specification you did not control. Taping in-house moves pitch, hole diameter, taping height and polarity direction inside your own process.
How does the S-300B work?
The product page walks through nine stations, in the order parts travel:
- Bulk feed: a vibratory bowl orients loose parts onto a linear track, with a bowl eye and a track eye regulating feed.
- Lead spread: opens the two leads before anything touches the body.
- Lead forming: an integrated die presses the leads to 2.5, 3.5 or 5.0 mm as standard. A pitch change is a die change.
- Polarity test: checked before the part is committed to tape.
- Re-orientation: wrong-way parts are turned rather than rejected; positive-lead-first or negative-lead-first is selectable.
- Value test: with the matching tester fitted, capacitance and resistance are compared with a window you set.
- Lead trim: over-long leads are cut so tape height stays uniform.
- Reject ejection: failed parts drop into a separate scrap chute.
- Tape and pack: sprocket holes punched, top tape heated, leads seated, output boxed or coiled.
What are the S-300B specifications?
Values below are from the S-300B product sheet and presentation deck on the product page.
| Parameter | Published value |
|---|---|
| Function | Automatic lead forming and taping of radial components, with testing and sorting |
| Taping speed | 180 ± 20 PCS/minute |
| Component diameter | Ф6 - Ф10 mm standard; Ф4 - Ф10 range with two fixture sets (Ф4-Ф6, Ф8-Ф10) |
| Component length | 5 - 30 mm |
| Formed lead pitch | 2.5 / 3.5 / 5.0 mm standard; 7.5, 10, 15 mm and above ordered separately |
| Tape hole pitch / diameter | 12.7 mm standard / 4.1 mm |
| Taping height | 17 - 21 mm |
| Packaging | Boxed or coiled |
| Drive | Servo control system replacing the traditional clutch |
| Cams | Imported, 0.01 mm grinding accuracy |
| Power / air | 220 V / 50 Hz / 1.6 kW; 4 - 5 kg/cm² |
| Dimensions (L × W × H) | 2200 × 1200 × 1500 mm |
| Weight | 700 - 900 kg |
What do the servo drive and imported cams give you?
The page states the drive uses a servo system in place of the traditional mechanical clutch, which it identifies as the assembly that wears and slips on this machine class. All cams are imported with 0.01 mm grinding accuracy, and the frame is an imported aluminium profile with a designed service life of 15+ years. The control side offers real-time status monitoring and an alarm display.
What throughput can you plan on?
Arithmetic on the published band at 100 percent availability: 160 PCS/min is 9,600 per hour, 180 is 10,800 and 200 is 12,000. Real output is lower after bowl refills, reel changes and die changes, so plan from the bottom of the band.
Which points should you confirm before ordering?
The product page openly lists parameters that differ between documents: control system (single-chip with LCD versus PLC with touch screen), the speed framing, whether the Ф4-Ф6 fixture set is standard or ordered, taping height, and whether coiled output is standard. Confirm each against the current drawing for your configuration.
What to send for a quotation
- Component type, body diameter and length, lead length
- Target formed lead pitch
- Tape specification your inserter needs (hole pitch, taping height, polarity direction)
- Boxed or reel output
- Whether you need capacitance/resistance testing
FAQ
What does the S-300B do?
It forms the leads of radial components, tests and sorts them, and tapes them.
How fast is it?
The product sheet publishes 180 ± 20 components per minute.
Which lead pitches are standard?
2.5, 3.5 and 5.0 mm. 7.5, 10 and 15 mm and above are ordered separately.
Can it check polarity and value?
Polarity is tested and can be re-oriented. Capacitance and resistance testing works when the matching tester is fitted.
Does it output reels or boxes?
Both boxed and coiled output are listed; confirm which is included in your configuration.
Read the full product page: S-300B Radial Lead Molding Taping Machine
Request a quotation: info@smthelp.com or WhatsApp +86 136 0256 2576.