SC-900 Multi-Blade PCB V-Cut Separator for LED and THT PCBA Lines

An LED strip panel leaves wave soldering as one rigid sheet, and an operator breaks it apart by hand — ten boards, ten snaps, ten chances to crack a joint near the score line. Those rejects rarely fail at test; they surface as dead segments inside a finished luminaire. Hand-breaking also sets your separation rate, which means it quietly sets your packing rate. The SC-900 cuts every V-cut line on a panel in one pass, so depaneling stops being a manual station and becomes a conveyor step.

The Cost You Haven't Named

• Latent joint damage. Hand-breaking bends the board across the score line. The stress travels into SMD terminations and THT fillets next to the V-groove, and the crack opens later under thermal cycling.
• A headcount pinned to a repetitive task. Manual separation needs an operator per shift. That is a recurring cost attached to a step that adds no product value.
• Throughput set by hands, not by the line. Upstream placement and soldering can run faster than a person can break panels, so the slowest station in the cell is the one doing the least skilled work.
• Edge quality that varies by operator. Tear-out and fiberglass fringing depend on how the board was snapped, so edge consistency is not repeatable across shifts or between people.
• Floor space for staging. Panels waiting to be broken and boards waiting to be packed sit in racks on both sides of the station, consuming space that a conveyor pass would not need.

The Four-Point V-Cut Separation Audit

Treat depaneling as an audit rather than a purchase order, and the specification writes itself. Call it the Four-Point V-Cut Separation Audit.

1. Classify the panel geometry. Record board width, length and thickness for every panel family, then check the score-line design: the machine cuts to roughly one third of board thickness, so the residual web on your panel must match that ratio.

2. Size the cut rate. Convert panels per shift into linear millimetres per second across the score lines, and confirm the figure against the variable 300–500 mm/s conveyor range rather than against a single headline number.

3. Set the blade budget. Estimate weekly cuts, divide into the published blade life, and price SKD11 replacements and lead time into the running cost before you commit to the station.

4. Plan the line handshake. Decide where the separator sits — after wave soldering and inspection, before packing — and define the upstream and downstream trigger signals that let it run unattended between stations.

The Vehicle: SC-900 Multi-Blade PCB V-Cut Separator

The SC-900 (also listed as the S-D900 Auto Moveable Cutting Separator) is an online, multi-blade, unidirectional V-cut separator from Southern Machinery's S-D depaneling family. Where the S-D3500S and S-D4500 routing separators mill complex contours, this machine is built for straight-line V-score separation at throughput.

• Classify the panel geometry → multi-blade single pass. Several round blades cut every score line at once, so whole-panel separation happens in one operation instead of a sequence of manual breaks.
• Size the cut rate → variable speed conveyor. A 300–500 mm/s adjustable motor lets you tune the pass to the upstream line rate instead of forcing the line to wait.
• Set the blade budget → SKD11 round blades. φ80 × φ35 × 3 mm imported high-speed steel SKD11 blades from Chuan Yi carry a published life of roughly 3 million cuts, which makes replacement cost predictable.
• Plan the line handshake → online trigger control. The conveyor accepts boards from the upstream station and passes separated PCBs downstream, with upper and lower trigger connections supporting unmanned operation between stations.

Specification note: board range, blade configuration, conveyor speed, air supply and voltage should be confirmed at quotation, because they depend on your panel design, weekly volume and regional power standard.

Specifications

| Parameter | Value |

| --- | --- |

| Dimensions (L × W × H) | 1850 × 900 × 1100 mm |

| Round blade size | φ80 × φ35 × 3 mm |

| Blade material | Imported high-speed steel SKD11 |

| Blade life | Approx. 3 million cuts |

| Board thickness | 0.5–3 mm (V-cut depth ≈ ⅓ of thickness) |

| Board width | 50–300 mm |

| Board length | 50 mm to unlimited |

| Board speed | 300–500 mm/s, adjustable |

| Working pressure | 0.5–0.8 MPa |

| Power | 200 W, 220V / 110V optional |

| Total weight | Approx. 160 kg |

The Loop: Re-Audit Separation Every Quarter

Panel designs and volumes shift as programmes ramp, and a separator specified for last year's board can quietly become the constraint on this year's. Build a loop: every quarter, repeat the Four-Point V-Cut Separation Audit, compare measured edge quality and cycle time against the baseline you recorded at commissioning, and review blade wear against actual cut counts. When a new panel family arrives, confirm the score-line residual and width window before volume builds, not after. The adjustable conveyor and multi-blade head give you margin to absorb that change — the loop is what stops separation from drifting back into a manual bottleneck.

Your Next Step

Send us your panel drawing, board thickness and target panels per shift. We will return a separation review showing where the SC-900 fits in your line, which blade and speed settings to specify, and what to confirm at quotation. Reach Jason at jasonwu@smthelp.com or on WhatsApp +86 13602562576.

FAQ

What board sizes does the SC-900 handle?

Board width 50–300 mm, thickness 0.5–3 mm, and length from 50 mm upward, with the V-cut depth set to roughly one third of board thickness.

Is the SC-900 only for LED strip panels?

LED strips and light bars are the headline application, but the machine is also specified for automatic cutting of PCBA boards after THT plug-in, and it supports X/Y two-way V-cut for power supply and general EMS panels.

Can it run inline with an existing SMT line?

Yes. It is an online separator whose conveyor accepts boards from the upstream station, with upper and lower trigger connections that support automatic, unmanned operation between stations.

How long do the blades last?

The SKD11 round blades from Chuan Yi carry a published life of approximately 3 million cuts; replacement cost and lead time should be confirmed at quotation against your weekly volume.

What utilities does it need?

0.5–0.8 MPa compressed air and 220V or 110V supply at 200 W, plus floor space for a 1850 × 900 × 1100 mm machine of roughly 160 kg.

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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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