S-1200SV LED Lamp SMT Line Layout by Southern Machinery

The S-1200SV is a six-station, 11.2 m SMT line for LED lamp PCBs: semi-auto screen printer, buffer conveyor, pick-and-place machine, buffer conveyor, reflow oven, and worktable. According to the source datasheet, its pick-and-place machine handles boards up to 1,200 mm long, covering LED strips up to 4 ft in a single pass. This guide explains how to judge whether the layout fits your LED lamp production.

Why does a long LED board disrupt a standard SMT line?

Most line planning starts with the machines. LED lamp manufacturers should start with the board. A 4 ft strip is not a standard PCB, so every station must be able to carry it without a transfer problem. Conveyor width, print area, and placement envelope must match.

Buyers often get stuck here without saying so. A quote may list each machine correctly, but no one checks the entire line against the longest board. The result is a line that places components well and then jams between stations.

What is the S-1200SV line made of?

The source lists the line as Semi-Auto Screen Printer → Buffer Conveyor → Pick and Place → Buffer Conveyor → Reflow Oven → Worktable. The station lengths are 1.2 m, 1.5 m, 2.0 m, 1.5 m, 3 m, and 2 m, for a total line length of 11.2 m.

| Station | Model in source | Length in layout |

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

| Semi-auto screen printer | SP-1200 | 1200 mm |

| Buffer conveyor | S-350E (2 units) | 1500 mm each |

| Pick and place | S-1200-SV | 2000 mm |

| Lead-free reflow oven | S-6600 | 3000 mm |

| Worktable | Not specified in source — contact Southern Machinery to confirm | 2000 mm |

How can you check a long-board LED line in five steps?

1. Determine the longest board. Record the length, width, and thickness of your longest LED PCB.
2. Check each station against it. Compare the board with each datasheet limit below.
3. Check the transfers. Confirm SMEMA signaling and conveyor height between stations.
4. Check the thermal side. Compare board length with the reflow zone length and your solder profile.
5. Check the floor space. Confirm that the 11.2 m line plus operator access fits your hall.

Which datasheet limits matter for the board?

Printing: SP-1200

According to the source: PCB size 350 x 1200 mm, printing area 320 x 1270 mm, frame size 370 x 1320 mm, PCB thickness 0.2–2.0 mm. Printing accuracy is ±0.05 mm, and repeat accuracy is ±0.02 mm. The table has a groove and locating pin and is suitable for single- and double-sided boards.

Placement: S-1200-SV

The source lists eight pick-up heads, each with a vision alignment camera, and placement accuracy of ±0.05 mm (the parameter list also shows 0.1 mm accuracy and 0.02 mm movement accuracy). Speed is up to 50,000 CPH, quoted as 0.1 s/chip. Components range from 0603 to 7474, including irregularly shaped LEDs. Maximum PCB size is 1200 mm long and 325 mm wide.

Transport: S-350E buffer conveyors

Rail length 1500 mm, width range 20–400 mm, speed 0–2 m/min, height 900±20 mm, SMEMA signal plug, anti-static belt. Direction is L→R or R→L.

Soldering: S-6600 lead-free reflow

Six top and six bottom heating zones, 2300 mm heating zone length, one cooling zone, Siemens PLC as standard, 3-phase 380 V. Dimensions: 3600 x 720 x 1250 mm.

What does this mean for cost and yield?

The source gives no price, output guarantee, or yield figure, so treat the formula below as a worked example only. It depends on configuration and is subject to final technical confirmation.

Annual value = (boards per day x working days x rework cost avoided per board) - added line cost

Example only: if your own audit shows five fewer reworked boards per day, 250 working days, and a rework cost that you measure yourself, plug those numbers in. Do not treat any figure here as a promise.

How does it fit into a wider PCB assembly line?

The S-1200SV is a compact LED route. If you later add THT work, see THT machines, wave soldering and board handling systems. For inspection, see 3D SPI and AOI. Southern Machinery, founded in 2011 in Shenzhen, serves more than 237 global customers with SMT and THT assembly automation, spare parts support, and training.

FAQ

What is the S-1200SV line used for?

LED lamp PCB assembly, including strips up to 4 ft in one pass according to the source.

What is the total line length?

11.2 m across six stations.

Does the line use a semi-auto printer?

Yes, the SP-1200 semi-auto screen printer.

Is SMEMA supported?

The S-350E conveyor has a SMEMA signal plug, and the placement machine has a SMEMA-compatible inline conveyor.

What is the price or delivery time?

Not specified in the source — contact Southern Machinery to confirm.

What should you read next?

Next in this series: how to size a reflow profile for long LED boards. In the meantime, send us your longest board drawing, and we will review it against this layout. Request a quote or contact us.