S-SPW01 Solder Paste Warmer: FIFO Paste Thawing for Reliable SMT Printing
Automate FIFO solder paste thawing before stencil printing with the S-SPW01: four 500 g tanks, per-tank LED timers, automatic pop-up on power failure, and alarms. Built for EMS SMT lines.
Sep 9, 2026 · Updated Sep 9, 2026 · Southern Machinery
S-SPW01 Solder Paste Warmer: FIFO Paste Thawing for Reliable SMT Printing
Solder paste that thaws unevenly after cold storage can cause bridging, solder balling, and unstable deposits during printing. Southern Machinery's S-SPW01 automates the thawing process with per-tank timers and FIFO logic.
What is this machine used for?
- FIFO rotation — Paste jars A, B, C, and D warm in sequence; later jars cannot be removed until the earlier one is taken.
- Per-tank LED timers — Each slot has its own warm-up time; the jar sinks when set and releases when done.
- Safety — Jars pop up automatically on power failure; an alarm sounds when time is up; emergency stop included.
Verified specifications
| Item | Specification |
| --- | --- |
| Model | S-SPW01 |
| Capacity | 500 g × 4 units (customizable) |
| Power supply | 1P 220V or 110V, 50/60 Hz |
| Control | LED timer per tank, FIFO logic, alarm; auto-popup on power failure |
| Dimensions | L500 × W300 × H230 mm |
| Weight | approx. 15 kg |
Specifications from the product page; confirm at quotation.
How it fits into a complete PCB assembly line
Paste management sits at the front of the SMT process:
- Paste is stored refrigerated to preserve flux.
- The S-SPW01 thaws the day's jars using FIFO timers.
- The stencil printer applies paste; SPI verifies quality.
- Consistent paste state reduces bridging and rework at reflow and AOI.
The compact bench-top warmer sits beside the printer or in the paste-prep area without taking up line space.
ROI perspective
Paste-related defects surface as rework or scrap downstream, where they cost more than at the source. FIFO rotation and timed thawing remove operator-dependent handling — meaning fewer SPI/AOI failures and no wasted paste. ROI modeling is available case by case.
About Southern Machinery — your SMT/THT line partner
Founded in 2011 in Shenzhen, China, Southern Machinery serves 237+ global customers with cost-effective SMT/THT automation: auto insertion, wave soldering, board handling, cleaning, inspection, spare parts, training, and global support.
FAQ
Q: What does it do?
A: It thaws and warms solder paste jars with per-tank timers and FIFO logic before stencil printing.
Q: How many jars at once?
A: Four 500 g units; more tanks are available as a customization.
Q: How does FIFO work?
A: Jars warm in sequence (A, B, C, D); a later jar cannot be removed until the earlier one is taken.
Q: What happens on power failure?
A: Jars pop up automatically, so paste is never left warming unnoticed.
Q: Is this a mixer?
A: No — it warms paste. Southern Machinery also offers the S-SPM01 mixer for homogenizing.
Next steps
Contact Jason Wu: jasonwu@smthelp.com | WhatsApp: +86 13602562576
Product page: https://www.smthelp.com/s-spw01-solder-paste-warmer-for-smart-ems-factory.html
Catalog: https://file.autoinsertion.com | Images: https://ph.smthelp.com
Published by Southern Machinery — SMT/THT PCB assembly automation. Established 2011 in Shenzhen, serving 237+ global EMS, ODM, automotive, and medical manufacturers.
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