After OCA glue
lamination, bubble removal is where screen refurbishment jobs either succeed or
get sent back. Trapped air pockets between the LCD and cover glass ruin an
otherwise clean lamination — and without a proper defoaming machine, you're
stuck waiting hours under pressure plates that don't guarantee results. The
SUNSHINE S-978C Mini Defoaming Machine eliminates that problem directly. You
place the freshly laminated screen inside, set your time and temperature on the
visual control panel, press one button, and let the machine do the work.
The S-978C targets
repair shops handling curved screen and flat screen refurbishment jobs on
devices up to 7 inches. That covers the full range of commonly refurbished
models — Samsung Galaxy curved displays, iPhone flat glass assemblies, and
mid-range Android panels from Qualcomm and MediaTek-based handsets. The
built-in screen tray holds the panel securely during the defoaming cycle,
keeping it positioned correctly while pressure builds inside the chamber.
The lock-type door
design is a key engineering difference you notice immediately on your first
use. It closes with a safety limit mechanism that distributes force evenly
across the seal — no uneven pressure on one side, no leakage risk. Once locked,
the chamber inflates in 2 seconds. When the cycle completes, exhaust clears in
the same 2 seconds. That rapid inflate-and-exhaust cycle is what makes the
S-978C fast enough for high-volume repair days — you're not waiting on chamber
pressure to bleed out slowly between jobs.
Temperature control on
the S-978C uses a visual panel rather than a simple analog dial. You set the
exact temperature your OCA adhesive requires, and the machine maintains it
consistently through the defoaming cycle. This matters because OCA glue responds
differently at different temperatures — too low and bubbles don't release
properly, too high and you risk adhesive flow damage on thinner display
assemblies. Precise temperature setting eliminates that guesswork entirely.
The S-978C requires an
external air compressor for operation. Pakistani repair shops that already run
a compressor for screen separator machines or pneumatic pry tools connect
directly without additional equipment investment. If your workshop doesn't have
one, it's the only add-on purchase needed before this machine goes live on your
bench.
No preheat time means
you start your first defoaming cycle immediately after powering on — no
standing idle waiting for the chamber to reach temperature. Real-time pressure
data appears on the display throughout each cycle, so you monitor exactly
what's happening inside the chamber at every moment. If pressure behaves
unexpectedly, you see it instantly.
Display problem cases
involving OCA lamination — particularly on Samsung curved screens where bubble
removal is notoriously difficult without proper pressure equipment — become
repeatable, consistent jobs with the S-978C in your workflow. Shops that previously
avoided screen refurbishment because of inconsistent bubble removal results now
run those jobs profitably. The compact footprint means the S-978C fits on your
existing repair bench without displacing your PCB holders, microscope, or
soldering station space.
Package contents
include the host unit, screen tray, air pipe, power cord, manual in English and
Chinese, and a certificate. Everything you need to start defoaming is in the
box — connect your compressor, set temperature and time, and your first cycle
runs immediately.