{"id":4154,"date":"2026-05-05T06:33:55","date_gmt":"2026-05-05T06:33:55","guid":{"rendered":"https:\/\/ygpack.com\/?p=4154"},"modified":"2026-06-17T03:09:30","modified_gmt":"2026-06-17T03:09:30","slug":"q9-what-causes-poor-vacuum-performance-is-it-the-machine-or-thebag","status":"publish","type":"post","link":"https:\/\/ygpack.com\/en_au\/q9-what-causes-poor-vacuum-performance-is-it-the-machine-or-thebag\/","title":{"rendered":"What Causes Poor Vacuum Performance \u2014 Is It the Machine or theBag?"},"content":{"rendered":"
\"\"<\/figure>\n\n\n\n

Troubleshooting weak vacuum is a systematic process. Here is how to accurately diagnose the root cause before calling for
service or replacing equipment:
Diagnostic Decision Tree:
Step 1 \u2014 Run a blank cycle (no bag, lid closed).
Gauge reaches \u2265 -90 kPa \u2192 pump and chamber are fine \u2192 go to Step 2
Gauge stops below -70 kPa \u2192 machine-side issue \u2192 go to Step 3
Step 2 \u2014 Run with a new, undamaged bag from a known-good batch.
Vacuum holds \u2192 original bag was defective (micro-puncture, wrong material, poor barrier)
Vacuum still poor \u2192 check bag placement and sealing bar alignment
Step 3 \u2014 Machine-side diagnosis\uff1a<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

The #1 Overlooked Cause: Pump oil. Rotary vane vacuum pumps require oil changes every 500\u2013800 operating hours
(approximately every 3 months in single-shift production). Old, contaminated oil dramatically reduces ultimate vacuum and
accelerates wear. This is the most common cause of gradual performance degradation that operators mistake for “the machine
getting old.”
YGPACK Service Advantage: Every YGPACK machine ships with a first-fill pump oil kit and a maintenance log card. Our
technical support team provides remote diagnostic assistance \u2014 including guided gauge testing \u2014 before any service ticket is
escalated.<\/p>","protected":false},"excerpt":{"rendered":"

Troubleshooting weak vacuum is a systematic process. Here is how to accurately diagnose the root cause before calling forservice or<\/p>","protected":false},"author":1,"featured_media":4155,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-4154","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-faq"],"_links":{"self":[{"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/posts\/4154","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/comments?post=4154"}],"version-history":[{"count":2,"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/posts\/4154\/revisions"}],"predecessor-version":[{"id":4384,"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/posts\/4154\/revisions\/4384"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/media\/4155"}],"wp:attachment":[{"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/media?parent=4154"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/categories?post=4154"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ygpack.com\/en_au\/wp-json\/wp\/v2\/tags?post=4154"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}