{"id":170,"date":"2026-09-17T01:46:38","date_gmt":"2026-09-17T01:46:38","guid":{"rendered":"https:\/\/largesprocket.top\/product\/80-stainless-steel-sprocket-engineered-for-annual-shutdown-intervals\/"},"modified":"2026-09-17T05:36:11","modified_gmt":"2026-09-17T05:36:11","slug":"80-stainless-steel-sprocket-engineered-for-annual-shutdown-intervals","status":"publish","type":"product","link":"https:\/\/largesprocket.top\/tr\/urun\/80-stainless-steel-sprocket-engineered-for-annual-shutdown-intervals\/","title":{"rendered":"#80 Paslanmaz \u00c7elik Di\u015fli \u00c7ark | Y\u0131ll\u0131k Bak\u0131m ve Onar\u0131m Aral\u0131\u011f\u0131 \u0130\u00e7in Tasarlanm\u0131\u015ft\u0131r"},"content":{"rendered":"
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Hangzhou Ever-Power Di\u015fli \u00c7ark \u015eirketi<\/p>\n

A paper mill\u2019s bleach plant runs on an annual shutdown cycle. Every component in the chlorine-dioxide and hypochlorite environment must last 12 months between planned stops \u2014 or force an unplanned intervention that shuts down the whole pulp line.<\/p>\n<\/div>\n

The Annual Shutdown Interval: What It Demands from a Drive Component<\/h2>\n

Large continuous-process plants \u2014 paper mills, chemical manufacturers, fertiliser facilities \u2014 operate on annual or biannual planned shutdown (turnaround) schedules. Every day of unplanned downtime between scheduled turnarounds is a production loss that has no recovery path in the annual plan. The maintenance engineering team\u2019s job, in the interval between turnarounds, is zero unplanned stops. This means specifying drive components whose realistic service life exceeds the turnaround interval, not just meets it on paper. A carbon steel #80 sprocket in the bleach plant of a paper mill \u2014 exposed to chlorine dioxide (ClO\u2082) or hypochlorite (NaOCl) solution mist at elevated temperatures \u2014 will not last 12 months. In most cases it corrodes to the point of compromised function within 90 days. The Ever-Power #80 Paslanmaz \u00c7elik Di\u015fli<\/strong> in 316 SS is the correct specification for this interval: its passive oxide layer regenerates after each chemical exposure, its chloride resistance prevents the pitting that afflicts 304 SS in bleach-plant atmospheres, and its machining precision ensures that after 12 months of operation in a corrosive atmosphere, the tooth profile is still within the ANSI replacement limit \u2014 because the only failure mechanism that has been active is mechanical wear, not corrosion.<\/p>\n

\"#80<\/p>\n

Turnaround Planning: What the Maintenance Team Needs at Year-End Inspection<\/h2>\n

During an annual turnaround, the drive inspection checklist for a bleach-plant conveyor includes tooth profile wear, bore fit condition, hub integrity, and pitch circle accuracy \u2014 all measured against the as-new dimensional record. The maintenance decision \u2014 replace or continue service \u2014 requires that the as-new data exists to compare against. Our standard documentation package, which includes the CMM dimensional record for pitch diameter, bore, and tooth form, provides exactly this baseline. At turnaround time, your metrology team re-measures against our CMM record and the decision is objective, not a judgement call. Sprockets<\/a> that are within tolerance go back in. Those at or approaching the replacement limit are replaced with the next pre-ordered set.<\/p>\n

Teknik \u00d6zellikler<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
Parametre<\/th>\nDe\u011fer<\/th>\n<\/tr>\n<\/thead>\n
Zincir No.<\/td>\nANSI 80<\/td>\n<\/tr>\n
Saha<\/td>\n25,4 mm (1\u2033)<\/td>\n<\/tr>\n
Recommended Grade<\/td>\n316 SS (bleach plant, ClO\u2082, NaOCl environments)<\/td>\n<\/tr>\n
Di\u015f Aral\u0131\u011f\u0131<\/td>\n8T \u2013 60T (daha b\u00fcy\u00fck kapasiteler talep \u00fczerine temin edilebilir)<\/td>\n<\/tr>\n
At\u0131\u015f Do\u011frulu\u011fu<\/td>\n\u00b10.025 mm tooth-to-tooth, class A<\/td>\n<\/tr>\n
Dok\u00fcmantasyon<\/td>\nMTR + CMM dimensional report, standard<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Chemical Resistance in Bleach Plant Atmospheres<\/h2>\n

The bleach plant is the most aggressive chemical environment in a paper mill. Chlorine dioxide (ClO\u2082) used in elemental chlorine-free (ECF) bleaching is a powerful oxidising agent at elevated temperatures; sodium hypochlorite (NaOCl) in the chlorine stage provides additional chloride exposure; and the peroxide (H\u2082O\u2082) stage in ECF\/TCF sequences adds an oxidising\/bleaching chemistry layer. 316 SS resists all of these reliably at the concentrations and temperatures used in standard bleach-plant operation. The key is that passivation treatment is applied before installation \u2014 citric acid passivation removes any free-iron from machining tooling and maximises the oxide layer before the sprocket is exposed to the chemical environment. We include passivation at no additional charge for all chemical plant and bleach plant orders.<\/p>\n

\"Ever-Power<\/p>\n

Drive System Components for Chemical Plant Environments<\/h2>\n

Build a complete turnaround-interval chemical plant drive from one supplier with consistent grade documentation throughout. Our large stainless steel sprocket<\/a> systems include:<\/p>\n