{"id":1217,"date":"2026-08-18T08:21:47","date_gmt":"2026-08-18T08:21:47","guid":{"rendered":"https:\/\/ever-powers.com\/?p=1217"},"modified":"2026-08-18T08:27:14","modified_gmt":"2026-08-18T08:27:14","slug":"pet-blow-molding-machine-10000-bph-water-bottling-line","status":"publish","type":"post","link":"https:\/\/ever-powers.com\/ja\/application\/pet-blow-molding-machine-10000-bph-water-bottling-line\/","title":{"rendered":"How to Size a PET Blow Molding Machine for a 10,000 BPH Water Bottling Line"},"content":{"rendered":"

\"water<\/p>\n

A 10,000 BPH water bottling line is not a single machine decision \u2014 it is a systems engineering problem. The blow molding machine is one node in a production chain that includes high-pressure air supply, preform conditioning, chilled water, filling and capping, and conveyance. Specifying the blow molding machine in isolation from the other elements produces a line where one component limits all others. This guide works through each element from the BPH target backward, establishing the specification requirements that fall on the machine, the utilities, and the ancillary equipment.<\/p>\n

<\/p>\n

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Step 1 \u2014 Define the Net BPH Requirement Before Touching a Machine Catalogue<\/h2>\n<\/div>\n

A nameplate output of 10,000 BPH is a theoretical ceiling. The production line must sustain that output after accounting for OEE losses, startup scrap, and filling line synchronization. The blow molding machine must be specified at a higher gross BPH than the net target.<\/p>\n

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Reference calculation \u2014 500ml still water bottle, 16h\/day, 300 days\/year:<\/p>\n\n\n\n\n\n\n\n\n
\u30d1\u30e9\u30e1\u30fc\u30bf<\/td>\nValue<\/td>\nBasis<\/td>\n<\/tr>\n
Net BPH target<\/td>\n10,000 bph<\/td>\nCustomer requirement<\/td>\n<\/tr>\n
Target OEE<\/td>\n85%<\/td>\nIndustry benchmark for water bottling<\/td>\n<\/tr>\n
Steady-state scrap<\/td>\n0.8%<\/td>\nServo-drive machine, standard PET<\/td>\n<\/tr>\n
Required gross BPH<\/td>\n10,000 \u00f7 0.85 \u00d7 1.008 = 11,859 bph<\/strong><\/td>\nMinimum machine nameplate specification<\/td>\n<\/tr>\n
Recommended machine configuration<\/td>\nNext standard level: 12,000 bph<\/strong><\/td>\nRound up; never specify at the ceiling<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
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Machine configuration at 12,000 bph for 500ml water bottles:<\/strong> The HGA.JS-6C76 series delivers 9,200 bph at 6 cavities on 500ml bottles; reaching 12,000 bph requires either an 8-cavity configuration (JS-8C76 at ~12,000 bph) or two parallel 6-cavity lines. For a single-machine solution, confirm the target cavity count and container volume with the engineering team \u2014 the output ceiling varies with preform wall thickness and conditioning dwell time per specific bottle design.<\/p>\n<\/div>\n

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Step 2 \u2014 High-Pressure Air System: The Most Frequently Undersized Utility<\/h2>\n<\/div>\n

High-pressure blow air is consumed in direct proportion to bottle volume and output rate. For water and beverage bottles blown at 26\u201335 kg\/cm\u00b2 (the standard range for oriented PET), the volumetric air demand scales approximately linearly with BPH \u00d7 bottle volume. At 10,000 BPH of 500ml bottles, the blow air demand is substantial enough to require a dedicated high-pressure compressor installation \u2014 sharing with the facility’s general-purpose low-pressure air system is not viable.<\/p>\n\n\n\n\n\n\n\n\n
Bottle Format<\/th>\nOutput (bph)<\/th>\nBlow Pressure<\/th>\nAir Demand (ltr\/min)<\/th>\nCompressor Sizing<\/th>\n<\/tr>\n<\/thead>\n
330ml still water (6C)<\/td>\n7,200<\/td>\n26 kg\/cm\u00b2<\/td>\n~3,800<\/td>\n22 kW HP compressor<\/td>\n<\/tr>\n
500ml still water (8C)<\/td>\n9,600<\/td>\n30 kg\/cm\u00b2<\/td>\n~7,500<\/td>\n45 kW HP compressor<\/td>\n<\/tr>\n
1,500ml CSD bottle (4C)<\/td>\n3,200<\/td>\n35 kg\/cm\u00b2<\/td>\n~8,200<\/td>\n55 kW HP compressor<\/td>\n<\/tr>\n
5L water jug (2C)<\/td>\n1,600<\/td>\n35 kg\/cm\u00b2<\/td>\n~14,000<\/td>\n90 kW HP compressor (dedicated)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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Pipe sizing note:<\/strong> High-pressure air pipe internal diameter must support the peak flow demand without pressure drop exceeding 0.5 kg\/cm\u00b2 between compressor outlet and machine inlet. For a 7,500 ltr\/min demand at 30 kg\/cm\u00b2, the minimum pipe ID is 50mm for runs under 20m; 63mm for runs 20\u201350m. Undersized piping is the most common cause of apparent machine output shortfall on new water bottling line installations \u2014 the machine is running correctly but starved for air.<\/p>\n<\/div>\n

<\/p>\n

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Step 3 \u2014 Chilled Water System: Flow Rate and Temperature Requirements by Model<\/h2>\n<\/div>\n

Chilled water controls mold temperature during the blow-and-hold phase. For water and beverage bottle production, the mold surface temperature target is 8\u201312\u00b0C \u2014 achieved with a chilled water supply at 6\u201310\u00b0C inlet. Insufficient chilling produces containers that eject before the PET has reached dimensional stability, which shows as base deformation and body ovality in the filled product.<\/p>\n\n\n\n\n\n\n\n\n\n
Model<\/th>\nCavities<\/th>\nMax Output (bph)<\/th>\nCooling Water (ltr\/min)<\/th>\nChiller Sizing (kW)<\/th>\n<\/tr>\n<\/thead>\n
JS-2C366<\/td>\n2<\/td>\n1,600<\/td>\n60<\/td>\n8\u201312 kW<\/td>\n<\/tr>\n
JS-4C76<\/td>\n4<\/td>\n4,800<\/td>\n40<\/td>\n10\u201315 kW<\/td>\n<\/tr>\n
JS-6C76<\/td>\n6<\/td>\n9,200<\/td>\n60<\/td>\n15\u201322 kW<\/td>\n<\/tr>\n
JS-6C114<\/td>\n6<\/td>\n5,400<\/td>\n60<\/td>\n15\u201322 kW<\/td>\n<\/tr>\n
JS-8C76<\/td>\n8<\/td>\n12,000+<\/td>\n80<\/td>\n22\u201330 kW<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/p>\n

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Step 4 \u2014 Filling Line Synchronization: Matching Blow Output to Filler Speed<\/h2>\n<\/div>\n

A blow molding machine and a rotary filler operate at different output rhythms. The blow machine produces bottles in discrete cycles; the filler runs continuously. Between them, an air conveyor and accumulation table act as a buffer \u2014 but the buffer has a finite capacity. If the blow machine output exceeds the filler speed by more than the buffer can absorb during a transient stoppage, bottles back up, the blow machine jam-stops, and the entire line loses efficiency.<\/p>\n\n\n\n\n\n\n\n\n
Synchronization Parameter<\/th>\nRecommended Setting<\/th>\nConsequence if Ignored<\/th>\n<\/tr>\n<\/thead>\n
Blow machine vs filler speed ratio<\/td>\nBlow machine nameplate output should be 105\u2013110% of filler rated speed \u2014 slight surplus, not deficit<\/td>\nDeficit: filler starves \u2192 fill head idle time \u2192 OEE loss of 3\u20138%<\/td>\n<\/tr>\n
Air conveyor buffer capacity<\/td>\nMinimum 60 seconds of blow machine output at full speed (e.g. at 10,000 bph = 167 bottles\/60s buffer minimum)<\/td>\nInsufficient buffer: any 30-second filler stoppage triggers blow machine jam-stop<\/td>\n<\/tr>\n
Blow machine speed control interface<\/td>\nHGA\/JS series machines support external BPH setpoint via PLC digital input \u2014 filler PLC can modulate blow speed in response to accumulation table level<\/td>\nManual speed matching: operator reaction time introduces \u00b15\u201310% output variance<\/td>\n<\/tr>\n
Container neck orientation at filler infeed<\/td>\nAir conveyor guide rail height adjusted to match container neck diameter; star wheel timing matched to blow cycle output rhythm<\/td>\nGuide rail mismatch: container tipping in air conveyor \u2192 jam events \u2192 2\u20134% OEE reduction<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/p>\n

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Step 5 \u2014 Single Machine vs Parallel Line: The Redundancy Decision<\/h2>\n<\/div>\n

A single high-output machine at 10,000 BPH and two parallel machines each running 5,000 BPH produce the same theoretical output. They do not produce the same operational risk profile.<\/p>\n\n\n\n\n\n\n\n\n\n
Factor<\/th>\nSingle 10,000 BPH Machine<\/th>\nTwo \u00d7 5,000 BPH Machines<\/th>\n<\/tr>\n<\/thead>\n
Capital cost<\/td>\nLower (one machine frame)<\/td>\n~40% higher (two machines)<\/td>\n<\/tr>\n
Failure impact<\/td>\n100% output loss<\/td>\n50% output retained<\/td>\n<\/tr>\n
Mold changeover impact<\/td>\nFull line stop during changeover (90\u2013150 min)<\/td>\nStagger changeovers: one machine changes while other runs at 5,000 bph<\/td>\n<\/tr>\n
Floor space<\/td>\n~50% less floor area<\/td>\nLarger footprint + dual utility runs<\/td>\n<\/tr>\n
Recommended for<\/td>\nSingle SKU, high-volume, low-changeover lines with strong planned maintenance program<\/td>\nMulti-SKU lines or operations where supply continuity is contractually critical<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n

\"Ever<\/p>\n

\n

\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<\/div>\n
\n\u25b6 \u00a0Can a single JS-series machine realistically sustain 10,000 BPH on a 500ml water bottle over a 16-hour shift?<\/summary>\n
At 10,000 BPH nameplate output, a JS-8C76 configuration is required for 500ml bottles. Sustaining this over a 16-hour shift depends on preform supply consistency, chilled water temperature stability, and high-pressure air pressure maintenance. The servo drive system eliminates clamping drift over the shift, which is the primary cause of output decline on hydraulic-drive high-output machines after hour 6\u20138 of running. With properly sized utilities (80 ltr\/min cooling water at 6\u201310\u00b0C inlet; high-pressure air at 30 kg\/cm\u00b2 with \u22640.3 kg\/cm\u00b2 line pressure drop), a shift-average of 9,200\u20139,600 BPH is achievable against a 10,000 nameplate \u2014 consistent with an 85% OEE after accounting for minor stoppages and startup losses.<\/div>\n<\/details>\n
\n\u25b6 \u00a0What is the preform supply rate required to feed a 10,000 BPH blow molding machine?<\/summary>\n
At 10,000 BPH, the preform hopper and sorting system must deliver 10,000 preforms per hour \u2014 approximately 167 preforms per minute \u2014 without jams or orientation errors. Standard preform handling systems for water bottling lines use a centrifugal or elevator-type bulk feeder with a capacity of 12,000\u201315,000 preforms\/hour to maintain a 20\u201330% buffer above the blow machine demand. The sorting and feeding system is specified separately from the machine; confirm compatibility of the preform neck finish dimensions and body geometry with the feeding system manufacturer before installation. For ISBM one-step machines (where the preform is injected in-machine), this preform supply chain does not apply \u2014 the machine produces its own preforms.<\/div>\n<\/details>\n
\n\u25b6 \u00a0How does cavity count affect bottle weight consistency on a water bottling line?<\/summary>\n
On a servo-drive machine, inter-cavity weight variation is held to \u00b10.2\u20130.4g per bottle. For a 9g, 500ml water bottle (standard lightweight design), this represents \u00b12.2\u20134.4% weight variation \u2014 within acceptable limits for quality-specification water bottle production. On hydraulic-drive machines, inter-cavity variation over a full shift can reach \u00b10.8\u20131.2g (\u00b19\u201313% for a 9g bottle), which causes visible performance differences in drop testing between light and heavy cavities. For water bottling operations running to light-weight specifications (bottle weight below 9g for 500ml), servo-drive clamping is not a preference but a requirement for maintaining consistent drop-test pass rates across all cavities.<\/div>\n<\/details>\n
\n\u25b6 \u00a0What is the typical electrical supply requirement for a 10,000 BPH water bottle line?<\/summary>\n
The blow molding machine itself (JS-8C76 configuration) draws approximately 38\u201350 kW at steady-state production. The high-pressure compressor adds 45\u201355 kW. The chiller adds 22\u201330 kW. Total electrical demand for the blow molding station alone (excluding filler, capper, labeller, and conveyance) is approximately 105\u2013135 kW. Plan for a dedicated 160 kVA transformer for the blow molding station on a 10,000 BPH line \u2014 sharing with general facility power introduces voltage sag risk during compressor starts that can disrupt the machine’s PLC and servo drive systems.<\/div>\n<\/details>\n

<\/p>\n

\n

Planning a high-output water bottling line?<\/p>\n

Share your target BPH, bottle volume, shift schedule, and existing utility capacity \u2014 receive a complete machine + utilities specification package from the Ever-Power engineering team.<\/p>\n

View PET Blow Molding Machine Specifications \u2192<\/a><\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

A 10,000 BPH water bottling line is not a single machine decision \u2014 it is a systems engineering problem. The blow molding machine is one node in a production chain that includes high-pressure air supply, preform conditioning, chilled water, filling and capping, and conveyance. Specifying the blow molding machine in isolation from the other elements produces a line where one component limits all others. This guide works through each element from the BPH target backward, establishing the specification requirements that fall on the machine, the utilities, and the ancillary equipment. Step 1 \u2014 Define the Net BPH Requirement Before Touching a Machine Catalogue A nameplate output of 10,000 BPH is […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[43],"tags":[64,65,63],"class_list":["post-1217","post","type-post","status-publish","format-standard","hentry","category-isbm-machine-blog","tag-10000-bph-bottling-line","tag-pet-bottle-production-capacity","tag-water-bottle-blow-molding-machine"],"_links":{"self":[{"href":"https:\/\/ever-powers.com\/ja\/wp-json\/wp\/v2\/posts\/1217","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ever-powers.com\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ever-powers.com\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ever-powers.com\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ever-powers.com\/ja\/wp-json\/wp\/v2\/comments?post=1217"}],"version-history":[{"count":3,"href":"https:\/\/ever-powers.com\/ja\/wp-json\/wp\/v2\/posts\/1217\/revisions"}],"predecessor-version":[{"id":1220,"href":"https:\/\/ever-powers.com\/ja\/wp-json\/wp\/v2\/posts\/1217\/revisions\/1220"}],"wp:attachment":[{"href":"https:\/\/ever-powers.com\/ja\/wp-json\/wp\/v2\/media?parent=1217"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ever-powers.com\/ja\/wp-json\/wp\/v2\/categories?post=1217"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ever-powers.com\/ja\/wp-json\/wp\/v2\/tags?post=1217"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}