{"id":444,"date":"2026-04-20T05:50:58","date_gmt":"2026-04-20T05:50:58","guid":{"rendered":"https:\/\/isbm-blow-molding.com\/?post_type=product&p=444"},"modified":"2026-04-20T05:50:58","modified_gmt":"2026-04-20T05:50:58","slug":"ep-bpet-94v3-3-station-injection-stretch-blow-moulding-machine","status":"publish","type":"product","link":"https:\/\/isbm-blow-molding.com\/hi\/product\/ep-bpet-94v3-3-station-injection-stretch-blow-moulding-machine\/","title":{"rendered":"EP-BPET-94V3 3-Station Injection Stretch Blow Moulding Machine"},"content":{"rendered":"
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<\/p>\n

Product Overview<\/h2>\n

The EP-BPET-94V3 3-station injection stretch blow moulding machine<\/strong> sits in an unusual corner of the ISBM market: heavy-duty clamping combined with short-cycle rotary design. On paper it looks like a compromise \u2014 a 3-station platform without the dedicated conditioning position that 4-station machines use for fine thermal control. In practice, for the bulk of Korean beverage, household chemical, and edible oil production, that conditioning station is not needed because the bottles are standard round geometries where residual preform heat from injection is already tuned for the subsequent blow phase. Stripping out the conditioning station saves one full index rotation per cycle, which translates to 15 to 20 percent shorter cycle times and correspondingly higher hourly output.<\/p>\n

What makes the \u092c\u0940\u092a\u0940\u0908\u091f\u0940-94\u0935\u09403<\/strong> especially interesting in the Korean market is its 785 KN injection clamping force. This is the highest clamping rating in any 3-station class from any supplier we are aware of \u2014 roughly 15 percent above our own 4-station BPET-125V4, and well above any Japanese or European 3-station machine in the comparable tonnage range. The immediate practical benefit is that the machine holds 8-cavity high-output tooling without flashing, and it tolerates higher-IV PET grades without requiring extended injection pressure ramp profiles. Factories running mid-volume 500 ml to 1 L beverage bottles are the typical buyers, and the hourly throughput advantage against a conventional 4-station machine usually pays back the slightly higher machine cost within the first production year.<\/p>\n

\"\u0907\u0902\u091c\u0947\u0915\u094d\u0936\u0928<\/p>\n

Material flexibility matches the 4-station BPET-125V4 almost exactly. The 60 mm plasticizing screw with 24:1 L\/D ratio and 12.5 KW barrel heating handles PET and PETG as standard, along with PC, PCTG, PP, Tritan, SAN, PS, and PMMA when the application calls for it. The one caveat on 3-station architecture is that complex oval or asymmetric bottle geometries \u2014 where preferential preform heating is needed to prevent thin corners \u2014 are better served by a 4-station platform. For the 90 percent of real-world bottles that are round or near-round, the 3 station ISBM machine<\/strong> approach delivers better economics. Korean beverage bottlers in Daegu, Busan, and Ulsan have already moved production from older 2-step lines onto the BPET-94V3 over the past two years, consistently reporting 30 to 40 percent energy reduction and 18 to 22 percent cycle time improvement.<\/p>\n

Ever-Power ships the BPET-94V3 with platen layouts that accept standard Japanese 3-station ISBM tooling, which matters because operators upgrading from an aging Nissei or similar machine can frequently drop their existing moulds directly onto the new chassis. For greenfield orders, our in-house tool shop builds matched 1-to-8 cavity tooling with typical lead times of 40 to 55 working days. The 4800 \u00d7 2050 \u00d7 3000 mm footprint is 20 cm shorter than the 4-station BPET-125V4 even though the two machines share the same 11.6-ton chassis mass and nearly identical auxiliary requirements. For plants where floor space constraint is tight, those 20 centimeters actually matter.<\/p>\n

<\/p>\n

Technical Specifications & Cavity Matrix<\/h2>\n

Every parameter listed below is verified against our production test-run data on installed BPET-94V3 units. Before finalizing a quotation, our engineering team reviews the screw-size choice, cavity count target, and preform weight against your specific resin grade and annual volume plan. The cavity matrix further down represents practical maximum bottle envelopes at each cavity count.<\/p>\n

Machine Technical Parameters<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u092a\u0948\u0930\u093e\u092e\u0940\u091f\u0930<\/th>\nUnit<\/th>\nValue (EP-BPET-94V3)<\/th>\n<\/tr>\n<\/thead>\n
\u092e\u0936\u0940\u0928 \u0932\u0947\u0906\u0909\u091f<\/td>\n\u2014<\/td>\n3-station rotary (Injection \u2192 Stretch Blow \u2192 Take-out)<\/td>\n<\/tr>\n
\u092a\u0947\u0902\u091a \u0915\u093e \u0935\u094d\u092f\u093e\u0938<\/td>\nmm<\/td>\n60<\/td>\n<\/tr>\n
Screw L\/D Ratio<\/td>\n\u2014<\/td>\n24 : 1<\/td>\n<\/tr>\n
Theoretical Injection Volume<\/td>\ncm\u00b3<\/td>\n480<\/td>\n<\/tr>\n
\u0907\u0902\u091c\u0947\u0915\u094d\u0936\u0928 \u0915\u094d\u0932\u0948\u092e\u094d\u092a\u093f\u0902\u0917 \u092c\u0932<\/td>\nKN<\/td>\n785 (highest in 3-station class)<\/td>\n<\/tr>\n
Blow Clamping Force (single side)<\/td>\nKN<\/td>\n298<\/td>\n<\/tr>\n
Chilled Water Flow<\/td>\nL\/min<\/td>\n80<\/td>\n<\/tr>\n
Cooling Tower Water Flow<\/td>\nL\/min<\/td>\n200<\/td>\n<\/tr>\n
Main Driving Power (rated)<\/td>\nKW<\/td>\n65 (380 V)<\/td>\n<\/tr>\n
Barrel Heater Power (rated)<\/td>\nKW<\/td>\n12.5 (220 V)<\/td>\n<\/tr>\n
Hydraulic Oil Tank Capacity<\/td>\n\u090f\u0932<\/td>\n620<\/td>\n<\/tr>\n
Max Blow Air Pressure<\/td>\nMPa<\/td>\n3.5<\/td>\n<\/tr>\n
Machine Running Air Pressure<\/td>\nMPa<\/td>\n1.0<\/td>\n<\/tr>\n
Dimensions (L \u00d7 W \u00d7 H)<\/td>\nmm<\/td>\n4800 \u00d7 2050 \u00d7 3000<\/td>\n<\/tr>\n
\u092e\u0936\u0940\u0928 \u0935\u091c\u0928<\/td>\nT<\/td>\n11.6<\/td>\n<\/tr>\n
Compatible Materials<\/td>\n\u2014<\/td>\nPET, PETG, PETE, PC, PCTG, PP, Tritan, SAN, PS, PMMA<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Cavity Configuration & Bottle Capacity (1 \u2013 8 Cavities)<\/h3>\n

One machine covers the full span from 4.5 L bulk water jugs down to 200 ml retail bottles. The matrix below is based on actual production tooling we have built over the past three years for Korean and East Asian customers.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n
Cavities<\/th>\nMax Neck \u00d8 (mm)<\/th>\nMax Body \u00d8 (mm)<\/th>\nMax Height (mm)<\/th>\nMax Volume (ml)<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n110<\/td>\n149<\/td>\n300<\/td>\n4500<\/td>\n<\/tr>\n
2<\/td>\n109<\/td>\n130<\/td>\n300<\/td>\n2500<\/td>\n<\/tr>\n
3<\/td>\n89<\/td>\n130<\/td>\n300<\/td>\n2500<\/td>\n<\/tr>\n
4<\/td>\n70<\/td>\n100<\/td>\n300<\/td>\n1500<\/td>\n<\/tr>\n
5<\/td>\n42<\/td>\n80<\/td>\n250<\/td>\n800<\/td>\n<\/tr>\n
6<\/td>\n34<\/td>\n66<\/td>\n250<\/td>\n500<\/td>\n<\/tr>\n
7<\/td>\n30<\/td>\n54<\/td>\n200<\/td>\n300<\/td>\n<\/tr>\n
8<\/td>\n24<\/td>\n48<\/td>\n200<\/td>\n200<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

3-Station vs 4-Station \u2014 Which Architecture Fits Your Production?<\/h2>\n

The choice between a 3-station and 4-station ISBM platform is one of the most consequential decisions in ISBM equipment selection, and it is not well understood outside of experienced process engineers. The short answer: 3-station machines win on throughput and energy, 4-station machines win on bottle-shape flexibility. Below is a breakdown of when each architecture makes sense in practice.<\/p>\n

Where the 3-Station BPET-94V3 Wins<\/h3>\n

Standard round bottles \u2014 water bottles, juice bottles, household chemical containers, edible oil bottles, sports drink bottles \u2014 do not need preferential preform heating. The preform comes off the injection core at a wall-temperature profile already suitable for stretching, provided the injection cycle is tuned correctly. Skipping the conditioning station saves roughly 3 to 5 seconds per cycle depending on bottle size, which compounds to 15 to 22 percent higher hourly output. For volume-driven production where the same bottle runs for weeks at a time, this throughput advantage directly determines the capital payback.<\/p>\n

Where 4-Station Architecture Wins Instead<\/h3>\n

Oval, flat-sided, or asymmetric bottles \u2014 premium cosmetic containers, decanter shapes, unusual brand silhouettes \u2014 often require differential preform heating to stretch evenly into all corners of the mould. The dedicated conditioning station on a 4-station machine like the \u090f\u091a\u091c\u0940\u0935\u093e\u0908150-\u0935\u09404<\/a> applies infrared heat selectively to specific preform zones, which prevents the thin-wall corners that otherwise cause rejects. For complex geometries, the cycle time penalty of the extra station is worth it because the alternative is unacceptable reject rates.<\/p>\n

Comparison Table<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n
Factor<\/th>\n3-Station BPET-94V3<\/th>\n4-Station Alternatives<\/th>\n<\/tr>\n<\/thead>\n
Cycle Time (500 ml round bottle)<\/td>\n13-15 sec<\/td>\n16-18 sec<\/td>\n<\/tr>\n
Hourly Output (6-cavity, 500 ml)<\/td>\n~1,650 bph<\/td>\n~1,350 bph<\/td>\n<\/tr>\n
Energy Use (relative)<\/td>\nLower (no reheat)<\/td>\nHigher (conditioning load)<\/td>\n<\/tr>\n
Footprint<\/td>\n4.8 \u00d7 2.05 m<\/td>\n5.0 \u00d7 2.05 m (or more)<\/td>\n<\/tr>\n
Complex Oval Bottle Capability<\/td>\n\u0932\u093f\u092e\u093f\u091f\u0947\u0921<\/td>\n\u0909\u0924\u094d\u0915\u0943\u0937\u094d\u091f<\/td>\n<\/tr>\n
Best For<\/td>\nHigh-volume standard-shape production<\/td>\nPremium complex-shape packaging<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

Inside the 3-Station Cycle \u2014 Step by Step<\/h2>\n

A 3-station ISBM machine completes the entire process from raw resin to finished bottle in a single rotary sweep of 360 degrees, divided into three 120-degree indexed positions. Understanding exactly what happens at each station is key to dialing in process parameters for your specific resin and bottle geometry.<\/p>\n

Station 1 \u2014 Injection Molding with 785 KN Clamping<\/h3>\n

Raw PET, PETG, PC, or other resin feeds from the hopper into the 60 mm plasticizing screw. The screw operates at 180 rpm standard speed with 12.5 KW of nano-far-infrared heating to melt the resin at the required process temperature, typically 275 to 290 Celsius for PET. The 785 KN injection clamping force holds the mould closed during cavity fill at peak pressures up to 90 MPa. The neck finish is fully formed at this station with thread tolerance held within 0.02 mm, which is the dimensional accuracy Korean automated capping lines require for leak-proof sealing.<\/p>\n

Station 2 \u2014 Stretch Blow with Residual Heat<\/h3>\n

After 120 degrees of indexing, the preform (still hot at approximately 95 to 110 Celsius after partial cooling on the core rod) arrives at the stretch-blow station. A servo-controlled stretch rod drives axially, elongating the preform against mechanical stops, while high-pressure air in the 2.0 to 3.5 MPa range inflates the plastic radially against the chilled blow cavity walls. This biaxial orientation is the fundamental physics that gives stretch-blown bottles their characteristic clarity, drop resistance, and wall-thickness uniformity. The 298 KN blow clamping force per side is sized for wide-mouth geometries up to 110 mm neck diameter, where projected mould area is significantly larger than for standard cosmetic bottles.<\/p>\n

Station 3 \u2014 Take-out & Cooling<\/h3>\n

The turntable indexes the final 120 degrees, carrying the formed bottle into the take-out position. A servo-driven gripper strips the bottle from the core rod and places it upright on the exit conveyor. Because the bottle is still slightly warm at this stage (approximately 45 to 60 Celsius), we recommend a minimum 2-meter conveyor run to ambient air before the bottle reaches any downstream packaging station, which allows the PET to complete its dimensional stabilization. For pharmaceutical and food-contact applications, the entire cycle from resin feed to bottle exit happens inside an enclosed cell with zero human contact, which satisfies GMP and food-safety requirements without any additional isolation hardware.<\/p>\n

\"3-station<\/p>\n

<\/p>\n

Application Scenarios \u2014 Where the BPET-94V3 Excels<\/h2>\n

The four application areas below account for the majority of Korean and East Asian \u092c\u0940\u092a\u0940\u0908\u091f\u0940-94\u0935\u09403<\/strong> deployments since 2023. All share one common characteristic: high-volume production of standard round bottle geometries where throughput and energy economics matter more than shape complexity.<\/p>\n

Mid-Size Beverage Bottles (500 ml \u2013 2 L)<\/h3>\n

\"mid-size<\/p>\n

Korean regional beverage bottlers producing 500 ml juice, 1 L isotonic sports drinks, and 1.5 L bottled water have moved production from aging 2-step lines onto the BPET-94V3 over the past two years. On a 6-cavity 500 ml configuration, the machine delivers roughly 2,800 bottles per hour, which matches the daily throughput requirement of a mid-tier regional brand. Energy cost per bottle drops by 30 to 35 percent compared to the previous 2-step line, because the preform never cools down between injection and blow \u2014 there is simply no reheating cycle to pay for.<\/p>\n

Household Chemical & Detergent Containers<\/h3>\n

\"household<\/p>\n

Dishwashing liquid, laundry detergent, bathroom cleaners, and fabric softener bottles in 500 ml to 1.5 L formats are a natural fit for 3-station production because the geometries are round, the volumes are large, and the price sensitivity is high. A Korean household chemical contract filler running 1 L bottles on 4-cavity tooling reported hourly output of 1,400 bottles at commissioning, sustained across 12-hour continuous shifts. The 785 KN injection clamping handles the slightly higher-IV PET grades that these applications prefer for chemical compatibility.<\/p>\n

Edible Oil & Cooking Sauce Packaging<\/h3>\n

\"edible<\/p>\n

Sesame oil, soybean oil, and specialty cooking sauces are packaged in 500 ml to 2.5 L PET bottles that need excellent oxygen barrier and reasonable drop resistance. The biaxial molecular orientation from the stretch-blow process gives these bottles a barrier improvement of 15 to 20 percent versus simple extrusion blow, and the 3 station injection stretch blow molding machine<\/strong> cycle time keeps per-bottle cost competitive against imported PET containers. Korean cooking oil brands in Daegu and Jeonju have reported reject rates below 0.3 percent after the first month of production stabilization.<\/p>\n

Standard-Shape Cosmetic & Personal Care Bottles<\/h3>\n

\"standard<\/p>\n

Round shampoo bottles, conditioner containers, body wash flacons, and lotion bottles in 200 ml to 800 ml formats benefit from the 3-station cycle economics. These are not the premium oval or flat-sided K-beauty bottles that would demand 4-station thermal conditioning \u2014 these are the workhorse round packaging that makes up 80 percent of the Korean personal-care volume market. On 8-cavity 200 ml tooling, the BPET-94V3 hits 4,200 bottles per hour, making it the right choice for contract fillers serving private-label supermarket brands.<\/p>\n

<\/p>\n

Core Advantages at a Glance<\/h2>\n

Six strengths define the EP-BPET-94V3 against both competing 3-station platforms and larger 4-station alternatives. Each has been measured on installed production lines across Korea and East Asia.<\/p>\n

\"\u0907\u0902\u091c\u0947\u0915\u094d\u0936\u0928-\u0938\u094d\u091f\u094d\u0930\u0947\u091a-\u092c\u094d\u0932\u094b-\u092e\u094b\u0932\u094d\u0921\u093f\u0902\u0917-\u090f\u092a\u094d\u0932\u093f\u0915\u0947\u0936\u0928-6\"<\/p>\n

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Short-Cycle Architecture<\/h3>\n

Three rotary positions instead of four cuts roughly 3 to 5 seconds from every cycle, compounding to 15 to 22 percent higher hourly output on standard round bottle production.<\/p>\n<\/div>\n

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785 KN Clamping Rigidity<\/h3>\n

The highest injection clamping force in any 3-station class we have benchmarked, which allows 8-cavity high-output tooling without flashing even at elevated cavity pressures.<\/p>\n<\/div>\n

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1 to 8 Cavity Flexibility<\/h3>\n

One chassis covers 4.5 L bulk water jugs down to 200 ml retail bottles. Mould changeovers between cavity counts run under 3 hours with a trained crew.<\/p>\n<\/div>\n

\n

Servo Pump Precision<\/h3>\n

Inovance and WEICHI servo drives hold indexing repeatability within 0.03 mm over a million cycles. Verified on Korean installed bases during 2024 production audits.<\/p>\n<\/div>\n

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Energy Efficient Design<\/h3>\n

No reheating cycle means 30 to 40 percent energy reduction versus equivalent 2-step production lines. Average steady-state draw measures 45 to 50 KW against the 77.5 KW nameplate peak.<\/p>\n<\/div>\n

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Hot-Preform Transfer<\/h3>\n

The preform stays on the core rod from injection through blow, never exposed to ambient moisture or handling. This closed-loop path satisfies GMP cleanroom expectations without additional enclosures.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

Hot-Preform vs Cold-Preform \u2014 Why One-Step Beats Two-Step<\/h2>\n

A question that comes up constantly from Korean factory engineers evaluating their first ISBM purchase is whether a one-step machine really justifies its price premium over a two-step system with separate injection-moulded preforms and downstream reheat-blow machines. The honest answer depends on your bottle volume and quality targets, but for the production volumes typical of Korean regional brands, one-step wins on both dimensions.<\/p>\n

The Two-Step (Cold-Preform) Method<\/h3>\n

In a two-step system, preforms are injection-moulded at one facility, then cooled and stored (often for days or weeks), then shipped to a separate reheat-blow machine that heats them back up to stretch-blow temperature before forming the final bottle. This approach works at extremely high volumes (tens of millions of bottles per year) where preform manufacturing is optimized for scale, but it introduces several compromises: preforms pick up moisture during storage, suffer scuff-mark contamination during transit, and consume energy twice \u2014 once to cool from injection and again to reheat for blowing. Reject rates on two-step production typically run 1 to 3 percent due to preform surface defects.<\/p>\n

The BPET-94V3 One-Step (Hot-Preform) Method<\/h3>\n

The 3-station injection stretch blow moulding machine<\/strong> keeps the preform on the injection core rod from melt pour through final bottle formation. There is no cooling, no storage, no reheating, no transit. Energy consumed at the injection station is partially recovered by using the residual preform heat for blowing. Surface contamination and moisture ingress are eliminated by design. For Korean production volumes in the 3 to 30 million bottle per year range, the one-step approach delivers reject rates under 0.5 percent and energy cost per bottle 30 to 40 percent below a comparable two-step line. The BPET-94V3 has become the default answer in this volume band over the past three years.<\/p>\n

\u00a0\"\u0907\u0902\u091c\u0947\u0915\u094d\u0936\u0928-\u0938\u094d\u091f\u094d\u0930\u0947\u091a-\u092c\u094d\u0932\u094b-\u092e\u094b\u0932\u094d\u0921\u093f\u0902\u0917-\u090f\u092a\u094d\u0932\u093f\u0915\u0947\u0936\u0928-4\"\u00a0<\/p>\n

Selection Guide \u2014 Confirm These Before Ordering<\/h2>\n

A correctly scoped BPET-94V3 order ships in 60 to 70 working days from deposit and commissions within one week onsite. Before our engineering team finalizes a quotation, please confirm the following items.<\/p>\n