{"id":440,"date":"2026-04-20T05:10:52","date_gmt":"2026-04-20T05:10:52","guid":{"rendered":"https:\/\/isbm-blow-molding.com\/?post_type=product&p=440"},"modified":"2026-04-20T05:10:52","modified_gmt":"2026-04-20T05:10:52","slug":"ep-bpet-70v4-compact-4-station-injection-stretch-blow-moulding","status":"publish","type":"product","link":"https:\/\/isbm-blow-molding.com\/da\/product\/ep-bpet-70v4-compact-4-station-injection-stretch-blow-moulding\/","title":{"rendered":"EP-BPET-70V4 Kompakt 4-stations spr\u00f8jtest\u00f8bningsmaskine"},"content":{"rendered":"
\n

<\/p>\n

Produktoversigt<\/h2>\n

De EP-BPET-70V4 4-station injection stretch blow moulding machine<\/strong> is Ever-Power’s entry-level answer for Korean cosmetic brand incubators, pharmaceutical R&D labs, and specialty packaging contract fillers who need ISBM-grade bottle quality without the capital cost of a full production-scale line. On a 4.4 meter chassis weighing just 5.1 tons, this platform packages a genuine 4-station rotary cycle (Injection \u2192 Heating, Tail-cutting & Pre-blowing \u2192 Stretch Blow \u2192 Take-out) with 285 KN injection clamping force and 115 KN blow clamping per side. The outcome is a bench-scale footprint with commercial-grade bottle output, which until recently was simply unavailable in this price bracket.<\/p>\n

What makes the EP-BPET-70V4<\/strong> interesting for Korean operators in particular is its dual-function capability. The same machine can be set up either as an injection blow moulding machine<\/strong> (without the stretch rod, used for small pharmaceutical flacons and wide-mouth jars) or as a full spr\u00f8jtest\u00f8bningsmaskine<\/strong> using biaxial orientation for thin-wall transparent containers. Very few compact ISBM platforms offer both modes on the same chassis, and this flexibility is exactly what small-batch contract fillers in Ansan, Suwon, and Incheon need when their client mix shifts between seasonal K-beauty product launches and pharmaceutical pilot runs.<\/p>\n

\"Spr\u00f8jtest\u00f8bning<\/p>\n

Material compatibility is surprisingly broad for a compact machine. The 45 mm screw with 24:1 L\/D ratio handles PET and PETG as expected, but the independent heating architecture also accepts BPA-free Tritan, PCTG, PC, PP, SAN, PMMA, and PS. This resin flexibility makes the EP-BPET-70V4 especially attractive for Korean baby-care and premium-cosmetic brands that need to prototype in Tritan or PCTG before committing to a full-scale production machine. Field data from installed Korean and Vietnamese sites shows reject rates under 0.4% on 150 ml Tritan nursing bottles across continuous 12-hour shifts.<\/p>\n

Ever-Power ships each EP-BPET-70V4 with tooling platens dimensioned for common 4-station mould standards, so buyers who already own compatible ASB-style small-machine moulds can often drop them directly onto the new chassis. For greenfield orders, our in-house mould shop builds the full 1-to-6 cavity tooling range, with typical lead times of 35 to 50 working days. The 4400 \u00d7 1350 \u00d7 2900 mm footprint fits comfortably through a standard Korean factory rolling door, which matters during installation far more than many buyers initially realize.<\/p>\n

<\/p>\n

Technical Specifications & Bottle Capacity Matrix<\/h2>\n

The parameters listed below are verified against production test-run data on installed BPET-70V4 units. Before finalizing a quote, our engineering team confirms the screw size choice (45 mm standard, optional sizes available) against your specific resin IV value and target preform weight. Note that the cavity capacity table is not a hard limit but a practical recommendation \u2014 the physical platen window allows some flexibility above and below these figures for custom geometries.<\/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
Parameter<\/th>\nUnit<\/th>\nValue (EP-BPET-70V4)<\/th>\n<\/tr>\n<\/thead>\n
Maskinlayout<\/td>\n\u2014<\/td>\n4-station rotary, dual-function (IBM + ISBM)<\/td>\n<\/tr>\n
Skruediameter<\/td>\nmm<\/td>\n45 standard (50 mm optional)<\/td>\n<\/tr>\n
Screw L\/D Ratio<\/td>\n\u2014<\/td>\n24 : 1<\/td>\n<\/tr>\n
Teoretisk injektionskapacitet<\/td>\ncm\u00b3<\/td>\n340<\/td>\n<\/tr>\n
Injektionsklemmekraft<\/td>\nKN<\/td>\n285<\/td>\n<\/tr>\n
Blow Clamping Force<\/td>\nKN<\/td>\n115<\/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
Driving Power (rated)<\/td>\nKW<\/td>\n44 (380 V)<\/td>\n<\/tr>\n
Heater Power (rated)<\/td>\nKW<\/td>\n8.9 (220 V)<\/td>\n<\/tr>\n
Oil Tank Capacity<\/td>\nL<\/td>\n460<\/td>\n<\/tr>\n
Max Blow Air Pressure<\/td>\nMPa<\/td>\n3.5<\/td>\n<\/tr>\n
Running Air Pressure<\/td>\nMPa<\/td>\n1.0<\/td>\n<\/tr>\n
Machine Dimensions (L \u00d7 W \u00d7 H)<\/td>\nmm<\/td>\n4400 \u00d7 1350 \u00d7 2900<\/td>\n<\/tr>\n
Maskinv\u00e6gt<\/td>\nT<\/td>\n5.1<\/td>\n<\/tr>\n
Compatible Materials<\/td>\n\u2014<\/td>\nPET, PETG, PETE, PP, PC, PCTG, SAN, PS, PMMA, Tritan (BPA-free)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Cavity Configuration & Bottle Capacity<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n
Hulrum<\/th>\nMax External Neck (mm)<\/th>\nMax Body Diameter (mm)<\/th>\nMax Height (mm)<\/th>\nMaks. volumen (ml)<\/th>\n<\/tr>\n<\/thead>\n
1<\/td>\n80<\/td>\n116<\/td>\n300<\/td>\n2500<\/td>\n<\/tr>\n
2<\/td>\n60<\/td>\n99<\/td>\n300<\/td>\n2300<\/td>\n<\/tr>\n
3<\/td>\n45<\/td>\n75<\/td>\n300<\/td>\n1000<\/td>\n<\/tr>\n
4<\/td>\n34<\/td>\n66<\/td>\n200<\/td>\n500<\/td>\n<\/tr>\n
5<\/td>\n30<\/td>\n50<\/td>\n200<\/td>\n300<\/td>\n<\/tr>\n
6<\/td>\n20<\/td>\n44<\/td>\n200<\/td>\n150<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

<\/p>\n

The 4-Station Single-Step Process Explained<\/h2>\n

De 4-station injection stretch blow molding machine<\/strong> layout is the Goldilocks configuration in ISBM engineering. Three-station machines save footprint but combine heating and pre-blowing into a single step, which limits control over preform wall-thickness distribution. Wheel-style platforms deliver maximum throughput but price small buyers out of the market. The BPET-70V4 4-station layout sits between these extremes, dedicating each rotary position to one clearly defined task and keeping the whole cycle inside a 5.1-ton chassis.<\/p>\n

\"spr\u00f8jtest\u00f8bning-str\u00e6k-bl\u00e6sest\u00f8bning-layout-1\"<\/p>\n

Station 1 \u2014 Injection<\/h3>\n

Raw plastic resin feeds from the hopper into the 45 mm plasticizing screw, where it melts under controlled heater bands before being injected at 285 KN clamping force into the preform cavity. The neck finish is formed precisely here, with thread tolerance held within 0.02 mm. For Tritan and PC, our engineers typically recommend a 280 to 310 Celsius melt profile with a 15-second cavity fill followed by 8 seconds of hold pressure.<\/p>\n

Station 2 \u2014 Heating, Tail Cutting & Pre-blowing<\/h3>\n

The turntable indexes 90 degrees, carrying the still-hot preform on its core rod into the conditioning zone. Infrared heaters re-profile the wall temperature so the body region is slightly hotter than the neck for the upcoming stretch step. A servo-driven cutter removes any sprue tail in the same position, and a low-pressure air puff initiates pre-orientation. Skipping this station (as some 3-station machines do) is the most common cause of thin corners on oval cosmetic bottles.<\/p>\n

Station 3 \u2014 Stretch Blow<\/h3>\n

The preform arrives at the blow cavity thermally tuned and dimensionally stable. A stretch rod drops axially at servo-controlled velocity while high-pressure air between 2.0 and 3.5 MPa inflates the plastic radially against the chilled mould walls. This dual action produces biaxial molecular orientation, which is the physical reason a stretch-blown PET bottle resists drops and impact so much better than a simple blow-moulded bottle of the same weight.<\/p>\n

Station 4 \u2014 Take-out<\/h3>\n

A robotic gripper strips each bottle off the core rod and places it upright on the exit conveyor. Because no human hand touches the preform or the finished bottle, surface defects from transfer are effectively zero. On installed Korean pharmaceutical lines, this closed-loop handling is what allows the BPET-70V4 to satisfy GMP cleanroom expectations without additional isolation enclosures.\u00a0<\/p>\n

Dual Function: Injection Blow vs Injection Stretch Blow<\/h2>\n

One feature rarely advertised on compact ISBM machines is the ability to switch between two fundamentally different processes on the same chassis. The EP-BPET-70V4 compact 4-station ISBM machine<\/strong> can be configured as either an injection blow moulding (IBM) machine or a full injection stretch blow moulding (ISBM) machine. The choice is not philosophical; it is dictated entirely by bottle geometry and material performance targets.<\/p>\n

\"Spr\u00f8jtest\u00f8bningsmaskine-applikation-1-2\"<\/p>\n

Run as an injection blow machine, the stretch rod is removed and air pressure alone expands the preform into the final cavity shape. This mode works best for small wide-mouth pharmaceutical flacons, dropper bottles, and creme jars where the height-to-diameter ratio is low, typically under 2:1. IBM is the process of choice when the priority is dimensional accuracy of the neck finish rather than molecular orientation of the body. Operators report cycle times around 12 to 15 seconds on 5 ml eyedrop vials in 4-cavity IBM configuration.<\/p>\n

Switched to full stretch-blow mode, the same machine becomes a genuine spr\u00f8jtest\u00f8bningsmaskine<\/strong> producing tall, slender cosmetic serum bottles, water tumblers, and baby feeding bottles. The stretch rod drives axial elongation, air pressure drives radial inflation, and the resulting biaxial orientation lifts top-load strength by roughly 30 percent and oxygen barrier by up to 20 percent versus plain injection blow. For the same final wall thickness, stretch-blown bottles can be lightweighted by 10 to 15 percent without losing rigidity. This lightweighting is the single largest cost-saving lever in packaging, and it is one reason Korean beverage and cosmetic brands specify ISBM for any container taller than 100 mm.<\/p>\n

Swapping between the two modes on the BPET-70V4 takes a trained technician roughly 45 minutes, mostly spent on the stretch rod assembly and the associated servo cam profile in the PLC. For contract fillers who handle a weekly mix of product types, this mode-switching capability is worth more than it appears on the spec sheet.<\/p>\n

<\/p>\n

Material Compatibility & Application Scenarios<\/h2>\n

The 44 KW barrel heating and independent mould temperature circuits give the compact ISBM machine<\/strong> a broader resin window than its size suggests. Below are the four application scenarios where Korean and East Asian customers have deployed the BPET-70V4 successfully over the past three years.<\/p>\n

Small-Batch Cosmetic & K-Beauty Sample Bottles<\/h3>\n

Korean cosmetic brands launch dozens of new SKUs per year, and each launch demands pristine 15 ml to 50 ml PETG sample bottles for gift-with-purchase and influencer kits. The BPET-70V4 running a 4-cavity mould delivers roughly 1,400 bottles per hour at 30 ml format, which matches the typical short-run quantity of 20,000 to 50,000 units. Because the machine is a true small PET bottle blowing machine<\/strong> rather than an oversized line, the set-up and tear-down time is low enough to justify a 1-week production campaign.<\/p>\n

Pharmaceutical R&D & Pilot-Scale Production<\/h3>\n

For drug developers running clinical trial batches, the BPET-70V4 offers a GMP-clean bottle production path without committing to a full production machine. Single or 2-cavity configurations produce 50 ml to 500 ml pharmaceutical syrup bottles, oral-suspension vials, and saline flacons. The enclosed melt-to-bottle cycle eliminates contamination risk, and reject rates stay under 0.3 percent when the machine is paired with a properly sized chiller and a resin pre-dryer.<\/p>\n

\"spr\u00f8jtest\u00f8bning-str\u00e6k-bl\u00e6sest\u00f8bning-applikation-6\"<\/p>\n

BPA-Free Tritan Baby Feeding Bottles<\/h3>\n

Tritan processes within a narrow thermal window, and smaller machines often struggle to hold melt temperature stable during extended shifts. The BPET-70V4 44 KW barrel heating delivers measured thermal stability within 2 Celsius of setpoint over 12-hour runs, which shows up directly in the optical clarity of the final bottle. A 3 or 4-cavity mould producing 150 to 240 ml baby bottles is the most common configuration, and buyers consistently report near-zero yellowing across 100,000+ unit campaigns.<\/p>\n

Pilot-Scale Beverage & Specialty Containers<\/h3>\n

Small Korean craft beverage brands \u2014 kombucha, cold-brew coffee, specialty juice \u2014 often need to test a new bottle design before committing to a production volume that would justify a large four-station machine. The BPET-70V4 with a 3-cavity 1000 ml mould delivers enough throughput for a 500-case proof-of-concept run, and if the product succeeds, the same moulds can be rolled onto a larger Ever-Power line like the HGY200-V4<\/a> for scale-up.<\/p>\n

<\/p>\n

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

The following six strengths are what Korean and East Asian buyers consistently cite when choosing the compact EP-BPET-70V4 over larger or more generic 4-station ISBM platforms.<\/p>\n

\n
\n

Compact 4.4 m Footprint<\/h3>\n

Fits through a standard Korean factory rolling door, leaves room for auxiliary chillers and compressors, and frees up 35 percent more floor area than equivalent Japanese machines of the same cavity capacity.<\/p>\n<\/div>\n

\n

Dual IBM + ISBM Capability<\/h3>\n

Run as a pure injection blow moulding machine for dropper bottles and flacons, or switch to full stretch-blow for tall cosmetic and baby bottles. The same chassis covers both processes with a 45-minute mode swap.<\/p>\n<\/div>\n

\n

BPA-Free Resin Ready<\/h3>\n

Independent 44 KW barrel heating and 8.9 KW mould heating hold Tritan and PCTG within a 2 Celsius thermal band, which is the benchmark for clear, non-yellowing baby and cosmetic containers.<\/p>\n<\/div>\n

\n

Low Capital & Operating Cost<\/h3>\n

Roughly 35 percent lower upfront cost than comparable Japanese platforms, with average hourly power draw of 22 to 28 KW during steady-state production versus the 44 KW nameplate peak.<\/p>\n<\/div>\n

\n

Precision Servo Control<\/h3>\n

Servo-driven injection and turntable indexing hold repeatability within 0.03 mm over a 1 million cycle service life. Verified on Korean and Vietnamese installed bases during 2024 factory audits.<\/p>\n<\/div>\n

\n

Easy Mould Changeover<\/h3>\n

Tool-less quick-release clamps on the preform mould allow full cavity swaps in under 90 minutes. Critical for contract fillers handling 3 to 5 different bottle formats per week.<\/p>\n<\/div>\n<\/div>\n

<\/p>\n

When BPET-70V4 Is the Right Size \u2014 Comparison with Larger HGY Series<\/h2>\n

Ever-Power offers six distinct 4-station platforms ranging from this 5.1-ton BPET-70V4 up to the 28-ton HGY650-V4. Picking the correct tonnage and injection capacity for your production volume is the single biggest factor in total cost of ownership over the next decade. The table below summarizes the practical trade-offs. The comparison is offered for selection guidance only and does not imply any performance deficiency in the larger models, each of which is optimized for its own production scale.<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n
Criterion<\/th>\nBPET-70V4<\/th>\nHGY150-V4<\/th>\nHGY250-V4<\/th>\n<\/tr>\n<\/thead>\n
Skruediameter<\/td>\n45 mm<\/td>\n50 mm<\/td>\n55 mm<\/td>\n<\/tr>\n
Injektionsklemmekraft<\/td>\n285 KN<\/td>\n150 kn<\/td>\n300 kn<\/td>\n<\/tr>\n
Max Cavity Count<\/td>\n6<\/td>\n8<\/td>\n14<\/td>\n<\/tr>\n
Maskinv\u00e6gt<\/td>\n5.1 T<\/td>\n6 T<\/td>\n16 T<\/td>\n<\/tr>\n
Footprint (L \u00d7 W)<\/td>\n4.4 \u00d7 1.35 m<\/td>\n4.2 \u00d7 1.4 m<\/td>\n6.3 \u00d7 2.4 m<\/td>\n<\/tr>\n
Peak Rated Power<\/td>\n52.9 KW<\/td>\n53.2 KW<\/td>\n82.7 KW<\/td>\n<\/tr>\n
Dual IBM Function<\/td>\nJa<\/td>\nOptional<\/td>\nIngen<\/td>\n<\/tr>\n
Best Fit Application<\/td>\nPilot, R&D, K-beauty short runs<\/td>\nMid-range cosmetic & pharma<\/td>\nHeavy-wall large-jar production<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Buyers who land on the BPET-70V4 typically fit one of three profiles: a K-beauty incubator running short production campaigns, a pharmaceutical R&D group doing clinical-trial batch work, or a contract filler who needs an agile secondary machine alongside a larger primary line. For higher-volume continuous production, the HGY150-V4<\/a> offers more cavity capacity, and the HGY250-V4<\/a> steps up to heavy-wall 300 KN injection clamping. Full details on both sit inside the 4-stations ISBM-maskine<\/a> category on our main site.<\/p>\n

<\/p>\n

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

A correctly scoped BPET-70V4 order ships in 60 working days and commissions in a week. A poorly scoped order can double that timeline with avoidable rework. Please confirm the following items with your project engineer before we finalize a quote.<\/p>\n