EP-HGA.P.FS-2CB130(L) 2 Cavities Baby Bottle & PP Bottle Blow Molding Machine

Dual-Cavity Output at 700 BPH

Running two cavities simultaneously, the 2CB130(L) produces 700 bottles per hour — effectively halving the per-unit machine overhead compared to running a single-cavity blow molding machine at equivalent throughput. For baby bottle manufacturers and food-grade PP container producers who have outgrown single-cavity capacity but cannot justify a high-cost four-cavity system, this dual-cavity configuration hits a practical productivity sweet spot.

High-Capacity Heating System

The 66 kW maximum and 38 kW supplementary electrical heating gives the oven sufficient thermal capacity to maintain a precise temperature profile across two simultaneous preform columns. This matters because inter-column temperature variance — a common defect in underpowered dual-cavity systems — produces bottles where one cavity consistently outperforms the other. The 2CB130(L)'s heating headroom eliminates this variance under typical production conditions.

Unified PLC Process Control

Both cavities operate under a single PLC sequence that governs clamping, oven traversal, stretching, blowing, and bottle ejection for the whole machine simultaneously. This unified control architecture means product changeovers involve one recipe recall rather than coordinating two separate machines, and any process adjustments apply symmetrically to both cavities — a significant operational simplification that reduces the scope for human error during format changes.

Multi-Resin Flexibility

PET, PETG, PC, PCTG, and PP are all processable on this plastic blow molding machine without mechanical reconfiguration between materials. The machine's adjustable oven zones and blowing pressure range accommodate the distinct processing windows of each resin family, allowing the same machine installation to cover baby bottle PP production, pharmaceutical PETG containers, and food-grade applications across different production weeks without capital investment in additional equipment.

Robust Frame for Dual-Cavity Loads

At 4000 kg, the machine frame is engineered for the higher clamp forces and larger pneumatic loads generated by operating two cavities simultaneously. Heavy-section weld construction, stress-relieved by heat treatment before final machining, keeps the frame dimensionally stable over years of continuous operation — important when mold alignment tolerance directly affects bottle quality and parting-line cosmetics on premium baby and pharmaceutical packaging.

Patented Innovations

The 2CB130(L) incorporates patented design elements developed through over two decades of focused blow molding machine engineering. These patents cover structural and process subsystems that improve cycle-to-cycle repeatability, extend component service intervals, and reduce unplanned downtime — giving buyers a competitive quality and reliability advantage compared to generic dual-cavity alternatives available on the pet blowing machine market globally.

Preform Injection Mold

• The gate lip is structured as a two-part assembly that locks in coaxial alignment during preform formation — the first quality checkpoint before any material reaches the blowing stage.
• Cooling channels are routed to maximize extraction rate across the preform body, contributing to a shorter cycle time while keeping the preform surface temperature within the required band for consistent blowing results.
• Cavity-forming surfaces are machined from imported 2316 die steel, selected for its combination of corrosion resistance and suitability for precision heat-treatment protocols that extend cavity service life.
• Core plates, cavity plates, and all structural load-bearing elements use 420 stainless steel throughout, providing reliable protection against moisture and chemical exposure across the mold's operational life.
• Component layout allows routine maintenance to be carried out without specialized tooling, keeping scheduled downtime intervals brief and unplanned stoppages to a minimum.
• The standardized fitting system supports interchangeability across multiple preform geometries from a single mold base, reducing the tooling inventory needed for multi-format production lines.

Blowing Mold

• Premium tool-steel grades are specified for all blowing-cavity blocks, chosen for surface hardness and long-term fatigue resistance during the millions of open-close cycles a dual-cavity machine accumulates over its service life.
• Container profiles are developed and fully validated using advanced 3D software before any machining begins, eliminating costly post-cut revisions and ensuring the finished bottle matches the design intent from the first production cycle.
• A broad selection of container silhouettes — including cylindrical, oval, ergonomic grip-waist, and custom contoured shapes — is available to match baby bottle, food, pharmaceutical, and specialty packaging market requirements.
• Cooling-channel geometry is engineered for uniform heat extraction across the full cavity surface, preventing the hot-spot concentrations that cause localized thinning or surface haze on finished bottles.
• Every metal component is produced on CNC machining centers to tight dimensional tolerances, ensuring parting-line accuracy and cavity-to-cavity repeatability across matched mold sets for the two-cavity configuration.

Dual-Track Preform Handling

The machine's preform transfer system feeds two preform columns simultaneously through the infrared oven, maintaining independent position and spacing control for each track. This parallel handling is synchronized by the PLC to ensure both columns receive identical thermal exposure within each production cycle, eliminating the temperature offset between tracks that would produce quality differences between the two cavity outputs.

Extended Infrared Oven

Accommodating two preform tracks simultaneously requires a longer oven section than single-cavity models. The oven's independently controlled lamp zones allow individual temperature adjustment along the full length of each preform column, compensating for any lamp degradation or airflow asymmetry that might develop over time and maintaining even heating across both tracks throughout the machine's service life.

Dual-Cavity Blowing Circuit

The high-pressure blowing circuit supplies both cavities from a common manifold at 30 kg/cm², with independent pressure regulation paths to each cavity. This arrangement ensures that slight differences in preform geometry between the two positions do not create unequal filling — each cavity receives the pressure it needs independently, which is the standard expected of a fully automatic blow moulding machine designed for consistent quality production.

Cooling Water Distribution

Cooling water at 8–10 °C, 5–6 kg/cm², 30 ltr/min is distributed to both the preform injection mold and blowing mold cooling circuits in a balanced arrangement. The circuit design ensures both cavities see consistent coolant temperature and flow rate across the full production shift, which directly controls dimensional repeatability and release timing — critical quality factors when producing baby feeding bottles in regulated markets.

Baby Feeding Bottles at Scale

For baby bottle producers who have grown beyond what a single auto blowing machine can supply, the 2CB130(L) provides the throughput step-up needed to serve larger retail accounts or export markets in Colombia, Australia, and South Korea. PP and PETG resins certified for infant food contact are processed reliably at 700 bph, while the dual-cavity process consistency ensures neck-finish and body-dimension tolerances are met across every pair of bottles produced in each cycle.

Produkcja opakowań farmaceutycznych

Pharmaceutical packaging facilities in regulated markets use this pet blow molding machine to produce oral liquid bottles, tablet storage containers, and multi-dose dropper vessels at production volumes that make economic sense for a secondary packaging line. The machine's consistent wall-thickness distribution and tight dimensional tolerance performance support container validation under pharmaceutical packaging regulatory frameworks across Europe, Latin America, and Asia-Pacific.

Opakowania do żywności i napojów

Cooking oil, drinking water, juice, and condiment containers up to 1000 ml are produced at 700 bph — a throughput that works well for mid-tier food producers handling multiple SKUs under one production roof. The dual-cavity output gives food producers the economic justification to dedicate a blow molding machine to a single bottle design rather than sharing capacity with other products, which reduces setup frequency and improves overall line efficiency.

Kosmetyki i pielęgnacja osobista

Premium cosmetics and personal care brands in markets including the Netherlands, Brazil, and South Korea require bottle packaging with zero visible defects and tight surface-finish specifications. The CNC-machined blowing molds and precisely controlled cooling circuits of the 2CB130(L) deliver the surface quality these brands expect, while the 700 bph output is well suited to the medium production runs typical of seasonal or limited-edition cosmetics product launches.

Specialty & Craft-Shaped Bottles

Novelty promotional packaging, custom-silhouette craft containers, and special-shaped bottles for the gift and lifestyle sector are well suited to this bottle molder's capability. The 110 mm maximum diameter and 250 mm maximum height provide practical design freedom, and the machine's ability to process both transparent and opaque PP formulations opens up aesthetic options beyond the clear containers typically produced on stretch blow molding equipment using PET alone.

Air Compressor

The 2CB130(L) requires 1500 ltr/min low-pressure supply at 7 kg/cm² and 1000 ltr/min high-pressure air at 30 kg/cm². Correctly sizing the compressor to these dual-cavity demands — with an appropriate safety margin for startup surges and distribution losses — is essential for stable production. For pharmaceutical and baby bottle lines, oil-free compressor configurations maintain air purity standards required by food-contact and drug-packaging regulations.

Kontroler temperatury formy

When processing PC or PCTG resins that require elevated mold temperatures, or in tropical production environments where ambient temperature affects cooling circuit performance, a dedicated mold temperature controller stabilizes the coolant temperature supplied to both injection and blowing mold circuits. Maintaining ±1 °C set-point accuracy in both cavities simultaneously is key to producing matched-quality bottles from each cavity position of this dual-cavity blow molding machine.

Bottle Visual Inspection Machine & Chiller

At 700 bph from two cavities, a visual inspection machine operating in-line with the blow molding machine output provides the only practical way to catch individual bottle defects at production speed. Paired with a chiller maintaining 8–10 °C cooling water supply to the 2CB130(L), these auxiliaries complete a fully integrated production cell suited to baby products, pharmaceutical, and food-grade applications where every unit leaving the line is production-accountable.