HGA.ES-3C76

3-Cavity Enhanced Servo Stretch Blow Molding Machine  ·  PET / PETG  ·  3,000 bph  ·  Max 68 mm Body  ·  CE + ISO 9001:2015

The HGA.ES-3C76 is the entry model in the HGA.ES 3-cavity series — delivering 3,000 bph across three simultaneous cavities at 76 mm pitch for standard cosmetic and daily chemical bottle formats up to 700 ml. The enhanced servo drive provides the cavity-to-cavity repeatability and faster cycle timing that 3-cavity production requires to maintain consistent quality across all three positions simultaneously.

In 3-cavity production, the enhanced servo drive addresses the primary quality challenge: maintaining consistent blow timing, stretch rod position, and take-out sequence across all three cavity positions simultaneously. Any timing variation in a 3-cavity machine affects three bottles per cycle — the ES servo's faster response and tighter positional repeatability reduce inter-cavity variation in wall-thickness distribution and bottle weight to a level that standard servo drive systems at this cavity count cannot consistently achieve.

At 3,000 bph, the HGA.ES-3C76 produces 50% more bottles per hour than the 2-cavity HGA.AS-4C76.2 (4,000 bph, 4-cavity) — but at 76 mm pitch, the 3-cavity configuration covers the same bottle body diameter range as the 76 mm pitch 4-cavity machine in fewer cavity count steps. For production planners managing line capacity at the 700 ml and below standard cosmetic format, the 3C76 represents the efficient intermediate between 2-cavity and 4-cavity output at this pitch.

The 18–38 mm neck diameter range covers the standard closure formats used across the full slim cosmetic and personal care bottle range: 18 mm for slim serum and essence bottles, 24 mm for standard toner and lotion, 28 mm for shampoo and conditioner, and 38 mm for wider-mouth daily chemical formats within the 700 ml volume limit. This neck range serves the most common K-beauty and standard cosmetic bottle closure specifications at slim-body format scale.

The 42-position preform holder provides adequate infrared heating residence time for standard slim cosmetic bottle preforms at 76 mm pitch and 3-cavity production rate. With 3 preforms being transferred to the blow station per cycle, the holder must maintain consistent temperature conditioning across all positions simultaneously. The zone-level digital infrared system with 42 positions delivers consistent wall-zone temperature targeting for each of the three cavity preforms per cycle.

At 3,000 bph and standard cosmetic bottle volumes of 100–500 ml, the HGA.ES-3C76 produces 300,000 to 1,500,000 ml of container volume per hour. For high-volume cosmetic filling lines and daily chemical production operations where output targets require more than 2-cavity capacity, the 3-cavity 76 mm pitch configuration delivers the additional throughput within the same body-diameter category without the pitch increase required by 4-cavity configurations at this format scale.

3-cavity commissioning requires careful calibration of the preform holder indexing, infrared zone balance across three simultaneous preform positions, and ES servo parameter setup for the 3-position blow station. Ever-Power's commissioning engineers handle all three aspects — mold mounting for 3-cavity 76 mm pitch tooling, infrared zone balancing, servo timing setup, and cavity-to-cavity uniformity verification — before handover to the operator.

Standard shampoo and conditioner in PET from 200 ml to 700 ml at slim bottle formats up to 68 mm body diameter. High-volume cosmetic filling lines and OEM packaging suppliers requiring more than 2-cavity output at this format scale. Both round and oval standard shampoo bottle profiles within the 68 mm body diameter limit.

Slim PETG toner, essence, lotion, and serum bottles from 100 ml to 500 ml at body diameters below 68 mm. The 18–28 mm neck range covers the slim closure formats used across standard K-beauty and premium cosmetic skincare lines. PETG for optical clarity required in premium serum and toner packaging; PET for standard lotion and toner bottle production.

Standard household cleaning product bottles, dishwashing liquid, hand sanitiser, and personal hygiene product containers from 200 ml to 700 ml in PET. High-volume daily chemical filling lines requiring 3-cavity output for standard slim-body bottle formats. The 38 mm maximum neck diameter covers the wider pump-top and flip-top closures used in daily chemical personal care formats within the 700 ml volume range.

OEM cosmetic packaging suppliers producing standard slim-format PET and PETG bottles for multiple cosmetic brand clients — shampoo, conditioner, body wash, toner, and lotion in mixed SKU production runs where 3-cavity output provides the per-shift volume needed to serve multiple concurrent client orders efficiently. Standard 76 mm pitch mold tooling is widely available for rapid changeover between bottle SKUs in this body diameter range.

Blowing pressure: 35 kg/cm² · Min. flow: 2,400 L/min · Oil-free type required for cosmetic and personal care bottle production

Cooling water: 8–12 °C · Min. flow: 30 L/min · Stable temperature for consistent 3-cavity bottle quality

Operating pressure: 7 kg/cm² · Flow: 1,500 L/min · For preform conveying, cooling air, and mold actuation across 3 simultaneous cavities

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"We upgraded from a 2-cavity machine at 76 mm pitch to the HGA.ES-3C76 to meet our shampoo and conditioner production targets. The 3,000 bph output was the deciding factor. Inter-cavity weight uniformity across all three positions has been consistently within our specification since commissioning. The ES servo drive clearly makes a difference in 3-cavity production compared to the standard servo machines we evaluated."

Machine: HGA.ES-3C76

"We produce slim PETG toner and lotion bottles from 150 ml to 500 ml for K-beauty brand clients. The 3-cavity configuration gives us the output rate our OEM supply schedule requires. Optical clarity in the PETG bottles from all three cavities has been consistent — no visible inter-cavity variation in wall clarity. Commissioning team set up the infrared zone balance for PETG correctly on the first attempt."

Machine: HGA.ES-3C76

"We manufacture standard daily chemical hand sanitiser and dishwashing liquid bottles from 200 ml to 700 ml in PET. The 3-cavity 76 mm pitch was the right configuration for our volume and bottle body diameter. Machine quality has been good. I would note that the machine footprint at 5,570 mm length is longer than we anticipated — plan the floor layout carefully before installation."

Machine: HGA.ES-3C76

"We supply multiple cosmetic brand clients with standard slim-format PET bottles in mixed SKU production. The 3-cavity output at 3,000 bottles per hour lets us run multiple client orders efficiently within a single shift. Mold changeover at 76 mm pitch between bottle SKUs is straightforward — standard 76 mm pitch tooling is widely available. After-sales support from Ever-Power has been responsive and technically competent."

Machine: HGA.ES-3C76

Q1: When should I choose the 3C76 over a 2-cavity machine at 76 mm pitch?

When your production volume target requires more than 2-cavity throughput at the 68 mm body diameter and 700 ml volume range. If your current or projected line capacity shows that 2-cavity output at 76 mm pitch is the bottleneck for meeting customer order volumes, the 3C76 at 3,000 bph provides the next output tier without increasing bottle body diameter or changing pitch. It is also appropriate for OEM suppliers running multiple clients at high combined volume in standard slim-body cosmetic formats.

Q2: What is the key advantage of ES enhanced servo in 3-cavity vs standard servo?

In 3-cavity production, each cycle produces three bottles simultaneously. Any timing variance in the blow sequence, stretch rod advance, or take-out affects all three bottles — and if the variance is not completely symmetric across cavities, it produces systematic inter-cavity quality differences (cavity 1 heavier than cavity 3, for example). The ES enhanced servo's faster response time and tighter positional repeatability reduce this inter-cavity timing variance, producing more consistent bottle weight, wall-thickness, and dimensional uniformity across all three cavity positions throughout an extended production run.

Q3: Can the machine handle both PET and PETG at 3-cavity scale?

Yes. The zone-level digital infrared system handles both PET and PETG at standard slim cosmetic bottle preform weights. PETG requires a narrower preform temperature window than PET — the zone-level control and 42-position holder dwell time provide the necessary conditioning precision for PETG at 76 mm pitch and 3-cavity rate. Infrared zone profiles for PETG are calibrated during commissioning for the specific grade. Contact Ever-Power with your PETG datasheet for a pre-commissioning zone profile recommendation.

Q4: What is the machine footprint and floor layout requirement?

5,570 mm (L) x 2,090 mm (W) x 2,500 mm (H), 3,500 kg. The 5,570 mm machine length is longer than most 2-cavity machines at comparable pitch due to the 3-station blow configuration and extended preform transport path. Allow adequate floor space for the bottle outlet conveyor, mold trolley access from both sides, and auxiliary equipment positioning. Confirm ceiling clearance for the 2,500 mm machine height plus overhead clearance for mold loading.

Q5: What certifications does the machine carry?

CE marking and ISO 9001:2015 are standard on all HGA series machines. CE Declaration of Conformity available before order. Factory acceptance test report with samples from all three cavities inspected for inter-cavity dimensional and weight uniformity supplied at delivery.

Q6: What after-sales support is available?

Remote technical support during business hours. 5-year spare parts availability commitment. On-site engineer dispatch for faults not resolvable remotely. The 3-cavity ES commissioning engineer is available for follow-on site visits if inter-cavity uniformity issues arise that are not resolvable through remote parameter guidance.

Same 3-cavity ES configuration at 114 mm pitch for medium-body bottles up to 95 mm diameter, 40 mm neck, and 1,500 ml — the step above the 3C76 in the 3-cavity ES series.

View HGA.ES-3C114 →

For standard cosmetic bottles with body diameters 68–80 mm at 2,400 bph — the right selection when body diameter exceeds the 3C76's 68 mm limit at standard bottle volumes.

View HGA.ES-2C100 →

Browse the complete Ever-Power HGA cosmetic and daily chemical blow molding series across all cavity counts and pitch configurations.

View Full Series →