Demand is established
Confirmed production requirements use the higher capacity while leaving a realistic maintenance and changeover margin.
72 cavity high-output system review
72 Cavity PET Preform Mold
Use 72 cavities when demand exceeds 64 and the extra 96-cavity capacity is not yet needed.
A 72-cavity mold is a high-output production option between 64 and 96 cavities. Its value depends on usable production demand and a coordinated injection, hot-runner, cooling, control, take-out and service platform.
The photographs show a supplied 72-cavity configuration reference. Final neck finish, part weight, runner architecture, mold dimensions, controls, utilities and acceptance criteria follow the approved proposal and drawings.
Cavity count
72 cavities
Output step
+12.5% vs 64 per cycle
Selection basis
Right-sized high-volume demand
Qualification
Machine, runner and trial
Cavity selection
72 cavities is best suited to a measured production requirement
Shortlist 72 cavities when capacity is commercially useful and the entire production system is ready.
+12.5%
parts per cycle versus 64 cavities
The eight-cavity gain is exact at a common cycle. Compare its business value with the added platform, maintenance and utility requirements.
Platform compatibility is documented
The exact machine, controls, utilities, mold handling and take-out requirements have been checked against the proposal.
Supplier and plant evidence is adequate
The buying team can evaluate project drawings, runner scope, trial plan, cavity samples, critical spares and maintenance responsibility.
Product definition
Define the preform before fixing the 72-cavity mold
The approved neck, weight, resin, bottle application and acceptance sample define the molded part, shot, stack geometry, cooling demand and machine feasibility.
View imageMold output
72 PET preforms per completed molding cycle
Neighbor relationship
12.5% more parts per cycle than 64; 25% fewer than 96
Representative use
Established high-volume PET preform programs with a supported production platform
Neck program
PCO 1881, PCO 1810, 29/25, 30/25 or another drawing-defined finish
Preform weight
Defined by the approved part drawing and used for the 72-cavity shot calculation
Part shot basis
72 x approved preform weight, plus the agreed process allowance
Platform basis
Exact injection unit, mold envelope, controller, utilities, take-out and handling
Evidence basis
Traceable cavity-level samples and documented high-cavity trial conditions
Construction and service scope
Specify the complete 72-drop production system
The listed material and component package provides the quotation basis. The final proposal and approved drawings record the selected materials, runner, controls, cooling and replaceable parts.
Mold base
Available basis: 420 stainless steel
Core, cavity and neck ring
Available basis: M333, hardened to HRC 48-51
Heat treatment
Available basis: German Ipsen equipment
Hot-runner components
Available basis: German HOTSET heaters with PCT nozzles and insulators
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View imageQualify the production platform before comparing price
Review the approved preform and 72-cavity total shot together with the exact machine specification, proposed mold dimensions, controller, cooling and handling method. This gives every supplier the same platform and interface basis for price comparison.
- Use exact machine documents
- Check all utility interfaces
- Confirm mold handling
Define runner and trial evidence
Ask how the runner and cooling concepts will be reviewed and what cavity-level evidence will be delivered. Use an executable acceptance plan that links samples and measurements to the approved part and trial conditions.
- Request traceable samples
- Record trial conditions
- Define corrective-action closure
Quantify the capacity gain over 64 cavities
Compare 64 and 72 cavities with the same preform, verified cycle, operating hours and utilization. The eight-cavity increase should create useful saleable output on a machine, utility and maintenance plan that supports the larger system.
- Use one output calculation
- Document the machine delta
- Confirm maintenance capacity
Machine and useful output
Calculate capacity, then verify machine compatibility
The calculator shows the required cycle for each standard cavity option at the requested output, then uses the buyer's entered trial or production cycle to recommend an option.
Injection unit
Approved part shot, screw diameter, pressure, recovery and plasticizing capacity
Mold envelope
Platen, tie bars, mold-height range, mounting pattern and proposed mold drawing
Mold movement
Opening stroke, daylight, take-out clearance and mold handling method
Hot-runner control
Temperature zones, connectors, controller capacity and valve-gate actuation
Plant utilities
Cooling-water temperature, pressure and flow plus electrical, air and hydraulic interfaces
Production basis
Approved preform, PET resin, verified cycle, required output, operating hours and downtime margin
Cavity feasibility
Required cycle for each cavity option
Cavity comparison
Enter weight and output
The result will show the cycle ceiling and part mass for 24, 32, 48, 64, 72 and 96 cavities. A specific recommendation appears only when a verified cycle is entered.
243248647296
The comparison uses preform weight for part mass and a verified cycle for output selection. Wall thickness, geometry, PET resin, cooling water, hot runner, machine performance and quality requirements complete the engineering review.
Neighbor comparison
64 cavities vs 72 cavities vs 96 cavities
Use one approved preform, one verified cycle basis, one operating calendar and one utilization assumption to create a meaningful numerical comparison.
| Decision factor | 64 cavities | 72 cavities | 96 cavities | Buying implication |
|---|---|---|---|---|
| Parts per cycle | 64 preforms | 72 preforms | 96 preforms | 72 adds eight parts over 64; 96 adds another 24 parts at the same cycle. |
| Part shot basis | 64 x approved weight | 72 x approved weight | 96 x approved weight | Use the approved part and process allowance for every machine calculation. |
| Capacity role | Controlled high-output step | Right-sized high-volume step | Maximum single-mold output | 72 should close a confirmed capacity gap while avoiding 96-cavity capacity the plant cannot yet use. |
| System qualification | 64-drop system | 72-drop system | 96-drop system | Price comparison starts only after the exact machine, runner, controller, cooling and handling interfaces are closed. |
| Selection trigger | 64 meets demand | 72 capacity is productive | 96 capacity is productive | Use saleable output, product mix and operating margin to select the smallest supported system that meets the plan. |
Trial and acceptance
Make the 72-cavity shipment decision from traceable evidence
Acceptance should be executable: approved part and machine basis, recorded trial conditions, identifiable cavity samples, agreed checks and corrective-action closure before packing.
01
Freeze the approved part basis
Approve the preform drawing, neck finish, weight, PET grade, color and visible quality requirements before final design.
02
Close the machine and utility interfaces
Confirm shot, platen, tie bars, mold height, opening, controller, cooling, actuation, take-out and handling against the proposed mold drawing.
03
Record the agreed trial condition
Run with the agreed machine and PET resin, then record process settings, cooling conditions and the verified cycle used for acceptance.
04
Check all 72 cavities
Confirm normal molding from all cavities and provide a complete 72-piece, cavity-identified sample set for the agreed neck, weight, gate, appearance and molding checks.
05
Close corrective actions before packing
Provide the agreed trial video and inspection records, close failed checks, then verify documents, spares, rust prevention and export packing.
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View imageDefine production-continuity spares before the order
Quantities and part numbers belong in the quotation and final supplied-parts list.
Cavity insert, core and neck ring
Gate insert, valve pin and nozzle
Heater, thermocouple and insulator
Controller module and solenoid valve
Water connectors, seals and identified fasteners
72-cavity RFQ
Send the inputs that change this decision
A 72-cavity request needs proven demand, exact machine data and a defined evidence package. Include 64 on the same technical basis so the capacity and system difference is visible.
Approved preform drawing, resin and weight
Confirmed production requirement
64 versus 72 comparison basis
Exact machine and controller data
Cooling, utilities and take-out information
High-cavity trial sampling requirements
Critical spares and maintenance responsibility
What happens next
- 01Prove the required high-volume output and realistic utilization
- 02Compare 64, 72 and 96 on the exact machine, runner and utility platform
- 03Return the supported configuration, cavity-level trial plan and critical spares
Buyer questions
72-cavity technical FAQ
These answers explain the selection method. Exact performance remains tied to the approved part, machine, utilities and recorded trial conditions.
01What supports the choice of a 72 cavity PET preform mold?
Useful demand, exact machine-system compatibility, runner and cooling feasibility, executable cavity-level trial evidence, critical spares and plant maintenance readiness support the selection.
02How is a 72-cavity quotation different from a 64-cavity quotation?
Compare capacity, mold envelope, total shot, runner and control architecture, cooling, utilities, trial coverage, spares and platform requirements on the same part basis.
03Which evidence best qualifies a 72-cavity supplier?
Review relevant project drawings or scope, trial evidence, cavity sample method, component and spare information, and a clear responsibility path.
04How should 64 and 72 cavities be compared?
Use the same preform, resin, machine, cycle basis, operating hours and utilization, then compare useful capacity, total shot, mold envelope, controls, cooling, spares and maintenance burden.
Next decision