Compare bottle blowing utility proposals with one schedule for each approved bottle format. State the air, cooling and electrical services required at named connection points, then assign who supplies and verifies each item. This makes the quotation useful for factory planning and avoids comparing a blowing machine with another offer that also includes its supporting installation.
Jiangsu ASG Packaging Machinery Group describes the MX rotary bottle blowing arrangement as including the blowing machine, heating oven, automatic conveyor, electrical controls and compressed-air system. Use that equipment description to open a scope discussion. Ask for an itemized proposal identifying the supplied components and the services your factory must provide.
Source: ASG rotary bottle blowing equipment
Compare compressed air at the same connection point
Pressure and flow answer different questions. Atlas Copco’s PET compressor sizing guidance treats both as essential inputs and also considers the bottle and site conditions. Its system-wide approach is a useful basis for a utility discussion; it does not establish the requirements or performance of any ASG configuration.
Request the required pressure and flow at the proposed machine inlet for each agreed bottle format and output. Ask the supplier to distinguish normal operation, peak demand and any startup condition that matters to the project. Give each value its units and reference conditions so differently expressed flow figures can be compared.
Identify the boundary between the factory air supply and the blowing equipment. List the proposed compressor, booster, receiver, air treatment and distribution components, marking each as included, existing or separately supplied. Ask who checks that the complete arrangement delivers the agreed inlet conditions while the other planned factory users are operating.
Technical reference: PET compressor sizing and site conditions
Put air quality and site conditions in the schedule
Alongside pressure and flow, request the proposed air-quality specification at the agreed interface, including how moisture, oil and particles will be assessed where relevant to the application. Define who selects and maintains the treatment equipment and who supplies the test records. Record the required condition without assuming that a compressor type alone verifies the whole distribution system.
Provide the installation location, expected ambient conditions, operating hours and existing air-system information. Identify other equipment sharing the supply and any planned expansion. Have the air-system supplier assess those conditions before you accept a capacity proposal; simply adding spare compressor capacity is not a substitute for that assessment.
Separate the cooling duties before selecting a chiller
The compressed-air installation may use an air-cooled or water-cooled arrangement; Atlas Copco’s PET compressor guidance describes both options. Ask which arrangement is proposed for your project and what it needs from the building. This is a general selection consideration, not a statement that an ASG machine includes either type of compressor.
Separate the blowing equipment’s stated cooling connections from any cooling needed by the air system. Request the duty, supply and return conditions, flow, water-quality requirements and connection details for each applicable circuit. Have the suppliers identify whether a common cooling installation is suitable and which equipment it actually serves.
For an existing factory system, send its available operating information rather than its equipment name alone. Ask for an assessment under the planned simultaneous demand. Record responsibility for pumps, piping, water treatment, heat rejection and installation work wherever these are required by the proposed arrangement.
Technical reference: PET compressed-air cooling options
Distinguish electrical connection size from energy use
Request an electrical load schedule for the complete quoted scope, with supply requirements and connection responsibilities stated. Identify the blowing equipment and every quoted auxiliary separately. Include proposed air and cooling equipment in the discussion rather than treating the blowing machine’s electrical information as a factory-wide total.
If an energy-consumption figure is offered, ask what was measured, under which bottle format and operating conditions, and which equipment was inside the measurement boundary. Separate connection-sizing information from measured operating consumption. Compare offers using the same equipment boundary, accepted output and treatment of startup, idle operation and rejects.
Give every interface an owner
Create a short responsibility list that both the machine supplier and the factory team can review. An unresolved item should stay visible in the quotation instead of becoming an installation assumption.
- Supply scope: identify every included, existing and separately purchased utility component.
- Connections: mark the air, cooling and electrical handover points on the proposed layout.
- Installation: allocate piping, cabling, supports, commissioning materials and site preparation where applicable.
- Verification: name who provides instruments, records and approval for each agreed utility condition.
Confirm utilities during an agreed production test
Agree the bottle, preform, output, operating period and supporting equipment for the proposed acceptance run. Record inlet conditions and the agreed measurements while assessing the accepted bottles. If existing factory services are part of the installation, define what must be demonstrated on site as well as what can be demonstrated before shipment.
Send ASG the format list, factory layout and available utility information together. Request one configuration-specific schedule with assumptions, exclusions and verification responsibilities. That schedule gives your production and purchasing teams a clearer comparison than an equipment price or an isolated consumption figure.