How to Select an Extrusion Blow Molding Machine
Work from the finished part to the machine, mold and production line. This checklist helps turn a product idea into a clear equipment brief.
ExploreBuyer’s guide / Cost planning
What Determines Blow Molding Machine Cost?
A useful budget starts with the product and the complete production line. Compare quotations against the same requirements and scope.
How much does a blow molding machine cost?
The cost depends on the product and the complete scope: machine size and stations, die heads and layers, drive type, the mold, automation, auxiliary equipment, delivery and installation. Two quotations are only comparable when they cover the same product, output and scope, so start from one requirements sheet.
- Machine: stations, heads, layers, drive and options.
- Mold and tooling: cavities, neck tooling, deflashing tools.
- Auxiliaries: loader, chiller, compressor, crusher, conveyors, leak tester.
- Delivery and services: freight, import, installation, training.
- Operation: resin, energy, labor, maintenance and wear parts.
Start with a common specification
A machine price only becomes meaningful when the product, resin, mold arrangement, output target and supplied equipment are defined. A small bottle line and an accumulator-head drum installation solve different production problems. Use a single requirements sheet when requesting and comparing quotations.
1. Machine configuration
List the product envelope and weight, resin grade, layer structure, head arrangement, number of stations and controls. Ask which functions are standard and which are options. Servo drives, a view strip, additional extrusion layers, automatic trimming and take-out equipment can change both the configuration and project scope.
2. Mold and product tooling
Include the mold, cavities, neck tooling, blow pins, cooling connections and any deflashing tools. A quote should make clear which product drawing and tooling revision it covers, who supplies the tooling, and what trials are included. A change of bottle shape can involve more than changing a nominal volume.
3. Auxiliary equipment and utilities
Decide which party supplies material loading and mixing, drying where needed, cooling, compressed air, scrap handling, conveyors and inspection equipment. Review the machine’s connected power separately from expected operating energy. Request a utility schedule for the proposed configuration before planning the factory installation.
4. Delivery, installation and training
Compare the delivery terms, packing, transport, insurance, import responsibilities, installation, commissioning, training and travel scope. These items may be included, excluded or priced separately. Ask for the assumptions in writing so that the offers cover the same work.
5. Operation and maintenance
Budget for resin, product scrap, electricity, cooling, compressed air, staffing, maintenance and wear parts. Evaluate these against an agreed trial product and operating conditions. A dry-cycle figure is not a finished-product output guarantee, and installed kW is not the same as energy consumed per container.
A quotation comparison checklist
| Compare | Ask the supplier to state |
|---|---|
| Product | Drawing, volume, weight, resin and acceptance criteria |
| Machine | Model, stations, heads, layers and options |
| Tooling | Molds, cavities, neck tooling and trimming equipment |
| Line scope | Loading, cooling, compressor, conveyors and inspection |
| Performance trial | Product, material, test duration, accepted output and quality checks |
| Services | Installation, commissioning, training and documentation |
| Commercial scope | Delivery terms, exclusions, schedule, warranty and spare parts |
Can one price represent every blow molding machine?
No. A useful quotation is tied to a particular product and configuration. Send the drawing or sample, resin, weight, output target, factory location and automation needs so that the offer can be scoped consistently.
What should you send for a first estimate?
Provide a drawing or photographs with dimensions, nominal container volume, target weight, resin grade, number of product variants, required output and destination. Identify any existing mold or auxiliary equipment you intend to reuse. If a requirement is still open, label it as open so that the quotation can explain its assumptions.
Move from budget to selection
Use the machine selection guide to prepare your technical brief, then discuss your project with Tongda.
Blow molding machine cost FAQ
How much does a blow molding machine cost?
There is no single price: it depends on the machine size and stations, die heads and layers, servo or hydraulic drive, the mold, automation such as deflashing and take-out, and the auxiliary equipment. A small bottle machine and an accumulator-head drum line are different investments. Ask for quotations against the same product, output and scope.
What should I budget for besides the machine?
The mold and neck tooling, auxiliary equipment (loader, mixer, chiller, air compressor, crusher, conveyors, leak tester), freight and import costs, installation and commissioning, training, spare parts, and factory preparation such as power, cooling water and compressed air.
Why do blow molding machine quotations differ so much?
They often cover different scopes: different stations, heads, drives, molds and auxiliaries, or different delivery terms and services. Compare offers line by line against one requirements sheet.
Are installation and training included in a Tongda quotation?
Operator training and factory layout planning are included with Tongda machines. Installation and commissioning are quoted separately, and the standard warranty is 14 months from shipment from the factory. Ask for each item as a separate line so quotations can be compared.
Is the installed power the same as energy consumption?
No. Installed (connected) power is the total rating of the motors and heaters. Energy used per container depends on the product, cycle and settings, and is best measured in a trial.
Should I buy a new or a used blow molding machine?
It depends on budget, the product and how much risk you can accept on condition, spare parts and support. Tongda’s sales site compares the two options: new vs used blow molding machine.
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