News & Insights

Topics covered: PET preform molds, hot runners, closures, blow molds and rPET

Each article answers one concrete question that comes up when a plant changes a product, a material, a machine or a supplier. The articles fall into five topic areas.

• Blow molds and filling: hot fill vs cold fill PET blow molds, which beverages each mold type suits and what to specify when ordering. Standard PET deforms above about 60°C, while hot fill runs at about 85–95°C.
• Closures: compression vs injection molding for plastic caps, the molds each process needs and how to decide which fits your cap line.
• Replacement and compatible tooling: compatible replacement molds for existing PET injection systems, replacement parts and tooling conversion for Husky, SACMI and Otto preform molds, replacement molds and hot runners for SACMI, SIPA and NETSTAL machines, and drop-in replacement hot runners.
• Upgrades and troubleshooting: increasing cavitation on an existing preform mold, finding the causes of slow cycles and preform defects, and moving a PET bottle line to 100% rPET.
• Supplier evaluation: how LIHE compares with OEM suppliers for cap molds, blow molds and retrofits, the risks of non-OEM molds and how to control them, and what to check when buying Husky-compatible preform molds.

Reading path for buyers and project owners

• Start with the article that matches your decision: new blow mold, new cap process, or reuse of an existing preform mold.
• Read the comparison tables first; they summarise the trade-offs in one place.
• Note the published LIHE figures in each article, such as lead times of 20 days for pilot molds and 8 weeks for standard PET molds, and use them for planning.
• Finish with the FAQ section, which answers the questions buyers most often ask about scope and compatibility.
• Follow the related product links at the end of each article to the matching product page.

Reading path for plant and maintenance engineers

• For a running problem, start with the troubleshooting article: it gives a step-by-step procedure and a defect table before you decide whether to call in the mold maker.
• Use the step-by-step sections as a checklist for a conversion: they follow the order in which a line is changed.
• In the rPET article, check the defect and cause lists against what you see on your preforms before changing settings.
• In the tooling conversion article, check which worn parts can be reproduced from your existing Husky, SACMI or Otto parts; replacement parts take 4 weeks.
• Use the references at the end of each article to check general engineering background, such as how PET behaves or how compression molding works.

Reading path for procurement teams

• When qualifying a non-OEM supplier, read the supplier evaluation articles first: they include a risk checklist of what to verify before ordering and questions to ask any mold supplier.
• Use the articles to understand which technical inputs your engineers must provide before a quote can be prepared.
• Compare routes by cost logic: retrofitting an existing mold for lightweighting costs 25%–40% of a new mold price, according to LIHE's published figures.
• Check guarantee and lead time statements: the 3-year leakage-proof guarantee applies to Husky Ultra-type hot runners; replacement parts and cap mold parts take 4 weeks.
• Note that articles do not contain prices; prices are always set in a project quotation.

Which article answers which question

How to turn an article into a precise enquiry

1. Step 1: Pick the article that matches your project and read its key numbers and FAQ.
2. Step 2: Write down the inputs the article asks for, such as neck finish, preform weight, cavitation, machine model and filling type.
3. Step 3: Collect drawings or samples of your current preform, cap or bottle.
4. Step 4: Send the inputs to sales@lihe-preform.com, quoting the article title so the engineering team knows which route you are considering.
5. Step 5: Review LIHE's engineering feedback and quotation, then confirm the scope and lead time.

How LIHE writes its technical content

• LIHE-specific figures, such as CPK ≥ 1.33, defect rates as low as 0.0064% and cavitation up to 160 cavities, come only from data LIHE publishes on this site.
• General engineering statements are supported by external references listed at the end of each article.
• Each article shows its publication date and author, the LIHE Precision Engineering Team.
• Articles are published in English, Russian and Spanish with the same content in each language.
• Articles explain trade-offs plainly and do not include prices, named customers or performance promises that are not published by LIHE.

Frequently asked questions

Who writes the articles in News & Insights?

The articles are written by the LIHE Precision Engineering Team. LIHE-specific figures come from LIHE's published data, and general engineering background is supported by external references.

Are the numbers in the articles guaranteed for my project?

The LIHE figures are published values, such as 8 weeks for a standard PET mold or a 1g to 2g preform weight reduction through lightweighting. The figures for your project are confirmed in its quotation after the engineering review.

Can I suggest a topic for a new article?

Yes. Send your question to sales@lihe-preform.com. Questions that come up repeatedly from plants and buyers are the basis for new articles.

Are the articles available in other languages?

Yes. Every article is published in English, Russian and Spanish.

Why do the articles not show prices?

Mold prices depend on cavitation, neck finish, machine platform and scope, so they cannot be stated in a general article. Each project is quoted individually.

References

1. Wikipedia — Polyethylene terephthalate
2. Wikipedia — Compression molding
3. Wikipedia — Blow molding
4. Wikipedia — Plastic recycling
5. International Society of Beverage Technologists (ISBT)