Product Introduction:




Brotherpack supplies heavy‑duty 48mm wide thread neck PET preforms with standard 48/41 thread profile, specially engineered for extra large‑capacity plastic containers up to 10 liters, widely used for edible oil, thick condiment and bulk dry food storage jars. Only one unified 48/41 thread standard is available for this neck size.
Critical technical reminder for buyers
This 48/41 thread profile is an independent industry standard, only matching dedicated 48mm plane screw caps and supporting blow molds. It cannot be interchanged with 45mm thread preforms or caps, please confirm your cap & mold specs before ordering samples or bulk goods.
All preform lines are injection‑molded from virgin food‑grade PET resin, supported by SGS FDA food‑contact test reports and factory stamped Declaration of Conformity.
Clear stock preforms support fast bulk order lead time, custom Pantone color injection, custom new mold development and pre‑production sample testing are available for all gram weights from 70g up to 200g.
Core difference in application:
Ultra‑heavy wall construction delivers outstanding structural rigidity, preventing deformation during blow molding of big 5L–10L oil and food containers. Standard 48/41 thread perfectly fits mass‑produced flat plane caps for edible packaging production lines.
| Specification | 48/41 Standard Thread 48mm Neck |
|---|---|
| Neck Standard | 48/41 Standard Plane Thread Neck |
| Outer Neck Diameter | 48 mm |
| Raw Material | Virgin food‑grade PET resin |
| Available Weight | 70g ~ 200g |
| Weight Tolerance | ±0.4~0.6 g |
| Standard Color | Clear transparent |
| Customization | Pantone color injection, custom new mold development |
| Best For | Large edible oil, condiment & bulk dry food storage bottles up to 10L |
| Molding Characteristic | Extra heavy wall for high rigidity large container blow molding |
| Suitable Container Volume | 5L ~ 10L wide mouth food & oil packaging jars |
48/41 Thread Full Weight, Length & Packing
| Gram Weight | Preform Length | Carton Dimension | Quantity Per Carton | Shipping Note |
|---|---|---|---|---|
| 70g | 14.2 cm | 553134 cm | 192 pcs | — |
| 90g | 15.3 cm | 553134 cm | 168 pcs | 1168 cartons per 40HQ container |
| 125g | 17 cm | 53.534.534 cm | 168 pcs | — |
| 130g | 18.9 cm | 543734 cm | 168 pcs | — |
| 150g | 21 cm | 4336.537.5 cm | 126 pcs | — |
| 200g | 22 cm | 4436.539.5 cm | 126 pcs | — |
Download Full Detailed Specifications
The above is a brief overview of our production capacity. Complete data including models, weights, dimensions and carton packing quantities are available in the full specification sheet for download via the button below.
The file is categorized by product line with clear tables, which can be exported as PDF for catalog sharing and quotation reference with clients.
Product Features
Shared Advantages of Both 45mm Thread Types
✅ Manufactured from brand‑new food‑safe virgin PET particles, fully compliant with global food contact packaging regulations.
✅ Strict weight tolerance ±0.4–0.6g ensures uniform thick wall thickness after blow molding for big containers.
✅ Standard 48/41 thread profile perfectly matches mainstream 48mm flat plane plastic caps for edible oil production.
✅ Extra heavy‑weight body structure provides strong stiffness, effectively avoiding bottle bulging or deformation for 5–10L large volume packaging.
✅ Ultra‑wide 48mm large opening simplifies automatic filling of edible oil, thick sauce and granular bulk food.
✅ Clear preforms kept in stock for short bulk order production lead time.
✅ Custom Pantone color injection and custom dimension new mold development service available upon request.
✅ Free pre‑production test samples available for cap and blow mold matching validation.
Compliance and Supply Support
Raw‑material certificate: SGS test report available for virgin PET resin complying with US FDA 21 CFR 177.1520 food‑contact standards.
Factory compliance: We can provide a stamped Declaration of Conformity (DoC) for preforms upon customer request. Order flexibility: Small trial sample orders and full container bulk orders are both acceptable.
Technical service: Professional blow‑molding parameter guidance and neck standard selection consultation.
Production Lead Time: Clear standard preforms: 7–15 working days; custom colored preforms & new molds: 15–30 working days.
Internal Links
Browse our other neck‑size preform series: 29‑25 / 30‑25 30mm PET Preforms
Looking for other preform sizes? Check our full range of PET Bottle Preforms.
Browse finished goods: Squeeze bottles & food‑grade plastic containers.
Our PET Preform and Plastic Bottle Sample Showroom
Our factory showroom displays a wide range of PET preforms and finished plastic bottles in multiple sizes and custom colors. Customers can view different specifications of food-grade packaging samples, including PET preforms for edible oil, beverage and protein powder containers. We support custom mold development and color matching for your packaging projects.


Packaging and Shipping
Packaging
- Preforms are packed in sturdy cartons with protective inner layers to avoid scratches and deformation during transit. Each carton is marked with product model, quantity and shipping information for easy warehouse management.
- Shipping Cost & Tariff Benefits of Bottle Preform Shipment
- Shipping bottle preforms instead of finished bottles brings obvious economic advantages for importers:
- Space saving: Preforms take much less container space compared with finished hollow bottles. More goods can be loaded per container, reducing unit freight cost.
- Lower import tariff: In many countries, bottle preforms enjoy more favorable tariff rates than finished plastic bottles. It helps importers cut customs duty expenditure significantly.
- Reduced damage risk: Compact preform shape is less prone to breakage and collision damage during long‑distance sea or air transport.
- Flexible local production: Buyers can blow‑mold preforms into finished bottles at local factories, realizing on‑demand production and cutting finished‑goods inventory pressure.
Frequently Asked Questions
Q1: Can 45mm thread caps fit our 48/41 48mm preforms?
A: No. The 48/41 thread profile and outer neck diameter are completely different from 45mm neck preforms. Caps, injection molds and blow molds cannot be interchanged, confirm neck standard before purchasing.
Q2: What maximum bottle capacity can these 48mm preforms produce?
A: This heavy-duty 48/41 preform series is specially designed for large containers ranging from 5 liters up to 10 liters, ideal for edible oil and bulk food storage packaging.
Q3: Is the FDA SGS certificate valid for importing these preforms to the USA and UK?
A: Most Western food packaging importers accept the combination of SGS food‑contact resin test report + factory stamped Declaration of Conformity. Additional finished‑preform third‑party testing can be quoted separately if required.
Q4: What is the core advantage of the 48/41 thread standard?
A: The unified 48/41 flat thread is a mature mass-production standard, matched with widely available low-cost 48mm plane caps, and the heavy preform wall keeps large oil bottles rigid without deformation.
Q5: Can we develop custom gram weight or special dimension 48mm preforms?
A: Yes, we provide new mold development service for custom size 48/41 thread PET preforms, custom Pantone color injection is also supported for special brand packaging demands.
Our Certifications and Qualifications
“ISO 90012015 Quality Management System Certificate”
“Food Plastic Packaging Bottles Production Administrative Approval”
“Design Patent Certificate – Hair Dye Press Cap”
“Design Patent Certificate – Hair Dye Press Cap (2)”
“Utility Model Patent Certificate – Cosmetic Outer Cover Clamping Device”
“Utility Model Patent Certificate – New Cosmetic Packaging Bottle”
“Utility Model Patent Certificate – Easy-to-Fix Cosmetic Bottle”
“Utility Model Patent Certificate – Injection Mold for Internal Thread Bottle Cap”
“Utility Model Patent Certificate – Cosmetic Cap Directional Moving Structure”
“Utility Model Patent Certificate – Bottle Cap Forward & Reverse Correction Device”
“Utility Model Patent Certificate – Cosmetic Cap Screwing Equipment”
“Fourth session member unit certificate issued by Suzhou Daily Chemical Industry Association”
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