Autobag 4″ X 6″ 3 mil Pre-opened Bags on a Roll 1500 per Roll

Vitamin & Supplement Pre-Opened Auto-Style Bags 4″×6″ — 3 mil LDPE | Automated Bagging Roll

Pre-opened LDPE bags on a roll in 4×6 in. at 3 mil for automated and semi-automated bagging systems in nutraceutical, pharmaceutical, and small parts packaging lines. Manufactured from 100% virgin Low Density Polyethylene resin meeting FDA/USDA specifications. Durable bottom seal and extra-strong side seals support high-speed automated bag loading without film separation or jam. 1500 bags per roll provides extended uninterrupted run time on automated fill-and-seal systems.

Specs: 4×6 in. | 3 mil | LDPE 100% Virgin Resin | Pre-Opened Auto-Style Roll | 1500 Bags/Roll | FDA/USDA Compliant

Applications

The 4×6 in. auto-style pre-opened roll is a standard configuration for packaging vitamins, supplement capsules, softgels, and sample packs on continuous automated bagging lines. Additional production applications include small hardware and fastener automated packaging (nuts, bolts, washers, and small stampings), small plastic component parts kitting, confectionery and candy portion packing, medical consumable packaging, and e-commerce fulfillment operations using automated bag-opening and product-drop systems. The 3 mil gauge provides adequate product protection and seal integrity for both heat-seal and mechanical-clamp closure systems.

Features

Pre-opened format orients each bag for immediate automated indexing and fill without operator intervention. The sequential roll format maintains bag alignment through the automated system’s dispensing and opening mechanism. Durable bottom seal and reinforced side seals resist peel-back under high-speed automated loading operations. Superior clarity supports post-fill product verification by machine vision systems or manual QC inspection. All closure options are supported: heat sealing, stapling, tying, or tape closure for lines that use manual final close.

Material Notes

100% virgin LDPE resin with FDA/USDA compliance is appropriate for direct-contact food, nutraceutical, and pharmaceutical packaging. At 3 mil, this film provides heavy-gauge protection against puncture from hard tablet or capsule shapes during high-speed automated fill, while maintaining roll flexibility required for accurate indexing on automated bagging equipment. All gauge specifications are nominal.

Use Case Notes

Vitamin and supplement contract packers use 4×6 pre-opened rolls as the standard bag format for single-serve and sample-size packet lines, where the 4 in. width accommodates a typical 1–2 oz product count with adequate headspace for sealing. Small parts and hardware distributors use this format on automated count-fill or weight-fill systems where per-bag pricing and high bag count per roll are key efficiency metrics. The 1500-bag roll minimizes roll changeover frequency on high-throughput lines and reduces per-bag material cost compared to pre-counted box formats.

Common Questions

Are these compatible with standard automated bagging equipment? These pre-opened auto-style bags on roll are designed to be compatible with standard automated and semi-automated bagging systems that accept side-seal open-top roll stock. Verify mandrel and core diameter compatibility with your equipment specifications before ordering.

What is the maximum fill weight this bag supports? At 4×6 in. and 3 mil gauge, these bags are suited for lightweight-to-medium products typically in the 0.5–3 oz fill range. Maximum fill weight depends on product density, fill distribution, and seal method. For heavier fills, a 4 mil option is recommended.

Can these be used for manual bagging operations? Yes. The pre-opened format is designed primarily for automated systems but can be used manually in semi-automated or hand-fill operations. The sequential roll format supports manual dispense from a roll holder or tabletop dispenser.

Why Buy

3 mil LDPE construction with FDA/USDA compliance supports both food-contact and industrial packaging applications on a single SKU, reducing inventory complexity for mixed-line operations. The 1500-bag roll count extends run time between changeovers on automated systems, reducing labor and downtime cost per unit packed. Available in the standard 4×6 in. format that covers the broadest range of small-item automated bagging applications across nutraceutical, pharmaceutical, and small-parts production environments.