LK Packaging KF0405MD 4×5 Medium Duty Kwik-Fill Pre-Opened Auto Bags

LK Packaging KF0405MD Medium Duty 4×5 Kwik-Fill Pre-Opened Bags

The LK Packaging KF0405MD delivers 4″ x 5″ Kwik-Fill® pre-opened bags in 1.9 mil medium-duty LDPE, striking the right balance between strength and economy for versatile auto-bagging lines. The mid-range gauge handles a wide variety of moderate-weight products that outgrow standard bags but don’t require heavy-duty film.

When Is Medium Duty the Right Choice Over Standard or Heavy Duty?

The 1.9 mil KF0405MD fills the gap between 1.4 mil standard bags and 2.8 mil heavy-duty options. It’s the right choice when products are mid-weight, have mild edges, or require slightly more containment than standard film provides — without incurring the cost premium of heavy-duty gauge. Most toy components, hardware accessories, and packaged kits fall into this category.

Key Specifications at a Glance

Width: 4 inches | Length: 5 inches | Gauge: 1.9 mil | Material: LDPE | Style: Kwik-Fill® pre-opened on roll | Duty: Medium Duty | SKU: KF0405MD

Toy and Hobby Manufacturers Use KF0405MD for Small Parts Kit Auto-Bagging

Toy manufacturers and hobby kit assemblers rely on the KF0405MD to auto-bag small parts sets, model kit accessories, and game piece assortments. The 4×5 format fits standard accessory pouches, while the 1.9 mil LDPE provides enough durability to contain light plastic pieces, rubber parts, and multi-component hobby sets without excess material cost. Auto-bagging lines maintain consistent fill accuracy and seal integrity across high-volume hobby kit production runs.

Is LDPE Film Compatible with All Kwik-Fill Auto-Bagging Machines?

LDPE medium-duty film feeds consistently on most Kwik-Fill®-compatible automatic bagging machines. The softer, slightly stretchier nature of LDPE compared to LLDPE means film tension settings may need minor adjustment on some machines. Most production auto-baggers accommodate both materials without significant modification. Consult your equipment documentation or contact NFCbags.com for machine-specific guidance.

How to Purchase KF0405MD in Volume

KF0405MD is available in case quantities for mid-volume and high-volume operations. Visit NFCbags.com or contact our team to discuss bulk pricing, case roll counts, and delivery lead times. Consistent stock levels reduce line downtime and support steady production scheduling.