What baling wire is best for mill-size bales?

There isn’t a stand-alone “best” wire for mill-size bales. Most common typesof baling wire are sufficient. Match the baling wire to your baling machine, materials, and storage conditions.

What is a mill-size bale?

A mill-size bale is a standardized, compact bale commonly accepted at recycling plants. Mill-sized bales are 60 inches long, 42 inches wide, and 30 inches high.

In the recycling industry, materials must be compacted into standardized bales for easier processing, transportation, and storage. While recycling facilities generally accept all bale sizes, they often pay more for mill-size bales since other bale sizes necessitate rebaling before processing.

How to choose wire for mill-size bales

To choose baling wire for your mill-size bales, follow these steps.

Step 1: Get wire that's compatible with your baler

Choose the right baling wire for your machine. Most importantly, your baler must be designed to produce mill-size bales. Keep this in mind when purchasing a baler machine.

Carefully read your baler’s manual and consult with the manufacturer to understand which gauges and wire types are compatible with your machine. Check out our articles on baler compatibility for more information:


Feel free to contact us to discuss your options.

Step 2: Choose wire that matches your materials

Baling wire should be selected based on its purpose. Some recyclables, such as cardboard, e-waste, and rubber tires can expand, condense, or be extremely heavy. If you want to prioritize flexibility, choose a wire with high elongation, such as black annealed wire. If strength is what you're after, our hi-tensile galvanized wire offers exceptional tensile strength and load strength to handle heavy-duty bales.

Check out our pages on the best wire gauge for different recyclables for more information:

Step 3: Pick baling wire that will last

Get baling wire that will maintain integrity for the bale’s storage duration. For example, uncoated baling wire will rust if exposed to corrosive, humid, or wet conditions.

Wire that has undergone the annealing process offers mildly enhanced corrosion resistance, but even annealed wire will rust since its waxy coating isn’t meant for long-term protection.

Mill-size bales that will be stored outside for extended periods should be baled with galvanized wire. The galvanizing process coats the wire in a protective layer of zinc that deters rust and corrosion. The zinc layer’s thickness depends on the wire's galvanization class.

While we offer both Class 1 and Class 3 galvanization, Class 3 galvanized wire features 0.80 ounces of zinc per square foot, tripling the thickness of its coat and making it the best choice for bales that will be stored outdoors.

If you are sending your bales to a recycling facility, they may also have specific wire requirements.

Product recommendations for mill-size bales

Here are some of our most popular types of wire for mill-size bales.

Black annealed wire

Black annealed wire offers tensile strength, superior elongation, and smooth feeding into auto-tie balers and other waste balers. This wire is optimal for waste streams that don’t require long-term storage, such as recycling office paper, cardboard boxes,magazines, and plastics.

Hi-tensile galvanized wire

High-tensile wire is perfect for heavier bales of recyclable waste, such as copper, tires, and e-waste. It is strong, reliable, and galvanized for long-term rust resistance.

Single loop bale ties

Annealed single loop bale ties are great for manual vertical mill-size balers. Single loop configurations are easy to use, and annealed wire offers an elasticity perfect for baling expansive materials.

Baling wire products we offer

Baling Wire Direct sells the following high-quality baling wire products.

Baling Wire FAQ

Didn't find your answer?

Our team is just an email away and ready to answer your questions