Customized Bonnell Coil Spring Unit Steel Bonnel Spring For Mattress

Customized Bonnell Coil Spring Unit Steel Bonnel Spring For Mattress

Product Descriptions

What is a Bonnell Spring Unit?

Bonnell coils are the oldest and most traditional type of mattress spring. They are an hourglass-shaped,

knotted, wire spring connected in a continuous grid by helical wires (strings of smaller coils). They are

known for being firm, supportive, and the most cost-effective innerspring option.

Key Customization Options for Bonnell Spring Units

When you order a customized Bonnell unit, you are specifying the following parameters:

1. Wire Specifications

• Wire Gauge (Thickness): This is the most critical factor for firmness.

  • Lower Gauge Number = Thicker Wire = Firmer Feel (e.g., 12.5 gauge)

  • Higher Gauge Number = Thinner Wire = Softer Feel (e.g., 15 gauge)

  • Common Range: 12.5 ga (~1.7mm) to 15 ga (~1.4mm).

• Wire Material: Typically high-carbon steel for strength and resilience. Can be finished with powder

• coating or electrogalvanizing to prevent rust.

2. Spring Specifications

• Spring Height: The height of an individual coil.

  • Common Heights: 5", 6", 7", 8". A 10-inch Bonnell coil is less common but possible.

  • Taller springs can feel softer and are used in thicker mattresses.

• Coil Count: The total number of springs in the unit.

  • A Queen size (60"x80") typically has between 250 - 350 Bonnell coils.

  • Higher coil count generally provides more precise support and a firmer feel, but the wire gauge is a

  • more significant factor.

• Tempering (Heat Treatment): Springs can be heat-tempered to increase durability and prevent sagging.

• This is a standard but essential process for quality.

About Us

Founded in 2010,Foshan Gaoming Yirilom Household Co.,Ltd is a professional manufacturer who specialized in furniture accessories,including varieties of sofa pocket spring,mattress pocket springs,pillow pocket springs,mattress,zigzag spring and other furniture accessories.

Our factory is located in Foshan China,covering an area of 5000 square meters and more than 50 technicians with over 13 years of experience in furniture accessories,meanwhile our products are managed in strict accordance with ISO9001 Quality Management System and all the items pass SGS certification.

Thanks to our 8 sets of advanced spring production line,we can product over 8000000pcs pocket spring and furniture accessories per month,so our urgent delivery date can be handled in 7 days.Keeping a good cooperation with many famous furniture brand like UK famous furniture brand HALO and Europe famous furniture brand PGS.Meanwhile,we have provided one-step OEM&ODM service to our partmers with low MOQ per design.

We are confident to offer a wide range of products that will satisfy your requirements.If you have special size & color & materials and other requirement,please do not hesitate to contact us,we can provide the customization and develop the markets especially for you.We will be your sincere partner in China.