products details

Home > Products >

Customized Bonnell Coil Spring Unit with High Carbon Steel Wire, 4-8 Turns, and 60-90mm Spring Height for Mattress

Name: Customized Bonnell Coil Spring Unit with High Carbon Steel Wire, 4-8 Turns, and 60-90mm Spring Height for Mattress
Brand: Foshan Gaoming Hecheng Yirilom Household Factory
SKU: BS-058
Price: 23.00 USD
Availability: InStock

Brand Name:	Yirilom
Model Number:	BS-058
MOQ:	100PCS
Price:	USD 18~29/PCS
Packaging Details:	Compressed Rolled Packing:10-20PCS/Pack
Payment Terms:	T/T,Western Union,MoneyGram

Detail Information

Product Description

Detail Information

Place of Origin:

China

Certification:

SGS/ISO9001

Name Of Product:

Mattress Bonnell Spring

Turns:

4-8

Spring Height:

60-90mm

Thickness:

8-12 Inches

Warranty:

10 Years

Name Of Spring:

Mattress Bonnell Spring

Breathability:

High

Support System:

Coil

Edge Support:

Yes

Sprung Name:

Mattress Bonnell Spring

Supply Ability:

8000000PCS Per Month

Highlight:

Steel Bonnel Coil Spring Unit

Customized Bonnell Coil Spring Unit

Mattress Bonnell Coil Spring Unit

Product Description

Customized Bonnell Coil Spring Unit Steel Bonnel Spring For Mattress

Bonnell coil spring units are manufactured from high-carbon steel wire, offering excellent tensile strength and hardness for durable mattress support systems.

Product Specifications

Product Name	Mattress Inner Spring Unit
Material	High Carbon Steel Wire
Wire Diameter	1.8mm-2.4mm
Cover Material	Bonnell Spring
Topper Material	Bonnell Spring
Height	7-22cm
Turns	4-7 Turns
Coils Count	According to client requirements
MOQ	100PCS
Brand	Yirilom
Size	Single/Double/Queen/King/Customized
OEM & ODM	Acceptable
Packing	Flat Compressed With Wooden
Application	For Mattress Factory

What is a Bonnell Spring Unit?

Bonnell coils represent the oldest and most traditional type of mattress spring system. These hourglass-shaped, knotted wire springs are connected in a continuous grid by helical wires (strings of smaller coils). Known for their firm support and cost-effectiveness, Bonnell springs remain a popular choice for innerspring mattress construction.

Key Customization Options

Wire Specifications

Wire Gauge (Thickness): The most critical factor determining 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: High-carbon steel for strength and resilience, with optional powder coating or electrogalvanizing for rust prevention

Spring Specifications

Spring Height: Individual coil height
- Common heights: 5", 6", 7", 8" (10-inch less common but available)
- Taller springs provide softer feel and suit thicker mattresses
Coil Count: Total number of springs in the unit
- Queen size (60"x80") typically contains 250-350 Bonnell coils
- Higher coil count offers more precise support and firmer feel
Tempering (Heat Treatment): Standard process that increases durability and prevents sagging