Fully automated machine for producing double-cone Bonnell spring units used in mattresses and sofas. Integrates wire coiling, knotting, heat treatment, alignment, and unit assembly into one streamlined process—ensuring high precision, stable output, and minimal manual intervention. Ideal for manufacturers seeking efficiency, flexibility, and consistent spring quality.
The Automatic Bonnell Spring Coiling & Assembly Machine is designed for the fully automated production of double-cone Bonnell spring units used in mattresses and sofas. From raw wire feeding to complete spring unit formation, the entire process is seamlessly automated—eliminating the need for manual spring handling or discharge.
The production begins with wire being precisely coiled into springs by the coiling head, followed by knotting at both ends of each spring. The springs then undergo heat treatment to ensure durability and elasticity. After that, they are transferred onto a conveyor where they are neatly arranged in rows. Once aligned, the system automatically pushes the spring rows forward, inserting steel wire through the aligned springs to connect them into a unified Bonnell spring unit.
Engineered with a simplified mechanical structure, the spring transfer unit uses servo motors to accurately position and secure both sides of each spring. This results in high stability, a low failure rate, and consistent performance. The entire system operates with high-precision manufacturing, supported by advanced servo technology that ensures uniform quality at speeds of up to 100 spring pairs per minute.
With CNC-adjustable parameters, tight alignment tolerances of less than 1 cm, a customizable waist diameter, and a high-capacity 1000 kg wire supply, the machine is built for reliable and continuous production. Six synchronized manipulators and enhanced three-splint adjustments maximize operational efficiency while minimizing material waste.
This all-in-one solution is ideal for mattress, sofa, and furniture manufacturers seeking to improve production quality, speed, and automation.
Remote Wireless Controller
Allows remote control of key functions including upper and lower knotting, jog operation, start/stop, reverse knotting, and reset.
Technical Specification |
|||
|---|---|---|---|
|
Model |
JK-BSA01 |
Spring Type |
Bonnell Spring |
|
Production Capacity |
90 springs/minute |
Daily Output (8 hours) |
Approx. 48,000 springs |
|
Maximum Bonnell Spring Unit Width |
2000 mm |
Bonnell Spring Height |
100 mm - 200 mm |
|
Control System |
Touchscreen + PLC (multilingual interface available) |
CE Certificate |
Yes |
|
Bonnell Spring Diameter |
Ø65 mm – Ø95 mm |
Bonnell Spring Turns |
4 – 7 turns |
|
Helical Wire Diameter |
Ø1.4 mm – Ø1.6 mm |
Wire Diameter |
Ø2.0 mm – Ø2.4 mm |
|
Feeder Load Capacity |
1000 kg |
Voltage |
220V/380V, 3-phase, 50–60 Hz (Customizable) |
|
Total Power |
25KW |
Machine Dimensions (L×W×H) |
5500 mm × 5000 mm × 2000 mm |
|
Net Weight |
4800 kg |
Machine Operation Mode |
Fully automatic |
KIMKOO is a professional brand specializing in the development and manufacturing of mattress machinery. We focus on delivering high-efficiency, intelligent automation solutions for the mattress industry. Our product range covers pocket spring machines, mattress packaging machines, tape edge machines, sofa, foam & mattress compression packing machines, mattress sealing machines, pillow packaging machines, bonnell spring machines, and foam cutting machines — all designed for high performance, long-term reliability, and maximum production value.
When you plan to ship goods from our factory to your location, there are a few important aspects to consider in terms of transport options, delivery times, costs, and payment methods. Here is an overview of the shipping process:
Our nearest export port is Shenzhen Port. Depending on the destination port, the shipping duration can vary. You can inquire with your freight forwarder to determine the exact transit time and costs from Shenzhen to your port. For general reference, shipping by sea typically takes anywhere from 10 to 45 days, depending on the distance, shipping line, and specific routes. We also have established partnerships with reliable freight forwarders, but you're welcome to work with your own agent if you have preferred contacts.
Sea freight is the primary shipping method we use because it is the most cost-effective and reliable option for transporting large or bulk machinery. No matter which country you are in, sea freight can usually reach a nearby port—even if the local sea transport infrastructure is limited or less efficient.
Once the shipment arrives at your destination port, the shipping line will notify you to pick it up. You can simply ask your local forwarder or customs broker to handle the port clearance and truck the machinery back to your factory.
For customers within China, we typically ship machinery by land freight, including heavy trucks, semi-trailers, or railway transport.
For overseas customers, land freight is only possible if your country is physically connected to mainland China. While trucks and semi-trailers can generally transport machinery only up to the border, the key factor for cross-border delivery is whether a railway route exists to your country, or at least to a nearby transfer point where the cargo can then continue by truck into your region.
Air freight is generally not suitable for our machinery because the equipment is too large to fit into standard cargo planes. Even if the size allows, the shipping cost would be extremely high and impractical.
Instead, we use air freight mainly for shipping documents (such as B/L copies, invoices, packing lists) or for sending small spare parts, accessories, or consumables that customers may need urgently.
We offer several flexible payment methods to suit your business needs:
KIMKOO offer multiple types of pocket spring assembly machines — some can connect with 2 coilers, and others up to 3. Freely combine with pocket spring coiling machines of different speeds. Easily set up a 1-to-1, 1-to-2, or 1-to-3 production line to match your capacity. Customize your setup today!
Technical Support
Services
Custom Development Support
FAQ
