What is CNC Spring Machine?
A CNC spring machine, sometimes also known as cnc spring coiling machine, is a high-end piece of wire bending equipment that utilizes computer numerical control (CNC) systems, servo motors, and precision mechanical transmission to achieve automated spring production. It is not a single device but rather a mechatronic system integrating precision mechanics, electrical automation, servo control technology, and computer software engineering. Its essence lies in precisely controlling the coordinated movement of multiple servo axes through pre-programmed code, driving mechanisms such as wire feeding, coiling, forming, and cutting. This enables the efficient and accurate production of springs and wire-formed products in various specifications and shapes.
Product Recommendations
MEU T offers a full lineup of CNC spring machines, including spring coiling machines, multi-axis spring forming machines, and advanced camless spring systems—covering applications from simple compression springs to complex 3D wire forms.
5-Axis CNC Spring Forming Machine
This is a 5-axis CNC spring forming machine designed for producing a wide range of complex springs and wire-formed parts with good precision and ease of operation. It features a10.4″computer CNC system with Chinese/English interface, automatic detection/stop for defective parts, and real-time parameter adjustment.
Important Parameters (by model):
| Recurso | MCNC-8525 | MCNC-8545 | MCNC-8550 | MCNC-8560 |
| Wire Diameter (mm) | φ0.3–φ2.5 | φ1.5–φ4.5 | φ2.0–φ5.0 | φ2.5–φ6.0 |
| Total Power (kW) | 7.5 | 16.6 | 20 | 20 |
| Wire Feed Wheels | 2 pares | 3 pares | 3 pares | 4 pares |
| Machine Size (mm) | 1700×1500×1650 | 1750×1900×2180 | 1900×2000×2200 | 2700×2200×2400 |
| Weight (kg) | 1300 | 2500 | 3000 | 6000 |
| Servo motor power varies per axis (feeding, rotary, core, spinner, camshaft) across models. | ||||
12-Axis CNC Camless Spring Machine
A high-speed, high-precision camless spring forming machine suitable for a wide variety of spring types (torsion, straight, pagoda, rectangle, swirl, etc.). It uses a CNC system and multiple servo motors to control independent axes.
Important Parameters (by model):
| Recurso | MCNC-1225 | MCNC-1230 | MCNC-1245 | MCNC-1250 | MCNC-1260 | MCNC-1280 |
| Wire Diameter (mm) | φ0.5–φ2.5 | φ1.2–φ3.0 | φ1.5–φ4.5 | φ2.0–φ5.0 | φ2.8–φ6.0 | φ3.0–φ8.0 |
| Total Power (kW) | 14.8 | 17.1 | 25.8 | 33 | 41.8 | 61.6 |
| Wire Feed Wheels | 3 pares | 3 pares | 3 pares | 3 pares | 4 pares | 4 pares |
| Machine Size (mm) | 1550×1250×1770 | 1650×1350×1880 | 2200×1760×2100 | 2300×1980×2250 | 3150×2250×2600 | 3150×2550×2600 |
| Weight (kg) | 1400 | 2000 | 3500 | 4500 | 6500 | 6800 |
| Each model uses 12 servo motors controlling wire feed, rotary, mandrel, curved shaft, and knife rest axes. | ||||||
6-Axis CNC Spring Coiling Machine
A versatile 6-axis CNC coiling machine designed mainly for spring coiling operations. It provides automatic programming, dual-direction winding, and both straight and twist cutting capabilities.
Important Parameters (by model):
| Recurso | MCNC-8620 | MCNC-8635 | MCNC-8645 | MCNC-8660 | MCNC-8680 | MCNC-86100 |
| Wire Diameter (mm) | φ0.4–φ2.0 | φ0.6–φ2.0 | φ1.5–φ4.5 | φ2.0–φ6.0 | φ3.0–φ8.0 | φ3.5–φ10 |
| Max Outside Dia (Spring) (mm) | φ30 | φ50 | φ65 | φ90 | φ120 | φ150 |
| Wire Feed Speed (m/min) | 110 | 75 | 75 | 75 | 75 | 75 |
| Wire Feed Wheels | 2 pares | 2 pares | 3 pares | 3 pares | 4 pares | 5 pares |
| Machine Size (mm) | 1300×800×1800 | 1500×1000×1800 | 1700×1200×1900 | 2100×1250×2100 | 2500×1450×2200 | 3000×1550×2200 |
| Weight (kg) | 400 | 800 | 1450 | 3000 | 4100 | 5800 |
| Servo motor power differs by model axis (OD, blade, pitch, wire feed). | ||||||
Features of CNC Spring Machine
CNC spring machines exhibit the following core characteristics:
High Precision and Consistency: The control system regulates servo motor movements with micron-level accuracy, ensuring exceptional consistency in critical parameters like dimensions, angles, and coil counts for every product. Modern CNC spring machines typically achieve processing precision within ±0.01mm.
High Efficiency and Automation: The entire process—from wire feeding to finished product output—is fully automated without manual intervention, significantly boosting production efficiency and reducing reliance on operator skill levels.
High Flexibility and Rapid Changeover: When switching products, operators only need to call up or program new sequences in the control system to swiftly adjust machine parameters for producing different spring types and specifications. This offers particular advantages for multi-variety, small-batch production models.
Complex Shape Processing Capability: Especially in camless multi-axis spring machines, each forming arm is controlled by an independent servo motor. This enables intricate three-dimensional bending and forming, producing irregular springs and wire-formed components that are difficult to manufacture with traditional equipment.
How Does CNC Spring Machine Work?
The precision operation of a CNC spring machine relies on the coordinated functioning of multiple internal subsystems. Its workflow can be broken down into the following key steps:
Step 1: Command Input
The control system serves as the “brain” of the entire machine, typically comprising an industrial computer, CNC controller, servo drives, and a touchscreen human-machine interface (HMI). Operators input spring parameters via the HMI or directly import CAD drawings. The control system converts these commands into pulse signals that govern the movement of each servo motor. Throughout processing, the system continuously monitors the position, speed, and load of each axis, forming a closed-loop control system to ensure precise execution of instructions.
Step 2: Feeding
The feeding system employs one or more pairs of high-precision feed wheels to deliver metal wire coiled on a reel into the machine’s forming zone at a programmed speed and length, ensuring stable and precise feeding. The wire feed spindle is typically driven by an independent servo motor, whose precision directly determines the material length and final dimensions of the spring.
Step 3: Straightening
Wire unwound from the reel often carries residual stress and curvature. The straightening system consists of multiple sets of adjustable straightening wheels. As the wire passes through, it undergoes repeated forward and reverse bending, eliminating internal stress and achieving straightness. This prepares the wire for subsequent precise forming operations.
Step 4: Forming
Upon entering the forming zone, the wire undergoes plastic deformation through multiple coordinated mechanisms.
- Coiling and Diameter-Changing Mechanism: For compression or tension springs, wire is coiled into a helical shape primarily through the relative motion of guide plates (commonly called “pen tips”) and coiling blades, in conjunction with a diameter-changing mechanism (a servo-controlled shaft regulating spring outer diameter). Programmed control of the diameter-changing shaft enables production of springs with various profiles, including straight barrel, conical, drum-shaped, and concave.
- Pitch Control Mechanism: The pitch cutter (or pitch tool) is controlled by a servo shaft, where its extension determines the distance between adjacent coils—the pitch. Precise pitch shaft control enables production of springs with constant or variable pitch, and facilitates end-coil formation.
- Forming Arms/Slides (for camless machines): For torsion springs and special-shaped springs, the forming system comprises multiple (e.g., 8, 10, or more) forming arms or slides driven by independent servo motors. These arms can mount various tools to bend, fold, twist, and coil the wire from different angles and directions. Combined into highly complex sequences of motions, they shape springs into any desired geometric design.
Step 5: Cutting
Once the spring reaches its preset length or completes all forming operations, the cutting system activates. Driven by a servo axis or pneumatic/hydraulic cylinder, the cutting blade swiftly severs the formed part from the remaining wire. The quality of this cut directly impacts the spring’s end port flatness and overall appearance.
Application Fields
Springs and wire-formed components produced by CNC spring machines serve as fundamental functional parts. Their applications permeate every corner of our lives, acting as the “unsung heroes” driving technological advancement across numerous industries.
Automotive Manufacturing: This represents one of the largest application markets for springs. CNC spring machines are extensively used to produce suspension springs and stabilizer bars for automotive suspension systems, valve springs for engine systems, diaphragm springs for clutches, brake springs for braking systems, as well as various precision small springs for seat adjustment systems, door locks, seat belts, and other components.
Household Goods: Independent pocket springs and Bonnell springs in mattresses, serpentine springs and torsion springs in sofas and recliners—all are produced by large-scale or specialized CNC spring machines.
Engineering Machinery & General Equipment: Springs are indispensable in nearly all mechanical equipment, serving multiple functions including cushioning, vibration damping, energy storage, connection, and reset. CNC spring machines provide standardized or customized elastic solutions for these devices.
About MYT – Your Reliable CNC Spring Machine Manufacturer
MEU T is a professional manufacturer offering CNC spring machines and intelligent wire forming solutions. With years of experience in spring machinery design, manufacturing, and application engineering, MYT provides a complete range of CNC spring equipment—from entry-level coiling machines to high-end multi-axis camless spring systems.
Explore MYT CNC Spring Machines:
- 5-Axis CNC Spring Forming Machines
- 6-Axis CNC Spring Coiling Machines
- 12-Axis CNC Camless Spring Machines
Contact MYT today to request detailed specifications, pricing, or a customized solution tailored to your spring production needs. Let MYT help you transform precision engineering into real manufacturing advantages.
