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The YouYi Automation Products Center
All of YouYi's press automation solutions in one place.
Decoiler/Uncoiler
The hydraulic automatic decoiler is equipped with hydraulic expansion, allowing the material's inner diameter to expand and contract automatically, saving time and effort.
Material width (mm): 100-1600
Material thickness (mm): 0-6.0
Product Characteristics
The MT Series Heavy Duty Hydraulic Decoiler Machine is designed for handling large and heavy metal coils in automated stamping and coil processing lines. It uses a hydraulic expansion mandrel to securely clamp the coil and maintain stable unwinding during continuous production.
Depending on the model, the MT Series supports material widths from 100 to 1600 mm, material thicknesses up to 6.0 mm, and coil weights from 2,500 to 20,000 kg. The machine can be configured for carbon steel, stainless steel, galvanized steel, aluminum, copper, and other coil materials according to the material and production requirements.
The hydraulic decoiler combines hydraulic expansion, automatic pressure holding, braking protection, vector-controlled drive, and automatic speed adjustment. These functions help maintain stable coil unwinding while reducing manual intervention during continuous stamping production.
The MT Series is suitable for automotive stamping, 3C electronics, new energy components, hardware manufacturing, steel furniture, and other metal processing applications.
The main shaft uses a hydraulic expansion mandrel to securely clamp the inner diameter of the metal coil. Compared with manual mechanical expansion, the hydraulic system provides controlled expansion and strong clamping force for heavy coils.
The mandrel can be configured according to the coil inner diameter and load requirements, helping maintain stable coil positioning during continuous unwinding.
During continuous production, coil tension and diameter change as the material is unwound.
The automatic pressure-holding system maintains the required clamping force on the coil and helps reduce the risk of coil loosening during operation.
This is particularly useful when processing heavier coils where stable coil positioning is important for downstream feeding equipment.
The MT Series is equipped with automatic braking and hydraulic protection functions to improve operating safety.
The main functions include:
Automatic braking: Helps control coil rotation and reduce the risk caused by coil inertia.
Hydraulic cylinder limit protection: Helps prevent excessive movement of the rack release mechanism and protects the hydraulic cylinder.
Controlled coil unwinding: Helps maintain stable material supply to the downstream straightener and feeder.
These protection functions also help reduce unnecessary mechanical stress during operation.
The four-blade mandrel structure is designed to match the coil's inner diameter and provide stable radial support.
The mandrel surfaces can be hard chrome-plated to improve wear resistance and reduce friction during expansion and contraction.
The design provides:
Smooth hydraulic expansion and contraction
Stable coil support
Improved wear resistance
Reduced risk of surface scratching during coil loading and unloading
The actual mandrel configuration should be selected according to the coil material, inner diameter, weight, and production requirements.
The A-frame structure adopts a quick-change design to simplify maintenance and component replacement.
The structure allows the mandrel assembly to be removed and replaced efficiently while maintaining the positioning of the main supporting components.
This design is useful for production environments where equipment maintenance and component replacement need to be completed with minimal downtime.
The main motor uses a geared motor with vector frequency control. A sprocket transmission system drives the decoiler mandrel to rotate and unwind the coil.
The vector-controlled drive provides:
Smooth speed adjustment
Stable coil rotation
Controlled acceleration and deceleration
Reduced mechanical impact during operation
Improved energy efficiency compared with uncontrolled drive operation
The drive system can work together with downstream feeding equipment to maintain a continuous material supply.
The MT Series is built for heavy coil handling and continuous industrial operation.
The main structure uses:
Welded steel sections
A3 steel plates
#45 forged bearing blocks
Stress-relieved structural components
Key components are annealed to reduce internal stress before precision machining.
Precision boring is applied to critical bearing and mounting positions to improve concentricity and reduce radial runout during coil rotation.
The heavy-duty structure provides the rigidity required for handling coils weighing up to 20,000 kg, depending on the model configuration.
As the outer diameter of the coil decreases during unwinding, the required rotational speed of the mandrel changes.
The control system adjusts the decoiler rotation speed according to the changing coil diameter and downstream feeding requirements.
This enables:
Automatic acceleration and deceleration
More consistent material supply
Reduced mechanical impact
Lower operating stress
More stable continuous production
In this production line, the MT Series Hydraulic Decoiler is paired with a precision coil leveler and servo roll feeder to form a fully automated coil feeding system for a 3C electronics stamping application.
The hydraulic decoiler ensures smooth and stable coil unwinding, while the straightener and servo feeder maintain excellent flatness and feeding accuracy. This fully automated setup significantly improves production efficiency and minimizes manual intervention.
This combination significantly enhances production efficiency, product consistency, and automation level, especially for 3C electronics precision stamping applications.
A hydraulic decoiler is a coil handling machine that uses a hydraulic expansion mandrel to securely hold and unwind metal coils. It is commonly used in stamping, roll forming, and continuous coil processing lines.
The MT Series supports coil weights from approximately 2,500 kg to 20,000 kg, depending on the model and configuration.
The exact maximum coil weight should be selected according to the machine model, coil dimensions, material characteristics, and production requirements.
The MT Series can be configured for materials such as:
Carbon steel
Stainless steel
Galvanized steel
Aluminum
Copper
Material thickness, width, coil weight, and inner/outer diameter should be confirmed before selecting the machine configuration.
A hydraulic decoiler uses hydraulic expansion to clamp the coil, providing strong and controlled radial support. It is particularly suitable for heavier coils and applications requiring more convenient coil loading and clamping.
A mechanical decoiler generally uses a manually or mechanically adjusted expansion mechanism and may be suitable for lighter coil handling applications.
Yes. The MT Series can be integrated with a precision straightener and servo feeder to form an automated coil feeding line.
The typical configuration is:
Hydraulic Decoiler → Straightener → Servo Feeder → Stamping Press
The final configuration depends on material thickness, width, coil weight, feeding length, press speed, and production requirements.
The main factors include:
Material width
Material thickness
Coil inner diameter
Coil outer diameter
Maximum coil weight
Required unwinding speed
Material type
Downstream straightener and feeder configuration
For heavy coils, the maximum coil weight and mandrel load capacity should be considered first.
Technical Parameters
| Modle | MT-700 | MT-800 | MT-1000 | MT-1300 | MT-1600 |
| Width (mm) | 700 | 800 | 1000 | 1300 | 1600 |
| Thickness (mm) | 0-6.0 | ||||
| Coil.I.Dia (mm) | φ450 ～ 520 | ||||
| Coil.O.Dia(mm) | φ1200 | φ1200 | φ1200 | φ1200 | φ1200 |
| Coil Weight（kg） | 2500 ～ 20000 | 3000 ～ 20000 | 3000 ～ 20000 | 3000 ～ 20000 | 3000 ～ 20000 |
| Speed m/min | 15 | ||||
| Expansion | Hydraulic | ||||
Application
1600 Large-Scale New Energy Lithium Battery Aluminum Casing Blanking Dedicated Automated Stamping Line
Thick-Sheet 3-in-1 Decoiler, Leveler & Feeder System for Automotive Stamping Applications
Customized Dual-Uncoiler 3-in-1 Feeding Line for Automated Stamping of Smart Furniture Hardware Components
2-in-1 Decoiler & Leveling Machines with Servo Feeders: Enhancing Precision in 3C Industry Automation
Ready to streamline your production with reliable stamping automation solutions that boost efficiency, reduce downtime!
Related Products
CR Series Light Duty Decoiler / Uncoiler for Thin Metal Coil Feeding
The CR Series Light Duty Decoiler is built for uncoiling thin and soft metal coils in compact stamping lines. It features a simple structure, reliable performance, and optional motorized drive.
MT Series Metal Coil Automatic Decoiler/Uncoiler Machine
Automatic Decoiler is designed for uncoiling various metal coils. It supports hydraulic expansion and optional coil car, and works with straighteners and servo feeders for automated coil feeding in stamping lines.
MT Series Heavy Duty Hydraulic Decoiler/Uncoiler with Automatic Coil Loading Carriage
Automatic MT Series hydraulic decoiler for heavy coils. Material width 100–1600 mm, thickness 0–6.0 mm, hydraulic expansion & coil loading carriage — ideal for roll forming and stamping lines. Inquire now.
KHT Series Dual Station Decoiler/Uncoiler
KHT Series dual-station decoiler for high-speed punch presses. Fast coil changeover, optional hydraulic expansion & motorized drive—ideal for stator/rotor and hinge stamping lines. Request datasheet & quote.
FAQ
Q: How do I determine the right feeder size for my production line?
A: The feeder size depends on the material width, thickness, and feeding step distance required by your stamping press. Choosing the correct specifications ensures smooth operation and prevents feeding errors or misalignment.
Q: What factors should I consider when choosing a servo feeder machine?
A: When selecting a servo feeder, key factors include feeding accuracy (±0.05mm or better), maximum feeding speed (e.g., 20m/min), material compatibility (stainless steel, aluminum, etc.), load capacity, and control system (PLC or touchscreen). Ensure the machine matches your stamping process requirements.
Q: How do I choose the right decoiler, straightener and feeder?
A: Select based on material type, width, thickness, coil weight, and required speed. Match decoiler capacity to coil size, choose a straightener for material strength, and a feeder that meets feed length and precision. Ensure compatibility with your press and automation level.
Q: Coil feeder vs servo feeder: what’s the difference?
A: A coil feeder is a broader system for continuous coil feeding, often integrated with decoiler and straightener. A servo feeder uses servo motors for precise, programmable feeding, ideal for short pitches and high accuracy applications.
Q: How to choose decoiler capacity?
A: Select a decoiler rated 10–20% above your maximum coil weight. Confirm inner diameter (I.D.) compatibility and outer diameter limits. Adjustable mandrels are recommended if you run multiple coil sizes.
Q: What feed precision can I expect?
A: Servo feeders typically achieve ±0.01–0.05 mm, with high-end models reaching ±0.005 mm. Mechanical feeders usually provide ±0.02–0.1 mm. Actual accuracy depends on material properties and straightening quality.
Q: How does material affect machine selection?
A: High-strength materials need stronger straightening and drive systems. Thin materials require low-pressure handling. Soft materials like aluminum need anti-scratch solutions.
Q: What affects feeding accuracy most?
A: Key factors include feeder precision, servo tuning, straightener setup, material quality, and press stability. Poor setup or worn dies can reduce accuracy.
Q: What spare parts should be prepared?
A: Common spares include bearings, belts, sensors, seals, guide blocks, and lubrication parts. Keeping key components reduces downtime and improves maintenance efficiency.
Q: Can feeders be retrofitted to existing presses?
A: Yes, most systems support retrofitting. Check press dimensions, feed height, control compatibility, and safety requirements before installation.
Q: How long does it take to receive the feeder machine after placing an order?
A: Lead time for delivery typically ranges from 4 to 8 weeks depending on customization, production schedules, and shipping location. Once your order is confirmed, we will provide a more precise delivery estimate.
Q: What are your payment terms?
A: We accepts T/T payment, 30% deposit and 70% balance before shipping
Q: How often should I perform maintenance on my servo feeder machine?
A: Routine maintenance should be conducted weekly for basic cleaning and lubrication, while a more thorough inspection should be done monthly to check for wear on rollers, belts, and electrical components. A full servicing is recommended every 6-12 months depending on usage intensity.
Q: What are the most common issues with feeder machines, and how can I troubleshoot them?
A: Common issues include misalignment, inconsistent feeding accuracy, or motor failure. Check for loose bolts, dirt buildup, or software calibration errors. If problems persist, refer to the user manual or contact technical support.
Q: Do you provide on-site repair services if my machine breaks down?
A: Yes, we offer on-site repair services for major issues, along with remote troubleshooting support for minor problems. For urgent cases, we can dispatch a technician within 24-48 hours, depending on your location.
Q: What is the maintenance cycle?
A: Daily cleaning and inspection; weekly check belts, air lines; monthly inspect bearings and guides; yearly replace worn parts. Adjust frequency based on operating hours and workload.
Q: What's the package of your coil feeding machines?
A: For the coil feeding equipment that go LCL shipping, We will use plastic films wrap on the equiment, and then fix it into a wooden box.
For the large coil lines that go FCL shipment, We will fix each part with ropes on the shipping container and then wrapped them with plastic films.
Q: What is the typical lead time?
A: Standard machines usually take 4–8 weeks. Customized systems or full production lines may require 10–20+ weeks depending on complexity and production schedule.
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