The Double-Head 4 Ton Uncoiler is a high-efficiency decoiling machine designed for continuous production. With its double-mandrel structure, it allows seamless coil changeover without stopping the line, making it ideal for ERW tube mills, roll forming lines, and slitting lines.
✅ Key Features
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Dual-mandrel design for non-stop coil changeover
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Hydraulic expansion with adjustable coil centering
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Compatible with PLC & auto-shear welding systems
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Ideal for ERW tube mills, slitting lines, and forming lines
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2. Technical Parameters
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Parameter
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Value
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Structure Type
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Double-Head
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Coil Weight Capacity
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4 Tons per Mandrel
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Coil Width Range
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100–600 mm
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Coil ID Range
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Φ450–Φ508 mm
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Coil OD Max
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≤ Φ2000 mm
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Expansion Type
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ไฮดรอลิก
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Motor Power
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3 kW × 2
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Control Mode
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Manual / Optional PLC
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Material Type
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Carbon Steel, Galvanized, SS
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Coil Change Time
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≤ 1 min
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- 3. Workflow Overview
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Load coils onto both mandrels
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Expand mandrel hydraulically to secure the coil
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Feed strip into the production line
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Prepare the next coil on the idle side
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Cut and weld to new coil for continuous operation
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🌍 Global Success Stories
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🇻🇳 Vietnam: 24-hour ERW pipe mill with auto switch system
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🇷🇺 Russia: Cold-roll Z-section line in sub-zero conditions
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🇲🇾 Malaysia: High-speed slitting line with dual decoilers
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📦 Packing & Shipping
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Anti-rust coated, film wrapped, secured with steel frame
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Available for sea/land transport
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Delivered within 30–35 working days
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Includes manuals, spare parts & tool kits
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🇻🇳 Case 1: Vietnam ERW Tube Mill
To improve production efficiency, the client introduced our Double-Head 4 Ton Uncoiler with a PLC automatic control system.
The coil loading and changeover time was reduced from 3 minutes to less than 1 minute, effectively cutting downtime caused by coil replacement by over 40%.
"This double-head uncoiler truly enabled non-stop coil change, significantly boosting our production capacity. Very stable performance." — Technical Director
🇷🇺 Case 2: Russia Roll Forming Line
This customer integrated our Double-Head 4 Ton Hydraulic Uncoiler into their Z-shaped cold roll forming line.
The machine ensured continuous feeding and heavy-duty decoiling performance, even in extremely low temperatures down to -20°C, meeting the harsh operation conditions in Russia.
"The machine runs stably. The hydraulic expansion and coil switching system are very user-friendly and greatly reduced manual work."