Mould-Type Spiral Duct Forming Machine for High-Airtightness Round Ducts
Dedicated Fixed-Mould Spiral Forming: Utilizes precision cast steel ring moulds (mandrels) to form each diameter size, delivering exceptional roundness, structural rigidity, and superior airtightness compared to flexible band-type formers.
Wide Diameter Range & Standard 137 mm Strip: Accommodates galvanized steel, stainless steel, and aluminum coils (thickness 0.4–1.2 mm) with fixed moulds covering diameters from Φ100 mm to Φ1600 mm.
Overview & Fixed-Mould Forming Superiority
The Mould-Type Spiral Duct Forming Machine for High-Airtightness Round Ducts (Model: JL-1600) is an advanced automatic spiral tubeformer engineered for high-specification HVAC circular ventilation ductwork[cite: 146]. Unlike flexible steel band formers, this machine utilizes dedicated, high-precision cylindrical fixed-diameter ring moulds (mandrels)[cite: 146, 162].
By forming each duct size through an exact cast-steel fixed ring, it guarantees unmatched geometric roundness, higher structural seam rigidity, and superior airtight sealing that easily satisfies Class C/D leakage ratings[cite: 146]. Driven by an industrial 11 kW / 15 kW motor and coordinated by a Mitsubishi PLC touchscreen system, it produces spiral ducts from Φ100 mm up to Φ1600 mm at line speeds up to 38 m/min[cite: 146].
Precision Mould Mechanics & Industrial Controls
- Fixed Mould Ring Tooling: Each calibrated ring mould forms a fixed diameter, eliminating seam slippage, ovality defects, and ensuring perfectly airtight 4-ply lock seams[cite: 146].
- GCr15 Bearing Steel Rollers: Hardened GCr15 bearing steel rollers resist abrasion and mechanical fatigue, delivering smooth feed motion without stripping galvanized coatings[cite: 146].
- Dual Cut-Off Options: Standard synchronized high-speed rotary roller cutter delivers quiet, spark-free, burr-free cuts, with optional plasma cutting available for heavy stainless steel[cite: 146].
- Integrated Heavy Decoiler & Drive: Features a 900–1200 kg coil payoff stand, three 0.75 kW gear reducers, and a Beijing Huader hydraulic station for consistent strip tension[cite: 146].
Technical Blueprint & Parameter Specifications
JL-1600 Model Specifications, Fixed Mould Advantages, Drive Configuration & Roll-Cutting Options[cite: 146]
Technical Parameters (JL-1600 Mandrel Tubeformer Series)
| Specification Item | Standard Parameters (JL-1600) | Engineering Features & Notes |
|---|---|---|
| Sheet Thickness Capacity | 0.4 mm – 1.2 mm[cite: 146] | Galvanized steel, stainless steel, and aluminum coils[cite: 146] |
| Feeding Strip Width | 137 mm[cite: 146] | Optimized strip width for tight lock seams and maximum seam rigidity[cite: 146] |
| Duct Diameter Range | Φ100 mm – Φ1600 mm[cite: 146] | Uses interchangeable fixed-size ring moulds for exact roundness[cite: 146, 162] |
| Working Line Speed | 1 – 38 m/min[cite: 146] | Stepless variable speed control via inverter[cite: 146] |
| Coil Decoiler Capacity | 900 kg – 1200 kg[cite: 146] | Mechanical expanding mandrel with friction brake tensioner[cite: 146, 161] |
| Cutting Methods | Roller Cutting (Standard) / Plasma Cut (Optional)[cite: 146] | 0.4–1.2 mm rotary slitting without sparks or chips[cite: 146] |
| Main Motor Power | 11 kW / 15 kW (Siemens or Shanghai Huyuan)[cite: 146] | Paired with 3x 0.75 kW reducer drive motors[cite: 146] |
| Forming Roller Material | GCr15 Bearing Steel[cite: 146] | Vacuum quenched for high surface hardness and long service life[cite: 146] |
| Hydraulic & Electric Units | Beijing Huader Hydraulic / Mitsubishi PLC[cite: 146] | Schneider, Chint, and Delixi electrical components[cite: 146] |
| Overall Dimensions & Weight | 5000 × 1800 × 1600 mm | 2500 kg[cite: 146] | Heavy channel bed with adjustable runout support table[cite: 146, 157] |
Mould Rings, Machine Architecture & Workstation Details
Precision Cast Ring Mandrel Moulds Array[cite: 159]
Large-Diameter Spiral Duct Forming Head & Support[cite: 158]
Batch Duct Fabrication & Runout Discharge Rack[cite: 160]
Coil Uncoiler Reel & Primary Infeed Drive Motor[cite: 161]
Forming Head, Hydraulic Station & Touchscreen HMI[cite: 163]
Heavy-Duty Runout Table Alignment with Big Diameter Duct[cite: 157]
Related Products
Request A Quote
Inquiring for: Mould-Type Spiral Duct Forming Machine for High-Airtightness Round Ducts. Our technical support will provide specifications and quotation within 24 hours.