Product Introduction The Steel Tube Spinning Flaring Machine (also called a rotary flaring / spin-flaring machine) is a metal-forming device that enlarges and shapes the end of a steel tube so it can be joined with a flange. Unlike cutting or welding, it relies on a cold rotary-swaging process: a spinning swaging head is pushed against the tube end while rotating, gradually and evenly compressing the material outward into a precise, smooth and dimensionally stable flare (37° or 90°). It is the preferred alternative to traditional heating or manual flaring whenever joint sealing, repeatability and surface quality matter.
| Component | Function |
| Rotary Swaging Mechanism | Performs the spinning compression |
| Clamping Mechanism | Holds the tube securely during forming |
| Rotary Power Unit | Drives the swaging head |
| Operating Handle & Speed Adjustment | Ergonomic, controllable feed |
| Control Panel & Main Power Switch | Simple, centralized operation |
| Cabinet | Houses the hydraulic system and integrates tool storage |
| Feature | Advantage | Benefit |
| Cold rotary-swaging process | Smooth, progressive compression with no heat-affected zone | Crack-free, high-precision, mirror-smooth flares with minimal rework and scrap |
| Dual-angle forming in one machine | Supports both 37° and 90° flares | One machine covers the two most common flange geometries — no second device needed |
| Standard industrial power only | Runs on 380V/50Hz three-phase AC | No special air or hydraulic supply required beyond the integrated system — easy to deploy in any workshop |
| Highly mobile cabinet | Casters plus forklift/crane lifting points | Move the machine to the job instead of moving pipes to the machine |
| Stable, low-vibration drive | Consistent forming force | Reliable, repeatable quality across large batches |
| Parameter | Specification |
| Model | KC-D90 |
| Pipe Diameter Range | Φ15×1.5 – Φ90×6.0 mm (outer diameter × wall thickness) |
| Flaring Angle | 37° / 90° |
| Working Pressure | 12 MPa |
| Working Medium | ISO VG46 hydraulic oil |
| Working Voltage | 380V / 50Hz, 3-phase AC |
| Motor Power | 1.5 kW |
| Reduction Ratio | I = 12.5 |
| Overall Dimensions (L×W×H) | 780 × 580 × 1220 mm |
| Weight | 350 kg |
1.Hydraulic and pneumatic piping systems
2.Petrochemical and process pipelines
3.Shipbuilding and offshore
4.HVAC and refrigeration
5.Construction and structural steel
6.General machinery and equipment manufacturing
| Aspect | KC-D90 Spinning Flaring | Traditional Heating Flaring | Manual Flaring |
| Surface quality | Smooth, burr-free | Oxidized, scale formed | Rough, inconsistent |
| Heat-affected zone | None (cold process) | Yes — weakens material | None |
| Precision / repeatability | High, machine-controlled | Low | Low, operator-dependent |
| Joint sealing reliability | High | Medium | Low |
| Labor intensity | Low | Medium–High | High |
| Mobility | Casters + forklift/crane | Fixed station | Hand tool |
1.Cold process protects material integrity — no annealing, no scale
2.Machine-controlled forming delivers uniform quality batch after batch
3.Dual-angle capability reduces capital outlay
4.Mobile design adapts to workshop or field conditions
5.Responsive customization and spare-parts support
Q1:What tube materials can the KC-D90 process?
A:It is designed for steel tubes used in flange connections. Suitability for stainless or special alloys should be confirmed with our engineering team based on wall thickness and hardness.
Q2:Can it do both 37° and 90° flares?
A:Yes. The machine supports 37° and 90° flaring; selectable tooling / setup handles each angle.
Q3:How is the machine moved?
A:A standard 380V / 50Hz three-phase AC supply. No additional air or hydraulic source is needed beyond the integrated system.
Q4:What is the largest tube it can flare?
A:Up to Φ90 mm outer diameter (wall thickness per specification). Contact us for sizes outside the standard range.
Address
Changxing Road, Jiangbei District, Ningbo City, Zhejiang Province, China
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