Issued by: JIANGSU CLAYTON MACHINERY CO.,LTD
Abstract
The MC425CNC servo fully automatic metal cold saw is a CNC pipe cutting equipment independently developed and manufactured by JIANGSU CLAYTON MACHINERY CO.,LTD for mass metal profile blanking. It integrates servo feeding, hydraulic double clamping, circular saw cutting and automatic coolant circulation. The machine can complete automatic feeding, positioning, clamping, sawing and unloading in one continuous cycle. It is suitable for cutting round tubes, square tubes, rectangular tubes and solid bars of carbon steel, ordinary stainless steel, aluminum alloy and copper. This paper elaborates on its mechanical composition, working principle and sawing process, which can be used for technical documentation, product catalog and overseas customer technical communication.
1. Machine Structure
1.1 Welded Machine Bed & Saw Head Assembly
The main frame adopts thick steel plate welded structure with aging stress relief treatment, effectively reducing deformation and vibration during long-duration continuous cutting. The saw head is installed on vertical linear guide rails and driven by a hydraulic cylinder to realize stable downward cutting and retraction of the saw blade. The saw spindle adopts a reinforced heavy-duty structure, matched with HSS M42 circular saw blade to provide stable rotary cutting power. The saw head can be rotated as an optional configuration to realize angle cutting such as 45°, besides standard 90° straight cutting.
1.2 Servo Feeding Mechanism
The feeding system consists of servo motor, precision ball screw and linear guide rail. Closed-loop servo control ensures feeding accuracy up to ±0.1 mm. It supports single-stroke feeding and multi-step repeated feeding for long workpieces. The system automatically calculates feeding length and cutting quantity according to preset parameters. A tail material pulling device is equipped to minimize leftover waste at the pipe end.
1.3 Hydraulic Double Clamping System
Front and rear double hydraulic clamping fixtures are adopted. V-shaped customized jaws can clamp round tube, square tube and rectangular profiles. Synchronous hydraulic clamping prevents tube deformation especially for thin-wall pipes. Multiple small-diameter pipes can be clamped and cut simultaneously to raise production capacity. The clamping force is adjustable according to material thickness to avoid workpiece surface scratching and shifting during sawing.
1.4 CNC Control & Electrical System
The machine is equipped with industrial PLC + touch screen CNC control system. Operators can set cutting length, cutting quantity, saw feed speed and spindle speed on the HMI. Built-in safety functions include no-material stop, overload protection, saw blade breakage alarm and batch counting function. Manual and automatic modes are switchable for equipment debugging and mass production.
1.5 Circulating Cooling & Lubrication System
Automatic coolant circulation and filtration system sprays cutting fluid to the cutting zone during operation. It reduces cutting heat, suppresses burr formation and extends the service life of HSS saw blade. The filter tank separates metal chips from coolant to maintain clean cutting fluid for non-stop continuous operation.
2. Sawing Working Process
- Material Loading: Operators place raw metal tubes on the material support rack.
- Parameter Setting: Input target cutting length, total quantity, saw feed speed and clamping pressure on the touch screen.
- Automatic Servo Feeding: Servo mechanism pushes the pipe forward to the preset cutting position with precise positioning.
- Hydraulic Clamping: Front and rear fixtures clamp the pipe synchronously to fix the workpiece.
- Circular Saw Cutting: Hydraulic cylinder drives saw head down along vertical guide rail. The rotating HSS saw blade cuts the metal profile with continuous coolant spraying.
- Saw Head Retraction: Once cutting is finished, the saw head lifts back to its original position.
- Clamp Release: Hydraulic jaws open automatically.
- Cycle Repeat: Servo feeder pushes the pipe for next cut until reaching the preset total quantity. The machine will stop automatically when raw material runs out.
3. Process Characteristics
- Cold Saw Cutting Process: It belongs to metal cold cutting without thermal deformation on the workpiece. The cut surface is smooth with minimal burr, reducing secondary deburring workload.
- High Precision & Consistency: Servo feeding guarantees stable length tolerance in mass production.
- Wide Material Adaptability: Suitable for carbon steel, ordinary stainless steel, aluminum and copper profiles, including round tube, square tube, rectangular tube and solid bar.
- High Production Efficiency: Multi-pipe simultaneous cutting is available for small-size tubes. Continuous automatic cycle greatly reduces manual labor cost.
- Adjustable Cutting Parameters: Saw blade speed and sawing feed rate can be adjusted for different wall thickness and material hardness to avoid saw blade chipping.
4. Main Technical Specifications
表格
| Item | Specification |
|---|---|
| Model | MC425CNC |
| Cutting Principle | HSS circular cold saw cutting |
| Max. Cutting Capacity | Round pipe: Φ100×8mmSquare pipe:100×100×8mmRectangular pipe:100×70mmSolid round bar:Φ50mmSolid square bar:50×50mm |
| Cutting Angle | 90° standard, |
| Saw Blade Size | Φ300~Φ350 mm HSS circular saw blade |
| Main Spindle Motor | 3.3 / 4.0 KW |
| Servo Feeding Motor | 1.0 KW |
| Feeding Accuracy | ±0.1 mm |
| Single Stroke Feeding Length | 0–900 mm, multi-feed for longer pipe |
| Control System | PLC + CNC touch screen |
| Hydraulic Working Pressure | 4 MPa |
| Cooling System | Automatic circulating coolant with chip filtration |
| Overall Dimension(L×W×H) | 3100×1100×1950 mm |
| Machine Weight | Approx. 1600 KG |
| Applicable Materials | Carbon steel, ordinary stainless steel, aluminum alloy, copper |
| Warranty | 12 months |
5. Application Industries
MC425CNC automatic pipe cutting machine is widely used for raw material blanking in scaffolding, steel furniture, fitness equipment, automotive pipe parts, motorcycle frames, air-conditioning pipelines and general hardware manufacturing.
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