Product Parameters:
1. Machine Overview
Structurally this is the G25-7025B-3000W: split-type welded bed, 120 RPM / 1.2G chuck, 3000 W fiber source, semi-automatic loading. The difference is the bevel cutting capability, which allows the laser head to cut angled edges on tube ends and contours instead of only square cuts — eliminating a separate grinding or machining step before welding.
2. Key Advantages
- Bevel cutting on the machine: weld-preparation edges cut in the same cycle as the profile.
- Tube range Ø15–250 mm — round, square, oval and special profiles.
- Chuck rated at 120 RPM / 1.2G with 20–22 s semi-automatic loading.
- 20–45 mm short tail remnant for maximum yield.
- Split-type welded bed annealed at 600 °C.
- Running cost approx. CNY 20–25 per hour.
3. Welded Machine Bed & Structure
The split-type bed (main machine bed + unloading bed) is welded from steel plates and tubular sections, stress-relief annealed at 600 °C with a 4.5-hour hold and furnace cooling, then rough and precision machined. Bevel cutting imposes multi-axis simultaneous motion on the head; the annealed, finish-machined bed is what keeps those angled cuts accurate along the full tube length.
4. Automatic Loading System
The semi-automatic loading system runs a 20–22 s cycle: the centering clamping jaw positions the raw tube, the rear clamp grips and feeds it into the front chuck. Beveled parts discharge onto the separate unloading bed, ready for fit-up and welding without secondary edge work.
5. Cutting Performance
Reference cutting data for the 3000 W source (carbon steel with oxygen/air assist, piercing 0.1–0.8 s):
| Material | Thickness (mm) | Cutting Speed (m/min) | Assist Gas |
|---|---|---|---|
| Carbon steel | 1 | 7–10 / 20–25 | Oxygen / air |
| Carbon steel | 2 | 5–7.5 / 13–17 | Oxygen / air |
| Carbon steel | 4 | 3.5–4.5 | Oxygen / air |
| Carbon steel | 8 | 1.6–2.3 | Oxygen / air |
| Carbon steel | 12 | 0.9–1.2 | Oxygen / air |
| Stainless steel | 1 | 20–25 | Nitrogen |
| Stainless steel | 2 | 12–15 | Nitrogen |
| Stainless steel | 4 | 3.5–4.5 | Nitrogen |
| Stainless steel | 6 | 1.3–1.8 | Nitrogen |
| Stainless steel | 8 | 0.8–1 | Nitrogen |
| Aluminum alloy | 1 | 20–25 | Nitrogen |
| Aluminum alloy | 2 | 13–17 | Nitrogen |
| Aluminum alloy | 4 | 3.5–4.5 | Nitrogen |
| Aluminum alloy | 6 | 1.3–1.8 | Nitrogen |
| Brass | 1 | 22–26 | Nitrogen |
| Brass | 2 | 10–15 | Nitrogen |
| Brass | 4 | 2.5–3.5 | Nitrogen |
| Brass | 6 | 1–1.5 | Nitrogen |
| Copper | 1 | 20–25 | Oxygen |
| Copper | 2 | 9–12 | Oxygen |
| Copper | 3 | 3.5–5.5 | Oxygen |
| Copper | 4 | 2.2–2.5 | Oxygen |
6. Bevel Cutting Capability
Where the standard machine produces square-cut ends, this version cuts beveled edges directly on the tube — the weld preparation structural fabricators otherwise create by hand grinding, milling or a dedicated beveling machine. Typical uses are V-prep and similar weld-ready edges on tube ends and branch openings, cut in the same program as the contour so parts come off the machine ready for fit-up. All other G25-7025B specifications are unchanged.
7. Power, Cooling & Gas Requirements
| Item | Requirement |
|---|---|
| Power supply | Three-phase five-wire 380–400 VAC, 50 Hz; recommended capacity ≥ 60 kVA, voltage stability ± 2%, grounding resistance ≤ 3 Ω |
| Cooling water | 40 L distilled / deionized water, conductivity < 10 µS/cm |
| Assist gas | Oxygen purity ≥ 99.6%; nitrogen purity ≥ 99.99% |
8. Key component configuration
| No. | Component | Brand | Model / Specification |
|---|---|---|---|
| Key Components | |||
| 1 | Fiber Laser Source | Raycus / Chuangxin | 3000W / Domestic first-tier brand |
| 2 | Cutting Head | Guanli | Tube-cutting R&D dedicated 3000W / Domestic first-tier brand |
| 3 | Rack and Pinion | YYC | M2-6 grade / Taiwan, China |
| 4 | Reducer | MOTOREDUCER | 110-090 / France |
| 5 | Linear Guide Rail | AIRTAC | CGH35 / Taiwan, China |
| 6 | Motor | Inovance | High-performance motor, 4000 rpm, bus-type / Domestic first-tier brand |
| 8 | Water Chiller | Hanli / S&A | Domestic first-tier brand |
| 9 | Electrical Control Components | Schneider | France |
| 10 | Pneumatic Components | AIRTAC | Taiwan, China |
| Machining Components | |||
| 11 | Main Machine Bed | Independently developed, Suzhou | 8.5 m / high-temperature annealing at 600°C |
| 12 | Chuck | Independently developed, Suzhou | QL-250 pneumatic / continuous supply clamping |
| 13 | Auxiliary Loading and Servo Floating Support Rack | Independently developed, Suzhou | 3 supports / load capacity 220 kg |
| 14 | Semi-automatic Loading Device | Independently developed, Suzhou | 3 conveyor units, stores 5 tubes for automatic continuous loading |
| 15 | Unloading Device, Unloading Frame (optional) | Independently developed, Suzhou | Pneumatic unloading flap, max unloading length 2 m, 40 kg per meter (servo follow-up + pneumatic flap combination, max 4 m unloading optional) |
| Software System | |||
| 16 | Operating System | Shanghai Bochu | 5000 bus-type system / Shanghai |
| 17 | Nesting Software | Shanghai Bochu | Dedicated 3D tube-cutting software / Shanghai |
| Others | |||
| 18 | Operation Direction | Left-hand machine | Standard |
| 19 | Packaging and Transportation | Standard packaging | Standard |
Note: Industrial power supply: 380V ±5V. Customers should add a voltage stabilizer according to actual site conditions.
