Product Parameters:
1. Machine Overview
The G25-7025A-3000W is built for fabricators who need big-tube capacity at the lowest possible investment. As the simplified member of the G25 family it keeps the core cutting machine — welded annealed bed, 3000 W fiber source, chuck rated at 80 RPM / 0.8G, Ø20–360 mm tube range — and omits the automatic loading equipment, so tubes are loaded and handled manually. For workshops cutting larger round, square or rectangular tube in smaller batches, this is the most direct path to fiber-quality tube cutting.
2. Key Advantages
- Economy positioning: core 3000 W tube cutting without the cost of an automatic loader.
- Very wide tube range: Ø20–360 mm on one machine.
- Chuck rated at 80 RPM / 0.8G, sized for large-diameter, heavier tube.
- Same welded-and-annealed bed construction as the rest of the G25 platform (600 °C, 4.5 h).
- Full 3000 W process window: carbon steel, stainless steel, aluminum, brass and copper.
3. Welded Machine Bed & Structure
The bed is welded from steel plates and tubular sections, then high-temperature stress-relief annealed at 600 °C, held for 4.5 hours and cooled in the furnace, followed by rough and then precision finish machining. This removes internal stress from the welds and is what allows a value-engineered machine to hold its cutting accuracy over long production runs.
4. Loading & Material Handling (Economy Configuration)
By design, the G25A simplified configuration carries no automatic loading system in its specification — material handling is manual. This is the main cost saving versus the G25B. It suits operations where tubes are long and heavy but batch sizes are moderate, and where an automatic loader can be dispensed with; the running cost reference for this configuration is approx. CNY 30–35 per hour.
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. 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% |
7. Key component configuration
| No. | Component | Brand | Model / Specification |
|---|---|---|---|
| Key Components | |||
| 1 | Fiber Laser Source | Kaipulin | 3000W / Domestic first-tier brand |
| 2 | Cutting Head | Guanli | 3000W / Domestic first-tier brand |
| 3 | Rack and Pinion | Jingte | M2-6 grade / Taiwan, China |
| 4 | Reducer | MOTOREDUCER | 110-090 / China |
| 5 | Linear Guide Rail | AIRTAC, Taiwan | CGH35 / China |
| 6 | Motor | Inovance | High-performance motor, max 4000 rpm, bus-type drive |
| 7 | Water Chiller | Hanli | Domestic first-tier brand |
| 8 | Electrical Control Components | Schneider, France | China |
| 9 | Pneumatic Components | AIRTAC, Taiwan | China |
| Machining Components | |||
| 10 | Main Machine Bed | Independently developed, Suzhou | 7.5 m / high-temperature annealing |
| 11 | Chuck | Independently developed, Suzhou | QL-250 pneumatic / continuous supply clamping |
| 12 | Support Bracket | Independently developed, Suzhou | 3 supports / load capacity 200 kg |
| 13 | Unloading Device, Unloading Frame | Independently developed, Suzhou | Pneumatic unloading flap, 40 kg per meter |
| Software System | |||
| 14 | Operating System | Shanghai Bochu | Bochu tube-cutting system / Shanghai |
| 15 | Nesting Software | Shanghai Bochu | Dedicated 3D tube-cutting software / Shanghai |
| Others | |||
| 18 | Operation Direction | Right-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.
8. Overall technical parameters
| Component | Attribute | Parameter Value |
|---|---|---|
| Laser source | Output power | 3000W |
| Laser source | Operating mode | Fiber continuous |
| Laser source | Fiber diameter | 50–100 µm |
| Laser source | Cooling method | Water-cooled |
| Laser source | Cuttable materials | Carbon steel, stainless steel, aluminum alloy, brass, copper and other metals |
| Machine bed | Structure | Tube-plate welded |
| Machine bed | Length | 7.5 m |
| Chuck | Chuck model | QL250 |
| Chuck | Operating mode | Pneumatic |
| Chuck | Load capacity | Max 220 kG |
| Cutting head | Focal length | 150 mm |
| Cutting head | Collimation focal length | 100 mm |
| Cutting head | Focus adjustment speed | 50 mm/s (manual focus: none) |
| Cutting head | Assist gas pressure | ≤ 3 MPa |
| Water chiller | Cooling medium | Distilled water / deionized water |
| Water chiller | Ambient/chilled water setting | 30 / 20 (adjustable) |
| Water chiller | Water temperature control precision | ± 0.1 °C |
| Water chiller | Water pump flow rate | 10 L/min |
| Water chiller | Water pump head | 20 m |
