1. Product Overview
Product Name: Injector-Type Cutting Torch
Series: G01 Series
Manufacturer: WD&WL
Series: G01 Series
Manufacturer: WD&WL
The WD&WL G01 series injector-type cutting torch is a professional oxy-fuel cutting tool designed for metal fabrication, demolition, and industrial cutting applications. Utilizing the injector (suction) principle, this torch draws acetylene gas into the oxygen stream through negative pressure — eliminating the need for equal-pressure gas supply and ensuring stable flame performance even with fluctuating gas pressures.
The entire body is manufactured from premium copper with a precision-polished finish, delivering superior corrosion resistance, thermal conductivity, and professional appearance. Featuring a special-material needle valve for precise gas control and durable operation, the G01 series is available in three cutting capacities: 30mm, 100mm, and 300mm.
2. Key Features
Full Copper Body Construction
The entire torch body is manufactured from high-quality copper alloy, providing:
- Superior corrosion resistance — withstands harsh workshop and outdoor environments
- Excellent thermal conductivity — dissipates heat efficiently during prolonged cutting operations
- Lightweight yet durable — reduces operator fatigue while maintaining structural integrity
- Professional appearance — copper finish signals quality and reliability to end users
Precision Polished Finish
Every torch undergoes a complete precision polishing process, resulting in a smooth, mirror-like surface that:
- Reduces surface contamination buildup
- Makes cleaning and maintenance easier
- Provides a premium, professional appearance for retail display
- Resists oxidation and tarnishing over time
Special-Material Needle Valve
The needle valve is crafted from a specially formulated material that provides:
- Superior wear resistance — maintains precise gas flow control over thousands of operating cycles
- Tight sealing — prevents gas leakage when the valve is closed, ensuring safety
- Smooth adjustment — allows fine-tuned control of gas flow for optimal flame characteristics
- Extended service life — outlasts standard brass or steel needle valves
Injector (Suction) Principle — Stable Flame Performance
The injector-type design uses high-pressure oxygen flow to create negative pressure that draws in acetylene gas. This offers significant advantages:
- Works with low-pressure acetylene — no need for expensive equal-pressure regulators
- Stable flame under pressure fluctuations — oxygen pressure variations do not affect the mixing ratio
- Safer operation — reduced risk of flashback compared to equal-pressure torches
- Versatile gas compatibility — can work with acetylene, propane, or other fuel gases
Three Cutting Capacities — 30mm / 100mm / 300mm
The G01 series covers a complete range of cutting applications:
- G01-30: Light to medium cutting up to 30mm thickness — ideal for sheet metal, structural steel, and general fabrication
- G01-100: Medium to heavy cutting up to 100mm thickness — suitable for thick plates, heavy structural work, and industrial applications
- G01-300: Heavy-duty cutting up to 300mm thickness — designed for very thick sections, castings, and demolition work
3. Specifications
| Item No. | Product Code | Cutting Capacity | Pcs/Box | Pcs/Carton | Unit Weight | Gross Weight |
|---|---|---|---|---|---|---|
| W62152 | G01-30 | 30mm | 1pc | 15pcs | 0.77kg | 11.50kg |
| W62153 | G01-100 | 100mm | 1pc | 15pcs | 0.87kg | 13.10kg |
| W62154 | G01-300 | 300mm | 1pc | 15pcs | 1.09kg | 16.30kg |
4. Applications
- Metal Fabrication & Welding Shops
Precision cutting of steel plates, profiles, and structural components for fabrication projects.
- Shipbuilding & Marine Industry
Cutting thick steel plates and structural members for ship hull construction and repair.
- Construction & Demolition
Cutting steel beams, rebar, and structural elements during construction and demolition projects.
- Pipeline & Pressure Vessel Manufacturing
Cutting and beveling pipes and plates for welding preparation in oil & gas and chemical industries.
- Scrap Metal Processing
Cutting and sectioning scrap metal for recycling and processing operations.
- Maintenance & Repair Operations
On-site cutting for equipment repair, modification, and emergency maintenance in industrial facilities.
5. Size Selection Guide
| Model | Cutting Capacity | Best For | Weight |
|---|---|---|---|
| G01-30 (W62152) | Up to 30mm | Sheet metal work, light structural steel, general fabrication, HVAC ductwork. | 0.77kg |
| G01-100 (W62153) | Up to 100mm | Thick plate cutting, heavy structural work, shipbuilding, industrial fabrication. | 0.87kg |
| G01-300 (W62154) | Up to 300mm | Very thick sections, large castings, demolition work, heavy industrial cutting. | 1.09kg |
6. Why Choose Us
Professional Welding & Cutting Tools Manufacturer
WD&WL is a professional manufacturer of welding accessories, cutting tools, and hand tools. Our G01 series injector-type cutting torches are engineered to meet the demanding requirements of professional welders and cutters. Every unit undergoes rigorous quality testing — including pressure testing, flame stability verification, and leak detection — before shipment.
Full Copper Body — Built to Last
We use only premium copper alloy for the entire torch body. Many competitors use brass or aluminum bodies to cut costs — resulting in lower thermal conductivity, reduced corrosion resistance, and shorter service life. Our full copper construction ensures maximum durability and professional performance in demanding cutting applications.
Special-Material Needle Valve — Precision & Durability
Our needle valves are crafted from a specially formulated material that provides superior wear resistance and tight sealing compared to standard brass or steel valves. This ensures precise gas flow control, prevents leakage, and extends the service life of the torch — reducing maintenance costs and downtime for professional users.
Competitive Factory-Direct Pricing
As a direct manufacturer, we offer competitive wholesale and OEM pricing without middleman markups. Volume discounts are available for bulk orders, helping distributors and welding supply companies achieve better profit margins.
OEM & ODM Customization Support
We provide comprehensive customization services:
- Custom logo engraving or stamping on the copper body
- Branded color box or blister packaging
- Custom nozzle configurations and cutting capacity specifications
- Handle color and finish customization
- Private label programs for welding supply distributors
Fast Delivery & Reliable Global Logistics
Standard orders ship within 15–25 days after confirmation. We partner with established international freight forwarders for on-time delivery to ports worldwide. Rush orders can be accommodated upon request.
7. FAQ
Q1: What is an injector-type (suction-type) cutting torch?
A: An injector-type cutting torch uses the Venturi effect — high-pressure oxygen flowing through a narrow nozzle creates negative pressure that draws in acetylene (or other fuel gas) automatically. This is different from equal-pressure torches, which require both gases to be supplied at the same pressure.
Advantages of injector-type design:
- Works with low-pressure acetylene generators or cylinders
- Stable flame even when gas pressure fluctuates
- Safer — reduced risk of flashback
- Simpler setup — no need for equal-pressure regulators
Q2: What does “full copper body” mean and why is it important?
A: “Full copper body” means the entire torch body (handle, mixing chamber, barrel) is manufactured from copper alloy, not brass, aluminum, or other materials. Copper provides:
- Highest thermal conductivity — dissipates heat away from the cutting zone
- Superior corrosion resistance — withstands moisture, chemicals, and harsh environments
- Professional appearance — polished copper finish looks premium and signals quality
- Longer service life — copper resists degradation better than alternative materials
Q3: What is the “special-material needle valve”?
A: The needle valve is the precision component that controls gas flow when you adjust the torch. Our special-material needle valve is made from a proprietary alloy that provides:
- Higher wear resistance — maintains precise shape and sealing surface over thousands of adjustments
- Better sealing — prevents gas leakage when fully closed, ensuring safety
- Smooth operation — allows fine, precise control of gas flow for optimal flame tuning
- Longer service life — outlasts standard brass or steel needle valves by 2-3x
This is a critical component that directly affects torch performance, safety, and longevity.
Q4: Can this torch work with propane or other fuel gases?
A: Yes! The injector-type design is compatible with multiple fuel gases including:
- Acetylene — standard fuel, highest flame temperature
- Propane — lower cost, suitable for preheating and cutting thicker materials
- Natural gas — available in some industrial settings
- MAPP gas — higher temperature than propane, good for cutting and brazing
Note: Different fuel gases may require nozzle adjustments and different pressure settings. Consult the user manual or our technical team for optimal settings.
Q5: Do you support OEM/ODM orders?
A: Yes! We offer comprehensive OEM and ODM services including custom logo engraving/stamping, branded packaging, custom nozzle configurations, and private label programs. Minimum order quantities apply — contact our sales team for details.
Q6: What is the minimum order quantity (MOQ)?
A: Standard MOQ starts at one full carton (15 pieces for all three models). For OEM/ODM orders, MOQ may vary based on customization requirements. Contact us for the latest pricing and MOQ details.
Q7: How long is the delivery time?
A: Standard orders: 15–25 days after order confirmation. OEM/ODM orders may require additional time for mold setup, custom packaging, and logo production. Rush orders can be discussed on a case-by-case basis.
