The Portable Small Gantry CNC Plasma & Flame Cutting Machine – LGK-120HD is a compact metal-cutting machine designed for workshops, repair teams and small fabrication operations that need accurate cutting of carbon steel. It is built for portable use, offers a 120 A rated output current, and supports manual carbon-steel cutting from 0.3–25 mm quality thickness up to 45 mm maximum thickness.
At a glance
Best suited to: Small fabrication, repair and maintenance cutting of carbon steel
Input material: Carbon steel, with manual quality cutting thickness of 0.3–25 mm
Final product: Cut carbon-steel parts, shapes and plate sections
Rated capacity: 120 A rated output current
Operating range: Current adjustment range of 30–120 A
Machine size: 675 × 320 × 605 mm and 46 kg net weight
What is Portable Small Gantry CNC Plasma & Flame Cutting Machine – LGK-120HD?
The LGK-120HD is a portable small gantry CNC plasma and flame cutting machine for cutting carbon steel into usable parts and plate sections. In practical terms, it takes steel plate or sheet as input and uses a cutting torch system to separate that material into shapes required for fabrication, repair or maintenance work.
It is important to read the product category correctly. This machine cuts metal; it does not produce steel sheet, roll plate, or perform forming operations such as bending or profiling after cutting. Buyers choosing between cutting, forming and machining equipment should view the LGK-120HD as a compact cutting asset intended to prepare parts for downstream fabrication.
Afrimart describes it as a portable gantry CNC design intended for flexible metal-cutting operations. The published information confirms an air-cooled torch system, a 120 A rated output current, and a compact footprint of 675 × 320 × 605 mm with a 46 kg net weight. The product listing identifies the machine type and model, but it does not state the gantry frame material or the named CNC controller brand, so buyers who need those details for maintenance standardisation should request the full machine configuration from Afrimart before ordering.
How does Portable Small Gantry CNC Plasma & Flame Cutting Machine – LGK-120HD work?
The LGK-120HD works by supplying controlled cutting current to a torch system so an operator can cut carbon steel across a practical thickness range. Based on the verified specifications, the operating process can be understood in these stages:
Power input and machine setup: The machine is connected and prepared to operate at a rated input capacity of 21.23 kVA. Buyers should note that the published specification states input capacity in kVA, and they should confirm the site electrical supply requirements for the exact configuration in the written quotation.
Current selection for the job: The operator adjusts the output current within the verified 30–120 A range. This matters because thinner carbon-steel sections and thicker plates do not require the same cutting setting, and the adjustable range gives the machine broader workshop usefulness.
Arc starting: The machine provides an open circuit voltage of 308 VDC, with VDC meaning volts direct current. This figure is relevant to reliable arc initiation, especially where consistent starts matter across repeated cutting tasks.
Cutting operation: During cutting, the machine delivers a rated output current of 120 A and a rated output voltage of 128 V. Afrimart lists a quality cutting thickness for carbon steel, manual cutting, of 0.3–25 mm and a maximum manual cutting thickness of 45 mm.
Gas-supported plasma cutting: The published working plasma gas pressure is 0.3–0.5 MPa. Maintaining gas pressure within that stated range is necessary for normal operation, so buyers should plan the compressed gas supply accordingly.
Continuous duty use: The machine is rated at a 100% duty cycle. In buyer terms, that means it is designed for continuous operation at the rated duty condition rather than only short intermittent runs.
The product page does not specify the supplied gantry rail arrangement, CNC control interface, flame-cutting accessories, compressor package, gas supply hardware, cutting bed or run-out support. Buyers should confirm the complete machine scope and all included accessories before ordering.
Where is Portable Small Gantry CNC Plasma & Flame Cutting Machine – LGK-120HD used?
General metal fabrication workshops: This machine suits smaller fabrication environments that cut carbon-steel parts for gates, frames, brackets and general steelwork. Its compact 675 × 320 × 605 mm size and 46 kg net weight can help workshops add cutting capability without dedicating space to a larger fixed installation.
Repair and maintenance departments: Maintenance teams often need to replace worn steel components or prepare patch plates quickly. The 30–120 A current adjustment range gives operators flexibility when moving between light-gauge repair work and heavier plate cutting within the machine’s published range.
Steel plate cutting for custom parts: Workshops producing one-off or short-run parts can use the LGK-120HD to cut carbon-steel shapes from plate. Afrimart specifically positions it for steel plate cutting, making it relevant where purchased pre-cut blanks are not practical.
Mobile or repositioned workshop operations: A net weight of 46 kg makes the unit relatively manageable compared with heavier stationary cutting systems. For contractors or engineering businesses that sometimes reconfigure work areas, that portability can be operationally useful.
Small contractor fabrication support: Contractors involved in structural repairs, plant maintenance or site support can use a portable cutting machine to prepare steel pieces near the work area. The benefit is reduced dependence on sending every urgent cut back to a central workshop.
Agricultural equipment repair: Farms, agro-processing plants and regional engineering workshops across Africa frequently need steel repair parts made quickly. Because the machine is intended for carbon-steel cutting over a wide manual thickness range, it can fit local repair fabrication tasks where downtime matters.
Training and supervised technical workshops: The machine’s published features are straightforward: adjustable current, air-cooled torch operation and stated gas pressure requirements. That makes it a practical option for supervised operator environments where teams need a cutting machine that is easier to position and understand than a larger industrial line.
Maintenance support in broader industrial plants: Industrial sites such as processing plants, depots and engineering service shops often need occasional carbon-steel cutting capability for fixtures, covers and support brackets. A 100% duty cycle is particularly relevant where repeated cutting jobs may arise during shutdown or maintenance windows.
Technical specifications
The table below summarises the verified published specifications for the LGK-120HD configuration listed by Afrimart.
| Specification | Verified value | Buyer note |
|---|---|---|
| Product name | Portable Small Gantry CNC Plasma & Flame Cutting Machine – LGK-120HD | Use the full product name on enquiries to avoid confusion with other plasma cutters. |
| Afrimart SKU | 1600488966505 | Quote this SKU when requesting availability or documentation. |
| Model | LGK-120HD | Confirm that the quotation and nameplate both reference this exact model. |
| Machine type | Portable Small Gantry CNC Plasma & Flame Cutting Machine | The listing identifies both plasma and flame cutting in the machine type; buyers should confirm the supplied torch package and included cutting modes. |
| Rated input capacity | 21.23 kVA | Afrimart’s description table also shows “21.23 VA” once, but the verified specification provided for this article is 21.23 kVA. Buyers should request the electrical data sheet for site planning. |
| Rated output current | 120 A | This is the rated cutting current, not a statement of guaranteed cut quality on every thickness. |
| Rated output voltage | 128 V | Confirm whether this value is measured at rated output and how it relates to the selected cutting mode. |
| Rated duty cycle | 100 % | Duty cycle indicates intended continuous operation under rated conditions. |
| Open circuit voltage | 308 VDC | VDC means volts direct current; this is relevant for arc starting and electrical safety planning. |
| Current adjustment range | 30–120 A | Useful for matching the cutting setting to thinner or thicker carbon-steel work. |
| Quality cutting thickness, carbon steel, manual cutting | 0.3–25 mm | This is the published quality range for manual carbon-steel cutting, so buyers should align expected finish quality with this figure. |
| Maximum cutting thickness, carbon steel, manual cutting | 45 mm | Maximum thickness is not the same as quality cutting thickness; ask Afrimart how this affects edge finish and cutting speed. |
| Working plasma gas pressure | 0.3–0.5 MPa | Confirm the required gas source arrangement and whether any regulator set is included. |
| Torch cooling mode | Air cooling | Air-cooled torches simplify operation but buyers should confirm consumable and duty requirements for their workload. |
| Overall dimensions (L × W × H) | 675 × 320 × 605 mm | These are operating dimensions, not packing dimensions; request shipping dimensions if transport planning is important. |
| Net weight | 46 kg | This is net weight only; ask for gross shipping weight if lifting and freight planning are required. |
Specifications may vary according to configuration and should be confirmed in Afrimart’s current written quotation before purchase.
What are the main operational benefits?
Broader job coverage from one machine: The verified 30–120 A current adjustment range means the LGK-120HD can be set for different carbon-steel cutting tasks rather than a single narrow application. That can help workshops handle both thin sheet work and thicker plate jobs within the published range.
Continuous working capability: A 100% rated duty cycle is significant for users who expect repeated or extended cutting periods. In practical terms, it supports continuous operation at the rated condition rather than forcing short duty pauses typical of lighter-duty equipment.
Useful carbon-steel thickness range: The published quality manual cutting thickness of 0.3–25 mm, with a maximum manual thickness of 45 mm, gives buyers two different planning figures. This helps technical teams match the machine to daily cutting requirements instead of choosing on maximum thickness alone.
Portable workshop deployment: With dimensions of 675 × 320 × 605 mm and a net weight of 46 kg, the machine is compact enough for workshops that need to conserve floor space or move equipment between work areas. That portability is a practical benefit where plant layout changes often.
Simplified torch cooling arrangement: The air-cooled torch system avoids the added complexity of a separate liquid cooling circuit in the published configuration. For many smaller users, that can make operation and routine handling simpler.
Reliable cutting setup control: A rated output current of 120 A, rated output voltage of 128 V and open circuit voltage of 308 VDC show that the machine is specified with defined electrical performance figures rather than only general marketing language. Buyers can use these values when comparing equipment suitability for a known cutting duty.
Compressed gas operation within a stated range: The working plasma gas pressure of 0.3–0.5 MPa gives maintenance and utilities teams a concrete design parameter. This is useful when checking whether an existing compressed gas setup can support the machine.
Why does this equipment matter for African industry?
Compact cutting equipment matters across African industry because many businesses need practical fabrication capability without investing immediately in larger fixed cutting systems. The LGK-120HD is relevant where engineering capacity is being built incrementally: small workshops, contractor yards, maintenance departments and regional repair centres often need to cut carbon steel accurately for local use.
In many African markets, transport time for replacement parts can slow maintenance work. A machine that can cut carbon steel from very thin sheet up to thicker plate can support local part preparation for repairs, brackets, covers, supports and fabricated assemblies. That does not eliminate the need for machining or finishing where tolerances are critical, but it can improve local responsiveness.
The machine’s compact dimensions and 46 kg net weight also matter in environments where workshop space is limited or layouts are frequently reworked. Not every buyer operates from a large industrial estate with dedicated cutting bays. Smaller engineering firms, vocational workshops and service contractors may place a high value on equipment that is easier to position.
Africa is not a single operating environment, and buyer priorities vary. In some markets the key issue is space; in others it is maintenance flexibility, utility planning or operator training. The LGK-120HD is most relevant where carbon-steel cutting is needed regularly enough to justify a dedicated machine, but where portability and a manageable machine size are still important.
What should buyers confirm before ordering?
- Exact model reference: LGK-120HD
- Afrimart SKU: 1600488966505
- Required cutting process: plasma only or plasma and flame package
- Expected carbon-steel thickness range in daily production
- Required edge quality versus maximum thickness requirement
- Required output setting range for actual jobs
- Site electrical supply matched to 21.23 kVA input capacity
- Required output duty under planned operating conditions
- Compressed gas availability within 0.3–0.5 MPa
- Gas regulation and hose package included in supply scope
- Torch package and consumables included
- CNC control interface and programming method
- Gantry travel range and effective cutting width
- Cutting bed, support table or rail arrangement included
- Overall installation footprint around the 675 × 320 × 605 mm machine size
- Transport, handling and lifting plan for 46 kg net weight
- Operator safety procedures and PPE requirements
- Operator training and commissioning support required
- Spare consumables and wear parts list
- Recommended maintenance schedule
- Warranty terms and service support scope
- Delivery destination, import documentation and lead time
The most consequential unstated issue in the published source is the complete supplied configuration, especially the actual gantry travel, control interface and included cutting accessories. Buyers should request a formal quotation with a detailed scope of supply and technical datasheet to resolve this before committing.
How to source Portable Small Gantry CNC Plasma & Flame Cutting Machine – LGK-120HD through Afrimart
Afrimart can help buyers confirm whether the LGK-120HD matches the intended cutting duty and whether the offered configuration includes the accessories needed for installation and operation. This is especially important for portable cutting equipment, where the practical difference between a base unit and a ready-to-work package can be significant.
When requesting a quotation, provide:
- Required capacity
- Intended application
- Input materials
- Project location and country
- Available utilities
- Required accessories
- Installation and training requirements
- Target project date
Request a quotation for Portable Small Gantry CNC Plasma & Flame Cutting Machine – LGK-120HD through Afrimart. If you prefer a direct written enquiry, you may also contact [email protected].
Frequently asked questions
What is the LGK-120HD used for?
The LGK-120HD is used for cutting carbon steel in fabrication, repair and maintenance work. Afrimart identifies it as a portable small gantry CNC plasma and flame cutting machine, and the published application examples include metal fabrication workshops, steel plate cutting and carbon-steel cutting.
What thickness of steel can the LGK-120HD cut?
According to the published specification, the LGK-120HD has a manual quality cutting thickness for carbon steel of 0.3–25 mm and a maximum manual cutting thickness of 45 mm. Buyers should distinguish between quality cutting thickness and maximum thickness when judging whether it suits their finished-part requirements.
What power output does the LGK-120HD provide?
The verified electrical output figures are a rated output current of 120 A and a rated output voltage of 128 V. The machine also has a current adjustment range of 30–120 A, which allows operators to set the output to suit different carbon-steel cutting tasks within the machine’s published working range.
What utilities are needed to operate the LGK-120HD?
The published data shows a rated input capacity of 21.23 kVA and a working plasma gas pressure requirement of 0.3–0.5 MPa. That means buyers should check both electrical supply and gas supply arrangements. The listing does not state the full installation package, so the exact site utility connection details should be confirmed in writing.
Is the LGK-120HD suitable for continuous operation?
Yes, the machine is listed with a 100% rated duty cycle. In practical terms, this means it is designed for continuous operation under the rated duty condition. Buyers should still match the machine to the intended job pattern and confirm whether the selected torch and accessories support the same workload.
Is the torch water-cooled or air-cooled?
The published torch cooling mode is air cooling. This can simplify operation compared with systems that need a separate water-cooling circuit. Buyers should still request the torch and consumables details, especially if the machine will be used heavily or in demanding maintenance environments.
What should I confirm about the configuration before buying?
The first thing to confirm is the full supplied scope. The product page identifies the machine type and key electrical and cutting figures, but it does not specify the included gantry travel, controller details, flame-cutting accessories, support table or gas supply package. A written quotation and technical datasheet are the right documents to request.
How do I request a quotation for the LGK-120HD?
You can request a quotation by sending Afrimart your intended application, expected carbon-steel thickness range, project location, available utilities, required accessories and target project date. The most direct route is to use the product page enquiry for the LGK-120HD so the quotation can be matched to the correct model and configuration.
Sources and technical review
- Afrimart product page: Portable Small Gantry CNC Plasma & Flame Cutting Machine – LGK-120HD, https://afrimart.co.za/product/portable-small-gantry-cnc-plasma--flame-cutting-machine--lgk120hd
- Occupational Safety and Health Administration (general cutting and welding safety reference), https://www.osha.gov/welding-cutting-brazing
