Engine welder series EW-230 lithium energy storage welder | 21 degree electric 230a high current zero noise maintenance-free replacement gasoline welder/engine welder series EW-230 Lithium Battery Welder | 21kWh Storage 230a Output – Zero Noise, Maintenance-Free

Product Overview
ENGINE WELDER series EW-230 is a Beijing Engine Welder Technology Co., Ltd. It integrates a large lithium battery pack with inverter welding technology — no engine noise, exhaust or tedious maintenance. Ideal for oil & gas pipelines, emergency repair and field construction where no grid power exists or silent operation is required.

【Key Advantages】

  • Zero fuel consumption, less money: It only consumes about 21 degrees of electricity for 9 consecutive hours a day, costs about 15 yuan (based on 1 yuan/unit), and costs only 375 yuan for 25 days per month, which is more than 4,000 yuan per month compared to gasoline welding machines.

  • No noise, eco-friendly and comfortable: Very low noise (< 5 dB), no disturbance, suitable for sensitive environments such as night construction, hospital surroundings, residential areas, etc.

  • Maintenance-free, effortless: Ternary lithium battery/lithium iron phosphate battery is optional, the cycle life is > 1000-2000 times, the service life is 5-10 years, there is no need to regularly change the oil, spark plugs, etc.

  • Constant current output, stable welding: Constant output of voltage and current, beautifully shaped welding joint, supporting cellulose electrode, low hydrogen alkaline electrode, stainless steel electrode and simple argon arc welding.

  • Powerful AC output: Welding can also provide 220V/2000W pure sine wave AC power to power angle grinders, lighting, water pumps and other equipment.

  • Real-time monitoring, intelligent management: The digital display displays the voltage, current, and remaining power in real time; supports remote monitoring (optional), and grasps the status and position of the equipment.

  • Easy charging: Fast charging for 4-5 hours, charging at night for daytime use without delay.

I Main technical parameters

Item Specs
Model EW-230
Ємність акумулятора 21kWh NCM / 11.5kWh LiFePO4 battery (optional)
Maximum welding current 230A
No-load voltage 75±8V
Welding machine rated power 5.6kW
AC output 220V / 2000W
Applicable welding electrode Φ2.0~5.0mm (cellulose, low hydrogen alkaline, stainless steel)
Long-term Use Capability Φ2.5 electrodes: 290–400 rods weldable at 70A
Charging time Fast charging for 4-5 hours (lithium ternary)
Temperature for operating enviorment -20°C ~ 65°C (lithium iron phosphate)
N.W. 130kg
Dimensions 920*615*740mm (including wheels)

【Typical Applications】

  • Small and medium bore oil and gas pipeline welding (no grid in the field)

  • Municipal rescue, emergency repair construction

  • Infrastructure operations in mines, tunnels, remote areas

  • Hospitals, schools, residential neighborhoods that require mute construction

[Customization and Service]
This device is a customized product. Battery capacity, charger specifications, etc. can be selected according to needs. For specific quotes, please call:86-010-86468776,Mobile/WeChat:13521628344。

 

【Product Overview】
The ENGINE WELDER Series EW-230 is an industrial-grade lithium battery welding power station provided by Beijing Engine Welder Technology Co., Ltd. This unit integrates large-capacity battery storage with inverter welding technology – eliminating the noise, emissions, and maintenance headaches of traditional engine-driven welders. Ideal for oil & gas pipelines, emergency repairs, and remote field operations where grid power is unavailable or quiet operation is required.

【Key Advantages】

  • Zero Fuel, Maximum Savings: A 9-hour workday costs only about 15 kWh of electricity – roughly $2.10 (at $0.14/kWh), saving over $400/month compared to a gasoline welder.

  • Silent Operation: Runs at <5dB – no noise complaints, perfect for nighttime work, hospitals, residential areas, and other noise-sensitive environments.

  • Maintenance-Free: Choose between LiFePO₄ (2,000+ cycles) or ternary lithium (1,000+ cycles) batteries – 5-10 year lifespan with no oil changes, spark plugs, or engine overhauls.

  • Stable Constant-Current Output: Delivers smooth, consistent voltage/current for excellent weld bead appearance. Supports cellulose, low-hydrogen basic, stainless steel electrodes, and basic TIG.

  • Simultaneous AC Output: Provides 220V/2000W pure sine wave power while welding – run grinders, lights, pumps, and other tools simultaneously.

  • Smart Monitoring: Digital display shows voltage, current, and remaining battery level. Optional remote monitoring tracks equipment status and location in real time.

  • Convenient Charging: Fast charge in 4-5 hours – charge overnight and work all day without interruption.

【Key Specifications】

Parameter Specification
Model EW-230
Battery Capacity 15kWh (ternary Li) / 11.5kWh (LiFePO₄) – optional
Max Welding Current 230A
Open-Circuit Voltage 75±8V
Welding Rated Power 5.6kW
AC Output 220V / 2000W
Electrode Diameter Φ2.0~5.0mm (cellulose, basic, stainless)
Runtime 290-400 electrodes (Φ2.5mm @70A) per charge
Charging Time 4-5 hours fast charge (ternary Li)
Operating Temp. -20℃~65℃ (LiFePO₄ version)
Net Weight 130kg
Dimensions 920*615*740mm (including wheels)

【Applications】

  • Small-to-medium diameter oil & gas pipeline welding (off-grid)

  • Municipal emergency repairs and disaster recovery

  • Mining, tunnel, and remote infrastructure projects

  • Noise-sensitive sites: hospitals, schools, residential areas

【Customization & Contact】
This is a customizable product – battery type, capacity, and charger options can be tailored to your needs. For pricing and configuration, please contact: 86-010-86468776 (Mobile/WeChat: 13521628344).

 

Full online purchase (cart & checkout) is available on the Chinese product page, or contact international@denohgroup.com for a quotation.