DN-40F
Spot Welding Machine DN-40F (Foot-Pedal) is a 380V resistance spot welder for 2.0 + 2.0 mm low carbon steel sheet welding with production-oriented output and stable welding consistency.
DN-40F combines stronger output, stable control, and 2.0 + 2.0 mm low carbon steel capacity for heavier production-oriented spot welding.
DN-40F Technical Specifications
This page presents the DN-40F model with its supplied spot welding specifications and application data.
Production-oriented spot welding with stronger output control.
DN-40F focuses on stable output, repeatable welding quality, and 2.0 + 2.0 mm low carbon steel performance for production use.
Stable output control for repeatable production welding
DN-40F is presented with stable control characteristics that support consistent spot welding quality in repeated production work.
Nine welding schedules for repeatable setup
The controller can store nine welding schedules for user adjustment according to the supplied pneumatic feature text.
Preheat, welding, and tempering current adjustment
The source text lists preheat current, welding current, and tempering current settings to reduce spatter and improve weld consistency.
Upslope and downslope control for better nugget formation
The provided pneumatic feature section states that current rise and fall functions can reduce spatter and improve weld formation quality.
Fault diagnosis and automatic protection
The supplied controller description includes abnormal-condition detection, automatic output shutoff, and a microcontroller-based control system with strong anti-interference capability.
Where DN-40F fits
DN-40F extends the DN-F range for heavier production work where stronger output and consistent weld quality matter.
Typical work scope from supplied data
- Industrial production spot welding
- Improved welding consistency through pneumatic control
- Low carbon steel sheets at 2.0 + 2.0 mm listed thickness
Key mechanical data from the supplied table
The supplied technical table lists 360 mm arm extension, 60 mm electrode stroke, 4000 N maximum pressure, and 3 L/min cooling water capacity.
Select foot-operated or pneumatic resistance spot welders by welding thickness, pressure method, and production demand.
This spot welding lineup covers DN-F foot-operated models for straightforward manual sheet work and DN-P pneumatic models for more stable pressure, repeatable production welding, and higher-capacity structural applications.
DN-F Foot-Operated Range
- DN-16F, DN-25F, and DN-40F cover simple mechanical operation for light-duty to heavier sheet-metal spot welding.
- These models suit users who prefer direct foot control, straightforward setup, and lower-volume workshop production.
- Choose this group when manual operation and simpler structure are more important than pneumatic cycle efficiency.
DN-P Pneumatic Production Range
- DN-25P, DN-35P, DN-50P, and DN-75P cover pneumatic spot welding for thicker sheet, steadier pressure, and more repeatable daily production.
- Pneumatic models are better suited to regular shop-floor use where welding consistency and operating efficiency matter more.
- Select this group when stable pressure control and higher production demand are part of the working process.
Structural And High-Capacity Models
- DN-100P and DN-160P extend the range for industrial structural and thicker-section spot welding applications.
- DN-160P keeps both supplied thickness references visible because the selection guide and parameter table are not identical.
- Confirm actual thickness requirement, arm extension, rated capacity, and utilities before final model selection.
Verify package scope and application suitability before order confirmation.
Published specifications, standard delivery scope, and accessory ratings are for reference only and may change without notice. Included electrodes, electrode arms, electrode holders, foot pedals, pneumatic components, air-service units, pressure-adjustment assemblies, cooling-water connections, control units, cables, plugs, and other accessories may vary by model, package, and destination market. Before supply, confirm the required resistance spot welding application, input power, rated capacity, duty cycle, workpiece material and thickness, arm extension, available air or cooling-water utilities, and applicable local compliance requirements for the intended application.