DN-75P
Spot Welding Machine DN-75P (Pneumatic) is a 380V pneumatic resistance spot welder for heavy-duty fabrication and 3.0 + 3.0 mm low carbon steel welding.
DN-75P combines stable pressure control, programmable welding settings, and heavier fabrication-oriented spot welding capability.
DN-75P Technical Specifications
This page presents the DN-75P model with its supplied pneumatic spot welding specifications and application data.
Heavier pneumatic spot welding for fabrication work.
DN-75P is positioned for heavier fabrication, stable pressure control, and repeatable 3.0 + 3.0 mm low carbon steel spot welding performance.
Constant current and constant voltage selection
The supplied pneumatic feature section states that the controller can select constant current or constant voltage control through parameter settings and sampled signal comparison.
Nine welding schedules for repeatable setup
The source text states that the controller can store nine welding schedules for user adjustment, helping support repeatable production work.
Preheat, welding, and tempering current adjustment
The supplied description lists adjustable preheat current, welding current, and tempering current to help reduce spatter and improve post-weld performance.
Current upslope and downslope for better nugget formation
The feature text states that slow rise and slow fall current functions help reduce spatter and improve weld formation.
Fault diagnosis and automatic protection
The supplied controller description includes abnormal-condition detection, automatic output shutoff, and a microcontroller-based control platform with strong anti-interference capability.
Where DN-75P fits
DN-75P supports heavier fabrication demands where stronger pneumatic output and repeatable weld quality are both important.
Typical work scope
- Heavy-duty fabrication spot welding
- Production-oriented pneumatic pressure control
- Low carbon steel sheets at 3.0 + 3.0 mm listed thickness
Key mechanical data from the supplied table
The supplied technical table lists 460 mm arm extension, 60 mm electrode stroke, 6280 N maximum pressure, and 4 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.