Chengdu Xinwei Welding Technology Co., Ltd.
| Payment Terms | D/A,L/C,D/P,T/T,Western Union |
| Delivery Time | 25-45 working days |
| usage | Spot Welding |
| After-sales Service Provided | Free spare parts, Field installation, commissioning and training |
| Warranty of core components | 1 Year |
| Product Name | Precision Long Arm Spot Welding for Extended-Reach Applications |
| Feature | projection resistance long arm spot welding machine |
| Packaging Details | wooden box |
| rated duty cycle | 50% |
| dimensions | 900mm*1700mm*2100mm |
| Supply Ability | 10 sets per month |
| rated capacity | 40-200KVA |
| After Warranty Service | Video technical support, Online support and Spare parts |
| weight (kg) | 550 KG |
| Brand Name | Xinweihan |
| Certification | CE |
| Place of Origin | Sichuan, China |
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Product Specification
| Payment Terms | D/A,L/C,D/P,T/T,Western Union | Delivery Time | 25-45 working days |
| usage | Spot Welding | After-sales Service Provided | Free spare parts, Field installation, commissioning and training |
| Warranty of core components | 1 Year | Product Name | Precision Long Arm Spot Welding for Extended-Reach Applications |
| Feature | projection resistance long arm spot welding machine | Packaging Details | wooden box |
| rated duty cycle | 50% | dimensions | 900mm*1700mm*2100mm |
| Supply Ability | 10 sets per month | rated capacity | 40-200KVA |
| After Warranty Service | Video technical support, Online support and Spare parts | weight (kg) | 550 KG |
| Brand Name | Xinweihan | Certification | CE |
| Place of Origin | Sichuan, China | ||
| High Light | point welder pneumatic ，pneumatic projection welder ，aluminum point welder | ||
The Xinwei DTN Long Arm Spot Welding Machine is purpose-engineered for manufacturers who need reliable, repeatable resistance welding on workpieces that standard machines cannot reach. Designed as an extended-arm variant of our proven DTN Series Stationary Projection/Spot Welders, this machine solves the core challenge of welding deep-draw, oversized, or irregularly shaped components — such as fan guards, wire cages, enclosures, and structural frames — without repositioning or manual intervention.
The customized long arm design allows welding electrodes to access deep cavities and wide-span workpieces. For fan guard and cage manufacturers, this means single-pass welding of multiple connection points without flipping or rotating the part — reducing cycle time and eliminating alignment errors caused by re-handling.
The pneumatic electrode force system delivers uniform, adjustable pressure across every weld cycle. Unlike manual or spring-loaded systems, pneumatic control ensures the same squeeze force on every joint, directly translating to consistent nugget formation and predictable weld strength across high-volume production runs.
The DTN Long Arm handles low-carbon steel, stainless steel, and select non-ferrous metals including aluminum. For manufacturers producing mixed-material assemblies — such as steel fan guards with aluminum hubs — this versatility eliminates the need for separate welding stations, reducing capital investment and floor space requirements.
The machine supports both standard spot welding (sheet-to-sheet) and projection welding (sheet-to-nut, sheet-to-bolt). This dual capability means a single machine can handle both structural assembly and fastener integration — consolidating two processes into one workstation.
| Industry | Typical Workpiece | Material |
|---|---|---|
| HVAC and Ventilation | Fan guards, air grilles, ventilation cages | Low-carbon steel, aluminum |
| Automotive Components | Seat frames, bracket assemblies, heat shields | Stainless steel, mild steel |
| Appliance Manufacturing | Washer/dryer drums, oven racks, microwave enclosures | Steel wire, sheet metal |
| Industrial Shelving and Storage | Wire cages, rack systems, display fixtures | Steel rod, wire mesh |
| General Fabrication | Custom frames, enclosures, structural assemblies | Mild steel, stainless steel |
The DTN Long Arm Spot Welder operates on the resistance welding principle: high-current electricity passes through copper electrodes into the workpiece, generating localized heat at the material interface due to electrical resistance. When the material reaches its plastic state, pneumatic pressure forges the joint, creating a solid-state metallurgical bond without filler metal. The extended arm maintains precise electrode alignment over the full reach distance, ensuring current delivery and pressure remain consistent regardless of weld position along the arm span.
| Parameter | DN-40 | DN-63 | D(T)N-80 | D(T)N-100 | D(T)N-125 | D(T)N-160 | D(T)N-200 |
|---|---|---|---|---|---|---|---|
| Rated Power @50% (KVA) | 40 | 63 | 80 | 100 | 125 | 160 | 200 |
| Rated Primary Voltage (V) | 380 | ||||||
| Dimensions (mm) | 900 x 1700 x 2100 | ||||||
| Weight (kg) | 550 | ||||||
| Rated Duty Cycle | 50% | ||||||
The DTN Long Arm series supports customized arm lengths based on your workpiece dimensions. Contact us with your specific reach requirement for a tailored solution.
Resistance welding of aluminum to steel (dissimilar metals) is challenging due to differing melting points and the formation of brittle intermetallic compounds. We recommend discussing your specific material combination with our engineering team for feasibility analysis.
Each machine ships with one set of standard copper electrodes. Custom electrode geometries for your specific workpiece can be designed and manufactured by our in-house tooling team.
Our pneumatic control system combined with precision-machined electrode holders ensures consistent electrode force and alignment. Each machine undergoes weld-sample testing before shipment, with documented parameter settings for your reference materials.
Send us your workpiece drawings or samples for a free welding feasibility test. Our engineering team will evaluate your application and recommend the optimal DTN Long Arm configuration, including electrode design, arm length, and power rating.
Send Drawing | Request Welding Test | Get Solution
Company Details
Business Type:
Manufacturer
Year Established:
2003
Total Annual:
$35000000-$50000000
Employee Number:
70~95
Ecer Certification：
Verified Supplier
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