Owning a R&D team of more than 20 engineers. and a 18000 sq.m factory , which guarantees that we can offer customers the most professional welding advice and after-sales service.
And we have our own overseas technical service teams in many countries in Southeast Asia and South America to provide customers with on-site installation and maintenance services.(Please contact us to ask if there is a technical team in your country)

The long arm spot welding machine is our DTN series fixed point projection spot welding machine, customized with a long welding arm for welding special workpiece. The spot welder is a dual purpose welding machine produced by our company, mainly used for welding low-carbon steel, stainless steel, and some non-ferrous metals. It can also achieve welding between plates, between plates and projection welding nuts and bolts.
Model | 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 At 50% (KVA) | 40 | 63 | 80 | 100 | 125 | 160 | 200 |
Rated primary power (V) | 380 | 380 | 380 | 380 | 380 | 380 | 380 |
Secondary Voltage (V) | 5.2 | 6.7 | 7.9 | 8.3 | 8.6 | 9.1 | 10.6 |
Rated frequency (HZ) | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 | 50/60 |
Max.Short Circuit Current (KA) | 14 | 15 | 16 | 18 | 20 | 28 | 34 |
Max. weld power (KVA) | 62 | 86 | 170 | 280 | 300 | 330 | 410 |
Throat (MM) | 500 | 500 | 630 | 630 | 630 | 630 | 630 |
Max.Froce at electrodes (N) | 6000 | 6000 | 10000 | 10000 | 10000 | 12000 | 12000 |
Working stroke (MM) | 20 | 20 | 30 | 40 | 40 | 50 | 50 |
Electrodes tlp (MM) | Φ13*45 | Φ13*45 | Φ16*45 | Φ16*45 | Φ16*45 | Φ20*45 | Φ20*45 |
Arms (MM) | Φ50*150 | Φ50*150 | Φ80*220 | Φ80*220 | Φ80*220 | Φ80*220 | Φ80*220 |
Projection Clamping Plate (MM) | 125*125 | 125*125 | 200*200 | 200*200 | 200*200 | 200*200 | 200*200 |
Max.Welding Capaciry A3 steel (MM) | 2.5+2.5 | 3+3 | 4+4 | 4.5+4.5 | 5+5 | 5+5 | 6+6 |
Cooling water flow (L/min) | 6 | 6 | 8 | 8 | 8 | 10 | 10 |
(1) The upper electrode is pressurized by air cylinder, and the pressure adjustment is convenient and accurate. The welding machine is equipped with a special air tank for standby;

The Upper Electrode
The upper electrode moves vertically up and down in the linear guide, with high precision in repeated positioning, thus ensuring accurate welding points.

The Pressure Component
The descent and ascent speed of the pressure head can be adjusted arbitrarily, which alleviates the pressure impact on the workpiece and reduces noise.

Aas Storage Tank
Backup dedicated gas storage tank for welding machine, which is conducive to reducing welding pressure fluctuations and ensuring stable welding force.







