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Projection welding machine

Garanterad enhetlig presskraft: våra maskiner för projektionssvetsning

Våra maskiner för projektionssvetsning underlättar felfri svetsning av alla projektioner – oavsett om cirkulära projektioner, bågformade projektioner eller långsträckta projektioner för svetsmutter svets, fläns eller andra komponenter. Grunden för våra maskiners höga prestanda är deras solida, högkvalitativa utförande. Det beror på att för projektionssvetsmaskiner är särskilt viktigt: torsionsfria maskinkroppar är våran bas. Tack vare helt styva, torsionsfria basramar, stålkonstruktion och massiva pressbord med T-slots för montering av svetsfixturen uppfyller NIMAK-maskinerna de höga krav som ställs på projektionssvetsning i alla avseenden.

  1. Individuellt konfigurerbar med modulsystemet
  2. Tillval i växelströmsteknik, i medelfrekvensversion eller som kondensatorurladdningsmaskin
  3. Med pneumatisk, hydraulisk eller servomotorisk enhet, eller tillval: magnetiskDRIVE
  4. Som bords- eller golvversion
  5. För workshops och industri
  6. Utrymmesbesparande C-modul för svetsceller

Länk: magneticDRIVE: The Weldolution

Guaranteed uniform pressing force: our machines for projection welding

Our machines for projection welding facilitate flawless unwelding of all projections – regardless of whether circular projections, arcuate projections or elongated projections on weld nuts, flanges or other components. The basis for the high performance of our machines is their solid, high-quality workmanship. That is because for projection welding machines, particularly important is: torsion-free machine bodies are the meat and potatoes. Thanks to completely rigid, torsion-free base-frames, steel construction and massive press tables with T-slots for mounting the welding fixture, NIMAK machines meet the high demands placed on projection welding in every respect.

  • Individually configurable with the modular system
  • Optionally in alternating current technology, in medium frequency version or as a capacitor discharge machine
  • With pneumatic, hydraulic or servomotor drive, or, optionally: magneticDRIVE
  • As a table-top or floor version
  • For workshops and industry
  • Space-saving C-module for welding cells

Your projection welding machine based on the modular system

Highest quality, fast delivery, attractive terms, individual solutions – with our projection welding machines everything is just right. After all, we manufacture your machine based on the modular system while taking your individual specifications such as pneumatics, control and color into consideration at the same time. That results in the correct mixture of standardization and individuality that gives you advantages in both the quality and cost-effectiveness. We develop, design and manufacture most of the various components of the modular system ourselves. To accomplish that we reap our expertise from more than 50 years of experience. Depending on the welding requirements, we provide you with individually adapted appliances and special tools with which you can easily supplement projection welding machines from NIMAK. For fine and precise projection welding we recommend our table-top projection welding machines. Everywhere that projection machines are demanded in automated cells with only tight space available our C-module, which was developed specifically for this purpose, convinces. Have a talk with our experts. We would be glad to individually consult you.

KHS technology: High-performance for resistance projection welding

Special underlying conditions require special solutions. We have just the right one at hand when your projection welding machine only has severely limited electrical supply lines available onsite: our PowerKES machines with capacitor discharge technology. High-power capacitors are used here which quickly charge up during the welding breaks and quickly discharge while welding. That produces a very high-energy charged welding process and the welding time is very short. Using this capacitor discharge technology during resistance projection welding facilitates connecting very different materials, galvanic and hot-dip galvanized sheets, high-allow steels, grain-refined construction steel, high-strength and multiphase steels as well as steel grades with a high carbon content. During this process, the surrounding materials are spared since the heat development is concentrated solely on the welding point. In part, with the PowerKES versions water cooling can even be omitted: Since energy only needs to be applied in the process for a very short time, the thermal stress is significantly less than in machines with alternating current or medium frequency technology. A servomotor drive makes compressed air superfluous, which reduces the production costs. Whether as a table-top or floor model, the PowerKES convinces with its high performance and low current input.

Extra power for resistance projection welding: magneticDRIVE

You will generate immense force and reach high speed when you equip your projection welding machine with magneticDRIVE. The unbridled power then takes effect with the latest microprocessor-controlled electromagnets. Specifically with capacitor discharge welding machines with their extremely short welding times, a force-locked follow-up is indispensable for low-spatter welding and the best welding results. In contrast to conventional follow-up units, magneticDRIVE provides you the full flexibility and dynamics of an electromagnet. At the same time, the required electrode force, matched force profile and the follow-up characteristics can be perfectly adapted to the welding job through the appropriate control engineering. Find out more about this extra power for projection welding right now!

Pamphlet / Broschyr

Projection welding machines pamphlet


Benefits in an overview:

Individually configurable
You tell us what welding challenges you are facing. Our technicians in the welding lab will search for and find the best solution for you. To do that they perform tests and define the main welding parameters based on the specimens you provided. We then use these insights and our modular system to configure and fabricate your projection welding machine.

Robust and tough
We guarantee the high quality and excellent workmanship of our projection welding plants and all of its processed components. In decades of use they often prove that they are absolutely robust and tough and work reliably and precisely for a long time.

Shorter delivery times, good price-performance ratio
One of the benefits of our modular system for projection welding machines: we can realize machines that are matched to your needs at a reasonable price. Since we manufacture nearly all of the components ourselves and our warehouse is always well stocked, we would be glad to implement for you even with short delivery dates.

Meets all safety regulations
The legislature defined safety regulations for good reason and our projection welding machines comply with them. They also meet the requirements of labor legislation as per Performance Level D.

Areas of Application

Typical applications

Projection welding machines ensure reliable connections in industry and trade. Including these sectors:

  • Automobile production
  • Transportation means manufacturing
  • Household goods production

Facts and Figures

At a glance: important technical details

Floor projection welding machines with alternating current or medium-frequency technology:

  • Water cooled
  • Controllable electrode force (including electrode force and main switch)
  • With attached compressed-air maintenance unit
  • Separately adjustable cooling-water circuits with flow rate and temperature indicator
  • Two-hand start console on the press table or separate stands
  • Pneumatically actuated tandem cylinder with outstanding follow-up characteristics
  • Throttle valve for bounce-free electrode placement

Table-top projection welding machines with alternating current or medium-frequency technology:

  • Water cooled
  • Single stroke cylinder
  • With attached compressed-air maintenance unit
  • One cylinder chamber can be switched off
  • With machine table and lateral storage shelves
  • Two-hand start console on the press table protruding

Floor and table-top projection welding machines with capacitor discharge technology

  • Welding head driven by a servomotor, alternatively in pneumatic or hydraulic version
  • Fuse protection 16–63 A
  • Capacitor charge time 0.3–2.0 seconds
  • Extremely fast increase in current
  • Minimum heat development, that means
    … low electrode wear
    … no annealing of the materials
    … operation without cooling system
  • Clearance-free precision guide
  • Mechanically decoupled follow-up unit
  • Galvanically silver-plated secondary circuit
  • Torsion-resistant steel structure in C-design; alternative: portal structure
  • Control console with industrial PC and user-friendly menu guide

Technical Data

Overview of types

Welding machines in alternating current or medium-frequency technology

Floor units Table-top units
Type PMP 5-1 / Combi BMP 6 BMP 20 TBMP 5
Nominal output at 50 % duty ratio (in kVA) 60 80 – 160 80 – 250 36
Max. welding current (in kA) 22 up to 52.8 up to 84 26
Electrode force (in daN) 300 – 500 140 – 1,600 170 – 3,000 40 – 550
Electrode stroke (in mm) 60 100 100 75
Projection (in mm) 350 + 80 250 – 550 250 – 550 200

Welding machine with capacitor discharge technology

Type TableKES PowerKES 5 PowerKES 10 PowerKES 20 PowerKES 100 PowerKES 200
Max. welding current (in kA) up to 700 up to 700 up to 700 up to 700 up to 700 up to 700
Electrode force (in daN) up to 200 up to 200 up to 200 up to 200 up to 200 up to 200
Welding power (in WS) max. 8,000 max. 16,000 max. 12,000 max. 24,000 max. 42,000 max. 140,000
Electrode forces (in kN) 5.5 16 20 30 100 200
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