Built-in force sensor tracks direct value of the force generated by servo actuator. Force signal may be generated in the digital or analog form (0..10V).
In order to provide additional gun arms fixation when power supply is off, servo actuator may be equipped with a brake preventing arms displacement caused by gravity. Long-armed guns with substantial weight may require this option.
Built-in water cooling circuit enables high performance in the most intense applications with heavy-duty welding cycles (up to 65 welds per minute with 6 kN pressure on the electrodes).
Built-in anti-rotation is applied when C-type welding gun design does not have a linear guide for moveable electrode. Apart from competitors solutions based on hex rod or rod with flats, Diakont solution upholds cylindrical form of the rod, which provides reliable sealing preventing dust, sludge and water ingress.
For applications with increased radial forces affecting the actuator rod Diakont has developed a solution allowing higher side loads of up to 1000 N
Manual drive option for the electromechanical actuator is designed to facilitate set up processes while power is off when welding gun design does not allow to extend/retract the actuator rod by its direct screwing/unscrewing (for example, when the rod is firmly attached to moveable machine mechanisms).
In this case it is possible to perform tuning of the rod position by applying a wrench towards the manual drive nut in the rear part of the actuator housing.
| Model | DA78-A35 | DA78-A310 |
|---|---|---|
| Peak force | 13 000 N | 7000 N |
| Max. speed | 325 mm/s | 650 mm/s |
| Stroke | 150 mm | 150 mm |
| Screw lead | 5 mm/rev | 10 mm/rev |
| Dynamic load rating | 33 500 N | 20 000 N |
| Basic dimensions | 78×78 mm (cross section), 320 mm (length) | 78x78mm (cross section), 320 mm (length) |
| Force repeatability | ±3% | ±3% |
| Base weight | 6.1 kg (with Fanuc encoder) | 6.1 kg (with Fanuc encoder) |
| Protection level | IP65 | IP65 |
| Ambience temperature range | 0 to +50°C | 0 to +50°C |
| Service life | 20+ million weld cycles | 20+ million weld cycles |
| Maintenance | grease adding once in 15 million cycles | grease adding once in 15 million cycles |
| Mounting | front flange / trunnions / side mounting | front flange / trunnions / side mounting |
| Feedback sensor | depends on robot type: resolver or absolute encoder | depends on robot type: resolver or absolute encoder |
| Voltage | 230V or 400V | 230V or 400V |
