DA 78
Ultralight and compact welding servo actuator
DA78s are roller screw electric actuators specially designed for ultralight welding guns. With the minimal weight of only 6.1 kg, these actuators can generate high forces of up to 13 kN.
DA78 has shown excellent performance in those projects of car body manufacturers, where workshop space is limited requiring high equipment density.
DA78 has shown excellent performance in those projects of car body manufacturers, where workshop space is limited requiring high equipment density.
Documents
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 | 78x78 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
|
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.
Usually, during the gun assembly, rod extension and retraction can be performed by screwing/unscrewing it (except for the actuators with a built-in anti-rotation). A manual drive may be needed when it’s necessary to manually retract/extend rod without rotation.
For applications with increased radial forces affecting the actuator rod Diakont has developed a solution allowing higher side loads of up to 650N.
Robot Controller Supply Voltage | Robot Controller Model | Robot Control Software | |
ABB | 400 VAC | IRC 5 | Manual tuning is available (contact Diakont). Including in ABB motor list can be done upon request |
FANUC | 230 VAC (40A or 80A drive) |
R-30iA R-30iB R-30iB Plus |
Manual tuning is avaliable (contact Diakont). ID 49589 Manual tuning is available (contact Diakont) from V9.10P/31 for 40A |
FANUC | 230 VAC |
R-30iB R-30iB Plus R-30iB Plus |
from V8.30P/58 from V9.10P/21 from V9.30P/25 |
KUKA | 400 VAC KSP/KPP 40A (for other voltages contact Diakont) |
KR C4 | ServoGunBasic avaliable for KSS 8.3 and higher (contact Diakont) |
Yaskawa | 230 VAC | YRC-1000 |
Including in Yaskawa motor list can be done upon request |
KUKA | 400 VAC KSP/KPP 40A (for other voltages contact Diakont) |
KR C4 | ServoGunBasic avaliable for KSS 8.3 and higher (contact Diakont) |
Yaskawa | 230 VAC | YRC-1000 |
Including in Yaskawa motor list can be done upon request |
Kawasaki | 230 VAC | E52G-A021, E42 (series E2X, E3X, E4X, E5X) |
Including in Kawasaki motor list can be done upon request |
Comau | 400 VAC | C5G, C5G Plus |
Including in Comau motor list can be done upon request |
Nachi | 230 VAC | FD11 controller with ROX xx2x drive (any ROX drive with third digit = "2") | Including in Nachi motor list can be done upon request |
Hyundai | 230 VAC | Hi5a-S | Including in Hyundai motor list can be done upon request |
Customized solutions
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