
Keep Your Line Running
About Older OTC DAIHEN / Miller Welding Robots
OTC DAIHEN has a long and interesting history in the North American market, which spans two companies and three decades lifetime. In order to offer support to our customers who still use some of our older models of robots, we would like to clarify the names the robots have been called in the past.
Robot Naming Conventions
In the 1980's and early 1990's, OTC DAIHEN manufactured robots for Miller as an OEM (Original Equipment Manufacturer). While the robots had their own model numbers and names in Japan, Miller chose to assign their own model numbers (prefixed by the letters "MR") for the North American market. As Miller no longer supports robots manufactured during this era, the following chart providing names here for reference purporses.
In 1996, OTC DAIHEN started selling robots under the name "Dynamic Robots", also referred to as the DR-series. The DR series was later succeeded by the EX series, followed by the AX series, and now AII series.
Manual & Specification Requests
Looking for manuals and specifications for older OTC DAIHEN and Miller robots? Please contact our service department and we can help.
Robot Cross Reference Chart
| OTC DAIHEN Robot Name | American Market Name | Robot Controller |
| LKz | MRK-5 | OSACOM5000 |
| G01 | MRH MRH-5 |
OSACOM6800 ("C1") |
| V01 | MRV MRV-6 |
OSACOM6800 ("C1") |
| G01S | MR-1200 MRH-5 2 DR-1200 |
OSACOM8700 ("C2") |
| V01S | MR-2200 MRV-6 2 |
OSACOM8700 ("C2") |
| EG | MR-1000 DR-1000 |
OSACOM Alpha ("α") |
| EV | MR-2000 DR-2000 |
OSACOM Alpha ("α") |
| ROBOLAND S/R | DR-500 DR-501 DR-502 |
OSACOM ROBOLAND Alpha ("α") |
| AG03 / BG03 | DR-3000 DR-3200 |
OSACOM DR or OSACOM DR2 |
| AV06 / BV06 | DR-4000 DR-4200 |
OSACOM DR or OSACOM DR2 |
| AV06L / BV06L | DR-4000L DR-4200L |
OSACOM DR or OSACOM DR2 |
| EX-V6, EX-V6L, EX-V16 | EX-V6, EX-V6L, EX-V16 | EX Controller |
| AX-H3, AX-V4, AX-V6, AX-V6L, AX-V16 | AX-H3, AX-V4, AX-V6, AX-V6L, AX-V16 | AX Controller |
Equipment Repair Information

- All repairs are done by certified OTC DAIHEN service technicians
- Contact our service coordinator for any further details for repair
- Details are important! Please be prepared to provide error codes, symptoms of failure and serials numbers, as this information will help us determine the root cause of the failure.
- Return Authorization (RA) forms can be downloaded via this page.
- An RMA# must be obtained prior to shipping any equipment in for repair.
