12′ X 12′ column and boom welding manipulator

welding manipulator contact request


Our manipulators, including MN12-200, play a significant role in the automated welding processes of large vessels and other workpieces. Automatic welding heads (typically submerged arc) are designed to be mounted on a stiff and nearly vibrationless boom and moved to the desired height with powered columns

LJ’s MN12-200 comes with a modular construction that ensures 360-degrees radial accessibility to welding heads, covering vast areas in the shop. It is ideal for hard automation welding solutions and offers an advanced user interface that is easy to use. MN12-200 is a crucial tool for applications that involve automated welding of pipes and vessels. Moreover, MN12-300 maximizes productivity and efficiency. Lastly, it also reduces rework and scrap, and the final results aren't dependable on the skills of the operator since the whole process is automated. 

Our MN12-300 has a loading capacity of 500 lbs at boom end, boom stroke of 132" and column stroke of 144". This machine has built-in column/boom welding seam trackers with laser vision tracking and a laser sensor. It also has camera systems that monitor and record all open arc welding processes including MIG, MAG, TIG, Plasma, laser and stick welding. We also offer a wide selection of accessories and options available depending on the customer's request and need. As far as the welding source options are concerned, we offer submerged arc (SAW), MIG, or a solution to customer’s specification. We also offer control upgrades including full integration to LJ welding positioners or turning rolls through HMI touchscreens and master PLC.

Looking for a welding positioner with different technical parameters? Make sure to check out our MNC4-100, MNP-600, MN6-100, MN9-300, or MN16-100.


Load Capacity (at boom end) 500 lbs
Boom Stroke 132"
Column Stroke 144"
Boom Traverse Speed Range 5–120 in/min
Mast Traverse Speed Range 5–120 in/min
Travel Car Speed 5–120 in/min
Power Requirements 480 V, 3-ph
Equipment Mass Variable

Welding Power Source Options: Submerged Arc (SAW), MIG, or to customer specification
Input Power Options: as per standard spec or to customer requirements
Upgrade Controls: full integration to LJ welding positioners or turning rolls through HMI touchscreens and master PLC

Customizable with full integration capabilities for most existing mainstream welding equipment