Ground Mounted 200-5000kg 7th Axis Robot Linear Track for Welding Automation

Ground Mounted 7th Axis Robot Linear Track (GBS-01-W Series)

The GBS-01-W series is a ground mounted 7th axis robot linear track that turns a fixed industrial robot into a travelling one. Contractors specify this ground mounted 7th axis robot linear track when an existing arm must cover several welding stations without buying a second robot. The carriage rides on a machined guide rail with a hardened gear rack, driven by an AC servo motor through a 1:10 planetary reducer, and is commissioned as an external axis of the robot controller. Five load classes cover 200kg, 500kg, 1500kg, 3000kg and 5000kg moving mass, so the same welding robot external axis platform fits a small arc welding cell and a heavy palletizing line. Strokes are built from standard sections of no more than 5000mm each, which keeps transport and site handling practical while still allowing runs far beyond 20 metres. Repeat positioning accuracy of ±0.05mm is maintained across the whole travel of the welding robot external axis, letting the robot weld, spray or handle along a straight path without re-teaching at every station.

Technical Specifications

Why Buyers Standardise on This Ground Rail

• One platform, five load classes: on this ground mounted 7th axis robot linear track the 200-5000kg range means spare parts and programming logic stay consistent when a line is expanded.
• Predictable accuracy: ground rack and preloaded roller blocks on the welding robot external axis hold ±0.05mm over the full stroke, so welding seams stay uniform.
• Simple site assembly: sections of 5000mm or less are joined with dowelled interfaces and adjusted by foot plates, cutting installation time.
• Protected motion: brush seals, hard limits with buffers and a grounded sliding surface keep spatter and dust out of the drive.
• Robot-agnostic: on this ground mounted linear track, mounting plates are drilled for ABB, KUKA, FANUC and YASKAWA bases, and the axis is added in the robot controller.

Typical Applications

• Long steel structure and ship hull welding along seams of 10 metres and more
• Palletizing where one robot serves several pallet positions
• Machine tending across a row of CNC centres
• Painting and coating of large panels with constant carriage speed
• Inspection and measuring with vision or laser sensors

Frequently Asked Questions

Q: How do I choose between the 500kg and 3000kg class?
Add the robot body, mounting plate, dress pack, end effector and fixture weight, then allow a 20% margin. Most six-axis robots up to 3200mm reach with an average welding package sit in the 1500-3000kg class, and we will check that figure against your 7th axis robot linear track layout.

Q: Can the 7th axis robot linear track be extended later?
Yes. Because the rail is modular, additional sections can be aligned and bolted to the existing run, and the controller travel limits are re-scaled during commissioning.

Q: How is ±0.05mm repeatability verified before shipment?
Every welding robot external axis is assembled and run in at our Shanghai workshop, where the carriage is cycled over the full stroke and positioning is checked with a laser interferometer; the report ships with the unit.

Q: What foundation does a ground mounted linear rail need?
A level concrete floor able to take the anchor loads, chemical anchors, 0-45°C ambient, humidity below 75% RH without condensation and vibration under 0.5G.

Manufacturing and Service

Gongboshi Robot Technology has built robot external axes and positioners since 2016 for aerospace, nuclear, chemical, automotive and new-energy projects, with more than 100 engineers in house. Each ground mounted 7th axis robot linear track is tested as a complete axis package. Standard strokes ship in 20-40 working days, custom lengths and special colours are quoted after drawing approval, and every unit carries a 12-month warranty with remote commissioning support. Share your robot model and workpiece drawing, and our team will size the ground mounted 7th axis robot linear track and the welding robot external axis and confirm the foundation plan before production.