Repeatability starts under the robot
A robot is only as repeatable as the pedestal it is bolted to. The top plate is machined flat after welding, and the anchor pattern is drilled to the robot's foot print to the catalogue dimensions.
The pedestal itself is sized for the moment at full reach with payload. Give us the robot model and the working envelope and we will confirm the section sizes, or build to your drawing if you have already run the numbers.
On robots that cycle fast, the pedestal stiffness matters more than strength. A pedestal that is strong enough to hold but springy will cost cycle time because the robot has to decelerate into position instead of snapping to it. We rib the inside for stiffness.
Stiffness, not just strength
A pedestal can be strong enough to hold and still too springy to give good cycle times. The rib pattern inside is there for stiffness, and the anchor bolt layout matters as much as the steel. We weld the ribs with full penetration at the corners that carry load.
Cable and service cutouts are positioned clear of the load path. Tell us where your dress pack runs and we keep the steel out of its way.
The anchor bolts are what hold the pedestal down under the moment load. The pedestal design includes the bolt pattern, the bolt grade and the embedment depth, so the civil engineer can detail the foundation correctly.
Foundation interface and grouting
The base plate of the pedestal is drilled for anchor bolts and has grout holes so the void under the plate fills. Without grout the pedestal rocks on the high points of the concrete.
The underside of the base plate is machined flat, not just the top. Both faces need to be flat for the grout to do its job.
On heavy robots, above 500 kg payload, we supply a template for the anchor bolt positions so the civil contractor sets the bolts in the right place before the concrete is poured. The template is a steel plate with the holes drilled, held in position during the pour.
Product attributes
| Material | Q235B / Q345B carbon steel |
|---|---|
| Top plate | Machined flat after welding, ribbed underneath for stiffness |
| Sizing | Moment-rated for robot at full reach with payload |
| Features | Anchor pattern to robot footprint, service cutouts clear of load path |
| Base plate | Machined both faces, grout holes, anchor sleeve positions |
| Template | Anchor bolt template for civil contractor, on heavy robots |
| Finish | Shot blasted Sa2.5, anti-rust primer |
| Certificates | ISO 9001, ISO 3834, AWS D1.1 |
| Lead time | Samples 12 to 18 days, batch 25 to 40 days |
Frequently asked questions
I know the robot model. Can you size the pedestal?
Yes. From the robot model we get the weight, the moment at full reach, the anchor pattern and the footprint. We size the pedestal section for the moment with a safety factor, rib the inside for stiffness, and drill the top plate to the robot footprint.
Why does stiffness matter more than strength on a robot pedestal?
A pedestal that is strong enough but springy will flex under the robot's moment load. The robot has to decelerate into position instead of snapping to it, which costs cycle time. A stiff pedestal lets the robot run at full speed. The rib pattern inside is what gives the stiffness, not the steel thickness alone.
Do you provide a template for the anchor bolts?
On heavy robots above 500 kg payload, yes. The template is a steel plate with the anchor holes drilled, held in position during the concrete pour so the bolts end up in the right place. Without a template the civil contractor has to measure and set each bolt by hand, and they are usually off by a few millimeters.
Where do the cable cutouts go?
Wherever your dress pack runs. Tell us the routing and we position the cutouts clear of the load path. The cutouts are reinforced with a welded collar so they do not weaken the pedestal section.
Can you build to a specific stiffness specification?
Yes. If your spec calls for a natural frequency above a certain number, or a deflection limit at a specific moment, we size the section and ribs to that number. Send the spec and we confirm whether the section you have in mind will meet it.
Working with us
We are a 7,000 square meter fabrication shop in Qingdao with 20 years of export experience, mostly to Australia. Welding runs under ISO 3834 with welders qualified to AWS D1.1, and quality is documented to ISO 9001 from material certificate to final dimensional report. Drawings and specifications stay confidential. Robot model number is the fastest way to start. A drawing works too.
Hot Tags: welded robotic arm support pedestal | machined top plate, moment rated, iso 9001, China welded robotic arm support pedestal | machined top plate, moment rated, iso 9001 manufacturers, suppliers, factory
