Robot Payload Quick Check

Will a FANUC robot carry your tool? Specs for 639 models, straight answers.

Robot model

Newer models use FANUC's updated naming: payload–reach–generation. Example: 50-26D = 50 kg payload, 2.6 m reach, D-series arm (same robot as the M-710iD/50M).

Tool weight — everything on the faceplate (lb)

Gripper + adapter plate + part + hoses riding on it. When in doubt, round up.

Center of gravity — from faceplate center (in)

Z out

A rough balance-point estimate is fine — the distance matters more than the direction.

Tool size

Wide (X) in

Deep (Y) in

Tall (Z) in

Used to estimate how the weight is spread out.

Usage

"Always points down" (typical machine tending / pick-and-place) removes most of the tipping load and lets a robot carry more. Only pick it if the wrist truly never tips the load sideways.

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Enter a tool weight to see results.

Weight—

Leverage (tipping load on the wrist)—

Swing effort (whipping the tool around)—

Grows fast with distance — moving the CG closer helps more than cutting weight

Engineer numbers (matches the FANUC sheet)

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Built from FANUC Payload Checker V8.05 data. Doesn't cover equipment mounted on the arm itself (dress packs, valve packs). Final sign-off should still run through the official FANUC file — or send us the job and we'll do it for you.

Result Ready

See your verdict

Enter your work email and we'll unlock the result — plus the raw moment and inertia numbers your FANUC rep will ask for. No spam, no drip campaign.

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