Ergonomic Tool Arms (ETA): Model Ordering Code
How to Order an ETA Smart Arm
All Smart Arm configuration model numbers will consist of at least three parts; the frame, tool holder, and encoder. An SP prefix is used only when an arm is customized or has non-standard components. The Options suffix is used when an arm is configured with any of the available options or accessories.
An example model number is shown below.
EL815-UV-IOSA-OM
This means they want:
The EL815 heavy duty, full reach frame
The UV- Universal Vertical Tool Holder
The IOSA- I/O-Link Smart Arm Encoder
They optioned the OM- Overhead Mount
Frames
EL306
Standard Duty, Short Reach
Maximum Reach 24" (610mm)+
Vertical Travel 10.3" (261mm)
Maximum Tooling Weight 6 lbs (2.7 Kg)*
Maximum Vert Torque 550 in-lbs (62 Nm)
Maximum Horz Torque 275 in-lbs (31 Nm)
EL1025
Extra Heavy Duty, High Weight, Full Reach
Maximum Reach 36" (915mm)+
Vertical Travel 17.6" (447mm)
Maximum Tooling Weight 25 lbs (11.4 Kg)*
Maximum Vert Torque 1,100 in-lbs (125 Nm)
Maximum Horz Torque 600 in-lbs (68 Nm)
Tool Holders
Any ETA Tool Holder will mount on any ETA Torque Arm. This enables you to repurpose your arm to drive fasteners with different tools or in different attitudes (direction of drive). Please note that while any tool holder on this page will fit on any frame size, it might not always be practical due to weight limitations of the arm or the torque output of your tool. Consult with us, referring to your arm’s Serial Number, if you aren’t sure about repurposing your ETA arm for your new application. The Serial Number is located on the Forearm’s nameplate.
TOOL HOLDER MOUNTING DETAILS
At the tool end of every standard ETA Forearm is a through hole with 1/4 NPT threads top and bottom and also a threaded 1/4-20 blind hole on the bottom edge, 1.0″ on center behind the NPT hole. All of our holders have a 1/8″ deep pocket that the Forearm sits into. A 3/8″ cap screw with a hardened flat washer drops down through the 1/4 NPT hole in the Forearm and threads into the holder body. A 1/4-20 cap screw comes up through the holder into the blind hole in the bottom of the Forearm. At any time the holder can be removed and replaced with a different holder.
N- No Tool Holder
ST61- For Atlas Copco Inline Tools
X/Y Encoders
These encoders are position tracking sensors places at the shoulder and elbow joint of the arm. They measure the exact angle or extension of each joint. A connected computer or PLC uses this data to calculate the precise X and Y coordinates of the tool tip in real time.
IOSA- IO-Link Smart Arm
XXSA- Encoder Ready Smart Arm
Options
B/C axis- Pitch and yaw sensor
Picture Diagram:

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