Product Description
The KR SightLink E3040 Square Tube Coupler, 2020 Extension Set creates a short rigid side rail from a 30x30 or 40x40 machine-frame extrusion. One coupler body is designed to serve both profile sizes, then a KUPO-provided holder carries a 20x20 extrusion arm for downstream camera, light, sensor, cable, or small-plate modules.
This is structural extension hardware, not a direct camera mount. The set moves a new 20x20 mounting rail away from the main frame so the application can place its actual payload mount where it has better clearance.
The current product direction keeps the coupler body common and changes the bolt-on output by set. EX20 is the first output set; the related SQC01-VESA uses the same coupler-family logic for a monitor arm.
Why a 2020 Side Extension
A short 20x20 side rail gives integrators a rigid, lightweight place to add modules without drilling the main 3030 / 4040 frame or committing to a long articulated arm.
Decoupling the extension from the clamp also keeps the system serviceable: the coupler grips the main profile, the holder connects to the coupler, and the 20x20 arm can be cut or finalized to suit the released set. One coupler family can therefore support more than one output without creating separate 3030 and 4040 product lines.
How It Mounts
The EX20 set builds outward in four defined layers, ending at an auxiliary 20x20 rail rather than at the payload itself:
The holder bolts to the coupler's output pattern, and the 20x20 extrusion secures to the holder with T-nuts. The downstream device still needs its own compatible mounting base or adapter.
EX20, Direct Base, or VESA
Choose EX20 when the job needs a new auxiliary rail; choose a direct SightLink T-nut base when a single device can mount on the existing extrusion face; choose SQC01-VESA when the required output is specifically a rigid industrial monitor mount.
EX20 is useful before the final payload geometry is settled because the 20x20 rail can carry different downstream modules along its slot. It should not be described as a released camera-mount kit until the actual endpoint, extension length, load, and clamp validation are defined.
Geometry and Capacity
The current design direction covers 30x30 and 40x40 frame profiles and outputs a 20x20 extrusion arm; the standardized holder, arm length, clamp details, finish, fastener pack, and working load are still pending release confirmation.
- Frame side: one coupler-body concept intended for both 30x30 and 40x40 square extrusion.
- Output side: bolt-on KUPO 2020 holder and 20x20 extrusion arm.
- Arm length: not yet frozen for the released set.
- Working load: not yet published; validate clamp slip, rotation, holder stiffness, and cantilever bending.
Keep the extension short, place heavier payloads close to the main frame, and add cable strain relief. The usable capacity is set by the complete stack, not by the extrusion size alone.
Best Applications
Use EX20 where a machine frame needs a compact auxiliary rail for several possible modules or for clearance that the main extrusion face cannot provide.
- Short rigid offset from a VisionCell 3030 frame or a customer-owned 4040 frame.
- Auxiliary rail for compatible camera, light, or sensor mounting bases.
- Cable clips, strain-relief hardware, or small plate modules positioned away from the main rail.
- Layouts that need a lighter 20x20 branch instead of another full-size 3030 / 4040 member.
- Prototype cell geometry that will be validated before production release.
What's Included
The planned saleable set combines the SQC01 coupler body, a KUPO-provided 2020 holder, and a 20x20 extrusion arm; exact holder, arm length, fasteners, and finish remain to be frozen.
Downstream camera, light, sensor, monitor, rosette, ball-head, or adapter hardware is not part of the EX20 definition unless explicitly bundled later. The main 3030 / 4040 frame and cable-management hardware are also separate.
Before You Order
Do not order from this draft alone: first confirm the released clamp form for your 30x30 or 40x40 profile, the exact 2020 holder and arm length, the downstream mount, clearances, and the validated working load.
- Check clear tube length around the main profile; the coupler wraps the extrusion and may conflict with nearby brackets, guards, or slot accessories.
- Confirm whether the released dual-size design uses one geometry or a size-specific insert.
- Define the downstream endpoint before selecting the 20x20 arm length.
- Validate clamp slip, rotation, surface contact, holder stiffness, fastener torque, vibration, and cable pull.
- Use a separate compatible payload mount; the bare EX20 rail is not a direct camera interface.
Frequently Asked Questions
Does one EX20 set fit both 30x30 and 40x40 extrusion?
That is the design intent: one SQC01 coupler-body family for both sizes. The final clamp geometry and any required insert still need release confirmation before this becomes a guaranteed compatibility claim.
Is EX20 a camera mount?
Not by itself. It creates an auxiliary 20x20 extrusion rail. A camera, light, sensor, cable accessory, or plate still needs a compatible downstream mounting base or adapter.
What length is the 20x20 arm?
The released length has not yet been frozen. Confirm the selected arm length and downstream endpoint with KUPO before ordering or publishing the product.
Why use a holder instead of welding the arm to the coupler?
The bolt-on holder separates the common clamp body from the output rail. That reduces custom machining, keeps the arm replaceable, and lets the coupler family support other output sets.
How is this different from SQC01-VESA?
EX20 outputs an auxiliary 20x20 extrusion rail for downstream modules. SQC01-VESA outputs a dedicated monitor arm and VESA plate. They share the coupler-family concept but serve different endpoints.
Is the working load published?
Not yet. The clamp, holder, arm length, cantilever offset, payload mount, vibration, and cable pull all affect capacity, so the complete released stack must be tested.