Ergotron LX Sit-Stand Desk Arm Polished Aluminum
PRODUCT DESCRIPTION
Ergotron LX Sit-Stand Desk Arm Polished Aluminum (45-360-026) - 10 Years Local Warranty
A Full 20 Inches of Sit-Stand Lift Without Replacing the Desk
The Ergotron LX Sit-Stand Desk Mount LCD Arm (45-360-026) delivers 20″ (51 cm) of vertical travel from a standard desk — enough to move a screen from a seated eye line to a standing one and back. For Singapore offices that want sit-stand working without the cost, lead time and floor disruption of replacing every desk with an electric height-adjustable frame, this arm is the direct route: clamp it to the desk you already have and the screen does the moving.
Constant Force Technology — One Touch, No Tools, No Gas Struts
Ergotron's patented Constant Force™ lift keeps the arm balanced across its whole 20″ range, so the screen glides to a new height with a fingertip and stays exactly where it is placed. There are no gas cylinders to lose pressure and no knobs to release — the reason these arms remain in service through several monitor replacements.
33 Inches of Reach, Then Folds Back to 4.5 Inches
The arm extends up to 33″ (84 cm) to bring a display right to the user for detail work, then folds back to just 4.5″ (12 cm) of depth against the desk edge when the screen is pushed away. That combination reclaims the desk surface a monitor stand permanently occupies — valuable on 600 mm-deep bench desks.
Full Motion for Collaboration and Ergonomic Compliance
70° of backward tilt, 5° forward, 360° pan and 360° rotation let the screen be angled for glare, swung to a colleague for a quick review, or rotated to portrait for code, documents and long reports. It supports screens up to 42″ weighing 7–25 lbs (3.2–11.3 kg) on VESA MIS-D, MIS-E and MIS-F patterns.
Ergotron LX Sit-Stand Desk Arm Datasheet — Technical Specifications
General
| Product Name | Ergotron LX Sit-Stand Desk Mount LCD Arm |
| Part Number | 45-360-026 (polished aluminium) |
| Product Type | Single-monitor sit-stand desk mount arm |
| Number of Screens | 1 |
| Lift Technology | Ergotron Constant Force™ |
| Mounting Type | Desk clamp or grommet mount (both included) |
| Manufacturer Warranty | 10-Year Manufacturer Warranty (Ergotron) |
| Local Warranty (Singapore) | Supplied by SourceIT Pte Ltd with GST invoice |
Display Compatibility
| Weight Capacity | 7–25 lbs (3.2–11.3 kg) |
| Maximum Screen Size | Up to 42″ |
| VESA Pattern | MIS-D (75 x 75 mm, 100 x 100 mm), MIS-E (200 x 100 mm), MIS-F (200 x 200 mm) |
| Larger VESA Patterns | Optional Ergotron VESA adapter kit for 400 x 200, 400 x 300 and 400 x 400 mm |
| Capacity Note | Monitor depth can affect usable weight capacity |
Adjustment & Motion
| Vertical Lift | 20″ (51 cm) |
| Extension / Reach | Up to 33″ (84 cm) |
| Retracted Depth | Folds to 4.5″ (12 cm) |
| Tilt | 70° backward / 5° forward |
| Pan | 360° |
| Rotation | 360° — portrait or landscape |
| Cable Management | Integrated cable routing along the arm and pole |
Design & Durability
| Construction | Polished aluminium |
| Desk Clamp Fit | Desk edges up to 2.5″ (65 mm) thick |
| Grommet Mount Fit | Holes 0.5″–2.5″ (7–65 mm) wide, surfaces up to 2.5″ (65 mm) thick |
| Product Weight | 19.5 lbs (8.9 kg) |
| Shipping Dimensions | 25″ x 14.75″ x 7.5″ (64 x 38 x 19 cm) |
| Shipping Weight | 20.5 lbs (9.3 kg) |
Compatibility & Fit
The LX Sit-Stand Desk Arm is a single-screen desk mount with an unusually long lift range. Confirm three things before ordering: the display's VESA pattern, its weight without the factory stand, and the thickness of the desk edge or grommet hole.
| VESA Patterns Supported | MIS-D 75 x 75 mm and 100 x 100 mm; MIS-E 200 x 100 mm; MIS-F 200 x 200 mm |
| Larger Patterns | Optional Ergotron VESA adapter kit covers 400 x 200, 400 x 300 and 400 x 400 mm |
| Screen Size | Up to 42″ diagonal |
| Screen Weight | 7–25 lbs (3.2–11.3 kg) — measured without the factory stand |
| Number of Screens | One |
| Desk Clamp | Fits desk edges up to 2.5″ (65 mm) thick |
| Grommet Mount | Fits holes 0.5″–2.5″ (7–65 mm) wide on surfaces up to 2.5″ (65 mm) thick |
| Wall / Pole Mounting | Not applicable — for a wall-mounted sit-stand arm see the LX Sit-Stand Wall Mount LCD Arm (45-353-026) |
Ultrawide and curved screens: a 34″ ultrawide typically sits inside both the 42″ size limit and the 25 lbs weight limit, and the arm's 360° pan handles the extra width well. Heavier 38″–49″ panels and deeply curved 1000R displays exceed this arm's rating — use the HX Desk Monitor Arm (up to 42 lbs / 19 kg) or the HX Desk Monitor Arm with HD Pivot for those.
Very light screens: the Constant Force mechanism has a lower limit of 7 lbs (3.2 kg). Panels lighter than that will not hold position correctly on this arm.
Package Contents & LX Ordering Information
In the Box
- LX sit-stand arm
- Extension
- Desk clamp base
- Grommet-mount base
- 42 cm pole
- VESA brackets and mounting hardware
- Instruction manual
LX Sit-Stand Arms — Ordering Information
| 45-360-026 | LX Sit-Stand Desk Mount LCD Arm, Polished Aluminium (this listing) |
| 45-353-026 | LX Sit-Stand Wall Mount LCD Arm, Polished Aluminium |
Related LX Desk Arms in the SourceIT Catalogue
| 45-241-026 | LX Desk Mount Monitor Arm, Polished Aluminium |
| 45-241-224 | LX Desk Mount Monitor Arm, Matte Black |
| 45-490-216 | LX Desk Mount Monitor Arm, White |
| 45-295-026 | LX Desk Monitor Arm, Tall Pole, Polished Aluminium |
| 45-268-026 | LX HD Wall Swing Arm |
Accessories
| 45-289-026 | LX Extension — adds 9″ (23 cm) of reach |
| 50-193-200 | Notebook Tray for laptops |
Note: the LX Extension Arm Kit (97-940-026 / 98-130-216) is not compatible with LX Sit-Stand arm systems.
Datasheet & Downloads
- Ergotron LX Sit-Stand Desk Arm official product page (ergotron.com)
- Official Ergotron LX Sit-Stand Monitor Arms datasheet (PDF)
Need the datasheet emailed as a PDF for a tender or quotation? Contact SourceIT Pte Ltd at sales@sourceit.com.sg.
Frequently Asked Questions — Ergotron LX Sit-Stand Desk Arm
What finishes does the LX Sit-Stand Desk Arm come in?
SourceIT stocks the polished aluminium version, 45-360-026, which is the finish Ergotron publishes for this model. It pairs visually with the rest of the polished aluminium LX range.
What monitor size and weight does it support?
Displays up to 42″ weighing 7–25 lbs (3.2–11.3 kg), measured without the factory stand. Monitor depth can reduce the usable capacity, so deep-chassis screens should be checked against the datasheet.
Is this a single or dual monitor arm?
Single. For two screens on one desk, use the LX Dual Desk Mount Side-by-Side Arm or the HX Dual Monitor Desk Arm.
How does it mount, and how thick can my desk be?
Both a desk clamp and a grommet-mount base are supplied. The clamp fits desk edges up to 2.5″ (65 mm) thick; the grommet base fits holes 0.5″–2.5″ (7–65 mm) wide on surfaces up to 2.5″ (65 mm) thick.
Do I need a VESA adapter?
Not for most displays — the arm covers MIS-D (75 x 75 and 100 x 100 mm), MIS-E (200 x 100 mm) and MIS-F (200 x 200 mm) natively. Screens using 400 x 200, 400 x 300 or 400 x 400 mm patterns need Ergotron's optional VESA adapter kit.
Does it really give proper sit-stand working from an ordinary desk?
Yes — 20″ (51 cm) of vertical travel is enough to move a screen between a seated and a standing eye line on a standard-height desk, which is why this arm is a common alternative to replacing desks with electric height-adjustable frames. Pair it with a keyboard solution so the hands rise with the eyes.
How does it compare with the LX Desk Mount Monitor Arm?
The LX Desk Mount Monitor Arm (45-241-026) is the everyday full-motion arm; this sit-stand model trades a little compactness for far more travel — 20″ (51 cm) of lift and 33″ (84 cm) of reach against the standard LX arm's shorter range. Choose the sit-stand version when the screen must follow the user between sitting and standing.
Does it come with a Singapore warranty?
Yes. Every Ergotron LX Sit-Stand Desk Arm sold by SourceIT comes with local Singapore warranty and a GST invoice; Ergotron backs the LX Sit-Stand Desk Arm with a 10-year manufacturer warranty.




