BONTEC GDM02U
BONTEC GDM02U Dual Monitor Arm User Manual
Model: GDM02U
1. Introducció
Thank you for choosing the BONTEC GDM02U Dual Monitor Arm. This manual provides essential information for the safe and efficient installation, operation, and maintenance of your monitor arm. Please read these instructions carefully before assembly and retain them for future reference.
This dual monitor arm is designed to support two 13-32 inch LED LCD screens, each weighing up to 8 kg (17.6 lbs), with VESA mounting patterns of 75x75mm or 100x100mm.

Image 1.1: BONTEC Dual Monitor Arm supporting two monitors. This image highlights the product's compatibility with 13-32 inch screens, an 8kg (18.0 lbs) weight capacity per arm, and VESA 75x75 / 100x100 mounting standards.
2. Informació de seguretat
- Llegeix totes les instruccions: Ensure you understand all instructions and warnings before installation.
- Capacitat de pes: Do not exceed the maximum weight capacity of 8 kg (17.6 lbs) per arm. Exceeding this limit may result in serious injury or product damage.
- Mida del monitor: Aquest braç està dissenyat per a monitors d'entre 13 i 32 polzades.
- Compatibilitat VESA: Ensure your monitors have VESA mounting patterns of 75x75mm or 100x100mm.
- Desk stability: Ensure your desk is structurally sound and can support the combined weight of the monitor arm and monitors.
- Muntatge: Assemble the product according to the instructions. Improper assembly can cause damage or serious injury.
- Parts mòbils: Be aware of pinch points when adjusting the arm.
- Nens: Mantingueu les peces petites allunyades dels nens.
3. Contingut del paquet
Verify that all components are present and undamaged. If any parts are missing or damaged, contact BONTEC customer service.

Image 3.1: All components included in the BONTEC GDM02U package. This includes the dual gas spring arms, desk clamp, grommet mounting hardware, VESA plates, and assembly tools.
Note: The exact number and type of fasteners may vary slightly. Refer to the included parts list in your package.
4. Configuració i instal·lació
The BONTEC GDM02U offers two installation methods: Desk Clamp and Grommet Base.
4.1 Choose Your Installation Method

Image 4.1: Illustration of the two available installation methods: Desk Clamp and Grommet Base. The desk clamp is suitable for desk thicknesses between 10mm and 83mm. The grommet base requires a hole diameter of 10mm to 50mm and is also suitable for desk thicknesses between 10mm and 83mm.
4.2 Escriptori Clamp Instal·lació
- Enganxeu el C-clamp al pol principal.
- Col·loca el clamp on the edge of your desk and tighten the screw until secure. Ensure the desk thickness is between 10mm and 83mm.
- Slide the monitor arms onto the pole and secure them at the desired height.
4.3 Instal·lació de la base del grommet
- If your desk has a grommet hole (10-50mm diameter), insert the grommet base through the hole.
- Secure the base from underneath the desk using the provided plate and nut. Ensure the desk thickness is between 10mm and 83mm.
- Slide the monitor arms onto the pole and secure them at the desired height.
4.4 Attaching Monitors
- Attach the VESA plates to the back of your monitors using the appropriate screws (M4 or M5, depending on your monitor). Ensure the VESA pattern is 75x75mm or 100x100mm.
- Carefully slide the monitors (with VESA plates attached) onto the arms' mounting heads. The VESA plates have open top slots for easy hanging.
- Secure the monitors by tightening the bottom screws on the VESA plates.

Image 4.2: Detail of VESA plate attachment and cable management. Monitors are easily mounted by sliding them onto the VESA plate's top slots. The integrated cable management system helps organize power and display cables for a tidy workspace.
4.5 Gestió de cables
Route your monitor cables through the integrated cable management channels on the underside of the arms. This helps maintain a clean and organized workspace.
5. Funcionament i ajust
The BONTEC GDM02U monitor arm offers extensive flexibility for optimal viewangles d'ajust i posicionament ergonòmic.
5.1 Ajust de la posició del monitor
- Ajust d'alçada: The gas spring allows for smooth vertical movement. Gently push or pull the monitor to the desired height (up to 400mm).
- Inclinació: Tilt the monitor +90° (upwards) to -45° (downwards) to reduce glare and optimize viewing.
- Girar: Swivel the monitor ±90° left or right. The arm itself can swivel 360° at the base and 250° at the elbow joint.
- Rotació: Rotate the monitor 360° for landscape or portrait orientation.

Image 5.1: Demonstrates the extensive flexibility of the monitor arm. It features 360° swivel at the base, 250° swivel at the arm's elbow, and ±90° swivel along with 360° rotation at the monitor mounting plate, allowing for wide viewing angles and orientation changes.

Image 5.2: Illustrates the full dynamic motion of the arm, including a tilt range of +90° to -45°. It shows a maximum arm extension of 525mm and a maximum height adjustment of 400mm. A close-up highlights the tension adjustment screw for the gas spring arm.
5.2 Ajust de la tensió de la molla de gas
If your monitor does not stay at the desired height, or if it is too difficult to move, you may need to adjust the gas spring tension. Use the provided Allen key to turn the tension screw located on the arm joint:
- Gira sentit horari (-) a disminuir tensió (per a monitors més lleugers).
- Gira en sentit antihorari (+) a augmentar tensió (per a monitors més pesants).
Adjust gradually until the monitor holds its position firmly and moves smoothly.
6. Manteniment
- Neteja: Netegeu el braç del monitor amb un drap suauamp drap. Eviteu productes de neteja o dissolvents abrasius.
- Comprovacions periòdiques: Reviseu periòdicament tots els cargols i connexions per assegurar-vos que estiguin ben ajustats. Torneu a apretar-los si cal.
- Molla de gas: La molla de gas està dissenyada per a un ús a llarg termini i generalment no requereix manteniment. No intenteu desmuntar el cilindre de la molla de gas.
7. Solució De Problemes
| Problema | Causa possible | Solució |
|---|---|---|
| El monitor s'enfonsa o no es manté a l'alçada desitjada. | La tensió de la molla de gas és massa baixa per al pes del monitor. | Increase gas spring tension by turning the adjustment screw counter-clockwise (+). |
| Monitor is difficult to move or adjust. | La tensió de la molla de gas és massa alta per al pes del monitor. | Decrease gas spring tension by turning the adjustment screw clockwise (-). |
| Monitor arm feels unstable. | Escriptori clamp o la base de l'unell no està ben ajustada. | Torneu a apretar les pinces de l'escriptoriamp or grommet base. Ensure the desk is stable. |
| Els monitors no estan anivellats. | Minor misalignment during installation or adjustment. | Adjust the tilt and rotation of individual VESA plates to level the monitors. |
8. Especificacions
| Característica | Detall |
|---|---|
| Número de model | GDM02U |
| Compatibilitat amb la mida de la pantalla | 13 - 32 inches (per monitor) |
| Capacitat de pes | Up to 8 kg (17.6 lbs) per arm |
| Compatibilitat VESA | 75x75mm, 100x100mm |
| Interval d'inclinació | +90° / -45° |
| Gamma giratòria | ±90° (monitor plate), 250° (arm elbow), 360° (base) |
| Rotació | 360° |
| Extensió màxima del braç | 525 mm |
| Ajust d'alçada màxima | 400 mm |
| Mètodes d'instal·lació | Escriptori Clamp, Base d'orella |
| Escriptori Clamp Gruix | 10 - 83 mm |
| Diàmetre del forat del grommet | 10 - 50 mm |
| Material | High-strength Steel, Aluminum |
| Color | Negre |
9. Garantia i Suport
For warranty information or technical support, please refer to the documentation included with your product or visit the official BONTEC weblloc web. També podeu contactar amb el vostre distribuïdor per obtenir ajuda.
A detailed user guide in PDF format is available for download: BONTEC GDM02U User Guide (PDF).
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