BONTEC GDM02U
BONTEC GDM02U Dual Monitor Arm User Manual
Model: GDM02U
1. Introducción
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. Información de seguridad
- Lee todas las instrucciones: Asegúrese de comprender todas las instrucciones y advertencias antes de la instalación.
- Capacidad de peso: 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.
- Tamaño del monitor: This arm is designed for monitors between 13 and 32 inches.
- Compatibilidad 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.
- Asamblea: Assemble the product according to the instructions. Improper assembly can cause damage or serious injury.
- Partes móviles: Be aware of pinch points when adjusting the arm.
- Niños: Mantenga las piezas pequeñas fuera del alcance de los niños.
3. Contenido del paquete
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. Configuración e instalación
The BONTEC GDM02U offers two installation methods: Desk Clamp y base de ojal.
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 Escritorio Clamp Instalación
- Coloque el C-clamp al poste principal.
- Posiciona 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 Instalación de la base del ojal
- Si su escritorio tiene un orificio para ojal (de 10 a 50 mm de diámetro), inserte la base del ojal a través del orificio.
- 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 Conexión de monitores
- 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 Gestión 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. Operación y ajuste
The BONTEC GDM02U monitor arm offers extensive flexibility for optimal viewángulos de inclinación y posicionamiento ergonómico.
5.1 Ajuste de la posición del monitor
- Ajuste de altura: The gas spring allows for smooth vertical movement. Gently push or pull the monitor to the desired height (up to 400mm).
- Inclinación: Tilt the monitor +90° (upwards) to -45° (downwards) to reduce glare and optimize viewEn.
- Girar: Swivel the monitor ±90° left or right. The arm itself can swivel 360° at the base and 250° at the elbow joint.
- Rotación: Gire el monitor 360° para orientación horizontal o vertical.

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 Ajuste de la tensión del resorte 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:
- Doblar en sentido horario (-) a disminuir tension (for lighter monitors).
- Doblar en sentido antihorario (+) a aumentar tension (for heavier monitors).
Adjust gradually until the monitor holds its position firmly and moves smoothly.
6. Mantenimiento
- Limpieza: Limpie el brazo del monitor con un paño suave.amp Paño. Evite limpiadores abrasivos o disolventes.
- Controles periódicos: Revise periódicamente todos los tornillos y conexiones para asegurarse de que estén bien apretados y seguros. Vuelva a apretarlos si es necesario.
- Resorte de gas: The gas spring is designed for long-term use and generally requires no maintenance. Do not attempt to disassemble the gas spring cylinder.
7. Solución de problemas
| Problema | Posible causa | Solución |
|---|---|---|
| El monitor se hunde o no permanece a la altura deseada. | La tensión del resorte de gas es demasiado baja para el peso del monitor. | Aumente la tensión del resorte de gas girando el tornillo de ajuste en sentido antihorario (+). |
| El monitor es difícil de mover o ajustar. | La tensión del resorte de gas es demasiado alta para el peso del monitor. | Disminuya la tensión del resorte de gas girando el tornillo de ajuste en el sentido de las agujas del reloj (-). |
| Monitor arm feels unstable. | Escritorio clamp o la base del ojal no está bien apretada. | Vuelva a apretar el cierre del escritorio.amp or grommet base. Ensure the desk is stable. |
| Los monitores no están nivelados. | Desalineación menor durante la instalación o el ajuste. | Adjust the tilt and rotation of individual VESA plates to level the monitors. |
8. Especificaciones
| Característica | Detalle |
|---|---|
| Número de modelo | GDM02U |
| Compatibilidad de tamaño de pantalla | 13 - 32 inches (per monitor) |
| Capacidad de peso | Hasta 8 kg (17.6 libras) por brazo |
| Compatibilidad VESA | 75 x 75 mm, 100 x 100 mm |
| Rango de inclinación | +90° / -45° |
| Rango giratorio | ±90° (monitor plate), 250° (arm elbow), 360° (base) |
| Rotación | 360° |
| Extensión máxima del brazo | 525 milímetros |
| Ajuste máximo de altura | 400 milímetros |
| Métodos de instalación | Escritorio ClampBase de ojal |
| Escritorio Clamp Espesor | 10 - 83 mm |
| Diámetro del orificio del ojal | 10 - 50 mm |
| Material | High-strength Steel, Aluminum |
| Color | Negro |
9. Garantía y soporte
For warranty information or technical support, please refer to the documentation included with your product or visit the official BONTEC websitio. También puede ponerse en contacto con su distribuidor para obtener ayuda.
Está disponible para descargar una guía de usuario detallada en formato PDF: BONTEC GDM02U User Guide (PDF).
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