1. Informació important de seguretat
WARNING: Read this instruction manual before operating the product. Keep this instruction manual for future reference.
1.1 Símbols utilitzats en aquest manual
Indica el risc de lesions personals o danys a l'eina.
Porteu protecció auditiva.
Denotes risk of personal injury or damage to the tool (read manual).
Dispose appliances according to the regulation and requirement of local council.
1.2 Advertències generals de seguretat d'eines elèctriques
ADVERTIMENT! Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire, or serious injury.
Seguretat de l'àrea de treball
- Mantenir la zona de treball neta i ben il·luminada.
- No feu servir eines elèctriques en atmosferes explosives, com ara en presència de líquids, gasos o pols inflamables.
- Mantingueu els nens i els espectadors allunyats mentre feu servir una eina elèctrica.
Seguretat elèctrica
- Original accessories reduce the risk of electric shock; do not modify any parts without authorization.
- Avoid body contact with grounded article surfaces, such as pipes, radiators, ranges, and refrigerators.
- No exposar les eines elèctriques a la pluja o a condicions humides.
- Do not abuse cords and keep them away from heat, oil, and sharp edges.
Seguretat personal
- Stay alert when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol, or medication.
- Wear eye protection and other protective equipment (dust mask, non-skid safety shoes, hard hat, or hearing protection) to reduce personal injuries.
- Assegureu-vos que l'interruptor estigui a la posició apagada abans de connectar-lo a la font d'alimentació o a la bateria.
- Maintain proper standing and balance at all times.
- Keep hair, clothing, and jewelry away from the moving parts. Loose clothing, jewelry, or long hair may get caught in moving parts.
- The use of dust collection devices reduces the hazards associated with dust, especially when used on wood such as oak, beech, and MDF.
2. Producte acabatview
The YOFIDRA 125mm Brushless Angle Grinder is a versatile power tool designed for cutting, grinding, and polishing tasks. It features a powerful brushless motor for efficient operation and extended tool life.

Figure 1: Yofidra 125mm Brushless Angle Grinder with battery and accessories.
2.1 Parts Description (Figure A)

Figure 2: Detailed product mix diagram labeling components.
- Mànec
- Bloqueig de l'eix
- Funda protectora
- Sortida d'aire
- Canvia
- Bloqueig de seguretat
- Mànec antilliscant
- Panell de control
- Bateria
2.2 Especificacions
| Atribut | Valor |
|---|---|
| Motor | Motor sense escombretes |
| Voltage | 18V-21V |
| Poder | 1500W |
| Velocitat sense càrrega | 12000 rpm |
| Diàmetre del disc de mòlta | 125mm (also available for 100mm/115mm/150mm/180mm) |
| Fil de cargol | M14 |
| Engranatge ajustable | 3 engranatges |
| Pes net | 1.5 kg |
| Battery Capacity (388VF) | 15000mAh (10 cells x 1500mAh) |
3. Configuració i instal·lació
3.1 Instal·lació i extracció de la bateria
ADVERTIMENT: Before inserting or removing the battery pack, make sure the appliance is switched off.
- Per inserir: Align the battery pack with the angle grinder base and slide it in until it locks into position.
- Per eliminar: Press the release button on the battery pack and pull the battery pack off at the same time.
3.2 Accessory Installation (Cutting Wheel / Sanding Disc)

Figure 3: Installation steps for a cutting wheel.
- Install the Protective Cover (Baffle): Place the cover in position and tighten the screws securely.
- Install the Cutting Wheel / Saw Blade:
- Press the spindle lock button and unscrew the outer presser.
- Place the cutting wheel onto the spindle.
- Screw the outer presser back on.
- While keeping the spindle lock pressed, use the provided wrench to align the holes and tighten the presser firmly.
- Instal·leu el mànec: Screw the detachable handle into the designated mounting hole on the grinder.
- Plug in the Battery: Insert the charged battery pack as described in section 3.1.

Figure 4: Installation steps for a sanding disc.
For sanding applications, follow these steps:
- Instal·leu el mànec.
- Put the self-adhesive disc onto the spindle.
- Tighten the presser while keeping the spindle lock pressed.
- Apply appropriate sandpaper to the self-adhesive disc.
4. Funcionament
The YOFIDRA angle grinder is designed for cutting, grinding, and polishing various materials. Always ensure proper safety precautions are followed before and during operation.
Video 1: Demonstration of the Yofidra angle grinder performing cutting, grinding, and polishing tasks, including accessory changes.
4.1 Ús i cura de les eines elèctriques
- Use the correct power tool for the job. The right tool will perform better and safer at the rate for which it was designed.
- No utilitzeu l'eina elèctrica si l'interruptor no l'encén i l'apaga. Qualsevol eina elèctrica que no es pugui controlar amb l'interruptor és perillosa i s'ha de reparar.
- Remove the battery pack before making any adjustments, changing accessories, or storing the power tool. Such preventive safety measures reduce the risk of accidental starting.
- Guardeu les eines elèctriques inactivas fora de l'abast dels nens i no permeteu que les persones que no estiguin familiaritzades amb l'eina elèctrica o aquestes instruccions l'utilitzin.
- Before each use, check for misalignment or binding of moving parts, breakage of parts, and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use.
- Utilitzeu l'eina elèctrica, els accessoris i les broques d'eina d'acord amb aquestes instruccions, tenint en compte les condicions de treball i el treball a realitzar. L'ús de l'eina elèctrica per a operacions diferents de les previstes podria provocar una situació de perill.
- Clamp power tools with insulated gripping surfaces when performing an operation where the cutting accessory may contact hidden wiring to avoid electric shock.
4.2 Ús i cura de l'eina de la bateria
- Recarregueu només amb el carregador especificat pel fabricant.
- Use only the designated battery packs.
- When the battery pack is not in use, keep it away from metal objects like paper clips, coins, keys, nails, screws, or other small metal objects that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
- En condicions abusives, es pot expulsar líquid de la bateria; evitar el contacte. Si es produeix un contacte accidental, esbandiu amb aigua. Si el líquid entra en contacte amb els ulls, també busqueu ajuda mèdica. El líquid expulsat de la bateria pot causar irritació o cremades.
5. Manteniment i emmagatzematge
5.1 Neteja
- Keep the ventilation slots free from dust and dirt to prevent overheating.
- Regularly clean the angle grinder's housing with a soft cloth, preferably after each use. If the dirt does not come off, use a soft cloth moistened with soapy water.
- No utilitzeu mai dissolvents com gasolina, alcohol, aigua amoníaca, etc. Aquests dissolvents poden danyar les peces de plàstic.
5.2 Manteniment
- The angle grinder is designed to require minimal maintenance during extended operation. Continued satisfactory operation depends on proper maintenance and regular cleaning.
- Only be repaired by authorized service centers.
5.3 Emmagatzematge
- Thoroughly clean the angle grinder and its accessories before storage.
- Store the angle grinder out of the reach of children in a dry, secure place.
6. Solució De Problemes
| Problema | Possibles causes | Possibles Solucions |
|---|---|---|
| No es pot començar | La bateria no està instal·lada correctament | Remove and reinsert the battery pack. |
| La bateria no està carregada | Carregueu la bateria. | |
| Internal damage or wear (e.g., motor damaged) | Repair by an authorized service center. | |
| Can only run slowly | La bateria no està carregada | Carregueu la bateria. |
| Battery wears out | Substituïu la bateria per una de nova. | |
| Noisy or rattling | Danys o desgast interns | Repair by an authorized service center. |
| Sobreescalfar | Ventilation vents blocked | Clean the dust from the ventilation vents. |
| The angle grinder is running for too long | Turn off the angle grinder and let it cool down. |
7. Consells d'usuari
- Always ensure your battery is fully charged before starting a task to maintain consistent power and prevent interruptions.
- For optimal performance and safety, use only Yofidra brand batteries and accessories. Using other types may lead to damage or injury.
- When switching between cutting, grinding, and polishing, double-check that the correct disc and protective cover are securely installed for the specific application.
8. Garantia i Suport
Yofidra offers a free replacement within 1 year and a warranty within 2 years from the date of purchase. If you encounter any problems with your angle grinder or battery, please contact the seller through the "Contact Seller" option in your order form for assistance.
Yofidra specializes in the design and production of power tools, aiming to provide convenient wireless products and cost-effective tools.

Figure 5: Yofidra Brand Story and Service Information.