1. Introduzione
The Einhell TE-AG 18/125 CE Q Li cordless angle grinder is a versatile and powerful tool designed for a variety of tasks including grinding, cutting, roughing, and polishing. As part of the Einhell Power X-Change family, this tool offers cordless freedom and compatibility with all Power X-Change batteries and chargers. It features a robust PurePOWER brushless motor for extended runtime and power, constant electronics for stable performance, and a quick-fix nut for easy disc changes. This manual provides essential information for safe operation, setup, maintenance, and troubleshooting to ensure optimal performance and longevity of your tool.

Figure 1: The Einhell Power X-Change ecosystem, highlighting battery compatibility across various tools.
2. Istruzioni di sicurezza
Per evitare lesioni e danni, osservare sempre le seguenti precauzioni di sicurezza quando si utilizza la smerigliatrice angolare.
- Indossare dispositivi di protezione individuale (DPI): Always wear safety goggles, hearing protection, and work gloves. A dust mask is recommended for dusty operations.
- Pezzo sicuro: Assicurarsi che il pezzo in lavorazione sia ben chiusoampfissati o fissati per impedirne il movimento durante il funzionamento.
- Presa corretta: Maintain a firm grip on the tool with both hands, using the additional handle provided.
- Check Disc Condition: Before each use, inspect the grinding or cutting disc for cracks, chips, or damage. Replace damaged discs immediately.
- Correct Disc Type: Use only discs appropriate for the material and task. Ensure the disc's maximum RPM rating is higher than the tool's maximum speed.
- Adjust Disc Guard: Position the disc guard to provide maximum protection for the operator and to deflect sparks away from the body.
- Evitare il contraccolpo: Be aware of potential kickback, especially when cutting. Maintain a stable stance and avoid binding the disc in the workpiece.
- Area di lavoro libera: Keep the work area clean and well-lit. Remove any flammable materials.
- Sicurezza della batteria: Use only Einhell Power X-Change batteries and chargers. Do not expose batteries to heat or water.
- Protezione da sovraccarico: The tool is equipped with overload protection. If the tool stops, reduce pressure or allow it to cool down before resuming.
- Protezione dal riavvio: The tool features restart protection to prevent accidental startup after a power interruption or battery change.
3. Componenti finitiview
Familiarize yourself with the main components of your Einhell Cordless Angle Grinder:
- Brushless Motor (PurePOWER): Provides high power and efficiency with minimal maintenance.
- Pulsante di blocco del mandrino: For securing the spindle during disc changes.
- Quick-Fix Nut: Allows for tool-free and rapid changing of grinding/cutting discs.
- Quick-Adjust Disc Guard: Protects against sparks and debris, adjustable without tools.
- Maniglia aggiuntiva: Can be mounted in two positions for optimal control and comfort.
- Manopola di controllo della velocità variabile: Adjusts the rotational speed (3000-10500 RPM) for different materials.
- Display a LED della velocità: Indicates the selected speed setting.
- Dust Protection Grid: Integrated grid protects the tool's interior from dust and debris, removable for cleaning.
- Interfaccia batteria: For connecting Power X-Change batteries.
4. Impostazione
4.1 Installazione della batteria
Ensure the battery is fully charged before use. The angle grinder is sold without a battery or charger, which must be purchased separately as part of the Power X-Change system.
- Align the battery with the battery interface on the tool.
- Far scorrere la batteria in posizione finché non scatta in modo sicuro.
- Per rimuoverla, premere il pulsante di rilascio sulla batteria e farla scorrere fuori.

Figure 2: Illustration indicating that the battery and charger are not included with the tool and must be purchased separately.
4.2 Installazione del disco e regolazione della protezione
The angle grinder accepts cutting discs up to 125 mm in diameter.
- Assicurarsi che l'utensile sia spento e che la batteria sia stata rimossa.
- Tenere premuto il pulsante di blocco del mandrino.
- Unscrew the quick-fix nut by hand (or using a spanner if necessary, though it's designed for tool-free operation).
- Place the desired grinding or cutting disc onto the flange, ensuring it is centered.
- Screw the quick-fix nut back on and tighten it firmly by hand. Release the spindle lock button.
- Adjust the quick-adjust disc guard to ensure maximum protection for your hands and body, deflecting sparks away from you.

Figure 3: Detail of the quick-fix nut mechanism for fast and tool-free disc changes.
4.3 Additional Handle Attachment
The additional handle can be screwed into either of the two mounting positions on the gear head for comfortable and secure two-hand operation.
5. Istruzioni per l'uso
5.1 Accensione/Spegnimento
- To switch on, slide the ON/OFF switch forward.
- To switch off, release the ON/OFF switch. The tool will stop.
5.2 Controllo della velocità variabile
The integrated variable speed control allows you to adjust the rotational speed between 3000 and 10500 RPM, optimizing performance for different materials and applications. The constant electronics feature ensures that the selected speed is maintained even under load.
- Use the speed control dial to select the desired RPM.
- Refer to the LED speed display for the current setting.
- Lower speeds are generally suitable for polishing or working with sensitive materials, while higher speeds are for aggressive grinding and cutting.

Figure 4: Close-up of the variable speed control dial, allowing precise speed adjustment.

Figure 5: The LED display showing speed settings and an overload indicator for safe operation.
5.3 Suggerimenti generali per l'uso
- Lasciare che l'utensile raggiunga la massima velocità prima di entrare in contatto con il pezzo in lavorazione.
- Apply moderate pressure; excessive force can lead to overheating, reduced performance, and disc damage.
- Move the tool smoothly and consistently across the workpiece.
- For cutting, use a cutting disc and make shallow passes to avoid binding.
- For grinding, hold the disc at a slight angle to the workpiece.

Figure 6: An operator using the Einhell angle grinder for a cutting application, demonstrating proper safety gear and technique.
6. Manutenzione
Una manutenzione regolare garantisce la longevità e le prestazioni ottimali della vostra smerigliatrice angolare.
6.1 Pulizia
- Rimuovere sempre la batteria prima della pulizia.
- Pulisci l'esterno dell'utensile con un panno morbido eamp stoffa. Non utilizzare prodotti chimici aggressivi o detergenti abrasivi.
- The integrated dust protection grid can be easily removed for cleaning. Regularly clean it to prevent dust buildup and ensure proper air circulation.
- Use compressed air to clear ventilation slots and internal components of dust and debris.

Figure 7: Close-up of the removable dust protection grid, designed to shield internal components from debris.
6.2 Conservazione
Store the angle grinder in a dry, secure place, out of reach of children. Remove the battery before storing for extended periods.
7. Risoluzione Dei Problemi
Ecco alcuni problemi comuni e le loro possibili soluzioni:
| Problema | Possibile causa | Soluzione |
|---|---|---|
| Lo strumento non si avvia | Battery not inserted correctly or discharged; ON/OFF switch not fully engaged; Restart protection active. | Check battery connection and charge level; Ensure switch is fully engaged; Cycle the ON/OFF switch to reset restart protection. |
| Reduced performance / Tool stops during operation | Overload protection activated; Battery low; Disc worn or incorrect type. | Reduce pressure on the tool; Recharge battery; Replace disc if worn or use appropriate disc. |
| Vibrazione eccessiva | Disc incorrectly mounted or damaged; Flange nut not tightened. | Re-mount disc correctly; Replace damaged disc; Tighten quick-fix nut securely. |
8. Specifiche
| Caratteristica | Valore |
|---|---|
| Numero di modello | 4431155 |
| Fonte di alimentazione | Alimentato a batteria (Power X-Change 18V) |
| Voltage | 18 Volt |
| Potenza in uscita | 900 Watt |
| Diametro massimo del disco | 125 millimetri |
| Profondità di taglio massima | 33 millimetri |
| Velocità a vuoto | 3000 - 10500 giri/min (variabile) |
| Tipo di motore | Brushless (PurePOWER) |
| Dimensioni del prodotto (LxWxH) | Dimensioni: 30 x 22.4 x 11 cm |
| Peso dell'articolo | 1.71 kg |
| Componenti inclusi | Cordless Angle Grinder, Disc Guard, Quick-Fix Nut, Auxiliary Handle |
9. Garanzia e supporto
Einhell provides a 10-year guarantee on the PurePOWER brushless motor upon online registration. For detailed warranty information, product registration, or technical support, please visit the official Einhell webo contattare il rivenditore locale. Conservare la ricevuta d'acquisto come prova d'acquisto.