1. Introduction
The XIIW XTB1600 Concrete Milling Machine is a powerful electric tool designed for efficient removal and renovation of hard surfaces. This versatile machine is suitable for both indoor and outdoor applications on walls, ceilings, and floors. It features a robust 1600W motor and a durable XTB-32H carbide milling blade system, making it ideal for materials such as cement, clay sand, limestone, tiles, ceramics, glass, and hard plastics. This manual provides essential information for safe and effective operation, setup, maintenance, and troubleshooting.

Image 1.1: Overview of the XIIW XTB1600 Concrete Milling Machine with key dimensions (245mm length, 220mm width, 165mm height).
2. Safety Instructions
Always prioritize safety when operating power tools. Read and understand all safety warnings and instructions before use.
- Personal Protective Equipment (PPE): Always wear appropriate PPE, including safety glasses, hearing protection, dust mask, and heavy-duty gloves.
- Work Area: Ensure the work area is clean, well-lit, and free from obstructions. Keep bystanders and children away.
- Dust Extraction: Connect the machine to an industrial vacuum cleaner (35mm diameter connection) to minimize dust exposure. Operating without proper dust extraction can lead to significant dust and flying debris.
- Secure Grip: Use both ergonomic handles to maintain a secure and controlled grip on the tool during operation.
- Overload Protection: The machine features an auto-cooling system to protect against overload and overheating. Do not force the tool.
- Blade Installation: Install side milling blades only when working in wall corners. For other applications, use only the central milling blade to reduce dust and the risk of concrete fragment splashes.
- Power Supply: Ensure the power supply matches the specifications of the machine (230V / 50Hz).
- Maintenance: Disconnect the power supply before performing any maintenance, blade changes, or adjustments.

Image 2.1: Always wear a dust mask and safety glasses when operating the machine.
3. Product Overview
The XIIW XTB1600 is engineered for durability and user comfort.
- Motor: 1600W powerful motor with an auto-cooling system for overload and overheating protection.
- Handles: Two ergonomic double handles for secure and efficient tool guidance.
- Housing: Reinforced aluminum housing reduces weight and protects the internal drive components.
- Milling Blades: Features XTB-32H carbide milling blades with 32 individual segments (double cutter design). These blades are ultra-hard and can be resharpened.
- Side Milling Blades: Individual side milling blades allow for edge-free milling around corners. These can be quickly attached or detached using a quick-change chuck.
- Base Plate: Polished base (glider) ensures smooth and uniform gliding across the work surface.
- Dust Extraction System: Three suction channels located directly behind the roller ensure dust-free operation when connected to an industrial vacuum.

Image 3.1: The XIIW XTB1600 machine with its XTB-32H milling head visible.

Image 3.2: The powerful 1600W motor with its self-cooling system.
4. Setup
- Unpacking: Carefully remove the milling machine and all accessories from the packaging. Inspect for any damage.
- Blade Installation:
- The machine comes with the main milling blade installed.
- If working in wall corners, attach the side milling blades using the quick-change chuck mechanism. Ensure they are securely fastened.
- For general surface milling, it is recommended to use only the central milling blade to minimize dust and debris.
- Dust Extraction Connection: Connect an industrial vacuum cleaner hose (35mm diameter) to the dust extraction port on the machine. Ensure a tight seal for effective dust collection.
- Height Adjustment: Familiarize yourself with the continuous height adjustment knob. This allows you to set the milling depth between 1mm and 4mm.
- Power Connection: Plug the power cable into a suitable 230V / 50Hz power outlet.

Image 4.1: Adjusting the milling height from 1mm to 4mm.
5. Operating Instructions
- Preparation:
- Ensure all safety instructions are followed and PPE is worn.
- Verify the dust extraction system is properly connected and operational.
- Set the desired milling depth using the height adjustment knob (1mm to 4mm). Start with a shallower depth for initial passes.
- Starting the Machine:
- Hold the machine firmly with both hands on the ergonomic handles.
- Press the power switch to start the motor. The machine will reach its operating speed of 1000-4000 RPM.
- Milling Process:
- Gently place the polished base plate onto the surface to be milled.
- Apply even pressure and move the machine smoothly across the surface. The polished base ensures stable gliding.
- For corner work, ensure side milling blades are installed. For open surfaces, use only the central blade.
- Do not apply excessive force; let the machine's weight and blade speed do the work.
- Overlap passes slightly to ensure complete coverage.
- Stopping the Machine:
- Lift the machine off the surface.
- Release the power switch to turn off the motor.
- Wait for the milling blades to come to a complete stop before setting the machine down or performing any adjustments.

Image 5.1: The polished base plate ensures smooth and stable operation.

Image 5.2: The three suction channels effectively remove dust during operation.
6. Maintenance
Regular maintenance ensures the longevity and optimal performance of your XIIW XTB1600 milling machine. Always disconnect the power supply before any maintenance.
- Cleaning: After each use, clean the machine thoroughly. Remove any dust or debris from the housing, ventilation slots, and especially around the milling blades and dust extraction ports. Use a brush or compressed air.
- Blade Inspection: Regularly inspect the XTB-32H carbide milling blades for wear or damage. Worn blades can reduce efficiency and increase strain on the motor.
- Blade Replacement/Resharpening: The individual segments of the carbide milling blades can be resharpened. If blades are severely worn or damaged, they should be replaced. Refer to the manufacturer's guidelines for replacement parts.
- Dust Extraction System: Ensure the dust extraction channels are clear and free from blockages. Clean the vacuum hose and filter regularly.
- Storage: Store the machine in a clean, dry place, away from moisture and extreme temperatures.

Image 6.1: The XTB-32H carbide milling blades with individual segments.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Machine does not start | No power supply; Faulty power switch; Overload protection activated. | Check power connection and outlet; Ensure switch is fully engaged; Disconnect from power, allow to cool, then restart. |
| Reduced milling performance | Worn or dull milling blades; Incorrect milling depth setting; Excessive material hardness. | Inspect and resharpen/replace blades; Adjust milling depth; Ensure material is within tool's capabilities. |
| Excessive dust during operation | Dust extraction hose not connected or blocked; Vacuum cleaner not powerful enough; Side blades used unnecessarily. | Check hose connection and clear blockages; Use an industrial vacuum; Remove side blades if not working in corners. |
| Machine overheats | Continuous heavy load; Blocked ventilation slots; Motor overload. | Allow machine to cool down; Clear ventilation slots; Reduce load or milling depth. |
8. Specifications
| Feature | Detail |
|---|---|
| Model Number | XTB1600 |
| Brand | XIIW |
| Power | 1600 Watts |
| Voltage | 230 Volt / 50 Hz |
| Rotational Speed | 1000-4000 RPM |
| Milling Width | Approx. 160 mm |
| Height Adjustment | 1-4 mm (continuous) |
| Milling Blades | XTB-32H Carbide Milling Blades (32 individual segments) |
| Power Type | Corded Electric |
| Product Dimensions | 36.2 x 34.9 x 20.5 cm |
| Item Weight | 7.36 Kilograms |
| Included Components | Roller milling machine + 32H milling blades |
9. Warranty and Support
For warranty information and technical support, please refer to the documentation provided with your purchase or contact the retailer. Keep your proof of purchase for any warranty claims.
For further assistance, you may contact XIIW customer service through their official channels.