1. Product Overview
The Wood-Mizer BMS25 Sawmill Bandsaw Blade Sharpener is designed for efficient and precise sharpening of sawmill bandsaw blades. This unit features an automatic indexing system and is powered by a 12V DC battery (sold separately), allowing for versatile use in various locations. It is built to maintain the sharpness and performance of your bandsaw blades, ensuring consistent cutting quality.
Figure 1: Wood-Mizer BMS25 Sawmill Bandsaw Blade Sharpener. This image displays the complete sharpener unit with a bandsaw blade mounted, illustrating its compact design and the support arms for the blade.
2. What's in the Box
- Bandsaw Blade Sharpener Unit
- 5" Grinding Wheel
- Wheel Shaping Tool
- Adjustable Stand (components for assembly)
- 10°/30° Blade Profile Cam (pre-installed or included)
Note: A 12V battery is required for operation and is sold separately.
3. Safety Information
Always read and understand all instructions and safety warnings before operating the BMS25 sharpener. Failure to follow these instructions may result in serious injury or property damage.
- Wear appropriate personal protective equipment (PPE), including safety glasses and gloves, during setup, operation, and maintenance.
- Ensure the sharpener is placed on a stable, level surface.
- Disconnect power before performing any maintenance, adjustments, or when the unit is not in use.
- Keep hands and loose clothing clear of moving parts and the grinding wheel during operation.
- Do not operate the sharpener in wet conditions or in the presence of flammable liquids or gases.
- Only use the specified 12V DC power source.
- Keep children and bystanders away from the operating area.
4. Setup
4.1 Stand Assembly
The BMS25 comes with a compact, adjustable stand. Assemble the stand by securely attaching the 1-3/16" diameter pipe legs to the main sharpener unit. Ensure all connections are tight and stable.
Figure 2: Base of the BMS25 Sharpener. This image highlights the sturdy base of the sharpener, showing the attachment points for the stand legs and the control panel.
4.2 Power Connection
Connect the sharpener to a 12V DC battery (not included). The unit is designed to connect to automotive-style batteries, such as those found on sawmills, trucks, or tractors, capable of maintaining a 10-amp load. Ensure correct polarity when connecting the battery terminals.
4.3 Blade Installation
Carefully install the bandsaw blade onto the sharpener. The blade should rest on the smooth ride blade support arms and rollers, ensuring proper alignment with the grinding wheel. The index arm should engage with the blade teeth.
Figure 3: Blade Installation. This image provides a detailed view of the blade support arms and how the bandsaw blade is positioned for sharpening.
4.4 Grinding Wheel Installation
Install the 5" grinding wheel onto the sharpener's motor shaft. Ensure it is securely fastened. The sharpener includes a 10°/30° blade profile cam, suitable for sharpening 10-degree sawmill blades with 7/8" tooth spacing. Additional profile cams may be available separately for other blade types.
Figure 4: Blade Profile Cam. This image focuses on the grinding wheel and the adjustable cam mechanism that controls the sharpening angle and tooth profile.
5. Operating Instructions
5.1 Control Panel Overview
The BMS25 features an easy-to-use control panel with auto and jog control switches. The auto control switch automatically advances the blade for sharpening, while the jog control switch allows for manual blade advancement, useful for initial setup and precise positioning.
Figure 5: Control Panel. This image shows the intuitive control panel of the BMS25, featuring switches for automatic and manual blade advancement.
5.2 Sharpening Process
Once the blade is properly installed and the unit is powered, select the auto mode on the control panel. The sharpener will automatically advance the blade, and the grinding wheel will sharpen the face and gullet of each tooth. The BMS25 can sharpen blades at a rate of up to 30 teeth per minute, significantly reducing sharpening time.
Video 1: Wood-Mizer BMS25 Sawmill Bandsaw Blade Sharpener in Action. This video demonstrates the setup, operation, and key features of the BMS25 sharpener, including blade installation, power connection, and the automatic sharpening process.
5.3 Grinding Wheel Shaping
Use the included wheel shaping tool to maintain the correct profile of the 5" grinding wheel. Regular shaping ensures optimal sharpening performance and extends the life of the grinding wheel.
6. Maintenance
- **Cleaning:** Regularly clean the sharpener to remove sawdust and metal particles. Use a dry cloth or compressed air. Ensure the unit is disconnected from power before cleaning.
- **Grinding Wheel Inspection:** Inspect the grinding wheel for wear and tear. Replace the wheel when it becomes excessively worn or damaged to maintain sharpening efficiency.
- **Blade Support Arms:** Keep the blade support arms and rollers clean and free of debris to ensure smooth blade movement during sharpening.
- **Electrical Connections:** Periodically check all electrical connections for tightness and signs of wear.
7. Troubleshooting
This section provides solutions to common issues. For problems not listed here, contact Wood-Mizer customer support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Sharpener does not power on. | No 12V battery connected, battery discharged, or faulty connection. | Ensure 12V battery is connected and charged. Check all electrical connections for secure fit. |
| Blade does not advance automatically. | Index arm not properly engaged, or obstruction. | Verify the index arm is correctly positioned to engage the blade teeth. Check for any debris obstructing the mechanism. |
| Poor sharpening quality. | Worn grinding wheel, incorrect blade alignment, or improper cam setting. | Reshape or replace the grinding wheel. Re-align the blade on the support arms. Verify the blade profile cam setting is correct for your blade type. |
8. Specifications
- **Model:** BMS25
- **Brand:** Wood-Mizer
- **Power Source:** 12V DC (battery sold separately)
- **Sharpening Rate:** Up to 30 teeth per minute
- **Compatible Blade Profiles:** 7/8" tooth spacing (standard 10°/30° cam included)
- **Grinding Wheel Size:** 5 inches
- **Stand:** Compact, adjustable with 1-3/16" diameter legs
- **Item Weight:** 60 Pounds
- **Package Dimensions:** 25 x 23 x 16 inches
- **Manufacturer:** Wood-Mizer
- **Origin:** Built in the USA
9. Warranty and Support
For information regarding product warranty, please refer to the documentation provided with your purchase or visit the official Wood-Mizer website. For customer support, technical assistance, or to order replacement parts, please contact Wood-Mizer directly through their official channels.
Wood-Mizer is committed to providing quality products and support. You can find more information and contact details on their official website: www.woodmizer.com