A disk sander and spindle sander are versatile woodworking tools, each with a specific purpose and operating method. A disk sander is best for smoothing straight and curved edges, while a spindle sander excels at sanding inside curves and detailed shapes. Both require safety awareness and proper technique for best results and safe operation
A disk sander features a spinning disk mounted on a table, often with an adjustable tilting surface for bevel or chamfer sanding.
How it works: The disk spins rapidly, sanding occurs faster toward the outer edge, so workpieces can be positioned depending on the amount material needed to be removed
Power : Push the red with up to turn it on and push it back down to switch it off
Technique: Always keep the workpiece flat against the table and move it across the downward-rotating side of the disk to avoid kickback. Sand lightly as excess pressure can burn or damage the wood. Tips: Keep your fingers away from the exposed disk
A spindle sander uses a rapidly-rotating, vertical sanding drum (sometimes oscillating up and down as well).
How it works: The drum rotates to efficiently smooth inside curves, holes, or complex edges.
Turning it on: Insert any required safety key, press the on switch, and wait for full speed. For drum changes, disconnect power before swapping spindles using wrenches and replace the table insert each time.
Technique: Choose the spindle size for your curve, press the workpiece gently and evenly against the spindle while bracing on the table, and guide the piece from right to left to prevent kickback.
Tips: Do not force material against the sanding drum. Keep hands clear of the spinning spindle. For sanding curves, use a drum size that matches your desired radius, and never try to remove more than 1/16 inch at a time.
Disk Sander: Perfect for straight edges, outside curves, quick removal, bevels, end grain, and finishing edges. Use it to smooth rough wood edges or shape profiles.
Spindle Sander: Ideal for inside curves, detailed contours, and smoothing saw marks in cutouts or holes. Essential for finished round or curved pieces
Always wear safety glasses, keep fingers away from sanding surfaces, and allow machines to reach full speed before use.
Clean sanders regularly using specified cleaning methods and unplug when changing parts or for maintenance.