Horizontal Band Saw for Metal: How to Choose the Machine, Blade, and Feed Rate
You need a horizontal band saw for cutting metal and you want to know how to choose the right machine, blade, and feed rate. Horizontal band saws are the most common type of saw for cutting metal bar stock, pipe, and structural shapes. You need to know what to look for in a machine, what blade to buy, and how to set the feed rate for clean, efficient cuts.
A horizontal band saw is a saw where the blade runs horizontally and the saw head pivots down to cut through the workpiece, which is clamped in a vise. This design is used for cutting metal bar stock, pipe, tubing, and structural shapes. It is the standard saw type in machine shops, fabrication shops, and maintenance departments.
Choosing the Machine
Size and Capacity
The cut capacity determines the maximum size of material the saw can cut.
| Size | Round Capacity | Rectangular Capacity | Best For |
|---|---|---|---|
| 4x6 | 4 inches | 4x6 inches | Hobby, light shop |
| 5x6 | 5 inches | 5x6 inches | Small shop |
| 7x12 | 7 inches | 7x12 inches | Medium shop |
| 9x16 | 9 inches | 9x16 inches | Production shop |
| 13x20+ | 13 inches | 13x20+ inches | Large production |
How to choose: Measure the largest material you need to cut and add 1 inch for clearance. If you cut 6-inch round stock, you need a 7x12 saw.
Motor Power
More power means faster cuts and less stalling.
| Size | Typical Motor |
|---|---|
| 4x6 | 1/2 HP |
| 7x12 | 1 HP |
| 9x16 | 1-1/2 to 3 HP |
| 13x20+ | 3 to 15 HP |
Speed Control
Step pulley: Multiple fixed speeds. Change the belt position to select the speed. Common on budget saws.
Variable speed (mechanical): Adjustable speed via a dial. Better for cutting different materials.
Variable speed (hydraulic): The most precise speed control. Found on better saws.
Which to choose: Variable speed is better if you cut a variety of materials. Step pulley is adequate if you cut mostly the same material.
Coolant System
A coolant system pumps cutting fluid over the blade and workpiece. Coolant extends blade life, improves cut quality, and clears chips.
Built-in: Standard on better saws. Includes a pump, tank, and nozzles. Optional: Some budget saws have optional coolant kits. Not included: Some budget saws do not have coolant. Can be added with a kit.
Which to choose: A coolant system is essential for production cutting. For occasional use, it may not be necessary.
Feed Type
Gravity feed: The saw head drops by gravity. The downfeed rate is controlled by a hydraulic cylinder or adjustable valve. Common on most saws.
Hydraulic feed: The saw head is pushed down by a hydraulic cylinder. More consistent than gravity feed. Found on better saws.
Which to choose: Gravity feed is adequate for most work. Hydraulic feed is better for production cutting where consistency matters.
Vise
The vise holds the workpiece during cutting.
Quick-release: Allows fast clamping and release. Better for production. Screw-type: Slower but more secure. Common on budget saws. Swivel: Allows angled cuts without repositioning the material. Found on most saws.
Popular Brands and Models
| Brand | Popular Models | Price Range |
|---|---|---|
| Jet | 414557 (4x6), 414560 (7x12) | Moderate |
| Grizzly | G0613 (5x6), G0561 (7x12) | Moderate |
| Baileigh | BS-712, BS-916 | Moderate to high |
| Harbor Freight | 4x6, 7x12 | Budget |
| Wilton | 4455W (4x6), 712V (7x12) | Moderate |
| Ellis | 1800 (6x6) | High |
| DoAll | Various | High |
| Amada | Various | High |
Choosing the Blade
Blade Length
Check your saw’s manual for the correct blade length.
Common lengths:
- 64-1/2 inches (4x6 and 7x12 saws)
- 76 to 93 inches (larger saws)
- Custom lengths for large saws
TPI Selection
| TPI | Best For | Material Thickness |
|---|---|---|
| 6 to 8 TPI | Thick solid bar, heavy plate | 1 to 4 inches |
| 10 TPI | General metal cutting | 1/4 to 2 inches |
| 14 TPI | Medium thickness, smoother cuts | 1/8 to 1 inch |
| 18 TPI | Thin material, sheet metal | Under 1/4 inch |
| 10/14 variable pitch | Mixed material thicknesses | All |
Rule of thumb: At least 3 teeth should be in the material at all times.
Blade Material
Bi-metal M42: The standard. Handles mild steel, stainless steel, aluminum, brass, copper, and cast iron. Cost: 15 to 30 dollars.
Bi-metal M51: Harder edge for tough materials like stainless steel. Cost: 20 to 40 dollars.
Carbide-tipped: The longest lasting. For production cutting. Cost: 50 to 150 dollars.
Recommended Blades
General-purpose: 10/14 variable pitch, bi-metal M42. Handles a range of thicknesses. Thick material: 6 to 8 TPI, bi-metal M42. Coarse teeth for thick stock. Thin material: 14 to 18 TPI, bi-metal M42. Fine teeth for thin stock. Stainless steel: 10 TPI, bi-metal M51. Harder edge for tough material. Production cutting: Carbide-tipped. Longest life for production use.
Setting the Feed Rate
What Is Feed Rate?
The feed rate is the speed at which the saw head lowers the blade into the workpiece. It is controlled by a hydraulic cylinder or gravity feed valve.
How to Set the Feed Rate
Slow feed: For thick or hard material. Prevents blade damage and produces smoother cuts. The saw head drops slowly.
Fast feed: For thin or soft material. Faster cutting but may reduce blade life if too fast. The saw head drops quickly.
Recommended Feed Rates by Material
| Material | Feed Rate |
|---|---|
| Mild steel (thick, 2+ inches) | Slow |
| Mild steel (medium, 1/2 to 2 inches) | Medium |
| Mild steel (thin, under 1/2 inch) | Medium to fast |
| Stainless steel | Slow |
| Aluminum | Medium to fast |
| Brass and copper | Medium |
Signs of Incorrect Feed Rate
Too fast:
- Blade stalling or slowing
- Rough cut surface
- Short blade life
- Broken teeth
- Excessive chip production
Too slow:
- Burning the material (blue discoloration)
- Slow cutting
- Premature blade dulling from rubbing rather than cutting
Setting the Blade Speed
Recommended Speeds by Material
| Material | Speed (FPM) |
|---|---|
| Mild steel (thick) | 60 to 100 |
| Mild steel (medium) | 100 to 200 |
| Mild steel (thin) | 200 to 300 |
| Stainless steel | 60 to 100 |
| Aluminum | 200 to 400 |
| Brass and copper | 100 to 200 |
How to Set the Speed
Step pulley: Change the belt position on the pulleys. Variable speed: Adjust the dial.
Coolant Use
When to Use Coolant
Use coolant for: Steel, stainless steel, and thick material. Skip coolant for: Aluminum (can load the blade), brass, and thin material.
Coolant Types
Cutting fluid: Specifically formulated for metal cutting. Best for most applications. Water-soluble oil: Mixed with water. Common in shop use. Synthetic coolant: Water-based, no oil. Cleaner but may not lubricate as well.
FAQ
What size horizontal band saw do I need?
Measure the largest material you need to cut and add 1 inch for clearance. If you cut 6-inch round stock, you need a 7x12 saw.
What blade should I use for general metal cutting?
A 10/14 variable pitch bi-metal M42 blade. It handles a range of material thicknesses without changing blades.
How do I set the feed rate on a horizontal band saw?
Adjust the hydraulic cylinder or gravity feed valve. Slow for thick or hard material. Fast for thin or soft material. The correct feed rate produces smooth, consistent cuts without stalling.
What speed should I use for cutting steel?
60 to 100 FPM for thick steel. 100 to 200 FPM for medium thickness. 200 to 300 FPM for thin steel. Use the step pulleys or variable speed dial to set the speed.
Do I need coolant for my horizontal band saw?
Yes, for steel and stainless steel. Coolant extends blade life, improves cut quality, and clears chips. For aluminum, skip coolant as it can load the blade.
References
- Jet. “Horizontal Band Saw Owner’s Manuals.” Jet Equipment & Tools.
- Grizzly Industrial. “Horizontal Band Saw Specifications.” Grizzly Industrial.
- LENOX Tools. “Metal Cutting Blade Selection Guide.” LENOX Industrial Division.
- Practical Machinist. “Horizontal Band Saw Setup Tips.” practicalmachinist.com.
- Modern Machine Shop. “Choosing a Horizontal Band Saw.” Gardner Business Media.
