Mortisers
Collection: Mortisers
Mortisers are precision woodworking machines designed to cut square or rectangular holes—mortises—in wood for joinery applications like furniture, cabinetry, and architectural millwork. Whether you're producing frame-and-panel doors, routing mortise-and-tenon joints, or cutting lock mortises, a quality mortiser delivers repeatability and speed that hand chiseling cannot match. Pittsburgh Spray Equipment carries benchtop and floor-standing models from trusted industrial brands: Powermatic offers compact, single-phase benchtop mortisers ideal for small shops and jobsites, while Grizzly Industrial provides heavy-duty horizontal slot mortisers built for higher production volumes. The key differences between models lie in motor horsepower, table travel, stroke length, and power requirements. Single-phase machines like the Powermatic PM701 run on standard 115/230V shop circuits; larger floor models may require dedicated 220V or three-phase service. Selecting the right mortiser depends on your material type, hole depth/width capacity, production throughput, and available floor space.
How to Choose the Right Mortisers
- Confirm mortise opening capacity: width, length, and depth limits meet your typical joinery specifications.
- Verify motor horsepower and single-phase vs. three-phase power availability; 3/4 to 1 HP suits most shop work.
- Check table dimensions and stroke travel to ensure adequate workpiece clearance and repetitive positioning.
- Review chisel set compatibility and availability; standard sizes (1/4", 3/8", 1/2") should be readily sourced.
- Assess footprint and mounting: benchtop models save floor space; stand-mounted units require dedicated real estate.
- Confirm fence and depth stop precision; adjustability and locking mechanisms prevent drift during production runs.
- Evaluate warranty coverage and local service support; industrial brands typically offer 1–2 year parts coverage.
Model Comparison
| Model | Mortise Capacity (W×L×D) | Motor / Voltage | Configuration |
|---|---|---|---|
| Powermatic PM701 | Up to 1/2" × 3" × 2-1/2" | 3/4 HP, 1PH 115/230V | Benchtop |
| Powermatic 719T | Up to 5/8" × 4" × 3" | 1 HP, 1PH 115/230V | Tilt Table with Stand |
| Grizzly Industrial Horizontal Slot Mortiser | Up to 1" × 8" × 4" | 2 HP, 3PH 220V | Floor-Standing |
| Grizzly Industrial Heavy-Duty Mortiser With Stand | Up to 3/4" × 6" × 3-1/2" | 1.5 HP, 1PH/3PH 220V | Stand-Mounted |
Frequently Asked Questions
What horsepower do I need for hardwood mortising?
For hardwoods (oak, maple, cherry), 3/4 to 1 HP is adequate for chisels up to 1/2" width at moderate feed rates. Larger chisels (5/8"–1") and high-production runs benefit from 1.5–2 HP to prevent stalling and reduce motor heating. Test your material and chisel size before committing to a smaller machine.
Can I run a 2 HP mortiser on single-phase 220V power?
Most 2 HP mortisers require three-phase power for efficiency and torque stability. Single-phase 220V is available on Powermatic and mid-range Grizzly models up to 1.5 HP. If three-phase is unavailable, confirm your machine's voltage/phase spec before purchase—phase converters add cost and complexity.
What's the difference between benchtop and stand-mounted mortisers?
Benchtop models (Powermatic PM701) fit tight shops and are portable; limited mortise capacity suits smaller work. Stand-mounted units like the Powermatic 719T and Grizzly Heavy-Duty offer greater table area, deeper strokes, and tilt tables for angled mortises—ideal for production shops with dedicated space.
How do I choose between Powermatic and Grizzly mortisers?
Powermatic specializes in compact, single-phase benchtop and tilt-table machines—perfect for small shops and jobsites. Grizzly offers heavy-duty floor-standing and horizontal slot mortisers with larger capacities for medium to high-volume production. Match your throughput, available power, and budget to the configuration that fits your workflow.
Are chisels and augers interchangeable across brands?
No. Each mortiser has a specific square-chisel and hollow-auger drive system. Powermatic chisels fit Powermatic machines; Grizzly uses different geometry. Always purchase replacement chisels and augers from your machine manufacturer or verify compatibility—mismatched tooling causes vibration, breakage, and poor mortise quality.
-
Powermatic - 719T, Tilt Table Mortiser with stand, 1HP 1PH 115/230V
- Regular price
-
$1,979.00
See Lower Price in Cart
-
Powermatic - PM701, Benchtop Mortiser, 3/4HP 1PH 115/230V
- Regular price
- $1,154.00
- Sale price
- $1,154.00
