A pneumatic pallet nailer is a hand-held tool that uses compressed air to drive coil-collated nails through deck boards into stringers or blocks. Pallet models take long, thick nails (roughly 3 to 5 inches, or 76–130 mm) and run at about 70 to 120 psi (4.9–8.3 bar), so success depends on the right tool, nail and compressor working together.
How a pallet coil nailer works
A coil nailer holds a long wire-collated strip of nails wound into a coil inside a magazine. When the operator presses the nose against the work and pulls the trigger, compressed air pushes a piston and driver blade that fires one nail. The magazine then advances the next nail automatically. Coils hold a couple of hundred nails, so reloading is infrequent compared with strip nailers.
Pallet nailers differ from framing or roofing tools in three ways: they handle much longer and thicker nails, they are built for continuous heavy duty, and they often have a contact trip (bump-fire) mode for speed on repeat placements. A representative US model for pallet work lists a magazine capacity of up to 225 fasteners, nail lengths of 3 to 5-1/8 in, nail diameters of 0.120 to 0.148 in (3.0–3.8 mm) and a weight of about 13 lb (5.9 kg); it is designed for 15° wire-collated nails. Lighter models designed for 2-1/4 in (57 mm) nails are used on thinner stock and crates.
Nail types and sizes
Nail choice matters more for pallet strength than the tool does. Nails used in pallets generally fall into three groups:
| Nail shank | Holding power | Notes |
|---|---|---|
| Smooth | Lowest | Cheap; loosens with vibration and moisture cycling |
| Ring-shank (annular) | High | Rings resist withdrawal; common in reusable pallets |
| Helical (spiral) | High | Twists as driven, gripping the wood fibers |
Length must penetrate the stringer or block well beyond the deck board without protruding on the far side. Diameter must suit the wood: dense hardwoods need predrilling-free but thinner nails or tools with enough power, otherwise boards split. The details on specifications and materials are in pallet nails and fasteners.
A key warning concerns compatibility: nails must match the tool's collation angle (for example 15° wire coil) and magazine. Mixing collation types can jam the tool and is an injury risk.
Compressor and air supply
The nailer is only as good as its air supply. Pressure drop and low volume lead to under-driven nails and slow cycles.
- Pressure. Operate within the tool's range, commonly 70–120 psi (4.9–8.3 bar). Higher pressure drives nails deeper but also overdrives them in softwood, breaking the surface.
- Volume. Size the compressor to the sum of all tools running at once, with a margin. Tool manuals state air consumption per cycle; multiply by the cycle rate and the number of operators.
- Hoses and fittings. Use hose diameters recommended by the manufacturer. Long, narrow hoses and restrictive couplers cause pressure loss at the tool.
- Air quality. Install filters and dryers; water in the line washes away lubrication and corrodes the tool. An in-line lubricator or periodic manual oiling is required where the maker specifies it.
- Receiver tank. A large tank smooths demand peaks when many nails are fired in quick succession.
Compressor sizing figures vary by tool, so a rule of thumb without the specific tool's air consumption would be misleading; use the manufacturer's data sheet.
Daily and periodic maintenance
Pallet nailers work under harsh conditions: dust, resin, moisture and constant cycling. A basic routine prolongs life:
- Daily. Drain water from the compressor tank and filter bowls, apply a few drops of pneumatic tool oil to the air inlet if specified, check hose connections, and clear dust and resin from the nose and magazine.
- Weekly. Inspect the driver blade, nose piece and contact trip for wear or damage, check magazine feed pawls, and tighten screws.
- Periodically. Replace O-rings, bumpers and seals following the manual; keep a repair kit on hand. Replace the driver if the nail head is not centered on the hit.
- Always. Disconnect air before clearing jams or servicing.
Tools that are cleaned and rebuilt on schedule keep their drive depth consistent, which in turn supports quality control in pallet production. A broader program is described in maintaining pallet machinery.
Safety rules
Nail guns cause a large share of injuries in woodworking and construction, mainly from unintended discharge and nails through hands or feet. Common precautions include:
- Wear eye and hearing protection and appropriate gloves.
- Keep fingers and free hand clear of the nailing zone.
- Do not defeat the contact trip or remove safety features.
- Use the sequential trigger mode when accuracy matters more than speed.
- Never point the tool at anyone; disconnect it when not in use.
- Do not exceed the rated air pressure.
Employer duties and local regulations differ by country, but the principles are described in safety in pallet plants and sawmills.
Choosing between hand tools and machines
Hand nailers are flexible, cheap and sufficient for custom pallets. Their limits are operator fatigue and speed. When pallet types repeat in volume, nailing machines with gang heads are more productive, as described in pallet nailing machines. Many plants combine both: automatic lines for main sizes and hand nailers for repairs and specials.
Frequently asked questions
What size nails do pallet nailers use?
Heavy-duty pallet models take roughly 3 to 5 inches (76–130 mm) in length and about 0.120 to 0.148 inch (3.0–3.8 mm) in diameter. Smaller tools use around 2-1/4 inch (57 mm) nails for lighter work.
What air pressure is needed for a pallet nailer?
One widely used model specifies 70 to 120 psi (4.9–8.3 bar). Always follow the data plate on the specific tool.
Why do nails bend or sit above the board surface?
Common causes are low air pressure, a worn driver blade, damp or hard wood, or nails that do not match the tool. Check pressure and consumables first.
Can any nailer be used with any coil of nails?
No. The collation angle, nail diameter and length must match the tool's specification.
Sources
- PalletPro130XP coil nailer — Senco
- PalletPro57FXP coil nailer — Senco
- EVERWIN PN57B 2-1/4 in coil nailer — Linc Systems
- Pallet Nailing Machine Review — Pallet Enterprise