Municipal, highway and contractor crews require consistent post placement, controlled installation and tooling matched to their equipment. Square sign post drivers connect compatible percussion hammers to perforated steel posts used in traffic and facility signage.
Installation requirements for square steel posts
Perforated square steel tubing, including Telespar-style posts, is popular for traffic signs, delineators and safety barriers because it's strong and easy to adjust. The weakness is the top of the post, which takes the beating when you drive it.
Driving posts by hand causes a few predictable problems:
- Slow, tiring work. Repeated manual driving places sustained physical demands on the operator.
- Deformed post tops. Mushroomed or crushed ends make it hard to attach hardware and look unprofessional.
- Crooked posts. Off-centre impact can affect alignment and require corrective work.
- Safety risk. Overhead swinging and repetitive strain are a common source of injuries on sign crews.
Square post drivers for compatible percussion hammers
A square sign post driver is a steel attachment that fits into the chuck of a demolition hammer, breaker or pneumatic hammer. Its square socket slips over the top of the post and holds it in line while the hammer delivers the energy. A correctly matched assembly transfers the hammer's percussion through the driver to the post.
The Madido Telespar / Square Sign Post Driver is built for this job:
- Made in Canada from heat-treated, high-strength alloy steel
- Two-piece body with a reinforced square socket for percussion-driven installation
- A square socket that keeps the post aligned and helps prevent damage to the post top
- Corrosion-resistant finish for harsh field conditions
How to Choose the Right Driver in Two Steps
Madido makes the driver in a range of configurations, so it fits the equipment you already own.
Step 1: Match the shank to your hammer. Shank options are 7/8" hex x 3-1/4", 7/8" hex x 4-1/4", 1" hex x 4-1/4", 1-1/8" hex x 6", 1-1/4" hex x 6", and Hilti TE-S.
Step 2: Match the socket to your post. Square socket sizes are 1-1/2", 1-3/4", 2" and 2-1/4".
Provide the hammer model and actual post dimensions for a compatibility review before ordering.
Where Square Post Drivers Get Used
- Road and traffic signs: stop signs, speed limit signs, street name signs and more
- Highway delineators, guardrail and safety barrier posts
- Utility and survey marker posts
- Parking lots, campuses and facilities: wayfinding and signage for property managers and schools
Installation and alignment considerations
- Start the post plumb. Set the post upright and check it with a level before the first hit. The driver keeps the line, but a good start helps.
- Seat the socket fully. Make sure the post top sits properly in the socket so energy transfers evenly.
- Use steady, controlled hammering. Let the tool work in short bursts rather than leaning on the hammer.
- Keep an eye on alignment as you go. Check the post before it reaches full depth, when a correction is still easy.
- Match the socket to the post. A properly sized socket gives the best fit and protects the post top.
Equip More Than One Crew
For multi-crew operations, driver quantities can be planned around the equipment fleet. The published quantity offer is 15% off when you buy 2 or more, subject to the current product and order terms.
Specify the driver configuration
The Madido Telespar / Square Sign Post Driver is Canadian-made, available in 24 shank and socket combinations, with availability and delivery confirmed at order.
View Telespar Square Sign Post Driver specifications
For equipment compatibility and quotations, call (514) 737-2400 or email sales@madido.com. See related applications for fence installers and our full range of Driver & Blade Tools.
Telespar is a registered trademark of its respective owner and is used here only to describe post compatibility. Madido is not affiliated with or endorsed by the trademark owner.