Peg Rod

Buy String Line Rod | Peg Rod for PQC or Paver

Aspire Enterprises is a trusted peg-rod manufacturer in India for PQC road construction and sensor paver grade control. Our string line rods anchor the wire that the paver follows for line and level, so when our rods sit straight and true, the finished pavement does too. The paver is faithful to whatever the string line tells it, which is why the rod has to be made to a consistent diameter, kept straight on dispatch, and finished to resist the corrosion that monsoon site conditions throw at it.

We supply peg rods for PQC, peg rods for pavers, and the matching sensor rod and holder used with leading sensor systems on national highway and expressway paving projects. Every rod is precision straightened and finished for reliable on-site use across multiple paving runs. Highway contractors, equipment rental firms, and civil engineering teams across India source from us because the dimensional consistency removes the on-site delay that out-of-spec rods cause.

What is a Peg Rod?

A peg rod, also called a string line rod, is a steel stake driven into the prepared sub base alongside the paving lane. A bracket on the rod carries the sensor wire at the design grade and offset. As the slipform paver moves forward, sensors on the machine ride the wire and continuously adjust the screed to follow the line. The peg rod is the structural foundation of this whole system. Anything that moves the rod moves the line, and anything that moves the line moves the slab profile.

Peg rods, sensor wire, the winch stand, and the sensor rod together form the complete string line grade control system. The peg rods stand at regular intervals along the paving lane, the brackets and sensor rods carry the wire at the design grade, the sensor wire is the line itself, and the winch stands tensions the wire from the trailing end of the run. Take any one component away and the grade control reference loses accuracy.

Sizes Available: 16 mm, 19 mm and 20 mm 1 m Peg Rod

Aspire Enterprises stocks every common peg rod size used on Indian paving projects. The size is matched to the sensor bracket of the slipform paver. The 19 mm 1 m peg rod is the most common size on Indian highway PQC projects because it fits the standard sensor bracket on Wirtgen and Vogele machines. Lighter sensor configurations use the 16 mm peg rod, while heavier sensor brackets and bridge ramp work use the 20 mm peg rod.

The 1-meter length is the standard for highway PQC paving. The rod is driven into the subbase to the required depth, leaving enough length above ground for the bracket and sensor wire to sit at the design grade.

Sensor Rod and Holder

The sensor rod is the shorter precision rod that fits into the holder on top of the peg rod and carries the sensor wire directly under the paver arm. Our sensor rod is supplied at 9 mm and 10 mm diameters and 450 mm length, with a holder tapped 10 to 11 mm deep for bolting. The sensor rod has to be precision straightened and finished to a tight tolerance because the paver sensor reads its position to the millimeter. Even a small bend in the sensor rod telegraphs into the finished surface as a wave.

Buyers searching for sensor rods, peg rod sensors, or peg rods and string lines for sensor pavers will find both the peg rod and the matching sensor rod and holder in our standard catalog. We supply the three components on a single purchase order, so the grade control accessory set arrives complete.

Peg Rods and String Line for Sensor Paver

The complete string line setup uses peg rods driven at regular intervals, brackets, a Dowel Bar Sleeve that carries the wire at the design grade, sensor wire stretched between the rods, and a winch stand that tensions the wire. The paver follows the wire faithfully, so every component in the chain has to be accurate. A wobbly peg rod, a loose holder, or a sagging wire all show up as waves in the finished slab.

A peg rod that can move is the most common cause of an inaccurate string line. Drive the rod into the sub base with a maul, check it is vertical, and confirm the bracket sits at the design grade before the paver starts. Closer spacing is used on curves and vertical grade changes so the string line follows the design without straight chord sag. For full string line accessories, also consider our sensor wire and winch stand supplied as a complete system.

Peg Rod Specifications

After paving, extract the rod with a slide hammer or claw, clean off any concrete or DLC residue, straighten any minor bends, and store the rod horizontally. A well-maintained peg rod gives many paving runs of service. Use a rust-resistant surface treatment between runs in monsoon conditions, and the rod will hold its dimensional accuracy across multiple projects.

Buy a peg rod for PQC road construction in India online.

Aspire Enterprises supplies peg rods, sensor rods, and holders directly from the factory at manufacturer pricing. Tell us the diameter, length, and quantity, plus the sensor rod and holder count if required, and the team will confirm stock and dispatch the same business day. Multi-project rental firms and large contractors set up planned supply so the rods are on-site when the paver arrives.

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Why Aspire Enterprises for Peg Rod

• All standard sizes are in stock: 16 mm, 19 mm, and 20 mm. 1-meter peg rods are ready for dispatch from the same-day business order.
• Precision is strengthened: Tight tolerance ensures accurate string line positioning across the run with no waves induced by bent rods.
• Sensor rod and holder available: Buy the complete grade-control accessory in a single purchase order.
• Reusable: Driving, paving, removal, and reuse across multiple paving lifts is the most economical way to use the rod.
• Pan-India delivery: Dispatch to NHAI, state highway, and expressway sites across India with confirmed freight dates.

Conclusion

A peg rod looks like a simple piece of steel, but it is the anchor that holds the grade reference for an entire paving run. With the specified diameter, driven firmly, and fitted with a precision sensor rod and holder, it gives the paver the accurate signal it needs. Aspire Enterprises supplies 16 mm, 19 mm, and 20 mm peg rods, sensor rods, and holders, ready for dispatch to PQC paving sites across India