John Shearer Double Disc Opener - Ideal for zero-till seeding!

Open up new possibilities with the Shearer Double Disc Opener. This versatile equipment is ideal for zero-till seeding and can be fitted to existing John Shearer machines or ordered for new seeding equipment.

The compact and robust parallelogram design of the Shearer Double Disc Opener is suited to a wide range of soil conditions. It allows for the option to fit a tyne opener and can be mounted on either square or diamond beams. Choose from single or double shoot configurations and select between plain or scalloped coulters, or a combination of both.

Benefits include more uniform seeding depth, reduced draft forces, better trash handling, and minimized soil disturbance. It is particularly effective in rocky conditions where disc openers can outperform tynes. The design ensures a smoother soil profile, which helps reduce water run-off and enhances seed germination.

The true parallelogram unit consists of two carriers: one for mounting and one for the ground engaging components and press wheel. The press wheel offers depth control and soil compaction, aiding in seed germination.

Adjustments are easy with a spring pin system that locks the press wheel arm into place, offering 6mm increments over a 50mm travel. The spring-loaded opener features a mechanical screw assembly for pressure adjustments, with a maximum breakout pressure of up to 182kg (400lb). It also provides 254mm (10”) of vertical ground-following capability.

Durability is ensured with hardened pins in high-load areas, extending the operational life of the opener.