Tines vs Discs: Which is better and why?

Why Tines?

This summer has been another busy one for us at Dale Drills, with production in full swing and exhibitions like Lamma and Groundswell providing valuable opportunities to connect with new and existing customers. These events always spark interesting discussions, but one question comes up time and again:

“Why tines instead of discs?”

As a tine drill manufacturer, we naturally favor tines, but our preference is based on careful consideration. The three key factors that set tines apart from discs are:

✅ Disturbance
✅ Weight
✅ Cost

1. Soil Disturbance

Tine drills inevitably create more soil movement than disc drills. However, this disturbance can be minimised by:
✔ Using narrower tines at a shallower depth
✔ Reducing the forward angle of the point

While minimal disturbance is often preferred to limit weed germination (e.g., blackgrass), delayed autumn drilling into wetter soils is a common agronomic strategy. In these conditions, narrow forward-facing tines, such as our Eco Tine, provide significant benefits:

Avoid smearing, ensuring proper seed coverage
Improve seed-to-soil contact for better germination
Prevent herbicide damage, as soil fully covers the seed

The Eco Tine is designed to create optimal disturbance, placing seed into fine tilth while avoiding compaction and smearing. At just 12mm wide, it drills approximately 10mm below seeding depth, achieving excellent results.

2. Weight & Soil Compaction

Tine drills require significantly less weight to penetrate the soil compared to disc drills. This is because:

Tines pull themselves into the soil, generating a natural downward force
Discs require weight to be pushed down, increasing compaction risk

The lighter weight of tine drills is especially beneficial in no-till and wet conditions, where avoiding compaction is crucial. A lighter machine allows:

Wider working widths for increased efficiency
Smaller tractors to pull them, reducing soil traffic
Lower overall weight, minimizing compaction risk

For delayed autumn drilling, when time is tight and soils are often wetter, wider and lighter tine drills help maximise output while protecting soil structure.

3. Cost & Durability

Tine drills offer a cost-effective solution with fewer moving parts and lower maintenance requirements. Key advantages include:

✔ No bearings or complex mechanisms
✔ Lower wear rates compared to disc drills
✔ Easier and cheaper part replacement

Our Eco Tine is made from Boron Steel and tipped with Tungsten Carbide, delivering an average lifespan of 500 acres per meter of drill. For example, a 6m Eco Drill can cover approximately 3,000 acres on one set of tines (soil type dependent).

With fewer replacements and simpler maintenance, tine drills deliver long-term savings and greater reliability in the field.