Complete Disc Harrow Guide for Indian Farmers
A disc harrow cuts through clods, hard ground and loose crop residue that tynes ride over — its angled, spinning discs slice and turn where a cultivator only stirs. The decision is tandem versus offset, and how heavy your soil is.
- Where it fits
- Clod-breaking & residue incorporation
- Tractor needed
- 35–60 HP (disc count dependent)
- Field capacity
- 0.4–0.7 ha/hour
- Price
- ₹35,000 – ₹1,50,000
- Working depth
- 10–18 cm
- Life
- 12–15 years; discs & bearings are wear parts
Overview
A disc harrow uses two or more gangs of concave steel discs, set at an angle, that cut into the soil and roll — slicing clods, chopping loose residue and turning the top layer as they go. Where a tyne cultivator rides over hard lumps and trash, the disc’s weight and angle drive it through, which makes the harrow the tool for opening compact, cloddy or stubble-covered ground.
It sits between the plough and the seedbed. After harvest a disc harrow chops and mixes loose straw into the topsoil so it rots rather than being burned; before sowing it breaks the ploughed clods down to a workable tilth. A disc penetrates on its own mass, so the useful rule is that a heavier harrow — not a bigger tractor alone — is what gets into hard soil.
This guide covers the choices that matter — tandem versus offset gangs, mounted versus trailed, plain versus notched discs, and the bearing and scraper care that decides whether the gangs keep cutting or start skidding.
Why it earns its place
- Cuts through hard clods and compact soil that a tyne cultivator simply rides over.
- Chops and mixes loose crop residue into the topsoil — a practical alternative to burning stubble.
- The angled discs both cut and partly invert the soil, doing more than a cultivator in one pass.
- Penetrates on its own weight, so it works ground too hard or trashy for lighter implements.
Common uses
- Breaking clods and opening hard or compacted fields after the first ploughing.
- Chopping and incorporating loose crop residue and stubble after harvest.
- Preparing orchard and plantation inter-rows where an offset harrow suits the heavy soil.
- Mixing green manure or farmyard manure into the topsoil before the final seedbed pass.
Types of disc harrow
The choice is the gang layout — tandem for general work, heavy offset for hard or trashy ground — and disc type. Match the weight of the harrow to your soil, because a disc penetrates on its own mass, not on down-force.
Tandem disc harrow
Two gangs set in an X, throwing soil out and then back so the field is left level. The all-round choice for general clod-breaking and residue mixing on normal fields.
- Power range
- For 35–55 HP tractors
- Best for
- General seedbed prep and residue mixing
Offset disc harrow
Two heavier gangs set one behind the other, offset to the side of pull. Built for hard, dry or trash-heavy ground and orchard rows, it penetrates where a tandem skids.
- Power range
- For 45–75 HP tractors
- Best for
- Hard, cloddy or heavily-residued soils and orchards
Mounted (3-point) disc harrow
A lighter harrow carried on the tractor’s three-point linkage, quick to raise, turn and transport. Suits small and medium holdings on lighter soils.
- Power range
- For 35–50 HP tractors
- Best for
- Small-to-medium fields on lighter soil
Trailed (heavy-duty) disc harrow
A heavy, wheeled harrow towed behind the tractor, using its own mass to bite deep over large areas. The contractor’s and large-farm choice for hard land.
- Power range
- For 55 HP+ tractors
- Best for
- Large areas and hard land, contractor use
Popular brands compared
Trade-offs, not a ranking. No brand here is called the best, and nothing on this page is a paid placement.
Fieldking
Budget–midA dedicated implement maker offering tandem, offset and mounted harrows across a wide size range with broad dealer reach.
- Known for
- Wide range and spare availability
- HP range
- For 35–90 HP tractors
Pros
- Many configurations and sizes
- Spares easy to source
- Competitive pricing
Cons
- Bearing quality varies by model tier
Landforce
Mid–premiumAn implement brand with a heavier build focus, popular for offset and trailed harrows in hard-soil districts.
- Known for
- Heavier offset harrows
- HP range
- For 45–90 HP tractors
Pros
- Solid gangs and frame
- Good penetration in hard soil
Cons
- Heavier — needs adequate tractor HP
- Higher price than a basic mounted unit
Local / regional fabricators
BudgetDistrict workshops build mounted disc harrows to a standard pattern at low cost, with repairs and bearing changes available nearby.
- Known for
- Lowest cost and local repair
- HP range
- For 35–55 HP tractors
Pros
- Cheapest way in
- Repaired locally
- Bearings and discs swapped in the village
Cons
- Disc steel and bearing quality inconsistent
- No warranty
- Often light for hard soil
Maintenance timeline
A disc harrow lives or dies on its bearings and disc edge — a seized bearing or a blunt disc means the discs skid instead of cutting. These checks keep the gangs turning and biting.
Before & during the season
- Grease every gang bearing before starting and every 8–10 hours in work
- Check disc bolts and the gang axle nut are tight
- Clear residue wrapped around the gang shafts
- Adjust scrapers so they clean the discs without dragging
Periodically
- Inspect discs for cracks, chips and blunt edges; replace as a set on a gang
- Check gang spools and spacers are tight so discs do not wobble
- Renew worn bearings before they seize and score the axle
End of season / storage
- Wash off soil and residue, especially around bearings
- Coat discs and bright metal with used oil against rust
- Store under cover on level ground, discs off the wet earth
Common problems & fixes
Symptoms, likely causes and what you can safely do before calling a mechanic.
Discs not penetrating the soil
- Symptoms
- The harrow rides on the surface instead of cutting to depth.
- Likely causes
- Harrow too light for the soil, blunt discs, or too shallow a gang angle.
- What to do
- Increase the gang angle, sharpen or replace blunt discs, and add ballast if the frame allows. On genuinely hard ground a heavier offset harrow is the real fix.
Bearing running hot or seizing
- Symptoms
- A gang bearing gets hot, squeals, or the gang stops turning freely.
- Likely causes
- Missed greasing, water and grit in the bearing, or a worn-out bearing.
- What to do
- Grease bearings on schedule, replace any that run hot before they seize and score the axle, and use quality sealed bearings in wet, gritty conditions.
Residue wrapping the gangs
- Symptoms
- Loose straw and vines ball up on the gang shaft and drag.
- Likely causes
- Very long loose residue, discs too close together, or worn scrapers.
- What to do
- Fit and set the scrapers correctly, choose notched discs for heavy trash, and clear wraps before they build — a heavily-residued field may need a lighter first pass.
Uneven or ridged finish
- Symptoms
- The field is left with ridges or hollows rather than level.
- Likely causes
- Unequal gang angles side to side, a frame not running level, or uneven speed.
- What to do
- Balance the front and rear gang angles, level the frame with the top link and wheels, and hold a steady speed with enough overlap between passes.
Buying guide
A disc harrow is bought on weight and bearing quality, not badge — a heavier frame penetrates hard soil that a light one rides over. Judge a used one on its bearings and disc wear above all.
Buying new
Advantages
- Fresh discs, sound bearings and a full-strength frame
- Choice of tandem/offset and the weight your soil needs
- Eligible for SMAM/state implement subsidy
Disadvantages
- Dearer than a used harrow
- A heavy offset unit is overkill for light soil
Buying used
Advantages
- A heavy frame outlasts several sets of discs and bearings
- Well below new price
- Discs and bearings are cheap, standard wear parts
Disadvantages
- Inspect bearings and disc wear closely
- No warranty
- Bent gang axles are costly to fix
Inspection checklist
- Weight and type (tandem/offset) matched to your soil
- Gangs spin freely with no rough or noisy bearings
- Discs not worn small or badly chipped; edges still cutting
- Gang axle nuts and spacers tight, discs not wobbling
- Scrapers present and adjustable
- Sound frame welds and, on trailed units, good transport wheels and tyres
Government subsidy & finance
The routes that bring the cost down — central, state and credit.
SMAM (Sub-Mission on Agricultural Mechanization)
Disc harrows are covered under the central mechanization subsidy on the approved price, at higher rates for SC/ST, women and small/marginal farmers, applied through the state portal.
Crop Residue Management (CRM)
Because a disc harrow incorporates loose residue instead of burning it, heavy-duty harrows can qualify under CRM machinery lists in the paddy-belt states — often at a higher subsidy.
Custom Hiring Centre (CHC)
A heavy offset harrow is expensive to own for a small farm; hiring one with a suitable tractor from a CHC is often the sensible route for occasional hard-ground work.
Subsidy rates, caps and eligibility vary by state and year and change with each scheme cycle. Confirm the current figure with your block agriculture office or the official state portal before you buy.
Safety essentials
The discs are heavy and razor-edged, and the gangs keep turning after you stop. Most injuries happen during transport and while clearing wrapped residue — treat every disc edge as sharp.
The disc edges are sharp even when blunt for cutting — wear gloves and keep hands clear when clearing wraps.
Lower the harrow and switch off the tractor before touching the gangs or scrapers.
On trailed harrows, lock the transport latch and check wheels and lights before road travel.
Keep bystanders well clear; the gangs keep turning for a moment after the tractor stops.
Raise the harrow and slow at the headland — a lowered offset gang pulls the tractor sideways.
Official downloads
Government portals only — everything below is hosted on an official server.
Frequently asked questions
What is the difference between a disc harrow and a cultivator?
A cultivator drags pointed tynes that stir already-ploughed soil and kill weeds cheaply, but it rides over hard clods and loose residue. A disc harrow uses heavy, angled spinning discs that cut through clods and chop trash, penetrating on their own weight. Use a cultivator for light stirring and weeding, and a disc harrow when the ground is hard or covered in residue.
Tandem or offset disc harrow — which do I need?
A tandem harrow is the general-purpose choice: it leaves a level field and suits normal seedbed work and residue mixing. An offset harrow is heavier and built for hard, dry or trash-heavy ground and orchard rows, where a tandem would skid on the surface. Choose by how hard your soil is, not by price.
How much tractor HP does a disc harrow need?
It depends on weight and disc count more than width. A light mounted harrow runs on about 35–45 HP, a heavier tandem wants 45–55 HP, and a heavy offset or trailed harrow needs 55 HP or more. Because a disc penetrates on its mass, a heavier harrow — matched to enough HP to pull it — beats forcing a light one deeper.
Plain or notched discs — what is the difference?
Plain (smooth-edged) discs give a cleaner cut and level finish in normal soil. Notched (cut-away edge) discs grip and chop loose residue and hard, dry clods better, so they are the choice when incorporating stubble or working trashy ground. Many harrows run notched discs on the front gang and plain on the rear.
Still deciding?
The FAQs above cover the common questions. For a choice tuned to your exact soil, crop and acreage, your nearest Krishi Vigyan Kendra or a Custom Hiring Centre is the authoritative next step.