PTO-Driven Disc Plow Manufacturing at SUNYA
Jiangsu SUNYA Machinery Ltd. is a Power-Driven Disc Plow manufacturer supplying PTO-driven primary tillage implements for tractors from 80 to 180+ HP. The machine mounts on a three-point hitch, takes drive from the power take-off through a gearbox and side gear train, and rotates 610 mm or 660 mm manganese steel discs through the soil as the tractor moves forward. We build six-disc to twelve-disc versions with working widths of 164–332 cm and tillage depths of 15–25 cm, setting disc configuration, depth, gearbox ratio and frame reinforcement around the soil and the tractor fleet the machine will work with.
The disc gang is an actively driven assembly, not a rolling element dragged through the ground. Power reaches it through the gearbox and an offset side gear housing, so the blades are already turning when they meet the surface. That is the basis of the machine's behaviour in tillage equipment work: stronger penetration in hard ground and a steadier cut where draft-only implements struggle.
How Active Disc Rotation Changes Field Performance
Drive-assisted rotation combines with forward travel to cut, break, turn and bury residue in a single pass. In heavy clay, compacted headlands and stubble-covered land, the powered discs hold depth instead of riding over the surface.
- Cutting and pulverisation — powered disc speed adds a slicing action to the forward cut, producing finer clods than a passive disc gang.
- Residue handling — straw and stubble are cut and incorporated during the pass rather than accumulating ahead of the discs.
- Compacted layer break-up — 15–25 cm working depth reaches plough pans and traffic-compacted horizons in one operation.
- Fewer passes — primary tillage and residue incorporation happen together, which reduces total field time and fuel per hectare.
Disc diameter sets the depth band. The 610 mm blades run at 15–20 cm for standard primary tillage; the 660 mm blades run at 20–25 cm where deeper loosening is required.
Model Range: Disc Count, Working Width and Tractor Matching
Six frame sizes cover the range. Working width scales with disc count, and the widest frames move to double-side gear drive to distribute drive load across the gang.
| Model | Overall dimension (cm) | Matching horsepower | Disc plates | Working width (cm) | Depth, Ø610 mm (cm) | Depth, Ø660 mm (cm) | Transmission |
|---|---|---|---|---|---|---|---|
| 6-disc | 151×212×125 | 80–90 | 6 | 164 | 15–20 | 20–25 | Single-side gear drive |
| 7-disc | 151×240×125 | 90–120 | 7 | 192 | 15–20 | 20–25 | Single-side gear drive |
| 8-disc | 151×283×125 | 120–140 | 8 | 220 | 15–20 | 20–25 | Single-side gear drive |
| 9-disc | 151×296×125 | 140–160 | 9 | 248 | 15–20 | 20–25 | Single-side gear drive |
| 10-disc | 151×324×125 | 160–180 | 10 | 276 | 15–20 | 20–25 | Single/double-side gear drive |
| 12-disc | 151×380×125 | Above 180 | 12 | 332 | 15–20 | 20–25 | Double-side gear drive |
Application Fit by Soil, Residue and Field Scale
The agricultural disc plow is a primary tillage machine for ground that resists a draft-only implement. Its strongest fit is where soil strength, compaction or residue load limits the depth a conventional disc plow can reach.
- Heavy clay and compacted fields — powered blades penetrate and loosen where passive discs ride over the surface.
- High residue and stubble loads — maize, wheat and rice stubble is cut and incorporated in the same pass, preparing ground for the following seedbed operation.
- Large-scale and intensive land preparation — the 276–332 cm frames suit modern farmland development where area per day drives implement choice.
- Mixed soil farming — clay, sandy loam and heavy wet soils are covered across our tillage range, with disc diameter, depth and frame reinforcement selected per soil condition.
On lighter, stone-free loams where a single shallow pass is enough, a Rotary Tiller usually covers the job with a lower power demand.
Configuration Options and Custom Builds
Several models we ship in volume began as customer-specific builds. Custom production is a core part of what we do, and we develop machines from drawings, samples or a described field requirement.
| Configuration variable | What we work within | Effect in the field |
|---|---|---|
| Disc plate count | 6 to 12 discs | Sets working width from 164 cm to 332 cm and the required tractor power band |
| Disc diameter | Ø610 mm or Ø660 mm | 610 mm runs 15–20 cm depth; 660 mm runs 20–25 cm depth |
| Transmission layout | Single-side or double-side gear drive | Double-side drive shares drive load on the widest 10- and 12-disc frames |
| Blade shaft and blade angle | Adjusted per build | Influences soil turning, residue flow and pulverisation |
| Gearbox ratio | Matched to tractor PTO and working speed | Keeps disc speed in the productive range at the forward speed you use |
| Frame reinforcement | Standard or heavy-duty | Reinforced versions for harsh field conditions and continuous duty |
Tractor Matching, Hitch and PTO Integration
Matching horsepower increases with disc count: 80–90 HP for the 6-disc frame, 90–120 HP for 7-disc, 120–140 HP for 8-disc, 140–160 HP for 9-disc, 160–180 HP for 10-disc, and above 180 HP for the 12-disc frame.
- Three-point hitch mounting with PTO shaft drive from the tractor
- Dedicated offset housing that protects the drive shaft in work
- Gearbox ratio selected against PTO speed and your normal forward working speed
- Localised adaptation to tractor power and farming practice where a market requires it
Discs, Wear Parts and Serviceability
Wear resistance is concentrated where the machine meets abrasive soil. The 610 mm and 660 mm rake blades are manganese steel, the tail wheel is manganese steel for body balance and depth stability, and the frame gantry is reinforced to resist deformation under heavy pressure. Alongside complete machines we manufacture mechanical parts including blades, harrow tines and bearings, which keeps replacement components available for routine maintenance.
Manufacturing Capacity and Quality Control
SUNYA manufactures in a 20,000 m² facility with six energy-efficient production lines and an annual output exceeding 2,000 complete machines. Cutting, welding, machining, painting and final assembly are completed in-house under ERP-based production management, which keeps lead times stable across repeat and bulk orders.
- Inspection at every manufacturing stage, from welding through machining to painting
- 100% final inspection of finished machines against customer specifications and international standards
- Reinforced key components selected for long-term wear resistance in high-frequency operation
- Standardised export packaging and container loading, with sea freight from Lianyungang Port 50 km from our site
Information We Use to Configure Your Solution
A proposal that holds up in the field starts from the working point rather than the catalogue. These are the details we use to fix model, disc size, gearbox ratio and frame specification.
- Tractor make, model and rated horsepower at the PTO, plus PTO speed
- Soil type and condition: heavy clay, compacted layers, sandy loam or heavy wet ground
- Required tillage depth and whether the target is 15–20 cm or 20–25 cm
- Residue type and volume from the preceding crop
- Field size, target hectares per day and the sequence of passes you plan
- Quantity, order pattern, destination port and preferred shipping terms
- Local service capability and the spare parts you want to stock
Tillage Machinery Built Alongside the Disc Plow
Our range covers paddy tillage, land preparation and seeding and fertilising implements, so a full pass sequence can come from one manufacturing source. The Disc Plow & Rotary Tiller Combination pairs primary ploughing with rotary cultivation for ground that needs both actions, while our Paddy Puddler & Leveler, Bund Former, Tillage, Furrowing, Seed & Fertilizer Drill and Rotary Ditcher cover paddy preparation, ridge forming, seeding and ditching duties.
Frequently Asked Questions
What tractor horsepower does a SUNYA Disc Plow need?
The 6-disc frame needs 80–90 HP, 7-disc 90–120 HP, 8-disc 120–140 HP, 9-disc 140–160 HP and 10-disc 160–180 HP. The 12-disc frame with 332 cm working width suits tractors above 180 HP.
Should I choose 610 mm or 660 mm discs?
Disc diameter sets the depth band. Ø610 mm blades work at 15–20 cm for standard primary tillage, while Ø660 mm blades reach 20–25 cm where deeper loosening of compacted horizons is required.
Can the machine handle heavy clay and heavy crop residue?
Yes. Powered disc rotation gives strong penetration in compacted and heavy clay soils, and it cuts and incorporates straw and stubble in a single pass rather than letting residue build up ahead of the discs.
What is the difference between single-side and double-side gear drive?
Single-side gear drive transmits PTO power to the disc gang from one side of the frame and covers the 6- to 9-disc models. Double-side gear drive splits the load across both ends of the gang and is used on the widest frames, including the 12-disc model.
Can working width, depth or gearbox ratio be adapted to my tractor?
Yes. We adjust working width, tilling depth, blade shaft, blade angle and gearbox ratio, and we build reinforced versions for harsh field conditions. Development can start from your drawings, a sample or a described farming requirement.
How are machines inspected and shipped?
Every production stage is inspected and each finished machine passes 100% final inspection against customer specifications and international standards before export packaging. We ship mainly by sea freight from Lianyungang Port, 50 km from our factory, with air freight arranged for urgent shipments.

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