Heavy-duty and built to perform, the Bobcat® DT20 places seeds directly into soil slits for fast germination and unmatched seed-to-soil contact, aeration, and overseeding.
Overseeder with dethatching capabilities through a simplified transition process to exchange flail reels between the functionality.
Cover 18,700 square feet per hour with a 19 in. working width
Without any tools, easily change between five different reel types
Self-propelled operation
Overseed with confidence. Seed flow rate is easily controlled right from the operator’s station and stops automatically when the reel is raised.
Adjust durable cutting blades down to a depth of .25 in. while seeding at variable rates for different grass varieties and applications.
Experience maximum germination with curve-shaped discs that place seeds directly into soil slits for unmatched seed-to-soil contact.
Finish jobs without feeling exhausted with self-propelled operation, delivering a consistent ground speed that makes for better results.
Independent ground and reel drive with a transport lever make it easy to move around the jobsite.
Features may include:
Productive Working Width
Whether you’re working in tight areas or tackling large lawns, Bobcat dethatchers (or overseeders) cover more ground. Command 19 inches of dethatching width with every pass, depending on the model.
Precise Blade Adjustment
A simple height adjustment lets you fine-tune your dethatcher's slicing depth. (Exact depths depend on blade type used).
Slit Seeding Disc Delivery System
The Bobcat D20 overseeder places seed directly into the soil slits for a germination rate of over 90% for lush, rejuvenated lawns. The seed flow rate can be easily controlled from the operator's station and stops automatically when the reel is raised.
Turf Tires
Standard turf tires improve your traction and maneuverability while minimizing damage to turf.
Proven Heavy-Duty Design
Bobcat dethatchers feature a heavy-duty frame and durable construction for years of reliable service.
11 hp Honda GX390 Engine
The 11 hp Honda GX390 engine provides all the power and performance you need to tackle the most challenging projects.
All Operating Controls at the Handlebar
All controls are conveniently located at the handlebar for convenient operation.
Easy Lift and Lower Transport Mechanism
The transport lever allows you to quickly engage or disengage the dethatcher (or overseeder) for an effortless transition from working mode to transport mode and back.
Self-Driven Drivetrain
With the self-driven drivetrain, you’ll get reliable, smooth performance and easy operation that minimizes fatigue.
Choice of Flail Blade for Power Raking and Four Fixed-Blade Reels
In addition to overseeding, the DT20 can be converted to dethatch, power rake or verticut by installing a flail reel or choice of fixed blade.
40 lb. Seedbox
The 40-pound seedbox provides productive seeding performance. Plus, a handy seed germination chart makes it easy to set seed application for the task.
Photos
Highlights
Houston, Texas
2025
Ryan®
Dethatcher & Overseeder DT20
Available
Specifications
2025
Ryan®
Dethatcher & Overseeder
DT20
Walking
Honda
Model: GX390
11.7 hp
24 cubic in
4L-section V-belt to front wheels by gear box and sealed roller chain; triple 3V-section V-belts engine to reel
Maximum Reel: 3200 rpm | Max Recorded Operating: 2.4 mph
Welded 7-gauge steel
Seed Hopper Capacity: 19 in
35.5 in
50 in
44 in
Seeding Blade: 0.2 in | Fixed Blade: 0.25 in
Seed: 19 in
1.6 gal
453 lbs
Seeding System: Seed is dropped directly into soil slits via seed delivery tube and covered in soil by disc system | Included Blade Reel: Seeding Blade | Flail Blade Type: 1/8 in (3 mm) hardened, high-carbon steel blades at 1 in (25 mm) spacing | Depth Adjustment: Microscrew adjustment; adjustable up to 1.25 in (32 mm) for blade wear
Fixed Blade Type: Hardened, high-carbon steel blades:1/32 in (1 mm) at 1/2 in (13 mm) spacing1/32 in (1 mm) at 1 in ( 25 mm) spacing1/16 in (2 mm) at 1 in (25 mm) spacing 1/16 in (2 mm) at 1 1/2 in (38 mm) spacing | Seeding Bladxe Type: (10) 8 point, high carbon, heat treated blades, 2 in (51 mm) spacing