What Are Tedders Used For in Hay and Forage Operations?
Tedders are PTO-driven implements that spread and aerate mown hay or forage to accelerate field drying, reduce baling moisture, and preserve nutrient quality. Tedders lift cut forage from swaths or windrows and scatter the material across the stubble, exposing all plant surfaces to sunlight and airflow.
Drying time reductions of 30–50% are typical when tedders spread forage within 2–4 hours of mowing. Contractors running 3–4 cuttings per season, dairy operators targeting high-RFV forage, and custom hay operations all rely on tedders to protect crop value and maintain baling schedules.
What Does "Tedder" Mean?
A tedder is an agricultural implement designed to spread freshly cut forage for faster, more uniform drying. Modern tedders are PTO-driven machines — either mounted on a 3-point hitch or trailed behind a drawbar — that use spinning rotor arms with spring-steel tines to lift and throw crop material.
Tedders spread forage; rakes gather it. A tedder opens and aerates a swath across a wide area, while a rake consolidates dried forage into windrows for baling. The two implements serve opposite functions in the same harvest sequence.
Why Is It Called a Tedder?
The word "tedder" comes from the Middle English "tedden," meaning to spread newly mown grass for drying. Before mechanization, farmhands turned hay by hand with pitchforks — a process called tedding. Horse-drawn tedders appeared in the mid-1800s.
Modern PTO-driven rotary tedders replaced horse-drawn and ground-driven designs in the mid-20th century. The core function — spreading cut forage for sun and air exposure — remains identical to the original hand-tedding practice.
How Do Tedders Improve Hay Drying Time?
Tedders reduce hay drying time by 30–50% by flipping and spreading forage so air circulates evenly around all plant surfaces. Moisture wicks from cut stems through exposed leaf surfaces. Tedding breaks the compressed swath mat and exposes the wet underside to direct sunlight.
Hay tedded within 2–4 hours of cutting reaches baling moisture (18–20% for dry hay) 1–2 days faster than untedded windrows. Faster drying preserves leaf attachment, green color, protein content, and relative feed value scores — critical factors for dairy-quality forage.
What Types of Tedders Are Available?
Tedders are classified by 3 criteria: drive mechanism (rotary vs. basket), mounting method (3-point mounted vs. pull-type), and size measured in rotor count from 2 to 10+. Each classification determines tractor compatibility, working width, and operational throughput.
What Is the Difference Between Rotary Tedders and Basket Tedders?
Rotary tedders use vertically spinning rotor arms with spring-steel tines to lift and throw forage, while basket tedders use a horizontal tumbling basket mechanism. Rotary tedders dominate the modern market due to gentler crop handling, superior ground following, and higher working speeds.
- Rotary tedders handle delicate crops like alfalfa with less leaf shatter
- Basket tedders cost less and use simpler mechanical designs
- Rotary models operate effectively at 5–9 mph ground speeds
- Basket tedders suit grass hay operations with lower crop-value sensitivity
What Is a Mounted Tedder vs. a Pull-Type Tedder?
Mounted tedders attach to a tractor's 3-point hitch and suit compact and utility tractors, while pull-type (trailed) tedders connect to a drawbar and deliver wider working widths for larger operations. Center-pivot tedders are a subcategory of pull-type designs that pivot at the hitch for improved ground following.
- Mounted tedders cover 6–19 ft working widths and fold vertically for transport
- Pull-type tedders cover 19–36+ ft working widths using hydraulic fold systems
- Mounted models weigh 400–1,500 lbs; pull-type models weigh 1,500–3,500 lbs
- Pull-type tedders require hydraulic remotes for fold and headland functions
How Do Rotor Counts Affect Tedder Performance and Working Width?
Each additional rotor pair adds approximately 5–6 feet of working width, scaling from 6 ft on 2-rotor models to 36+ ft on 10-rotor machines. Higher rotor counts directly increase acres-per-hour throughput at any given ground speed.
- 2-rotor tedders: 6–10 ft working width, 4–7 acres per hour
- 4-rotor tedders: 13–19 ft working width, 9–14 acres per hour
- 6-rotor tedders: 19–26 ft working width, 14–19 acres per hour
- 8-rotor tedders: 26–32 ft working width, 19–24 acres per hour
- 10-rotor tedders: 32–36+ ft working width, 24–28 acres per hour
What Specifications Matter When Choosing a Tedder?
4 critical tedder specifications determine tractor compatibility and field productivity: horsepower requirement, working width, PTO speed, and hitch category. Matching these specifications to the tractor and operation size prevents underperformance and mechanical strain.
How Much Horsepower Is Needed to Run a Tedder?
Tedders require 15–25 PTO HP for 2-rotor models, 25–45 PTO HP for 4-rotor models, 40–65 PTO HP for 6-rotor models, and 60–100+ PTO HP for 8-rotor and larger units. PTO horsepower — not engine horsepower — determines adequate power delivery. Hilly terrain and wet crop conditions increase demand by 10–15%.
- 2-rotor tedders: 15–25 PTO HP (compact tractors)
- 4-rotor tedders: 25–45 PTO HP (utility tractors)
- 6-rotor tedders: 40–65 PTO HP (utility to row crop tractors)
- 8-to-10-rotor tedders: 60–100+ PTO HP (row crop tractors)
What Working Widths Do Tedders Come In?
Tedder working widths range from 6 feet for compact 2-rotor models to over 36 feet for large 10-rotor pull-type machines. A 19 ft tedder running at 6 mph covers approximately 14 acres per hour. Matching tedder working width to mower cutting width eliminates overlap and missed strips.
What PTO Speed and Hitch Category Do Tedders Require?
Most tedders operate on 540 RPM PTO; mounted models use Category I or Category II 3-point hitches. Larger mounted tedders may require Category II or III hitches to support weights above 1,200 lbs. Some large pull-type tedders use 1000 RPM PTO or ground-driven systems.
- 540 RPM PTO: standard for 2-rotor through 6-rotor tedders
- 1000 RPM PTO: available on select 8-rotor and larger models
- Category I hitch: supports tedders up to approximately 800 lbs
- Category II/III hitch: supports tedders from 800 to 1,500+ lbs
What Ground Speed Should You Run a Tedder At?
Optimal tedder ground speed is 5–8 mph for most crop types, balancing thorough spreading with minimal leaf shatter. Alfalfa requires 4–6 mph to preserve leaf attachment. Grass hay and timothy tolerate 6–9 mph. PTO speed, ground speed, and rotor tine trajectory interact to determine the spreading pattern and throw distance.
Which Tedders Are Best for Different Operations and Crop Types?
The best tedder matches operation scale, tractor size, and primary crop type. Small livestock operations benefit from 2–4 rotor mounted models. Large hay contractors require 6–10 rotor pull-type tedders for multi-hundred-acre cuttings.
Which Tedder Size Works Best for Small-Acreage and Compact Tractor Owners?
A 2-rotor mounted tedder with 6–10 ft working width is ideal for operators with compact tractors (15–30 HP) managing under 50 acres of hay. Mounted 2-rotor tedders weigh 400–700 lbs, attach to Category I hitches, and store upright when folded. Hobby farmers, small livestock producers, and horse operations use 2-rotor tedders for grass hay, timothy, and mixed forage.
Which Tedders Do Large-Scale Hay Contractors Prefer?
Large-scale contractors favor 6-to-10-rotor pull-type tedders with 20–36+ ft working widths that cover 15–28 acres per hour. Across 500+ acres and 3–4 cuttings per season, a 26 ft tedder saves 30–40 hours of field time compared to a 13 ft model. Contractors value hydraulic fold systems, heavy-duty drivelines, border spreading deflectors, and flotation tires for soft-ground operations.
What Crops Can You Ted Without Causing Leaf Loss?
All common hay crops — alfalfa, grass hay, timothy, orchard grass, clover, and mixed forage — benefit from tedding when operators match ground speed to crop fragility. Alfalfa suffers leaf shatter above 6 mph or below 40% moisture content. Grass hay and straw tolerate more aggressive tedding at higher speeds with minimal loss.
How Do You Properly Operate and Maintain a Tedder?
Proper tedder operation and maintenance preserve crop quality, extend machine life, and prevent mid-season breakdowns. 3 areas require attention: field technique, seasonal maintenance, and wear part replacement.
What Are the Best Practices for Operating a Tedder in the Field?
Ted hay within 2–4 hours of mowing while moisture content remains above 40% to minimize leaf shatter and maximize drying acceleration. Set rotor height so tines contact the top of the stubble without digging into soil. Reduce ground speed on slopes exceeding 10% grade and in crops with high leaf-to-stem ratios.
What Maintenance Does a Tedder Require Between Seasons?
Pre-season and post-season tedder maintenance includes greasing all rotor hub and driveline fittings, inspecting PTO shaft U-joints, and checking tine arm torque. Lubricate all zerks every 8–10 operating hours during the season. Inspect gearbox oil levels before each cutting cycle. Store tedders under cover to prevent UV degradation of rubber and plastic components.
What Are the Most Common Tedder Wear Parts to Replace?
The 5 most frequently replaced tedder wear parts are spring-steel tine arms, rotor hub bearings, PTO driveline U-joints, gearbox seals, and swivel hitch bushings. Tine arms wear fastest — expect replacement every 1–3 seasons depending on acreage and field conditions. Carry spare tine arms during cutting season to avoid downtime.
Browse Forge Claw's Tedder Selection
Forge Claw carries professional-grade tedders built for demanding hay and forage operations. From 2-rotor mounted units for compact tractors to 10-rotor pull-type machines for high-acreage contractors, every tedder in our lineup earns its spot through proven field performance. You get expert selection guidance and equipment financing available for qualified buyers.
How Do You Compare Tedder Models Side by Side?
Compare tedder models by rotor count, working width, horsepower requirement, hitch category, and weight. Match your tractor's PTO HP rating and hitch category to the tedder's specifications first. Then select the working width that aligns with your mower's cutting width and your target acres-per-hour throughput.
What Other Products Do Contractors and Operators Pair with Tedders?
Contractors and operators regularly combine tedders with complementary products to expand capability and reduce changeovers.
3 Point Hitch
Most tedders mount to tractors using 3 Point Hitch systems, making compatibility a critical consideration when selecting equipment. Operators running Category I or Category II hitches need to verify weight ratings and lift capacity before attaching tedding implements. Standard 3 Point Hitch configurations also support other hay tools like rakes and mowers on the same tractor.
Agriculture Farm Attachments
Tedders work alongside various Agriculture Farm Attachments in comprehensive hay operations, from disc mowers that cut forage to rotary rakes that form windrows. Producers often coordinate multiple implements during peak cutting season to optimize field efficiency. Agriculture Farm Attachments like conditioners and kickers complement tedding by further reducing moisture and handling dried forage.
Bale Spears
After tedders accelerate drying and forage gets baled, Bale Spears become essential for moving finished rounds or squares from field to storage. Hay operations typically use skid steers or tractors equipped with Bale Spears to transport dried bales that were previously spread by tedding equipment. Both tools serve different stages of the same forage harvest workflow.
Frequently Asked Questions About Tedders
What Are Tedders Used For?
Tedders spread and aerate freshly mown hay or forage to accelerate field drying, reduce baling moisture, and preserve nutrient quality in alfalfa, grass hay, and mixed forage crops.
Tedders reduce drying time by 30–50% by lifting compressed swaths and scattering forage across the full stubble width. Faster drying preserves protein content, leaf attachment, and relative feed value. Tedders are essential for dairy-quality alfalfa, multi-cutting operations, and rain-damaged hay recovery where re-spreading wet windrows restores drying potential.
How Much Horsepower Is Needed to Run a Tedder?
Tedders require 15 PTO HP for a 2-rotor model up to 100+ PTO HP for 8-to-10-rotor machines. Match PTO horsepower — not engine horsepower — to the tedder's rated requirement.
2-rotor tedders need 15–25 PTO HP and pair with compact tractors. 4-rotor tedders need 25–45 PTO HP from utility tractors. 6-rotor tedders require 40–65 PTO HP, and 8-to-10-rotor pull-type tedders demand 60–100+ PTO HP from row crop tractors. Hilly terrain and heavy, wet crop increase demand by 10–15% above rated minimums.
How Many Acres Per Hour Can a Tedder Cover?
A tedder covers 4–28 acres per hour depending on working width and ground speed, with a 19 ft model at 6 mph averaging approximately 14 acres per hour.
2-rotor tedders (6–10 ft) cover 4–7 acres per hour. 4-rotor tedders (13–19 ft) reach 9–14 acres per hour. 6-rotor models (19–26 ft) handle 14–19 acres per hour. 8-to-10-rotor pull-type tedders (26–36+ ft) cover 19–28 acres per hour. Actual throughput varies with ground speed, field shape, and headland turn time.
Should You Ted Hay Before or After Rain?
Ted hay after rain to re-spread flattened, wet windrows and restore drying potential. Tedding before predicted rain wastes a field pass and increases the crop's rain-exposed surface area.
Rain-damaged hay benefits from immediate tedding once field conditions allow tractor entry without rutting. Re-spreading rain-soaked windrows exposes wet material to sun and airflow, reducing the additional drying time caused by the rain event. Hay rained on while in a tight windrow suffers less damage than hay rained on while fully spread, so timing tedding around weather forecasts protects forage quality.
Do Tedders Work on Hilly or Uneven Terrain?
Rotary tedders with independent rotor suspension and ground-following frames operate effectively on slopes up to 15–20% grade and uneven terrain common in pasture-based hay fields.
Ground-following capability varies by tedder design. Mounted tedders with floating lower links follow contours through the tractor's 3-point hitch. Pull-type tedders use individual rotor suspension arms that pivot independently across ridges and depressions. Reduce ground speed by 20–30% on slopes to maintain even spreading and reduce the risk of tractor instability. Flotation tires minimize compaction on soft ground.
Browse Forge Claw's full selection of professional-grade tedders — equipment financing available for qualified buyers.
