Table 9 Specifications of the PAU Smart Seeder, Happy Seeder and Super Seeder.

From: PAU Smart Seeder: a novel way forward for rice residue management in North-west India

Description or component

Happy Seeder (HS)

Super Seeder (SS)

PAU Smart Seeder (PSS)

Mounting type

Tractor mounted

Tractor mounted

Tractor mounted

Power required (hp)

50

60

50

Transmission system

Tractor PTO (540 rpm)

Tractor PTO (540 rpm)

Tractor PTO (540 rpm)

Weight (kg)

730

1080

810

Sowing unit

 Number of furrow openers

10

11

9

 Type of furrow openers

Inverted t-type

Combination of moving disc and tine

Fixed disc type

 Row spacing (mm)

225

225

220

 Seed and fertilizer metering devices

Fluted feed rollers

Fluted feed rollers

Fluted feed rollers

Straw management unit

 Rotor blade type

Inverted gamma Flails

LJF rotavator blades

J shape blades

 Method of mounting on rotor

Hinged

Bolted, fixed

Bolted, fixed

 Diameter of rotor with blade

750 mm

458 mm

550 mm

 rpm of rotor shaft at 540 rpm of PTO shaft

1000

270

188

 Peripheral speed of rotor blades, m/s

39.3

6.5

5.4

Power transmission system for rotor unit

 Primary reduction

Spur and bevel gears combination

Spur & bevel gears combination

Spur & bevel gears combination

 Secondary reduction

V-belts

Spur gears

Spur gears