MS Mini-Seed Planters

Monosem MS planters are designed to plant raw, encrusted, and pelleted seeds accurately thus reducing seed cost and thinning labor. The MS metering unit has been specially designed for small seed crops. The meter housing is made of brass and has a cast aluminum cover with an adjustable fiber seal to keep a tight fit. The seed is picked up by vacuum at a low point in the cover allowing the meter to plant even at a very low seed level. A shoe opener creates an extremely low seed drop to maintain proper seed spacing. The front gauge wheel provides consistent seed depth control while the intermediate press wheel and rear press wheel provide proper seed-to-soil contact for optimal emergence. The simplicity of adjustments make planting multiple vegetable crops quick and easy.

Monosem offers a wide range of row unit configurations to accommodate different line spacings and bed widths.

MS Meter Box

MS Meter

Product Overview

Version A

Single Seed line unit with a minimum row spacing of 8 inches, floating linkage with up pressure

MS Version B

Version B

Single Seed line unit with a minimum row spacing of 5 ½ inches, floating linkage with up pressure

Version C

Twin Seed line unit with a minimum row spacing of 8 inches, uses a split shoe to achieve 2-4 inch spacing between lines, floating linkage with up pressure

MS Version D

Version D

Double row unit, with two metering boxes for single or twin Seed line, floating linkage with up pressure

MS Mini Seed Version G

Version G

Single Seed line unit Single Seed line unit with a minimum row spacing of 8 inches, non-floating linkage with screw adjust. Typically used in the light soils of the Yuma Arizona region

MS Mini Seed Version M

Version M

Multiple line row unit for high population planting as close as 2” between lines.

MS Mini Seed Options

Mini Seed Options

MS Mini-Seed Product Options and Configurations

MS Seed Meter

  • Every part of the metering system is precision engineered and then precision manufactured to ensure accurate seed singulation every time you plant. The quality and precision of the MS metering boxes enable an identical adjustment on all units ensuring accurate seed singulation.
  • Unlike a cup or belt metering system for round seed, the flat surface of the Monosem stainless steel disc allows even the most irregular seed shape to be suctioned and gently held to the disc.
  • Seed discs are available from: 4 to 180 holes: hole diameter range from .5 to 2.5 mm. Custom seed discs available for twin line and hill drop.
MS Seed Meter
Control Window

Control Window

A large transparent window aids in fine tuning the meter for accurate singulation. 

Seed Discs

Seed Discs

The Monosem stainless steel seed disc is the heaviest in the industry (1mm thick) and precision made for accurate seed singulation. 

Seed Meter Cover

The MS metering box cover is cast aluminum: every cover is laser measured to ensure a precise fit. A fiber gasket provides a seal between the disc & cover.

Meter Housing

The MS metering box has a rigid cast brass housing and sealed bearings making it remarkably durable.

Seed Ejector

Seed Ejector

The brass ejector block, shown mounted in the meter cover, directs seed release at the same consistent angle for consistent spacing.

Mini Seed #7

Secondary Air Cleanout

A must for planting small light seeds such as carrots and lettuce. It helps clean out plugged disc holes by feeding pressurized air to the backside of the disc.

Secondary Air Cleanout

Seed Singulator

The brass singulator eliminates doubles. A spring on the cover maintains positive contact against the disc for optimal singulation with small seeds.

Selection Adjustment

MS Selection Adjustment

The selection adjustment is made using a single lever which is easily accessible on the top of the metering boxes. The quality and the precision of the MS metering boxes enables an identical adjustment on all of the units.

Planting Double Line Crops

The MS metering boxes can plant in single line as well as double lines. For this, the single line shoe is simply replaced by a double line shoe, the disc with one line of holes is replaced by a disc with 2 lines of holes and a 2nd selector is added.

To change from Single-line to Double line,

Double-line Singulator
+
Double-line Seed Disc
+
Split-Shoe

double lines
Double Lines

+ One single adjustment for 2 selectors

+ Single line and double line on the same unit

Features

Disengaging Clutch

Disengaging Clutch

All MS units except version M comes standard with the ability to disengage each row allow you to.

Row Unit Lockup

MS row unit’s version A, B, C, and D have a lockup feature. Allowing you to configure the planter any way you want. Move the wire tab behind the peg and raise the row unit up until the linkage bar slides down in the slot.
.

MS Version A

The MS Version A unit has one meter on each row unit, with a minimum line spacing of 8 inches. It is suitable for single line vegetable planting.

MS Version A

Standard Equipment

  1. Quick adjustable clod remover
  2. Self-cleaning rubber front press wheel
  3. Narrow shoe opener
  4. Intermediate hillers
  5. Stainless steel rear press wheel
  6. Optional intermediate press wheel with scraper
  7. Depth control knob
  8. Up-pressure springs

Inter-Row Spacing

Version A Unit Spacing

MS Mini Seed Version A Line Drawing

Planting Pattern

Single Line

Front Depth Wheels

The front gauge wheel ensures optional planting depth control. Depth is adjusted using a knob and a scale can be used to accurately check planting depth.

MS Mini Seed Rubber Wheel

Rubber Wheel

The front press wheel comes standard with a self-cleaning rubber press wheel with a flex center.  It comes in two different sizes 4” x 12” and 5.5” x 10”. 

Stainless Steel Wheel

An optional stainless steel press wheel in three sizes 4” x 8”, 4” x 10”, or 5.5” x 10”, depending on seed line spacing.  A spring loaded Greenflex scraper is used to help keep the wheel clean. 

MS Mini Seed Stainless Steel Wheel

Rear Closing Wheels

MS Mini Seed Closing Stainless Steel Wheel

Stainless Steel Wheel

The rear press wheel comes standard with a stainless-steel press wheel in three sizes 4”x8”, 4”x10”, or 5.5”x10”, for different seed line spacings. A spring loaded Greenflex scraper is used to help keep the wheel clean. Stainless steel is ideal for non-sticky and sandy conditions.

Rubber Wheel

An optional 5.5”x10” self cleaning rubber press wheel with a flex center, can be substituted in place of the stainless-steel wheel. This is best suited for sticky or slightly damp conditions.
 

MS Mini Seed Closing Cage Wheel

Cage Wheel

An optional 4.5”x10” flat cage wheel has designed for sandy soils in wetter conditions. It creates a hatch pattern on top of the bed to greatly reduce compaction. Generally used in sandy soil that tend to crust over after planting.

Shoe Options

MS Mini Seed Standard Shoe

Standard Shoe

A 4 1/2-inch-tall shoe is standard equipment on the MS Version A. A wider top allows for an optional seed sensor to be install for seed monitoring. This shoe is generally used for planting 1/2″ or deeper. A similar shoe for planting 1/2″ and shallower is available but a seed sensor does not fit in this shoe.

Low Profile Shoe

An optional low-profile shoe is available on the MS Version A. The short profile reduces the seed drop by 1-inch when compared to the standard shoe, however it does not accommodate a sensor or liquid fertilizer tube.

MS Low Profile Shoe

Optional Equipment

MS Mini Seed Liquid Tube Option

Liquid Tube

The standard shoe can also accommodate a liquid fertilizer placement tube.  It places starter fertilizer on top of the seed.

V-Drag Bar

V-Drag bar can be substituted for the hillers.  The drag bar is a less aggressive way of covering the seed by dragging soil over the top of the furrow.  Usually used in lighter soils.

MS Mini Seed V Drag Bar
MS Mini Seed Double Disc Opener Option

Double Disc Openers

While the MS planters are designed to be used in well prepared beds, we know there is always the possibility of residue. A double disc opener system, with steel skirt was designed to help cut thru light residue and move it out of the way of the seed line.

Intermediate Press Wheel

An optional double intermediate press wheel, consisting of a 1” wide stainless-steel band wrapped around a cast hub rolls between the seed meter and the rear closing wheel. It is there to firmly place the seed once it has dropped in the trench, before the closing wheels close the trench. The intermediate press wheel is also available in rubber. The intermediate press wheel is compatible with split shoes widths of 2” to 3 ¼ ”. Ideally used when not watering crop up.

Intermediate Press Wheel
Photo Pending

Sync-Row Timing

Sync-row timing is a system that is designed to maintain the staggered seed drop and create the diamond pattern.  This pattern allows each plant the maximum potential to moisture, sunlight, and nutrients.  This works with seed spacing of 4” or wider.

MS Version B

The MS Version A unit has one meter on each row unit, with a minimum line spacing of 8 inches. It is suitable for single line vegetable planting.

MS Mini Seed Version B

Standard Equipment

  1. Clod remover mounted on front press wheel bracket

  2. Self-cleaning rubber front press wheel

  3. Narrow shoe opener

  4. Concave cast iron rear wheel with rubber tire

  5. Depth control knob

  6. Up-pressure springs

Inter-Row Spacing

Version B Unit Spacing

Planting Pattern

Single Line

Shoe Options

MS Mini Seed Standard Shoe

Standard Shoe

A 4 1/2-inch-tall shoe is standard equipment on the MS Version A. A wider top allows for an optional seed sensor to be install for seed monitoring. This shoe is generally used for planting 1/2″ or deeper. A similar shoe for planting 1/2″ and shallower is available but a seed sensor does not fit in this shoe.

Low Profile Shoe

An optional low-profile shoe is available on the MS Version A. The short profile reduces the seed drop by 1-inch when compared to the standard shoe, however it does not accommodate a sensor or liquid fertilizer tube.

MS Low Profile Shoe

Optional Equipment

Rubber Closing Wheel

A concave cast iron closing wheel with rubber is standard for the version B.  This wheel allows narrower row spacings.  The cast Iron wheel without the rubber is optional for dry conditions.

MS Mini Seed Rubber Closing Wheel

MS Version C

The MS Version C unit has one meter on each row unit that can plant two seed lines 2 – 4 inches apart using a split shoe. The row unit has a minimum row spacing of 8 inches. It is suitable for double line vegetable planting. The row unit is the same as a MS Version A unit, with a double seed plate and split shoe as well as an additional seed singulator.

MS Mini Seed Version C

Standard Equipment

  1. Quick adjustable clod remover

  2. Self-cleaning rubber front press wheel

  3. Twin line shoe (2”-4” spacing)

  4. Intermediate hillers

  5. Intermediate press wheel with scraper

  6. Wire mesh closing wheel

  7. Depth control knob

  8. Up-pressure springs

Inter-Row Spacing

Version C Unit Spacing

Planting Pattern

MS Mini Seed Double Line

Single Line

Double Lines
50 or 70 mm

Shoe Options

MS Mini Seed Fixed Split Shoe

Fixed Split Shoe

The fixed split shoe is offered with three different line spacing options: 2-inch, 3-inch, 4-inch.  Wings on the side of the split shoe help keep soil out before the seed drops in the furrow.

Adjustable Split Shoe

The adjustable shoe provides versatility with ability to adjust the shoes by 1/4-inch increments. Starting at 2-inch and out to 4.5” inches.

MS Mini Seed Adjustable Split Shoe

Front Depth Wheels

MS Mini Seed Rubber Wheel

Rubber Wheel

A self-cleaning rubber depth wheel is standard and can be substituted for a stainless-steel wheel. It comes in two different sizes: 4”x12” and 5.5”x10”.

Stainless Steel Wheel

Optional stainless steel press wheel comes in three sizes 4”x8”, 4”x10”, or 5.5”x10”, depending on seed line spacing. A spring loaded Greenflex scraper is used to help keep the wheel clean.

MS Mini Seed Stainless Steel Wheel

Rear Closing Wheels

MS Mini Seed Closing Stainless Steel Wheel

Stainless Steel Wheel

The rear press wheel comes standard with a stainless-steel press wheel in three sizes 4”x8”, 4”x10”, or 5.5”x10”, for different line spacings. A spring loaded Greenflex scraper is used to help keep the wheel clean. This wheel is idea for non-sticky, sandy conditions.

Rubber Wheel

An optional 5.5”x10” flex center, self cleaning rubber press wheel can be substituted in place of the stainless-steel wheel. This wheel is best suited to sticky or slightly damp conditions.

MS Mini Seed Closing Cage Wheel

Cage Wheel

An optional flat cage wheel is helps in dry sandy soil that tends to crust over. It creates a hatch pattern on top of the bed to help the seed germinate.

Optional Equipment

Intermediate Press Wheel

Intermediate Press Wheel

An optional double intermediate press wheel, consisting of a 1” wide stainless-steel band wrapped around a cast hub rolls between the seed meter and the rear closing wheel. It is there to firmly place the seed once it has dropped in the trench, before the closing wheels close the trench. The intermediate press wheel is also available in rubber. The intermediate press wheel is compatible with split shoes widths of 2” to 3 ¼ ”. Ideally used when not watering crop up.

V-Drag Bar

V-Drag bar can be substituted for the hillers.  The drag bar is a less aggressive way of covering the seed by dragging soil over the top of the furrow.  Usually used in lighter soils.

MS Mini Seed V Drag Bar

MS Version D

The MS Version D unit has two meters on each row unit, that can adjust between 3 to 4 ½” apart seed lines. The row unit has a minimum row spacing of 10 inches. Each meter can plant a single or double seed line for a total of 2 to 4 seed lines combined between the two meters. The two meters can be timed together to drop the seeds in a diamond pattern to prevent the crops from growing together, making this the ideal row unit for fresh market onion production.

MS Mini Seed Version D

Standard Equipment

  1. Clod remover mounted on front press wheel bracket

  2. Self-cleaning rubber front press wheel

  3. Two narrow shoes

  4. Intermediate hillers

  5. Wire mesh closing wheel

  6. Depth control knob

  7. Up-pressure springs

Inter-Row Spacing

Verion D Example 1
Seed line spacing options available with 10” minimum row unit spacing and single line shoes.

Version D Example 2
Seed line spacing options available with 10” minimum row unit spacing and split shoes.

Shoe Options

MS Mini Seed Standard Shoe

Standard Shoe

A 4 1/2-inch-tall shoe is standard equipment on the MS Version A. A wider top allows for an optional seed sensor to be install for seed monitoring. This shoe is generally used for planting 1/2″ or deeper. A similar shoe for planting 1/2″ and shallower is available but a seed sensor does not fit in this shoe.

Low Profile Shoe

An optional low-profile shoe is available on the MS Version A. The short profile reduces the seed drop by 1-inch when compared to the standard shoe, however it does not accommodate a sensor or liquid fertilizer tube.

MS Low Profile Shoe
MS Mini Seed Fixed Split Shoe

Fixed Split Shoe

The fixed split shoe is offered with three different line spacing options: 2-inch, 3-inch, 4-inch.  Wings on the side of the split shoe help keep soil out before the seed drops in the furrow.

Adjustable Split Shoe

The adjustable shoe provides versatility with ability to adjust the shoes by 1/4-inch increments.  Starting at 2-inch and out to 4.5” inches.

MS Mini Seed Adjustable Split Shoe

Front Depth Wheels

MS Mini Seed Rubber Wheel

Rubber Wheel

A self-cleaning rubber depth wheel is standard and can be substituted for a stainless-steel wheel. It comes in two different sizes: 5.5” x 10” and 6.5”x10”.

Stainless Steel Wheel

Optional stainless steel press wheel comes in two sizes 5.5” x 10” and 6.5” x 10”, depending on seed line spacing. A spring loaded Greenflex scraper is used to help keep the wheel clean.

MS Mini Seed Stainless Steel Wheel

Rear Closing Wheels

Rubber Wheel

The self-cleaning rubber rear wheel comes standard in either 5.5” x 10” or 6.5” x 10”. This wheel is best suited to sticky or slightly damp conditions.

Stainless Steel Wheel

Optional stainless-steel rear press wheel comes in two sizes 5.5” x 10” and 6.5”x10”, depending on different line spacings.  A spring loaded Greenflex scraper is used to help keep the wheel clean.  This wheel is idea for non-sticky, sandy conditions.

MS Mini Seed Stainless Steel Wheel
MS Mini Seed Closing Cage Wheel

Cage Wheel

An optional 6½”x10” flat cage wheel is designed for sandy soils that tend to crust in the sun. It creates a hatch pattern on top of the bed to help the seed germinate.

Optional Equipment

MS Mini Seed Liquid Tube Option

Liquid Tube

The standard shoe can also accommodate a liquid fertilizer placement tube.  It places starter fertilizer on top of the seed.

Intermediate Press Wheel

An optional double intermediate press wheel, consisting of a 1” wide stainless-steel band wrapped around a cast hub rolls between the seed meter and the rear closing wheel. It is there to firmly place the seed once it has dropped in the trench, before the closing wheels close the trench. The intermediate press wheel is also available in rubber. The intermediate press wheel is compatible with split shoes widths of 2” to 3 ¼ ”. Ideally used when not watering crop up. NOT available with split shoe on Version D

MS Mini Shoe Intermediate Press Wheel Option
MS Mini Seed Double Disc Opener Option

Double Disc Openers

While the MS planters are designed to be used in well prepared beds, we know there is always the possibility of trash. A double disc opener system, with steel skirt was designed to help cut thru light trash and move it out of the way of the seed line.

V-Drag Bar

V-Drag bar can be substituted for the hillers.  The drag bar is a less aggressive way of covering the seed by dragging soil over the top of the furrow.  Usually used in lighter soils.

MS Mini Seed V Drag Bar
Photo Pending

Sync-Row Timing

Sync-row timing is a system that is designed to maintain the staggered seed drop and create the diamond pattern.  This pattern allows each plant the maximum potential to moisture, sunlight, and nutrients.  This works with seed spacing of 4” or wider.

MS Version G

The MS Version G unit has one meter on each row unit, with a minimum line spacing of 8 inches. The row unit uses a screw adjust linkage to prevent the row unit from pushing thru the bed. It is suitable for single line vegetable planting. This is a great row unit for lettuce and broccoli production in Southern California and Arizona.

MS Mini Seed Version G

Standard Equipment

  1. Screw adjust depth control

  2. Non-floating linkage

  3. Narrow shoe opener

  4. Stainless steel rear press wheel

Inter-Row Spacing

MS Mini Seed Version G Unit Spacing

Planting Pattern

Single Line

MS Mini Seed Standard Shoe

Standard Shoe

A 4 1/2-inch-tall shoe is standard equipment on the MS Version A. A wider top allows for an optional seed sensor to be install for seed monitoring. This shoe is generally used for planting 1/2″ or deeper. A similar shoe for planting 1/2″ and shallower is available but a seed sensor does not fit in this shoe.

Low Profile Shoe

An optional low-profile shoe is available on the MS Version A. The short profile reduces the seed drop by 1-inch when compared to the standard shoe, however it does not accommodate a sensor or liquid fertilizer tube.

MS Low Profile Shoe

Rear Closing Wheels

MS Mini Seed Closing Stainless Steel Wheel

Stainless Steel Wheel

The rear 4”x8” stainless-steel press wheel comes standard. A spring loaded Greenflex scraper is used to help keep the wheel clean.  This wheel is idea for non-sticky, sandy conditions..

Scraper

A rear scraper has been designed to use in wetter conditions to clean the rear stainless-steel wheel.

Photo Pending
MS Mini Seed Closing Cage Wheel

Cage Wheel

An optional 4.5” x 10” flat cage wheel is designed for sandy soils that tend to crust in the sun.  It creates a hatch pattern on top of the bed to help the seed germinate.

Optional Equipment

MS Mini Seed Liquid Tube Option

Liquid Tube

The standard shoe can also accommodate a liquid fertilizer placement tube.  It places starter fertilizer on top of the seed.

Sync-Row Timing

Sync-row timing is a system that is designed to maintain the staggered seed drop and create the diamond pattern.  This pattern allows each plant the maximum potential to moisture, sunlight, and nutrients.  This works with seed spacing of 4” or wider.

Photo Pending

MS Verison M

The MS Version M is a multi-line bed planter. Using one rank of meters, your line spacing can be as tight as 5.5 inches. When a second rank of meters is added, that line spacing can go as low as 2.75”, with a single shoe. By adding a split shoe to each meter, the line spacing combinations greatly increase. This planter is perfect for high population crops such as spinach, lettuce, and other leafy greens. It is widely used in tree seedling production.

MS Mini Seed Version M

Standard Equipment

  1. 10 Inch steel rollers with scrapers

  2. One narrow shoe per meter

  3. Adjustable depth control knob in all four corners

  4. Standard up pressure for front and rear rollers

Inter-Row Spacing

MS Mini Seed Version M Inter-Row Spacing

Inter-Row Spacing

MS Version M Planting Rows

Multiple Lines

Shoe Options

MS Mini Seed Standard Shoe

Standard Shoe

A 4 1/2-inch-tall shoe is standard equipment on the MS Version A. A wider top allows for an optional seed sensor to be install for seed monitoring. This shoe is generally used for planting 1/2″ or deeper. A similar shoe for planting 1/2″ and shallower is available but a seed sensor does not fit in this shoe.

Low Profile Shoe

An optional low-profile shoe is available on the MS Version A.  The short profile reduces the seed drop by 1-inch when compared to the standard shoe, however it does not accommodate a sensor or liquid fertilizer tube.

MS Low Profile Shoe
MS Mini Seed Fixed Split Shoe

Fixed Split Shoe

The fixed split shoe is offered with three different line spacing options: 2-inch, 3-inch, 4-inch.  Wings on the side of the split shoe help keep soil out before the seed drops in the furrow.

Adjustable Split Shoe

The adjustable shoe provides versatility with ability to adjust the shoes by 1/4-inch increments.  Starting at 2-inch and out to 4.5” inches.

MS Mini Seed Adjustable Split Shoe

Options

10″ Roller

The 10” diameter is perfect for beds smoothing out bed tops for shallower beds. The 10” roller comes with a spring-loaded scraper to help with build up on the roller.   Collars are optional without the scraper.

13″ Roller and Collars

The 13” diameter provides a large slow turning roller to help flatten the top of beds.  The optional collars are adjustable to fit most raise beds with a minimum of 6” raised bed.  The collars help firm the sides of the beds and keep the planter perfectly centered on the bed.    

MS Mini Seed Options
Photo Pending

Sync-Row Timing

Sync-row timing is a system that is designed to maintain the staggered seed drop and create the diamond pattern.  This pattern allows each plant the maximum potential to moisture, sunlight, and nutrients.  This works with seed spacing of 4” or wider.

Vacuum Emptying System

Allows you to easily clean out left over seed from the hoppers and seed meter.  The flexible hose is connected to the vacuum of the turbofan and pulls the seed into the seed clean out canister.  Optional 5-gallon bucket for larger planters.

MS Mini Seed Vacuum Emptying System
Clean Out Cannister